The most consequential shift in consumer payments this year is not a new wallet or a new coin. It is the quiet reclassification of buy now, pay later from a checkout feature into a card-network business. The signals point to a clear outcome: by the close of calendar 2026, the reported center of gravity for the leading BNPL firms will have moved from merchant-integrated, discretionary online checkout toward card-led, everyday-spend economics. The pattern suggests Affirm will carry its active cardholder base past roughly 5 million from the 4.4 million it reported for its fiscal third quarter, Klarna will keep extending its “everyday spend” categories in the mold of an established card issuer, and agentic checkout will pull BNPL in as a default tender across more than one major surface. The “pay in 4 button” framing is being replaced, in real time, by something that looks a great deal more like a network.
This is a prediction about positioning and disclosure, not a forecast of a single press release. It is falsifiable on a 90 to 180 day horizon: a reader can check Affirm’s fiscal fourth-quarter results (expected around August 2026) and its following quarter, watch Klarna’s product cadence, and observe whether agentic-checkout BNPL graduates from announcement to live volume. Three independent signals observed in the last few weeks, each verifiable through a primary source, point the same direction.
In short
- The prediction: by the end of calendar 2026, BNPL’s leaders will be operating and reporting as card-style networks for everyday spend, not as single-purpose checkout lenders.
- Signal 1: Affirm’s fiscal Q3 2026 results show card GMV up roughly 146% to about $2.1 billion and active cardholders doubling year over year to 4.4 million, while the company reached GAAP profitability and laid out a path to $100 billion in annual GMV.
- Signal 2: on May 12, 2026, Google wired Affirm and Klarna into AI Mode, the Gemini app, Search and Google Pay, treating BNPL as default infrastructure for agentic commerce under the Universal Commerce Protocol.
- Signal 3: on May 28, Klarna’s chief executive drew nine explicit comparisons to American Express, framing the company as a lifestyle brand for everyday spend across its roughly 120 million users.
- The timeframe and the check: expect confirmation across the next two earnings cycles; the pattern could still break on a credit downturn, tighter regulation, or agentic volume that disappoints.
Why this matters now
For most of its short life, BNPL was understood as a conversion tool. A shopper reached an online checkout, saw a “pay in 4” option, and split a discretionary purchase into instalments. The economics flowed from merchants, who paid for incremental conversion, and the use case clustered in fashion, electronics and other considered buys. That mental model is now out of date.
The reframing matters because it changes who BNPL competes with and how it earns. A checkout lender competes with other checkout lenders for merchant placement. A card network competes with Visa, Mastercard and American Express for a share of everyday wallet, earns on interchange and recurring spend, and builds direct consumer relationships that are far harder for a rival to dislodge. The pattern suggests the leading firms are deliberately crossing that line, and the next two quarters of disclosure are likely to make the shift legible to investors and merchants alike.
The timing is not accidental. Two of the three signals cluster around late May 2026, a period when the sector was simultaneously courting agentic-commerce platforms and recalibrating its investor narrative. When independent moves converge inside a fortnight, the prior precedent points to a coordinated strategic phase rather than coincidence.
Signal 1: Affirm’s card business is outgrowing its checkout business
The clearest tell sits in Affirm’s fiscal third-quarter 2026 disclosures. Per the company’s quarterly materials, total gross merchandise volume rose about 35% to roughly $11.6 billion, but the composition is the story. Direct-to-consumer GMV grew around 48% to about $3.7 billion, driven primarily by the Affirm Card, whose GMV grew about 146% to roughly $2.1 billion. Active cardholders more than doubled year over year to 4.4 million, and the card attach rate climbed to approximately 17%.
Those numbers describe a business pivoting on its axis. Merchant-integrated checkout still anchors the platform, yet the card, a physical and virtual product that a consumer reaches for across many merchants, is compounding far faster. A 146% growth rate against a 35% blended rate means the card mix is rising every quarter almost mechanically. The pattern suggests that within a few quarters the everyday-spend, card-led portion of volume becomes the part of the story that defines the company.
The forward language reinforces the read. Affirm reached GAAP profitability in the quarter and set out a medium-term framework pointing to $100 billion in annual GMV, with a longer-horizon aspiration of 20 million active cardholders and roughly $150 billion in total annual cardholder spend. A firm that frames its future around cardholder spend rather than merchant checkout volume is, in effect, telling the market to value it as a network. For readers who want the source, Affirm’s fiscal Q3 2026 shareholder letter is filed publicly with the SEC on EDGAR.
The falsifiable piece here is concrete. If the card-led shift is real, Affirm’s next two quarters should show active cardholders pushing past 5 million and card GMV growth holding near triple digits or only modestly decelerating. If instead cardholder growth stalls or card GMV growth collapses toward the blended rate, the network thesis weakens. The signal is strong precisely because it is checkable.
Signal 2: BNPL is being wired into agentic checkout as default infrastructure
The second signal came on May 12, 2026, when Google announced that it had integrated both Affirm and Klarna into its AI shopping stack. According to the announcement, the BNPL options surface inside AI Mode, the Gemini app, traditional Google Search and Google Pay checkout, with Affirm’s experience set to roll out “in the coming weeks.” Both integrations were built to comply with the Universal Commerce Protocol, co-developed by Google and Shopify.
The detail that matters is placement. When an AI agent assembles a basket and reaches a payment step, the tenders it can offer become defaults rather than buttons a shopper hunts for. Embedding BNPL at that layer treats instalment credit as standing infrastructure, on a par with cards and wallets, not as a merchant-side add-on. As one Google executive framed it, the priority is that “payment options remain secure and reliable” as AI becomes an active part of how people buy.
The vendor quotes underline the strategic intent. Klarna’s chief commercial officer described flexible payments as “essential infrastructure for how people buy” in conversational environments, while an Affirm senior vice president argued that “agentic commerce may be the moment that makes” transparent, flexible options “impossible to ignore.” That is the language of firms positioning to be a default rail, not a checkout option. Our earlier analysis of how agentic checkout is likely to settle on the card networks explains why the settlement layer underneath these agents tends to consolidate around network economics.
There is a useful caution embedded in the same data. The announcement noted that, across a database of the top 2000 retailers, 273 accepted Affirm and 203 accepted Klarna, a reminder that BNPL acceptance, while broad, is not yet universal. The pattern suggests agentic integration will widen acceptance pressure rather than reflect saturation already reached.
Signal 3: Klarna is openly running the American Express playbook
The third signal is the most explicit. At an investor conference on May 28, 2026, Klarna’s chief executive Sebastian Siemiatkowski reportedly drew nine separate comparisons between Klarna and American Express, describing the company as built around “a lifestyle brand and obsessive customer focus.” He even argued that consumer preference would protect such brands from displacement by shopping agents, noting that few expect American Express to be displaced “because consumer preference endures.”
The strategy attached to the framing is an everyday-spend ladder. Klarna, which reports roughly 120 million users globally, is scaling first through fashion and beauty, citing partnerships with Macy’s, Sephora and Ulta Beauty at typical basket sizes of $100 to $200, and then intends to push into groceries and routine purchases. Its product range now spans pay-in-4 splits, 30-day invoices and longer monthly financing for higher-ticket items, a spread that mirrors a card issuer’s tiered credit menu more than a single instalment product.
Invoking American Express is not a throwaway analogy. Amex is the canonical example of a payments brand that earns through a closed-loop network, a premium consumer relationship and high everyday engagement, rather than through merchant-acquisition deals alone. A BNPL chief executive who reaches for that comparison nine times in one sitting is signposting where the company intends to sit on the value chain. The prior precedent points to deliberate repositioning ahead of the financial disclosure that would validate it.
The investor context adds urgency. Klarna listed on the NYSE in September 2025 and its shares have fallen roughly 60% since the IPO. A company under that kind of share-price pressure has a strong incentive to reframe its category from “discretionary checkout lender,” which the market prices cautiously, to “everyday-spend network,” which the market has historically rewarded with richer multiples.
What the pattern suggests
Read together, the three signals describe a single strategic vector with three faces: product (the card), distribution (agentic checkout) and narrative (the Amex framing). Each on its own could be explained away. The card surge could be a promotional spike, the Google deal a marketing tie-up, the Amex talk an investor-relations flourish. Taken together, inside a few weeks, they are difficult to read as anything other than a coordinated push to become an everyday-spend network.
| Signal | What it shows | Source type | Window | What confirms it |
|---|---|---|---|---|
| Affirm card surge | Card GMV +146%, cardholders 4.4m, GAAP profit, $100bn GMV roadmap | Quarterly results / SEC filing | Fiscal Q3 2026 | Cardholders past 5m, card growth near triple digits next quarters |
| Agentic BNPL integration | Affirm and Klarna native in Google AI Mode, Gemini, Search, Google Pay (UCP) | Platform announcement | May 12, 2026 | Live default tender on a second major surface by year-end |
| Klarna Amex framing | Nine Amex comparisons, 120m users, everyday-spend ladder into groceries | Investor conference remarks | May 28, 2026 | New everyday-spend category beyond fashion and beauty |
The everyday-spend logic also explains why account-to-account rails and wallets matter to this story. As BNPL firms chase routine purchases and recurring engagement, they collide with the same infrastructure that powers account-to-account and pay-by-bank options at retail. The competitive set is widening from “other instalment apps” to “anything a consumer might tap for a coffee or a weekly shop.”
The sequencing also tells you something about timing. Product moves first, because the card has to exist and gain traction before any network claim is credible. Distribution follows, because default placement is only valuable once the product is worth defaulting to. Narrative comes last, because a chief executive can only invoke American Express persuasively once the underlying metrics support the comparison. Affirm supplied the product evidence, Google supplied the distribution, and Klarna supplied the narrative, all inside roughly two weeks. That ordering is what a category looks like when it is crossing a threshold rather than drifting.
It is worth being precise about what the prediction does not claim. It does not claim that merchant-integrated checkout disappears, because that book is large, profitable and still growing. It does not claim that BNPL displaces the card networks outright. It claims something narrower and more checkable: that the marginal growth, the strategic emphasis and the investor framing all migrate toward everyday-spend, card-led economics over the back half of 2026. The center of gravity moves even if the old core remains intact.
There is a precedent worth holding in mind. Several payments firms have made the journey from a narrow product into a broad consumer network, and the markers are consistent: a flagship card, direct consumer engagement, a tiered credit menu and a brand that consumers choose rather than encounter. The leading BNPL names are now hitting those markers in sequence.
| Precedent | Started as | Became | Key lever |
|---|---|---|---|
| American Express | Charge card for travel and expense | Closed-loop everyday-spend network | Premium brand, lounge and rewards ecosystem |
| PayPal | Online checkout button | Two-sided wallet with card and in-store | Consumer balance, debit card, branded checkout |
| Cash App | Peer-to-peer transfer app | Banking and spend hub with card | Direct deposit, card, recurring engagement |
| Affirm / Klarna (in progress) | Instalment checkout lender | Everyday-spend card network (thesis) | Branded card, agentic distribution, tiered credit |
Wider context: the card networks are not standing still
The reframing is happening on contested ground. Visa, Mastercard and American Express are themselves moving into agentic commerce, instalment features and tokenized credentials, which means BNPL firms are reaching for “network” status exactly as the incumbents extend toward flexible payments. The competitive lines that once separated “card” from “BNPL” are blurring from both sides.
Consolidation is the natural consequence of that blur. When a category reprices itself from lender to network, scale and funding costs become decisive, and weaker players get absorbed. We have argued that European payments consolidation is likely to intensify, and the everyday-spend land grab is one of the forces behind it. A BNPL firm that cannot fund a card programme or win agentic placement is a more obvious acquisition target than it was as a pure checkout button.
Distribution gatekeepers add another layer. The fact that Google’s integration runs on the Universal Commerce Protocol, co-developed with Shopify, signals that the agentic plumbing is being standardized by a small number of large platforms. BNPL firms that secure early default placement on those rails gain a distribution moat; those that arrive late inherit whatever slots remain. The pattern suggests the next 12 months will reward the firms that treated agentic checkout as a strategic priority in early 2026.
The data relationship cuts the other way too. An everyday-spend network sees far more of a consumer’s life than a checkout lender does, because routine purchases recur and discretionary ones do not. That richer signal improves underwriting, sharpens marketing and deepens the consumer relationship, which is exactly the flywheel that makes incumbent card networks durable. The pattern suggests the BNPL leaders understand that the prize is the data and the engagement, not just the incremental loan.
Macro conditions frame the whole move. Everyday-spend BNPL leans on routine purchases, which are more resilient than discretionary ones in a soft consumer environment, so the pivot is partly a hedge. It also raises the stakes on credit quality, because lending against groceries and recurring bills behaves differently from lending against a one-off fashion basket.
Implications for retailers, brands, platforms and investors
For retailers, the shift changes the negotiation. If BNPL becomes a consumer-chosen network rather than a merchant-placed button, the leverage tilts toward the BNPL brand, much as it does with a major card scheme. Merchants will want to watch acceptance economics closely, because everyday-spend ambitions usually arrive with everyday-spend fee structures. The operational fine print also matters; our guide to BNPL chargebacks and what merchants are liable for becomes more relevant as volumes broaden into routine categories.
For brands, the everyday-spend ladder is an opportunity to reach engaged, repeat consumers, particularly the demographics BNPL skews toward. Klarna’s emphasis on a user base that leans more female than the typical fintech profile is a targeting signal that beauty, apparel and grocery brands can act on.
For platforms, the contest is about who owns the agentic checkout default. Marketplaces and commerce platforms that control the payment step gain a powerful position; those that outsource it cede influence to whoever wins the tender slot. The Universal Commerce Protocol alignment between Google and Shopify shows the platform layer organizing early.
For platforms, there is a second-order effect worth naming. Owning the default tender is not only a fee opportunity; it is a source of behavioral data and a lever over which brands and lenders get surfaced to shoppers. A platform that controls agentic checkout can shape demand in ways that echo how app stores and search engines already shape discovery. That is why the early standardization around a shared protocol matters more than any single integration announcement.
For investors, the re-rating thesis is the prize and the risk. If the market accepts BNPL leaders as everyday-spend networks, the multiples can expand toward card-network comparables. If credit losses or regulation intervene, the same firms get repriced as lenders, which is the cautious end of the range. Klarna’s roughly 60% post-IPO decline shows the market has not yet committed to the network framing.
| Scenario | What happens by year-end 2026 | Tell to watch | Rough likelihood |
|---|---|---|---|
| Base case | Card and everyday-spend metrics keep compounding; network framing takes hold in disclosure | Affirm cardholders past 5m; new Klarna spend category | Most likely |
| Bull case | Agentic placement drives a step-change in volume; re-rating toward network multiples begins | BNPL default on a second major agentic surface with real volume | Plausible |
| Bear case | Credit losses or regulation stall the pivot; market re-prices firms as lenders | Rising delinquencies; new BNPL affordability or reporting rules | Cannot be dismissed |
Caveats: what could go wrong
The strongest counter-signal is credit. Everyday-spend lending extends instalment credit into routine, lower-margin purchases, and if the consumer weakens, delinquencies on that book can rise faster than on discretionary baskets. A meaningful uptick in loss rates would force the leaders back toward a lender narrative regardless of how often they invoke American Express.
Regulation is the second counter-signal. Supervisors on both sides of the Atlantic are tightening BNPL oversight, from affordability checks to credit reporting. The direction is visible in moves such as the fresh UK affordability rules facing BNPL providers, and a card-network posture invites the kind of prudential scrutiny that card issuers already face. Becoming more like a bank means being regulated more like one.
The third caveat is that agentic commerce could underdeliver. The May integrations are announcements and early rollouts, not proven volume. If shoppers do not adopt agent-led checkout at scale in 2026, the “default infrastructure” signal will have run ahead of the behavior, and BNPL’s network claim would rest on two legs rather than three.
There is also an economic squeeze to respect. Funding costs, interchange dynamics and the expense of running a card and rewards programme can erode the very margins that make the network model attractive. A firm can win the narrative and still struggle to earn network-grade returns, which is one reading of Klarna’s depressed share price. The honest version of this prediction holds the direction with confidence while leaving the magnitude open.
Frequently asked questions
What exactly is the prediction?
That by the end of calendar 2026, the leading BNPL firms will operate and report as card-style networks for everyday spend rather than as single-purpose checkout lenders. The clearest checkable markers are Affirm’s cardholder growth and Klarna’s expansion into new everyday-spend categories.
How would I know if the prediction is wrong?
If Affirm’s active cardholders stall well below 5 million and card GMV growth collapses toward the blended rate over the next two quarters, or if Klarna retreats from its everyday-spend and Amex framing, the thesis fails. A credit shock or a heavy new regulatory regime would also count as a miss on the network framing.
Why call it a card network rather than just a lender?
Because the signals center on consumer-chosen cards, direct engagement, tiered credit menus and default placement in checkout, which are the defining features of a network rather than a merchant-side lending product. The firms themselves are using network language, most explicitly Klarna’s American Express comparison.
Is this just about Affirm and Klarna?
They are the clearest cases because their disclosures and statements are public and recent, but the dynamic applies across the category. Smaller BNPL providers face the same fork: build toward everyday-spend networks or risk being repriced, or acquired, as narrow lenders.
Does agentic commerce really change BNPL’s position?
It changes the distribution layer. When an AI agent reaches a payment step, the tenders it can offer become defaults, so being embedded at that layer turns BNPL into standing infrastructure rather than a button a shopper must find. The open question is how quickly consumers adopt agent-led checkout at scale.
What does this mean for merchants right now?
Watch acceptance economics and dispute liability, because everyday-spend ambitions tend to bring everyday-spend fee structures and broader exposure to chargebacks. Merchants that treat BNPL as a strategic tender, not a bolt-on, will negotiate from a stronger position as the category consolidates.
Could the established card networks simply win instead?
That is a live possibility and a genuine counter-argument. Visa, Mastercard and American Express are adding instalment features and agentic capabilities, so BNPL firms are reaching for network status as the incumbents extend toward flexible credit, and the outcome may be convergence rather than a clean BNPL victory.
What is the single most important thing to watch?
Affirm’s next two earnings reports. Cardholder count, card GMV growth and the mix of card versus merchant-integrated volume will show, in hard numbers, whether the everyday-spend network is becoming the main story or remaining a fast-growing side business.
How confident should I be in this call?
Confident on direction, cautious on magnitude. Three independent, recent and verifiable signals point the same way, which is a strong setup, but credit, regulation and uncertain agentic adoption mean the pace and scale of the shift remain open questions.