For most Shopify stores on Shopify Payments in the US, Canada or the UK, start with Shop Pay Installments alone. Add PayPal Pay Later only if PayPal already carries a big share of checkouts, and connect Affirm directly only for high ticket orders needing terms Shop Pay Installments lacks.
Last updated: October 2026
Only one of the seven BNPL providers below publishes its pay in 4 merchant rate. The rest show it to you after you apply, or inside your admin, which is exactly why so many stores end up paying for three of them.
Here’s a product page I saw over and over during my years at Shopify. Under the price sits a Shop Pay Installments message. Under that, an Afterpay badge. Under that, another installment strip from a third provider. Three logos promising the same thing, four interest free payments, each one installed by a different person at a different moment for a different reason, and nobody on the team able to say which of them actually moved a sale.
That stack is the payments version of the pattern I watched sink more $500K to $2M brands than any other: premature complexity. Buy now, pay later is real money. The Federal Reserve’s June 2026 overview of BNPL products counts $156.7 billion of US BNPL credit issued in 2025, and notes in a footnote, citing 2022 research, that merchant fees run roughly 5% to 8% against 2% to 3% for cards. So every BNPL order costs you more than a card order would have. The question is never whether to offer BNPL. It’s which one, how many, and whether the extra fee buys you sales you wouldn’t otherwise have made.
Whether you’re doing $10K months or $1M months, the seven providers below are the ones a Shopify merchant can realistically connect in 2026. They’re listed alphabetically, not ranked, because the right one depends on your country, your order size and whether you run Shopify Payments.
These seven BNPL providers were included because each can be connected to a Shopify store in 2026, either natively, inside Shopify Payments, or through an app in the Shopify App Store. They are the six the CFPB studied in its January 2025 BNPL report (Affirm, Afterpay, Klarna, PayPal, Sezzle and Zip) plus Shop Pay Installments, which Shopify runs with Affirm. Each was judged on four criteria: how it connects to Shopify, whether its merchant fee is published, which countries and order sizes it serves, and what it costs your customer if they pay late, because that fee lands on your brand even when you don’t collect it. Facts were checked against provider documentation, the Shopify Help Center and Sezzle’s annual filing in October 2026. Splitit was considered and excluded because it splits a purchase across the shopper’s existing credit card rather than lending, which makes it a different decision. The judgment calls draw on six years as a Senior Merchant Success Manager at Shopify, where I watched payment stacks get built and rarely pruned.
The grid below compares each BNPL provider’s published merchant fee, best fit and main disqualifier for a Shopify store, with fees as of October 2026.
Affirm is a US lender that offers pay in 4 and longer monthly installment loans, connected to Shopify through its own Affirm Payments app, and it is also the company that services Shop Pay Installments behind the scenes.
That second fact is the one most merchants miss. If you already run Shop Pay Installments, Affirm is already collecting your customers’ installments, so installing the Affirm app as well usually means paying for the same lender twice under two brand names. Connecting Affirm directly through the Affirm Payments app for Shopify makes sense in narrower situations: your store can’t use Shopify Payments, or you sell high ticket items where Affirm’s longer terms matter. Affirm’s Shopify integration lets a store pick one region, the US, Canada or the UK.
Affirm doesn’t publish its merchant rate; you get it during onboarding, so treat any number you’ve seen quoted elsewhere as a starting point for negotiation, as of October 2026.
Affirm’s standout strength is term length. Shopify’s September 2026 comparison of BNPL providers, using terms checked in July 2026, lists Affirm monthly plans from three to 60 months against up to 24 months for Shop Pay Installments, and no late fees on Affirm loans. For a $4,000 sofa or a $2,500 e-bike, a 36 month option can be the difference between a sale and a saved cart.
The limitations are real. Many longer Affirm plans carry interest, up to 36% APR in that same comparison, so the customer pays for that flexibility. And since April 2025 Affirm reports all its loans, including pay in 4, to Experian, as Experian announced in March 2025, which some shoppers will notice.
Choose Affirm directly if you sell orders above roughly $1,000, need terms longer than 24 months, or can’t run Shopify Payments. Skip Affirm if you already have Shop Pay Installments switched on, because Affirm is already doing that work for you.
Afterpay, now branded Cash App Afterpay and known as Clearpay in the UK, is an app led pay in 4 provider that connects to Shopify through its own Afterpay US app rather than through Shopify Payments.
Afterpay’s pull is its shopper app. People browse inside it and arrive at your store already intending to pay that way, which is why it has a loyal following in fashion and beauty. On Shopify, the Afterpay US app setup guide requires that your store ship to the United States and accept US dollars.
Afterpay doesn’t publish a rate for Shopify merchants as of October 2026. The closest public reference point is Square’s Afterpay pricing for its own sellers, 6% plus 30 cents per online transaction, which is a useful benchmark to bring into the conversation but not your rate.
The strengths are distribution and simplicity: Afterpay’s pay in 4 spreads four payments over about six weeks, and shoppers who already hold an Afterpay account check out with very little friction. Shopify’s comparison also lists a Pay Monthly option for some larger US purchases.
The limitations sit with the customer. Shopify’s July 2026 terms check lists US Afterpay late fees of up to $8 per missed installment, capped at 25% of the order, and when a customer gets hit with one, they rarely blame Afterpay. Afterpay also adds a separate app and a separate payout to reconcile.
Choose Afterpay if your buyers are already Afterpay app users and you can’t offer Shop Pay Installments, or your own payment report shows shoppers asking for it by name. Skip Afterpay if you already run Shop Pay Installments and have no evidence your customers want a second pay in 4 brand.
Klarna is a global BNPL network that, as of October 2026, runs as a payment method inside Shopify Payments for stores in Europe, and in Australia and New Zealand according to Klarna, while US stores reach it through an enterprise app.
This is the provider with the biggest gap between reputation and access. Shopify’s Klarna in Shopify Payments help page describes it as a local payment method for certain European countries, switched on like any other method with no separate app. Klarna’s own Shopify prerequisites page adds Australia and New Zealand to that list and says US support is expected in 2026, and until then the Klarna Payments for Enterprise app on the Shopify App Store is built for managed merchants, not small and mid-sized stores.
Klarna doesn’t publish a single merchant rate as of October 2026. Shopify’s own explainer on Klarna cites third party reports of 3.29% to 5.99% plus 30 cents per transaction, which is a range, not a quote.
Klarna’s strengths are reach and choice. Its payments platform covers 26 countries in Shopify’s comparison, and it offers pay in 4, pay in 30 days and monthly financing, so a European shopper sees a familiar brand at your checkout. For a store selling into Germany or the Netherlands on Shopify Payments, switching it on is a settings change, not a project.
The limitations are availability and fees. A typical US store on Shopify can’t simply turn Klarna on today, and Klarna can charge late fees on pay in 4 in some markets, per Shopify’s comparison.
Choose Klarna if you sell into Europe, Australia or New Zealand on Shopify Payments, where it runs natively inside checkout. Skip Klarna if you’re a small or mid-sized US store, because the only US route today is an enterprise app.
PayPal Pay Later is the installment option built into PayPal checkout, and it is the only provider on this list that publishes its US merchant rate: 4.99% plus 49 cents per transaction as of October 2026.
If PayPal is already one of your payment methods, Pay Later is largely already there. Shoppers who choose PayPal can split eligible purchases into four interest free payments over about six weeks. PayPal’s Pay Later page sets the pay in 4 range at $10 to $2,000 as of October 2026, Shopify’s comparison lists a Pay Monthly option for $49 to $10,000, and PayPal’s page puts its fixed APR at 0% to 35.99%.
The rate is on PayPal’s US merchant fees page, which makes PayPal the easiest provider to model before you commit. On a $120 order, 4.99% plus 49 cents comes to about $6.48.
The standout strength is that PayPal Pay Later rides on an account your customers already trust, and Shopify’s comparison notes no late fees on pay in 4. If 20% or more of your checkouts already go through PayPal, Pay Later reaches those buyers without adding anything new to your product page.
The limitations: the $2,000 ceiling on pay in 4 (as of October 2026) rules it out for high ticket orders, and Pay Monthly interest of up to 35.99% APR is steep for a customer to carry. It also lives inside PayPal, so it does nothing for shoppers who never click the PayPal button.
Choose PayPal Pay Later if a large share of your checkouts already run through PayPal and your orders sit under $2,000. Skip PayPal Pay Later as your only BNPL option if most of your buyers use Shop Pay or cards, because they’ll never see it.
Sezzle is a US and Canadian BNPL provider offering pay in 2, pay in 4 and monthly financing, connected to Shopify through its own integration rather than Shopify Payments.
Sezzle positions itself around shoppers who are building or rebuilding credit. Shopify’s comparison notes that its Sezzle Up program lets customers opt in to credit bureau reporting, and that eligible payments can be rescheduled. Sezzle’s annual filing for 2025 confirms it operates in the United States and Canada.
Sezzle doesn’t publish a merchant rate as of October 2026. Its filing describes merchant fees as a percentage of the order plus a fixed fee per transaction, so ask for both numbers and model them the same way you’d model PayPal’s.
Sezzle’s strengths are flexibility for the shopper: pay in 2 suits smaller orders, and the credit reporting opt-in gives some customers a reason to choose it. It’s also one of the few names here that serves both US and Canadian shoppers through one provider.
The limitations are on the customer side. Shopify’s July 2026 terms check lists service, late, failed payment and rescheduling fees that can apply, and Sezzle’s own published example adds a finance charge to a $300 pay in 4 loan. A customer who feels surprised by a fee tends to remember your store, not the lender.
Choose Sezzle if your customers are younger or credit building shoppers who ask for it, and you can’t use Shop Pay Installments. Skip Sezzle if you want the simplest possible fee story for your customers, because its fee schedule takes the most explaining.
Shop Pay Installments is Shopify’s own BNPL option, built into Shopify checkout and serviced by Affirm, available to eligible stores on Shopify Payments in the US, Canada and the UK, with Australia in early access.
Because it lives inside Shop Pay, there’s no app to install and no separate payout to reconcile. Shopify’s Shop Pay Installments help page lists the requirements (Shopify Payments and Shop Pay both switched on) and the US order range of $35 to $30,000 as of October 2026. Shoppers get interest free biweekly payments on most orders and monthly plans on eligible larger ones.
Shopify doesn’t publish the Shop Pay Installments rate publicly as of October 2026. Its getting paid page explains that installment orders carry a higher transaction fee that includes the normal Shopify Payments processing fee, and you’ll find your exact rate in your admin under Settings, then Payments, then View payment rates in the Shopify Payments section. One more line worth knowing from the Shop Pay Installments FAQ: the transaction fee isn’t returned when you refund an order.
The strengths are the reasons it’s the default for most stores. It needs no new app, the customer sees it in the checkout they already use, and Shopify’s comparison notes no customer late fees. On its Shop Pay Installments page, Shopify says merchants that switched from a third party installments solution saw 28% fewer abandoned carts, and that one in four merchants sees a 50% increase in average order value. Those are Shopify’s own figures, published without methodology, so treat them as the vendor’s claim rather than a benchmark.
The limitations: you must be on Shopify Payments, in one of the supported countries, and the FAQ excludes subscription products and gift cards, which rules it out for a subscription first brand. The non-refundable fee also bites harder in categories with high return rates. Disputes also stay with you. Affirm collects the payments, but you still answer chargebacks, which is why the delivery evidence in our Black Friday chargebacks guide applies to installment orders too.
Choose Shop Pay Installments if you run Shopify Payments in the US, Canada or the UK and want one BNPL option that adds nothing to your app stack. Skip Shop Pay Installments if you can’t use Shopify Payments, or your return rate is high enough that a fee you never get back on refunds outweighs the lift.
Zip is a US BNPL provider offering pay in 2, pay in 4 and pay in 8 plans, connected to Shopify through the Zip US app with a merchant fee negotiated directly with Zip.
Zip’s model leans on its shopper app and virtual card, which lets customers use Zip at many card accepting stores. On Shopify, the Zip US app listing describes the merchant service fee as negotiated with Zip.
Zip doesn’t publish a standard merchant rate as of October 2026, so its price is whatever you agree in that negotiation, which puts smaller stores at a disadvantage.
Zip’s strengths are plan variety and an existing base of app users. A pay in 8 option is unusual, and shoppers who live in the Zip app will look for it.
The limitations are again on the customer side. Shopify’s July 2026 terms check lists Zip origination fees from $0 to $124 depending on the purchase and plan, late fees of up to $7, and a fee for changing a payment date more than once a month. For a short plan, those fees can make Zip more expensive for your customer than a credit card.
Choose Zip if you’re a US store whose customers specifically ask for it and you have the volume to negotiate a fair rate. Skip Zip if nobody has asked for it, because it adds an app, a payout and a fee schedule without a clear reason.
Most Shopify stores need exactly one BNPL provider at checkout, and the right one depends on whether you run Shopify Payments, which countries you sell into, and how large your orders are.
If you’re under about $500K a year and on Shopify Payments in the US, Canada or the UK, switch on Shop Pay Installments and stop there. If PayPal is already one of your payment methods, Pay Later comes along with it, and that’s fine because it adds nothing to your product page. Resist installing anything else until your own data asks for it. If you’re a subscription first brand, Shop Pay Installments won’t cover your subscription products, so this default doesn’t apply to you.
Between $500K and $2M, this is where I watched stacks grow. A second BNPL provider earns its place only with evidence: customers asking for it by name in support tickets, or a meaningful share of your audience already using it. Pull last quarter’s payment method report first. If Shop Pay Installments carries most of your installment orders, a second widget is a cost, not a channel.
If you sell high ticket goods, furniture, e-bikes, equipment, the question changes. Shop Pay Installments covers US orders up to $30,000 with monthly plans as of October 2026, and Affirm direct adds longer terms. There’s also an option that isn’t BNPL at all. On episode 483 of the podcast, Sandesh Kulai, CEO of STOQ, described how furniture brands handle pre-orders: “furniture is one of those categories where expecting a customer to pay $1,000, $2,000, $3,000 upfront is not going to happen.” His answer was a deposit captured at checkout and the balance charged before shipping, which costs card fees rather than BNPL fees. He was clear about one catch: partial payments of this kind need Shopify Payments.
If you sell into Europe, Australia or New Zealand on Shopify Payments, Klarna is the natural fit there because it runs natively. If you can’t use Shopify Payments at all, Shopify’s pricing page notes third party transaction fees on top, from 2% on Basic to 0.2% on Plus, so pick one external BNPL app and keep the stack small.
The trade off to accept honestly: one provider means some shoppers won’t see the brand they prefer. In my experience that loss is smaller than the clutter and fees of three overlapping widgets, but your own payment report is the tiebreaker, not my experience.
For a composite store with three BNPL providers on its product pages, my call would be to keep Shop Pay Installments, keep PayPal, and remove the Afterpay and Sezzle apps, because the break even math shows how hard a second provider has to work to pay for itself.
This is a labelled composite built from the kind of stores I worked with at Shopify, not a real brand, and every number is an illustrative assumption rather than an observation. Picture a US home goods brand doing about $1.2M a year on Shopify Payments, with a $180 average order and a 55% gross margin. PayPal has been on its checkout from day one. Over two years it installed Afterpay, then Sezzle, and later switched on Shop Pay Installments. Its product pages now carry three installment messages, and Afterpay and Sezzle each feed their own payout into the books.
Here’s the test I’d run with them. Assume a BNPL order costs about 6% in fees, inside the Federal Reserve’s 5% to 8% range, and a card order about 2.9% plus 30 cents. On a $180 order, that’s $10.80 against roughly $5.52, so each BNPL order costs about $5.28 more than the same order on a card. For every 100 BNPL orders, that’s $528 of extra fees. At a $99 gross margin per order, the store needs a little under 6 of those 100 orders to be genuinely new, sales that would not have happened at all without BNPL, just to break even. If BNPL mostly moves existing buyers from cards to installments, it’s a cost, not growth.
Now apply that to the stack. Shop Pay Installments sits inside the checkout most of this store’s buyers already use, so it’s the provider most likely to clear the six in 100 bar. Afterpay and Sezzle each have to clear the same bar on their own, with fewer shoppers seeing them, plus the time someone spends reconciling two extra payouts every month. I’d remove both, watch conversion and average order value for 60 days against the same weeks last year, and add one back only if support tickets or the numbers say customers miss it. Before removing Afterpay, I’d also check how much traffic arrives from the Afterpay shopper app, because a payment report won’t show that referral value. You might disagree if your audience lives in the Afterpay app. That’s exactly what the data is for.
Run the 18 month filter and the one thing that survives is the break even test itself. Provider names, fees and country coverage will change. The question of how many BNPL orders are truly incremental won’t.
The best BNPL setup for a Shopify store is usually one provider, chosen on purpose, rather than a row of badges added one sales call at a time, which is why this list is unranked. All seven companies earn a place for some store. Shop Pay Installments fits most stores on Shopify Payments in the US, Canada and the UK. PayPal Pay Later fits stores where PayPal already carries checkout volume. Affirm direct fits high ticket and long term financing. Klarna fits Shopify Payments stores in Europe, Australia and New Zealand. Afterpay, Sezzle and Zip fit audiences that already use their apps and ask for them. Before Black Friday, pull your payment method report, run the six in 100 test on your own margin, and remove any BNPL app that can’t show you its share of genuinely new orders. If you’re still deciding, the stage guidance above is your starting point.
There is no single best BNPL company for every Shopify store, but Shop Pay Installments is the right starting point for most stores on Shopify Payments in the US, Canada and the UK. It runs inside Shopify checkout with no extra app, Affirm services the loans, and Shopify’s comparison lists no customer late fees. PayPal Pay Later is a sensible companion if PayPal already carries a meaningful share of your checkouts. Affirm direct fits high ticket stores that need terms longer than 24 months, and Klarna fits stores selling into Europe, Australia or New Zealand on Shopify Payments. Pick based on your country, order size and payment report rather than brand recognition.
BNPL companies generally charge merchants about 5% to 8% of the order, according to a footnote in the Federal Reserve’s June 2026 overview of BNPL products that cites 2022 research, against roughly 2% to 3% for cards. Only PayPal publishes its US pay in 4 rate, which was 4.99% plus 49 cents per transaction as of October 2026. Shop Pay Installments shows its rate only inside your Shopify admin, and Affirm, Afterpay, Klarna, Sezzle and Zip quote rates during onboarding or negotiate them. Square lists Afterpay at 6% plus 30 cents for its own sellers, which is a useful benchmark but not a Shopify rate. Always ask for both the percentage and any fixed per order fee.
Shop Pay Installments is Shopify’s own BNPL option inside Shopify checkout, while Affirm is the lender that services those loans and also offers its own separate app. If you run Shop Pay Installments, Affirm already collects your customers’ installments, so adding the Affirm app usually duplicates the same lender. Connecting Affirm directly makes sense when you can’t use Shopify Payments, or you need Affirm’s longer monthly terms, which Shopify’s July 2026 terms check lists at up to 60 months against up to 24 months for Shop Pay Installments. Shop Pay Installments needs Shopify Payments and Shop Pay switched on, and its fee is not returned when you refund an order.
No, US stores cannot switch on Klarna inside Shopify Payments as of October 2026, although Klarna says US support is expected in 2026. Today Klarna runs natively in Shopify Payments for stores in certain European countries, Australia and New Zealand, where it appears as a local payment method with no separate app. US stores can reach Klarna only through the Klarna Payments for Enterprise app on the Shopify App Store, which Klarna describes as built for managed merchants rather than small and medium sized businesses. If Klarna matters to your US customers, check Klarna’s Shopify prerequisites page for the US launch before planning around it.
Most Shopify stores should offer one BNPL provider, and add a second only when their own data shows customers asking for it. Every BNPL order costs more than a card order, so each provider has to bring in sales that would not have happened otherwise. As an illustrative example, with a $180 order, a 55% margin and a 6% BNPL fee against 2.9% plus 30 cents on cards, about 6 in every 100 BNPL orders need to be genuinely new just to break even. Pull your payment method report, check which provider carries your installment orders, and remove apps that can’t show their share. Stores selling into several countries may reasonably need one provider per region.
