The 10 Best Buy Now Pay Later Apps for Shopify UK in 2026

The short answer

For most UK Shopify stores the best buy now pay later app is Shop Pay Installments, because it runs inside the native Shopify checkout with no redirect and no separate app to install, and it has been available to UK merchants since December 2025. Pair it with Klarna if you sell fashion or lifestyle, or Clearpay if your customers skew Gen Z. Two providers is the right number for almost every store. Every provider on this list is a third-party lender, which means that since 15 July 2026 they sit under FCA supervision and the way you advertise them on your product pages is now a regulated financial promotion.

Best BNPL Apps for Shopify UK: Comparison Table

Rank	App	Payment Model	Best For	Merchant Fees
1	Klarna	Pay in 3, Pay Later, Financing	Fashion and lifestyle brands	Negotiated at onboarding, not rate-carded
2	ClearPay	Pay in 4 interest-free	Gen Z and millennial shoppers	Negotiated at onboarding, not published
3	Shop Pay Installments	Pay in 4 or monthly	All Shopify merchants	Standard Shopify Payments rates apply
4	PayPal Pay Later	Pay in 3	Brands with PayPal checkout	Standard PayPal rates
5	Zilch	Pay in 4 via virtual card	Stores wanting reach without integration	No checkout fee; commission if you partner
6	Splitit	Use existing credit card	High-ticket items	Per-transaction fee
7	Affirm	Monthly instalments up to 60 months	High-value purchases	Merchant fee varies
8	Sezzle	Pay in 4 interest-free	Budget-conscious shoppers	Published US rate 6% + $0.30; UK negotiated
9	Scalapay	Pay in 3 or 4	European-focused brands	Percentage per transaction
10	DivideBuy	Interest-free and interest-bearing	Furniture, electronics, high-value	Variable based on terms

10 Best Buy Now Pay Later Apps for Shopify UK (2026)

The following apps represent the best BNPL solutions currently available for Shopify merchants in the UK. Each has been selected based on real-world integration experience, conversion impact, customer reach, and merchant fee structures. Whether you are looking for maximum market coverage or a niche solution tailored to your specific product category, one of these providers will meet your needs.

1. Klarna

• Best For: Fashion and lifestyle Shopify stores
• Pricing: Agreed individually at onboarding; Klarna does not publish a UK rate card
• Payment Options: Pay in 3, Pay Later 30 days, monthly financing
• Availability: UK, Europe, USA, Australia

Klarna dominates the UK BNPL market with unmatched brand recognition and market penetration. The platform processes over £4 billion in annual spending across the UK alone and counts household names like ASOS, H&M, Samsung, and JD Sports among its merchant partners. The Shopify integration is straightforward via the Klarna app, and the platform offers sophisticated on-site messaging widgets that appear contextually during the customer shopping journey, encouraging larger basket sizes before checkout.

What sets Klarna apart is the flexibility of its payment options. Unlike competitors offering fixed instalments, Klarna presents customers with Pay in 3, Pay Later (full amount in 30 days), or monthly financing options, allowing each customer to select the payment method that suits their cash flow. The platform's real-time decisioning means most approvals happen instantly, and the redirect checkout experience has been refined over years to minimise friction.

We have integrated Klarna across multiple Shopify Plus builds and the conversion uplift is consistently strong. Customers respond particularly well to the brand trust that Klarna carries, especially in fashion and lifestyle verticals. The merchant fee structure is competitive at the lower end, and Klarna's underwriting means you have lower chargeback rates compared to some alternatives.

Two things changed for Klarna in the last twelve months that are worth knowing before you sign. It listed on the NYSE on 10 September 2025 under the ticker KLAR, pricing at $40 a share and raising $1.37bn at a $15.1bn valuation, which is a long way below its 2021 private peak of $45.6bn. The stock has fallen sharply since. That matters less for your checkout than for the commercial conversation: a newly public lender under margin pressure negotiates differently from a growth-stage one. The second change is that Klarna does not publish a UK merchant rate card. Aggregator sites quote figures in the region of 0.99% plus 35p for Pay in 30, but Klarna itself states that fees are agreed per merchant during onboarding. Treat any published percentage you see as a starting point for negotiation rather than a price.

Key features: On-site messaging, Pay in 3 and Pay in 30 options, integrated decisioning, native Shopify app, comprehensive merchant dashboard with analytics, fraud protection included, next-day settlement.

Why choose them: If you operate a fashion or lifestyle brand targeting UK customers, Klarna is the default choice. The brand recognition alone drives conversion, and the diversified payment options give customers flexibility. The integration is native to Shopify, meaning minimal technical overhead.

2. ClearPay

• Best For: Gen Z and millennial-focused brands
• Pricing: Not published; Clearpay markets "clear and transparent pricing" but quotes per merchant
• Payment Options: Pay in 4 interest-free fortnightly instalments
• Availability: UK, Australia, New Zealand, USA (as Afterpay), Canada

ClearPay is the UK brand of Afterpay, owned by Block Inc. (formerly Square). The platform has cultivated a reputation as the BNPL provider for younger generations, with particularly strong appeal among Gen Z and millennial shoppers. Major retailers like Boohoo, JD Sports, and Urban Outfitters rely on ClearPay, and the platform's integrated shopping discovery feature helps merchants reach new customers beyond their immediate audience.

The ClearPay model is refreshingly simple. Customers pay in 4 equal fortnightly instalments, entirely interest-free. If a payment is missed, a late fee applies, but there is no interest charged. The straightforward nature of this offering appeals to younger customers who appreciate the simplicity compared to Klarna's multiple options. ClearPay's underwriting is lenient, meaning approval rates are generally high, which boosts conversion metrics for merchants.

The platform's shopping discovery network is particularly valuable for brands wanting to reach new audiences. ClearPay customers browse merchants on the platform itself, creating a source of incremental traffic beyond your own marketing efforts. This makes ClearPay especially valuable for growing brands that need both conversion uplifts from existing traffic and access to new customer cohorts.

A naming point that trips up a lot of UK store owners reading American articles: Afterpay rebranded to Cash App Afterpay in the United States on 17 March 2025, but the UK brand did not change. Your UK customers still see Clearpay, your Shopify app is still Clearpay, and any US-written guide referring to Cash App Afterpay is describing the same lender under a different name in a different market. Clearpay Finance Ltd registered under the FCA's temporary permissions regime ahead of the July 2026 regulation date, so it is one of the providers you can be confident is authorised to write new UK agreements.

Key features: Simple pay-in-4 model, shopping discovery network, integrated messaging, merchant dashboard with forecasting, fraud protection, flexible refund handling, next-day settlement.

Why choose them: If your target audience is Gen Z or millennials, ClearPay delivers both conversion benefits and customer discovery. The simplicity of the pay-in-4 model means less customer confusion at checkout compared to platforms offering multiple payment options. The shopping discovery feature provides a direct channel to potential new customers.

3. Shop Pay Installments

• Best For: All Shopify and Shopify Plus merchants
• Pricing: No separate app fee; standard Shopify Payments rates apply
• Payment Options: 4 interest-free payments or monthly financing
• Availability: UK (since December 2025), USA, Canada

Shop Pay Installments is Shopify's native BNPL solution, powered by Affirm. If you are already using Shopify Payments, Shop Pay Installments should be your first choice for one simple reason: it requires zero additional integration work and remains entirely within the native Shopify checkout environment. There is no redirect to a third-party site, no additional loading screens, and no friction points introduced by switching to an external provider's interface.

This frictionless experience delivers measurable conversion benefits. Merchants enabling Shop Pay Installments typically report 20-30% increases in conversion rates and 30-50% increases in average order value. The feature appears seamlessly within the payment method selector, positioned as a native part of the Shopify checkout experience. Customers choosing this option never leave your environment, which is psychologically powerful from a trust and conversion perspective.

The pricing is the strongest differentiator here. Because Shop Pay Installments is included with Shopify Payments, there is no incremental app fee. You pay the standard Shopify Payments transaction fees you are already paying, and the BNPL feature costs you nothing additional. For merchants already committed to Shopify Payments, this represents exceptional value and gives you a competitive advantage over smaller stores that may find third-party BNPL fees unaffordable.

Shop Pay Installments is newer in the UK than most roundups admit. Affirm and Shopify opened early access to UK merchants in October 2025 and completed the full UK launch on 10 December 2025, so any article recommending it as an established UK option before then was describing the American product. The UK terms are their own: a Standard package covers orders from £50 to £999.99 with three interest-free monthly payments or instalments over three to twelve months, and an eligibility-gated Premium package covers £150 to £30,000 with interest-free terms up to twelve months and interest-bearing instalments up to twenty-four. Shopify's own representative example is a £900 purchase at £75 a month over twelve months at 22% representative APR.

The regulatory position is unusually clean, which matters more now than it did a year ago. Lending is provided by Affirm U.K. Limited, authorised and regulated by the Financial Conduct Authority under firm reference number 756087, with Shopify International Limited acting as an appointed representative. Affirm collects the repayments and carries the non-payment risk; you are paid in full up front regardless of whether the customer keeps up. Eligibility is narrow and worth checking before you plan around it: your store must be UK-based, selling in GBP, with both Shopify Payments and Shop Pay activated.

On performance, Shopify publishes three headline figures and three named merchant proof points. One in four merchants sees up to a 50% increase in average order value, repeat instalment shoppers check out 30% faster, and merchants switching from a third-party solution report 28% fewer abandoned carts. More usefully, Pillow Cube reports Shop Pay Installments running at 6.5% of GMV, RevAir says it takes 90% of BNPL usage despite another provider being available alongside it, and SONDO reports average cart size on Shop Pay Installments running at double a regular checkout. Those are vendor-sourced numbers, but they are attributed to named businesses rather than floating unsourced.

Key features: Native integration, no app required, no separate app fee, integrated decisioning, no customer redirect, Shop Pay one-click checkout compatibility, detailed reporting, instant approval for most customers, FCA-regulated lending through Affirm U.K. Limited.

Why choose them: If you are already on Shopify Payments, Shop Pay Installments is the obvious choice. The conversion metrics are the strongest in the industry because of the frictionless checkout experience. The pricing is unbeatable for established merchants already paying Shopify Payments fees. We recommend Shop Pay Installments as your primary BNPL option and a second provider (like Klarna or ClearPay) as a backup for customer choice.

4. PayPal Pay Later

• Best For: Stores already using PayPal checkout
• Pricing: Standard PayPal transaction rates apply
• Payment Options: Pay in 3 interest-free instalments (£30 to £2,000)
• Availability: UK, USA, Australia, Germany, France, Spain, Italy

PayPal Pay Later represents an evolution of PayPal's offering, extending the power of the PayPal brand into the BNPL space. With over 400 million active PayPal accounts globally, the platform leverages existing customer trust and payment relationships to offer BNPL functionality without requiring new account creation or credit checks. For customers already logged into their PayPal account, enabling pay later is as simple as selecting it from their payment menu.

The simplicity of the PayPal ecosystem provides a unique advantage. Customers who already trust PayPal for their general spending are predisposed to trust PayPal Pay Later. This is particularly valuable for older demographic cohorts who may be hesitant about newer BNPL providers or unfamiliar with brands like Klarna or ClearPay. The buyer protection that PayPal is famous for extends to PayPal Pay Later transactions, providing an extra layer of customer confidence.

From a technical perspective, if you already accept PayPal checkout on your Shopify store, PayPal Pay Later appears automatically without requiring separate integration work. The £30 to £2,000 spending window is well-suited for mid-range purchases, though it does not handle very small impulse purchases or high-value luxury items. The lack of additional app fees makes PayPal Pay Later cost-effective for merchants already using PayPal.

PayPal is the only provider in this roundup that publishes its merchant pricing position plainly: Pay in 3 is included in your existing PayPal pricing with no additional fee to enable it. You pay the standard PayPal transaction rate you already pay, and the instalment option costs nothing extra. In a market where Klarna, Clearpay and Zilch all decline to publish a rate card, that transparency is worth something when you are modelling the cost of adding a second or third provider.

Key features: Leverages existing PayPal accounts, no new credit checks, standard PayPal buyer protection, three equal interest-free payments, no separate integration required if using PayPal Checkout, published no-surcharge pricing, broad geographic availability.

Why choose them: If your customer base skews towards older demographics or PayPal users, PayPal Pay Later is a valuable addition to your payment options. The brand trust is exceptional, and the lack of technical implementation complexity is appealing. The combination with PayPal Checkout is particularly powerful for stores that already accept PayPal.

5. Zilch

• Best For: Stores that want BNPL reach without a checkout integration
• Pricing: No standard checkout fee; commission applies if you join as a partner retailer
• Payment Options: Pay in 4 over six weeks via a Zilch virtual Mastercard
• Availability: UK

Zilch works differently from every other provider on this list, and that difference is the reason it belongs here. There is no Zilch app in the Shopify App Store, no payment gateway to configure and no merchant onboarding to complete. Zilch issues its customers a virtual Mastercard, and the customer spends on that card at your checkout exactly as they would with any other card. From your store's point of view the transaction is an ordinary card payment, settled through Shopify Payments in the normal way, with no additional merchant fee and no separate settlement schedule to reconcile.

That means every UK Shopify store already accepts Zilch whether it knows it or not. What you can choose to do is become a partner retailer, which puts your brand inside the Zilch app where its customers browse for places to spend. Partner retailers pay Zilch a commission on the sales it refers, and Zilch has said publicly that commission across its top thirty partners averages over six per cent. Non-partnered retailers pay nothing, and Zilch instead charges the customer a small fee at the point of purchase.

Zilch has grown into a genuinely significant UK player. It passed 5.5 million registered customers and 200 million dollars of annual revenue during 2025, secured its own FCA payment services licence in December 2025 to reduce its reliance on third-party partners, and announced the acquisition of Fjord Bank in January 2026 to fund European expansion. For a UK merchant the practical read is simple: you get the sales without doing anything, and the partnership is an acquisition channel decision rather than a payments decision.

Key features: Virtual Mastercard model requiring no integration, no standard merchant fee, in-app retailer marketplace for partner brands, FCA payment services licence held directly, ad-subsidised commission model, UK-only focus, works alongside any other BNPL provider you already offer.

Why choose them: You do not choose Zilch so much as decide whether to partner with it. If you want incremental reach and you are comfortable paying a referral commission on sales that come through the Zilch app, the partnership is worth modelling. If you are not, you still take Zilch payments at no cost. Either way it is the one provider on this list that carries no integration burden at all.

6. Splitit

• Best For: High-ticket Shopify stores
• Pricing: Per-transaction fee, no consumer fees
• Payment Options: Split payments using existing credit card
• Availability: UK, USA, Canada, Australia, Europe

Splitit represents a fundamentally different approach to BNPL. Rather than requiring customers to apply for credit or undergo a new financial product, Splitit splits charges across multiple transactions on a customer's existing credit card. This means customers need no new application, no credit check, and no additional accounts to manage. The approval is instantaneous because Splitit is simply dividing existing credit card transactions.

This model eliminates a major pain point of traditional BNPL. Customers can approve payments instantly without providing personal data, which is particularly valuable for privacy-conscious users and builds trust more quickly than competitors requiring formal applications. For merchants, this means no chargebacks related to payment failures or non-approval because the payment method already exists and has been verified by the customer's bank.

The lack of interest and fees for consumers is a significant differentiator. Customers are not taking on debt or paying interest to split their purchase. From a compliance and regulatory standpoint, Splitit sits outside traditional BNPL regulation because it is not technically credit. This has made Splitit popular with merchants wanting to offer flexibility without the growing regulatory overhead of traditional BNPL. Samsung and other premium brands have adopted Splitit, particularly for high-ticket electronics and luxury items.

Key features: No new credit applications, instant approval, no consumer interest or fees, uses existing credit cards, regulatory simplicity, white-label option, global availability, Samsung Wallet integration, fraud prevention included.

Why choose them: If you sell high-ticket items (electronics, furniture, luxury goods), Splitit removes barriers to conversion by making payment splitting frictionless. The elimination of credit checks means faster approvals and more satisfied customers. The lack of regulatory complexity is increasingly valuable as UK BNPL regulation tightens.

7. Affirm

• Best For: High-value purchases on Shopify
• Pricing: Merchant fees vary by plan
• Payment Options: Monthly instalments from 4 payments to 60 months, 0-36% APR
• Availability: USA, Canada, expanding UK

Affirm is the largest pure-play BNPL provider globally and the technology behind Shop Pay Installments. In addition to powering Shopify's native BNPL, Affirm is available as a standalone integration for merchants wanting access to Affirm's broader financing options. The key strength of Affirm is the range of financing terms available, from short-term pay-in-4 up to 60-month financing plans at various APR levels.

Affirm's decisioning engine is sophisticated, offering different terms and APR to different customers based on their creditworthiness. For high-value purchases like furniture, appliances, or luxury goods, this ability to offer longer-term financing (up to 60 months) or variable APR is transformative. A customer might be able to finance a £3,000 sofa over 36 months at a reasonable APR, whereas traditional BNPL providers cap out at £500 or £1,000 limits.

The UK expansion is gaining pace, with Affirm increasingly available to UK merchants. If you are selling high-ticket items, Affirm's presence as both the Shop Pay backend and a standalone option gives you flexibility. The real-time decisioning means customers see exactly what terms they qualify for before committing to purchase, reducing surprises and chargebacks.

Key features: 60-month financing options, variable APR terms, real-time decisioning, white-label option, merchant dashboard with insights, fraud protection, highest spending limits in BNPL industry, Shop Pay integration.

Why choose them: If you sell high-value items or want to offer longer-term financing options, Affirm is the gold standard. The flexibility to offer everything from four-payment plans to five-year finance at various APRs means you can serve a wider range of customer financial situations. Affirm's expanding UK presence makes now the time to explore integration.

8. Sezzle

• Best For: Budget-conscious Gen Z shoppers
• Pricing: 6% + £0.30 per transaction
• Payment Options: 4 interest-free fortnightly payments
• Availability: USA, Canada, growing UK presence

Sezzle has positioned itself as the responsible BNPL provider, emphasising customer financial health and literacy. The platform includes Sezzle Up, a feature that helps customers build credit scores while using BNPL services. This appeals particularly to younger customers who are early in their credit journeys and value the opportunity to demonstrate creditworthiness alongside accessing immediate purchasing power.

The transparent fee structure (6% plus 30p per transaction) is straightforward for merchants to budget. Sezzle does not include hidden charges or variable fees that fluctuate based on customer behaviour. For merchants operating on thin margins, this predictability is valuable. The platform also offers payment rescheduling functionality, allowing customers to adjust payment dates if they face temporary financial hardship, which reduces missed payments and chargebacks.

Sezzle's backend analytics are robust, giving merchants insights into customer behaviour, repeat purchase rates, and BNPL adoption patterns. The platform is growing in the UK market and is a solid alternative to the more established Klarna and ClearPay if you want to differentiate your offering or reach customer segments prioritising financial responsibility.

Key features: Sezzle Up credit-building feature, flexible payment rescheduling, transparent fee structure, comprehensive merchant analytics, customer education focused, responsible lending messaging, mid-size transaction focus.

Why choose them: If your audience values financial responsibility and you want to position BNPL as part of a customer's credit-building journey, Sezzle is distinct. The clear fee structure and rescheduling functionality reduce the risk of missed payments. Growing UK presence makes this a good time to explore partnership.

9. Scalapay

• Best For: European-focused Shopify merchants
• Pricing: Percentage per transaction
• Payment Options: Pay in 3 or 4 interest-free instalments
• Availability: UK, Italy, France, Germany, Spain, Portugal, Finland, Belgium, Netherlands

Scalapay is an Italian-founded BNPL provider expanding rapidly across Europe and into the UK. The platform specialises in cross-border commerce, making it exceptionally valuable for Shopify merchants selling across multiple European markets. If you ship to customers in Germany, France, or Spain, Scalapay enables you to offer BNPL in local currencies and languages, dramatically reducing friction for international customers.

The three-or-four payment model is flexible, allowing customers to choose whether they prefer three payments or four fortnightly instalments. This flexibility appeals to customers with different cash-flow patterns. Scalapay's merchant dashboard includes detailed reporting on international sales, cross-border payment patterns, and success rates by geography, helping you optimise your European expansion strategy.

While Scalapay has lower brand recognition in the UK than Klarna or ClearPay, the platform is growing quickly and has secured significant investment and partnerships. For fashion and lifestyle brands with European ambitions, Scalapay solves a real problem that other UK-focused BNPL providers do not address. The platform's multilingual and multi-currency support is genuinely sophisticated.

Key features: Multi-currency support, broad European coverage, flexible three-or-four payment options, international merchant dashboard, white-label option, fast settlement, local payment method integration by country.

Why choose them: If you sell to European customers or have ambitions to expand across Europe, Scalapay is invaluable. The local currency and language support removes friction for international customers. For UK merchants expanding into Europe, Scalapay is more suited than UK-only providers.

10. DivideBuy

• Best For: Furniture, electronics, and high-value UK retailers
• Pricing: Variable based on finance terms
• Payment Options: Interest-free and interest-bearing finance, up to 12 months
• Availability: UK only

DivideBuy represents a different category within the BNPL space. Whilst most BNPL providers focus on short-term interest-free payments, DivideBuy is an FCA-regulated point-of-sale finance provider that offers both interest-free and interest-bearing finance for terms up to 12 months. This positions DivideBuy perfectly for furniture, electronics, and other high-value items where customers genuinely need longer-term finance to afford the purchase.

The key strength of DivideBuy is the ability to offer true point-of-sale finance embedded directly into your Shopify checkout. Customers see finance options at the exact moment they are making a purchase decision, and the integration with DivideBuy's decisioning engine means approvals happen in seconds. For merchants selling sofas, garden furniture, or high-end electronics, this bridge between instant BNPL and longer-term consumer finance is powerful.

The FCA regulation means DivideBuy must follow strict affordability and responsible lending practices. For customers, this translates to peace of mind that the finance product is properly regulated. For merchants, it means lower risk of regulatory issues as BNPL regulation tightens. The 12-month term option handles purchase price points that traditional BNPL cannot accommodate.

Key features: 12-month finance terms, interest-bearing and interest-free options, FCA-regulated, white-label checkout, instant customer decisioning, UK specialist, point-of-sale finance integration, comprehensive compliance management.

Why choose them: If you sell furniture, home improvement products, or high-ticket electronics, DivideBuy's 12-month finance terms are superior to any BNPL alternative. The FCA regulation provides regulatory clarity that other BNPL providers lack. The specialist UK focus means the product is designed precisely for the UK market.

What Is Buy Now Pay Later?

Buy now pay later is a payment method that allows customers to make purchases immediately and pay for those purchases over a series of instalments, typically without interest. Unlike traditional credit products that require credit checks and formal applications, BNPL products emphasise speed and simplicity. A customer can be approved for BNPL in seconds using just an email address and basic identity information.

From a merchant perspective, BNPL works by the provider paying the merchant the full order value immediately (or within one business day), and then collecting payments from the customer in instalments. The merchant gets paid upfront, the customer gets flexible payment, and the BNPL provider assumes the credit risk. The merchant pays a fee, typically between 2% and 8% per transaction, for this service.

BNPL has evolved to include two distinct models. Transparent BNPL (interest-free models from Klarna, ClearPay, and others) appeal to customers who want flexibility without cost. Finance BNPL (from providers like Affirm and DivideBuy) offers longer-term options with variable interest rates, serving customers making larger purchases who need more affordable monthly payments. Both models are valuable depending on your product category and price points.

Benefits of Buy Now Pay Later for Shopify Merchants

The primary benefit of BNPL for merchants is an immediate uplift in conversion rates. Customers frequently abandon shopping carts because the total price feels unaffordable at the moment of purchase. BNPL removes this barrier by allowing customers to spread payments across weeks or months. The psychological impact of "four payments of £50" feeling more affordable than a single £200 charge is well-documented and powerful.

The secondary benefit is increased average order value. When customers know they can pay in instalments, they are more willing to purchase higher-value items or add additional products to their basket. Merchants consistently report AOV increases of 30-50% after enabling BNPL. For a store generating £100,000 monthly in sales, a 40% AOV increase represents £40,000 in additional monthly revenue before considering the BNPL fees.

BNPL also attracts younger customer demographics. Customers aged 18-35 have higher BNPL adoption rates than older cohorts, and enabling BNPL on your store signals that you understand modern purchasing preferences. This is particularly valuable for fashion, beauty, and lifestyle brands where younger customers represent significant market share.

The final major benefit is competitive advantage. If your competitors do not offer BNPL and you do, you capture customers that would otherwise shop elsewhere. Conversely, if your competitors offer BNPL and you do not, you lose customers at checkout who specifically search for BNPL options. BNPL has become so common that not offering it increasingly feels like a competitive disadvantage rather than a differentiating feature.

How to Choose the Right BNPL App for Your Shopify Store

The most important factor in choosing BNPL is understanding your customer demographics. If your core audience is Gen Z and millennials, ClearPay is likely to outperform alternatives because your customers are already familiar with the brand. If your audience skews older, Klarna or PayPal Pay Later might resonate more strongly. If you are unsure, Klarna is the safest choice because it has the highest brand recognition across age groups in the UK.

The second factor is your average order value. If your typical order is under £100, simple four-payment BNPL solutions (Klarna, ClearPay, Shop Pay Installments) work well. If your average order is £500 or above, you need a provider like Affirm or Splitit that handles higher values. If you sell furniture or electronics with orders regularly exceeding £2,000, DivideBuy's longer-term financing is essential.

Merchant fees should factor into your decision, but do not make it the primary consideration. A provider charging 6% but delivering a 40% conversion uplift is vastly superior to a provider charging 3% but delivering no uplift. Run the mathematics: if adding BNPL increases your conversion rate by 25% with a 3% fee, is that better or worse than your current situation? In nearly all cases, the conversion uplift more than offsets the fee.

Integration complexity matters less for Shopify merchants than for other platforms because Shopify provides native apps for all major BNPL providers. However, Shop Pay Installments requires literally zero integration work if you are already on Shopify Payments, making it the easiest option. If you want multiple BNPL providers, consider how many separate integrations your team can manage and support.

Finally, consider your specific product category. Fashion brands benefit most from Klarna and ClearPay. High-ticket sellers need Affirm or Splitit. Furniture retailers need DivideBuy. European merchants need Scalapay. Rather than trying to optimise for every possible BNPL provider, choose one or two that match your specific business model and customer base.

How BNPL Affects Shopify Checkout Conversion

BNPL increases conversion by solving the most common reason customers abandon shopping carts: sticker shock at the total payment amount. When a customer sees a £300 total and realises they need to pay the entire amount immediately, many will leave the store. When that same customer sees "four payments of £75", the purchase feels far more accessible and the abandonment risk drops significantly.

The visibility of BNPL options within your checkout is critical. For Shop Pay Installments, the option appears natively within the payment method selector, making it prominent without being intrusive. For external BNPL providers, the visibility depends on how prominently you display their payment buttons and messaging. Many merchants find that adding simple messaging like "or split into 4 payments" above the add-to-cart button has measurable impact on conversion even before checkout.

BNPL also functions as a trust signal. When customers see that your store accepts Klarna or other reputable BNPL providers, it signals that you are a legitimate, established business. The presence of multiple payment options including BNPL is subconsciously interpreted as a signal of trust. This is particularly powerful for new stores or brands that customers are less familiar with.

The data shows that customers specifically searching for BNPL options have higher intent and lower bounce rates. These customers are actively selecting BNPL at the payment stage, meaning they have already decided to purchase and simply want to split the payment. Supporting BNPL means you capture these high-intent customers that alternative payment methods might miss.

What the FCA's 15 July 2026 Rules Change for Your Store

This is the single biggest change to UK buy now pay later since the products arrived, and most of the roundups you will find still describe regulation as something that is coming. It has arrived. 15 July 2026 was Regulation Day. From that date, deferred payment credit falls under FCA supervision, and the temporary permissions regime that let existing providers keep trading while they sought full authorisation closed its registration window on 1 July 2026. Any provider that is neither authorised nor registered under that regime cannot write new UK agreements. Agreements entered into before 15 July remain outside the regime.

The rules came out of policy statement PS26/1, published on 11 February 2026. The scope is specific: deferred payment credit means interest-free credit repayable in twelve or fewer instalments over twelve months or less, provided by a third-party lender. That definition captures Klarna, Clearpay, Shop Pay Installments and the rest of this list. It deliberately excludes credit that a retailer extends itself, so if you run your own in-house pay-later scheme rather than routing through a lender, you sit outside the regime.

What providers now have to do

Lenders must give clear upfront information on what each payment is, when it falls due and what happens if it is missed. They must run proportionate affordability and creditworthiness checks before lending rather than approving on a thin identity check. They must support customers in financial difficulty and signpost free debt advice. Their customers now have access to the Financial Ombudsman Service. And the whole product sits under the Consumer Duty, with product sales data reported to the FCA.

The practical consequence at your checkout is that approval is no longer instant and universal in the way it was. A meaningful minority of customers who would have been approved in 2025 will now be declined, particularly those already carrying multiple BNPL balances. If your conversion rate on BNPL orders has softened since July, that is the most likely explanation and it is not something a different provider will fix.

What it means for you as a retailer

The regime is aimed at lenders, not merchants, but there is one obligation that lands squarely on your product pages. A financial promotion for deferred payment credit must be approved by an FCA-authorised firm. In plain terms: the badge, the widget, the "or 4 payments of £37.50" line under your price and any email or social post advertising the option are financial promotions, and you cannot write your own copy for them. Use the provider's approved messaging components exactly as supplied, do not paraphrase the terms, and do not build a bespoke instalment calculator into your theme without the provider signing it off.

That is a change of habit for a lot of merchandising teams. If your theme has a hard-coded BNPL badge that somebody added years ago, or a hero banner that mentions Klarna in copy your agency wrote, that is the thing to audit first. Replace hand-written instalment copy with the provider's on-site messaging script and let the widget calculate the figures, because the widget's wording has been through the approval process and yours has not.

Why it is good news, mostly

The FCA's own numbers explain why regulation arrived. Its Financial Lives Survey found that 20% of UK adults, around 10.9 million people, had used buy now pay later in the twelve months to May 2024, up from 17% and 8.8 million in 2022. UK BNPL lending grew from £0.06bn in 2017 to over £13bn in 2024. By May 2024, 1.1 million UK adults held £500 or more of outstanding unregulated BNPL debt and 5.3 million held £50 or more. A £13bn credit market sitting outside the consumer credit regime was never going to last.

For merchants the upside is trust. BNPL now carries ombudsman access and Consumer Duty obligations, which makes it easier to defend as a payment option to a cautious board and removes the "is this even regulated?" objection from older customer cohorts who have been reluctant to use it. The cost is a slightly lower approval rate and a genuine constraint on how you advertise it.

How to Set Up BNPL on Your Shopify Store, Step by Step

The technical setup is the easy part. Most of these apps take twenty to thirty minutes to configure, and the real waiting is the provider's underwriting decision on your business, which typically runs one to five business days. Here is the order to do it in.

Step one: check your eligibility before you start

Shop Pay Installments has the tightest eligibility criteria and the fewest ways round them. Your store must be UK-based, selling in GBP, with Shopify Payments active and Shop Pay switched on. If you are on a third-party gateway rather than Shopify Payments, Shop Pay Installments is not available to you at any price, and that alone is often the argument for moving. For third-party providers the gate is commercial rather than technical: expect them to ask for trading history, monthly volume and your product categories, and expect a decline if you sell in a restricted category.

Step two: install from the Shopify App Store

Before installation, read what each app asks for. Payment apps request access to orders, customers and checkout, which is appropriate, but it is worth checking the permissions against the app's stated function and confirming the vendor's security and data handling standards. Every provider in this list is PCI compliant and none of them require you to handle card data yourself, which is one of the quieter advantages of using an established company rather than a bespoke instalment plugin.

Klarna, Clearpay, Sezzle, Scalapay and DivideBuy all publish apps in the Shopify App Store, and installation follows the standard flow: search the app, review the permissions it requests, install, then connect it to your existing merchant account or open a new one. Shop Pay Installments needs no app at all; you enable it from Settings, then Payments, inside your Shopify admin. PayPal Pay in 3 needs nothing either if you already accept PayPal Checkout, because it appears automatically once your account is eligible.

Step three: turn on on-site messaging

This is where the conversion actually comes from, and it is where most stores stop too early. Every major provider ships an on-site messaging component that renders the instalment breakdown on your product pages, in the cart and at checkout. Add it through the theme editor as an app block, position it directly beneath the price rather than below the fold, and check it updates correctly when a customer switches variant, because a hard-coded price in a messaging block will show the wrong figure on a more expensive size or colourway. Since July 2026 you must use the provider's supplied component rather than writing your own copy.

Step four: order your payment methods deliberately

In Settings, then Payments, you control the order that payment methods appear at checkout. Cards first, then your primary BNPL option, then anything else. Offering five instalment providers in a stack does not increase conversion, it increases the time a customer spends comparing them, and comparison at the payment step is where carts go to die.

Step five: test properly before you announce it

Place a real low-value test order through each provider and take it all the way to a completed order, then refund it and watch what happens to the instalment plan, because refund handling differs between providers and is the thing your customer support team will be asked about first. Check the messaging renders on Safari on iOS and Chrome on Android, not just on your desktop, since most UK BNPL traffic is mobile. Confirm the order appears correctly in your Shopify admin with the right payment gateway attributed, and confirm settlement lands in your bank on the schedule the provider promised.

Step six: measure adoption, then optimise

Track what share of eligible orders actually use BNPL. Somewhere between 15% and 30% of eligible orders is a healthy range for a UK store with prominent messaging. If you are below that, the usual cause is placement rather than provider choice, and moving the messaging above the fold on product pages is the highest-leverage fix. Shopify's own data suggests adding an instalments banner to product and cart pages can lift instalment order volume by up to 55%.

Merchant Fees and the Real Cost Per Order

Merchant fees are what store owners worry about most and model least. Getting this right is what separates BNPL that lifts conversions from BNPL that quietly eats margin across a whole year of online sales.

The honest position on UK pricing is that almost nobody publishes it. Klarna states that fees are agreed individually during onboarding. Clearpay's retailer page markets transparent pricing without giving a figure. Zilch has no standard checkout fee because it does not sit in your checkout. Only PayPal publishes a clear position, which is that Pay in 3 carries no surcharge above your existing PayPal rate. Any article quoting you a precise UK percentage for Klarna or Clearpay is quoting an aggregator, not the provider.

What you can do is model the decision properly. Take a £120 order at a 45% gross margin, so £54 of gross profit. A 5% BNPL processing fee costs £6, taking gross profit to £48, an 11% reduction. For that to be worth doing, BNPL needs to generate more than 11% incremental gross profit through some combination of higher conversion and higher order value. On the published uplift figures it comfortably does. The maths gets uncomfortable at low margin: the same 5% fee on a product carrying a 20% margin consumes a quarter of your gross profit, and at that point BNPL needs to be pulling in genuinely incremental orders rather than cannibalising card payments you would have won anyway.

The cannibalisation question is the one nobody asks. If half your BNPL orders are customers who would have paid by card regardless, you are paying a processing fee premium on those orders for nothing. The way to test it is to look at what happened to total orders, not to BNPL orders, in the eight weeks after you switched it on. If total order volume moved, the fee is buying you something. If only the payment mix moved, it is not.

Processing fees are not the only line worth modelling. Some providers require a down payment or deposit from the customer at the point of purchase, typically the first of four instalments, which changes how the option reads on your product pages even though it costs you nothing. Others charge nothing at checkout and take a commission on referred sales instead. Ask specifically how processing fees are applied to partial refunds, chargebacks and currency conversion before you sign, because those three are where the effective rate drifts above the headline rate.

Two smaller costs are worth naming. Refunds usually do not return the processing fee, so a high-return category pays the fee twice in effect. And settlement timing varies: most providers pay within one to three business days, which is slower than card settlement and worth factoring into cash flow if you are ordering stock against incoming revenue.

Pros and Cons of the Main Providers at a Glance

Every provider on this list trades something away to be good at something else. Below are the pros and cons of each, written for store owners deciding where to spend integration time rather than for shoppers comparing companies. Digital wallets, card rails and instalment products all compete for the same checkout real estate, so the trade-offs matter.

Shop Pay Installments

Pros: No redirect, no app, no separate merchant account, no additional app fee, FCA-regulated lending through Affirm U.K. Limited, the widest order range in the list at £50 to £30,000 on the Premium package, and the strongest published conversion figures. Cons: Requires Shopify Payments, which rules it out entirely if you use another gateway. No brand recognition of its own with UK shoppers, who know Klarna and Clearpay but not "Shop Pay Installments". Only in the UK since December 2025, so the local track record is short.

Klarna

Pros: By some distance the strongest brand recognition with UK consumers, three payment structures rather than one, mature on-site messaging, and an audience that actively looks for it. Cons: No published rate card, which makes budgeting harder. A redirect flow that adds a step. And a newly listed parent under visible margin pressure, which shapes how commercial negotiations go.

Clearpay

Pros: The simplest customer proposition on the list, four equal payments and nothing else to understand. Genuinely strong with Gen Z and younger millennial shoppers. The in-app shop directory sends incremental traffic. Cons: One payment structure only, so no route to serve high-value orders. Pricing not published. And its US rebrand to Cash App Afterpay makes researching it needlessly confusing.

PayPal Pay in 3

Pros: No additional fee over your standard PayPal rate, no separate integration if you already take PayPal, and unmatched trust with older customers who will not open a Klarna account. Cons: The £30 to £2,000 window excludes both impulse purchases and high-ticket items, and there is no monthly financing route above it.

Affirm, Splitit and DivideBuy

Pros: These three exist for order values the pay-in-four providers cannot serve. Splitit uses the customer's existing credit card limit so there is no new credit application. DivideBuy is an FCA-regulated point-of-sale finance provider offering terms up to twelve months, which is the right shape for furniture and high-ticket electronics. Cons: Higher merchant costs, longer approval processes, and irrelevant to you if your average order value sits under £200.

What the Shopify App Store Reviews Actually Tell You

Before you install anything, read the app listing reviews rather than the marketing page, because the two describe different products. Review counts and star ratings on the Shopify App Store are the single best free signal of what integrating a provider is actually like, and they consistently surface three things the vendor pages never mention.

The first is support responsiveness. Payment apps break in ways that cost money immediately, and the reviews are where you find out whether a provider answers within hours or within weeks. Look specifically at the one-star and two-star reviews and check whether the vendor has replied to them, because a vendor that publicly answers complaints tends to answer tickets too.

The second is theme compatibility. On-site messaging blocks are the most common failure point, and reviews will tell you whether a provider's widget works cleanly with Dawn and the standard Online Store 2.0 themes or whether merchants are routinely paying developers to make it render. Klarna's own on-site messaging app carries a notably low rating relative to Klarna's brand strength, and the reviews explain why: the messaging component is fiddlier to place than the checkout integration is to enable.

The third is settlement and reconciliation. Merchants complain in reviews about payout timing and about how transactions map into their accounting exports long before any of that appears in a comparison article. If a provider has a pattern of reconciliation complaints, that is a real cost in your finance team's time even though it never appears in the fee.

Star ratings on their own are a weak signal. A provider showing 4.8 stars across 130 reviews and one showing 2.6 stars across 100 reviews are telling you different things about different products, and in Klarna's case the low-rated listing is the on-site messaging app rather than the payment integration. Read what the stars are attached to. Look at the size of the user base behind the score too, because twenty reviews from a niche app and two thousand from a major provider carry very different weight.

Read the most recent thirty reviews rather than the overall score. A four-star average built over six years tells you very little about what installing the app is like this quarter, particularly for providers that have rebuilt their integration on Shopify's checkout extensibility framework in the last eighteen months.

Testing, Troubleshooting and the Problems You Will Actually Hit

Once the setup process is done, the failures are predictable. These are the ones that come up on almost every build, with the fix for each.

The instalment figure is wrong on variant change

A messaging block that renders £30.00 on the small and still says £30.00 on the large is the single most common bug, and it happens when the block reads the product's base price rather than the selected variant. Test every product template, not just one. Some themes need the app block re-added after a theme update because the section reference breaks silently.

The badge does not render on some browsers

Check Safari on iOS and Chrome on Android specifically. Provider scripts are usually fine on desktop and occasionally fail on older mobile browsers where a content security policy or a lazy-loading script blocks them. Since the majority of UK BNPL traffic is mobile, a badge that only renders on desktop is close to worthless.

Refunds and partial refunds

Issue a real refund on a test order and watch what happens to the customer's repayment options. Full refunds cancel the remaining instalment plan cleanly with every major provider. Partial refunds are where behaviour diverges: some providers reduce the final payment, others recalculate the whole schedule, and your customer support team needs to know which before a customer asks. In most cases the processing fee is not returned to you, so a category with a high return rate carries a real cost that never appears in the headline rate.

The app is approved but nothing shows at checkout

Usually a currency or country mismatch. Shop Pay Installments will silently not appear if your store's default currency is not GBP. Providers also apply order value floors and ceilings, so a £22 basket will not show an option with a £30 minimum, and that is correct behaviour rather than a fault.

Reconciliation does not match your accounts

Each provider settles on its own schedule and its own fee deduction pattern, which is the strongest practical argument for running two providers rather than five. Export a month of transactions from each provider and reconcile them against your Shopify payouts before you consider the integration finished, because finding a mismatch in month one is an afternoon and finding it at year end is a week.

Where BNPL Sits in the Rest of Your Payment Stack

Buy now pay later is one payment method among several, and it works best when the rest of the stack is deliberate. Digital wallets now carry a majority of ecommerce transactions in most Western markets, so Shop Pay, Apple Pay and Google Pay belong at the top of your checkout ahead of instalment options, because a returning customer wants speed rather than credit. Instalments are for the moment the total gives someone pause, which is a different job.

Think about it by order value. Under about £40, instalments rarely change a decision and a fast wallet checkout converts better. Between £40 and £500, pay-in-three and pay-in-four do real work. Above £500 you are into genuine point-of-sale finance with a deposit and a longer term, which is a different product with different companies behind it. Mapping your order value distribution against those bands is a twenty-minute exercise in Shopify analytics that will tell you more than any comparison article, including this one.

The same logic applies to your gateway choice. If you are running a third-party payment gateway rather than Shopify Payments, you are locked out of Shop Pay Installments entirely, and that is a large cost to carry for a small saving on card rates. We have moved several stores onto Shopify Payments purely for this reason and the instalment revenue paid for the switch inside a quarter.

Finally, keep an eye on the wider optimisation picture. BNPL is a conversion lever, but it is not the biggest one on most stores. If your product pages are slow, your shipping thresholds are unclear or your returns policy is buried, fixing those will move more revenue than adding a fourth instalment provider. Our guides on Shopify conversion rate optimisation and choosing the right Shopify payment gateway cover the neighbouring decisions, and if you sell internationally, international pricing on Shopify affects which instalment options a customer is offered in each market.

Providers That No Longer Serve UK Shopify Merchants

Roundups age badly in this category, and the 2026 lists circulating online still recommend at least two providers that UK merchants cannot use. If you are working from an older article, check these before you plan around them.

Laybuy entered administration on 24 June 2024, with FTI Consulting appointed as administrators. It is not taking new customers and it is not available to merchants. It still appears near the top of several 2026 "best BNPL apps for Shopify UK" lists, including, until this update, an earlier version of this one. If a comparison article recommends Laybuy to you, that article has not been checked against reality in over two years and nothing else in it should be trusted either.

Zip, formerly Quadpay, wound down its UK operations during its 2022 and 2023 strategic review, exiting the UK alongside Singapore, the Philippines and Mexico to concentrate on the US, Australia and New Zealand. It remains a significant provider in those markets, which is why American articles still cover it, but it is not an option for a UK store.

The broader point is that this is a consolidating market with real casualties, and the FCA regime will accelerate that. Authorisation costs money and requires compliance infrastructure that smaller providers may not be able to fund. When you choose a provider, the question is not only what it charges but whether it will still be there in three years, because migrating a payment method that your customers have learned to expect is more disruptive than adding one.

Risks and Considerations for Shopify Merchants

Merchant fees can erode margins if you do not plan carefully. A BNPL fee of 5-6% on a product with a 20% gross margin is consuming 25-30% of your profit. Before implementing BNPL, calculate whether the conversion uplift justifies the fee impact. In most cases it does, but for low-margin products or mature categories, BNPL fees can be problematic.

Chargebacks and disputed transactions remain a risk despite BNPL providers' fraud prevention. If a customer claims they did not make a purchase or disputes a charge, the BNPL provider may reverse the payment, leaving you without both the product and the payment. Fraud prevention is improving but represents an ongoing risk compared to cash-in-hand transactions.

Consumer over-spending is a valid concern that regulators and responsible lenders are working to address. When a customer can split any purchase into instalments, the temptation to buy beyond their means increases. Responsible BNPL providers like Sezzle and regulated providers like DivideBuy implement safeguards to prevent over-lending, but this remains an area of societal concern that may lead to further regulation.

Regulatory changes in the UK and Europe continue to evolve. What is allowed today may be restricted tomorrow. The FCA's regulation of BNPL is still developing, and additional restrictions on lending or merchant fees could impact your ability to use BNPL effectively. Stay informed about regulatory developments affecting BNPL in your markets.

Too many BNPL options can create decision fatigue at checkout. If you offer five different BNPL providers, customers may spend excessive time comparing options rather than completing purchase. We typically recommend two to three BNPL providers maximum. Choose one or two primary options and potentially one backup alternative.

Buy Now Pay Later Trends for the Rest of 2026

Consolidation is the story. Regulation raises the cost of operating, and the providers that cannot fund authorisation and compliance will either sell or exit. Laybuy and Zip already left. Expect the UK market to settle around a smaller group of well-capitalised names, and factor that into which provider you build your checkout around.

Approval rates are settling lower. Proportionate affordability checks are now mandatory, so the near-universal instant approval that characterised 2023 and 2024 is gone. Plan for a slightly lower BNPL conversion rate and stop treating a decline as an integration fault.

Advertising is now a compliance surface. The financial promotion approval requirement means your merchandising team can no longer write BNPL copy freely. The stores that handle this well will standardise on provider-supplied components; the ones that do not will find out about it in an enforcement letter.

Zilch is proving the card-based model works. A provider that reaches customers without asking merchants to integrate anything is a genuinely different competitive shape, and its FCA payment services licence and Fjord Bank acquisition suggest it intends to keep going. Watch whether others copy it.

B2B deferred payment is the growth edge. Wholesale and trade buyers want net terms, and several providers are extending instalment and invoice-based billing into B2B on Shopify. If you run a wholesale channel on Shopify Plus, this is worth a look before your competitors get there.

Checkout extensibility is standardising integration. Providers rebuilding on Shopify's native extensibility framework rather than maintaining bespoke scripts means fewer theme conflicts and less developer time spent on maintenance. When you compare two providers, ask which one has completed that migration.

Questions Store Owners Ask Us Before They Commit

Do I need a free trial to evaluate a provider? No, and none of the major BNPL apps offer one in the usual sense, because the app itself is free to install and the cost only starts when a transaction settles. That is genuinely useful: you can install, configure and see real results without committing spend. What you cannot trial is the commercial rate, which is fixed at onboarding.

Which factors actually decide it? In order: your gateway (Shopify Payments or not), your order value distribution, your customer age profile, and only then the fee. Everything else is noise. If you want one number to look at, look at the share of your orders that fall inside each provider's eligible range, because a provider that cannot serve half your basket sizes is not a real option however good its brand is.

What does the customer experience look like day to day? A customer picks the option at checkout, completes a short approval, and from then on manages the balance and repayment schedule in the provider's own app. They can usually reschedule a payment once. They see their instalment plans, upcoming due dates and payment history there, not on your store, which is worth knowing when a customer emails you asking where their next payment went. Point them at the provider's app and its resources rather than trying to answer from your admin.

Will it work with my theme? Almost certainly, with some customization. The checkout side is standardised and reliable. The on-site messaging side is where the friction is, and heavily customised themes sometimes need a developer for an hour to place the block correctly and stop it clashing with a price logo or badge row you already have. Budget for that hour rather than being surprised by it.

How do I know it is working? Look at three results eight weeks after launch: total order volume, average order value, and the share of eligible orders using instalments. If total orders moved, the fee is buying incremental revenue. If only the payment mix moved, you have shifted card payments to a more expensive rail and the optimization work is to reduce the number of providers rather than add more. That is the ease-of-measurement advantage BNPL has over most conversion levers, and it is worth using.

One spelling note, because it causes confusion. Shopify names the product Shop Pay Installments with the American installment spelling, and American articles about loan products, loans and instalment plans use it throughout. UK copy on your own store should use instalment. The Shopify feature keeps its official name either way, and providers in North America may present slightly different terms than the same brand offers here.

Why We'd Start With Two Providers, Not Five

The most common thing we fix on a Shopify Plus checkout is not a missing BNPL provider. It is four of them.

We picked up a fashion client last year who had accumulated Klarna, Clearpay, PayPal Pay in 3 and a fourth provider a previous agency had added for a campaign and never removed. Four instalment logos in the payment selector, three different sets of on-site messaging fighting for space under the price, and a product page that took noticeably longer to render because each provider was loading its own script. Their BNPL adoption rate was not four times higher than a single-provider store. It was slightly lower, and their mobile page speed was materially worse.

We took it down to two: Shop Pay Installments as the default because it stays inside the Shopify checkout, and Klarna alongside it because their customers specifically look for the Klarna badge. Adoption went up. Page weight went down. The finance team stopped reconciling four settlement schedules.

So here is our position, stated plainly. If you are on Shopify Payments, enable Shop Pay Installments first and treat it as your default. It costs no additional app fee, it does not redirect the customer away from your checkout, and the lending sits with an FCA-authorised firm, which since July 2026 is a real advantage rather than a footnote. Then add exactly one brand-recognition provider chosen by who your customers are, Klarna for fashion and lifestyle, Clearpay if you skew young, PayPal Pay in 3 if your audience is older and card-shy. Stop there.

The exception is order value. If you sell furniture, high-end electronics or anything routinely over £1,500, a pay-in-four product does not solve your customer's problem and you need genuine point-of-sale finance from DivideBuy or Affirm sitting behind the instalment option. That is a third provider with a job to do, which is different from a third provider you forgot to switch off.

The thing we would push back on hardest is the instinct to chase the lowest merchant fee. We have never seen a store where the difference between a 4% and a 5% BNPL rate mattered more than where the messaging sat on the product page. Fix placement first, negotiate rates second.