Summary
Klarna is reportedly building a "closed-loop funding" capability that would let consumers fund purchases directly from Klarna-held deposit accounts, cutting Visa, Mastercard, and Stripe out of the transaction flow. If real, this would transform Klarna from a BNPL provider into a consumer bank with a proprietary payment rail, fundamentally changing the economics of the business. The initiative is reportedly being staffed since Q4 2025 and has become a central theme in pre-IPO investor conversations.
Key Points
- What closed-loop funding means: A consumer deposits money into a Klarna-held account (seeded by direct deposit or Klarna's savings product). When they make a purchase, Klarna debits the deposit account directly via ACH rather than routing through Visa/Mastercard. Klarna avoids interchange and network fees on both the consumer payment and the merchant settlement.
- Economic impact: BNPL providers currently pay interchange fees on card-funded repayments and network fees on merchant settlement. A closed-loop rail eliminates both. The margin improvement could be 100-200 basis points on each transaction — transformative for a low-margin business.
- Threat to Stripe: Stripe processes a significant share of Klarna-enabled merchant transactions on Shopify stores. If Klarna routes transactions off card networks, Stripe loses interchange-adjacent revenue. Stripe has reportedly convened internal strategy sessions.
- Threat to Visa/Mastercard: Klarna's closed-loop rail would remove transaction volume from card networks. If other BNPL providers (Afterpay/Block) follow suit, the cumulative volume loss could be significant.
- Block's parallel strategy: Sources suggest Block is exploring a "BNPL-plus-Cash App" bundled checkout that would similarly reduce card network reliance. Cash App Pay as checkout credential + Afterpay as installment option, all off Visa/Mastercard rails.
- IPO timing: Klarna's US IPO creates pressure to demonstrate margin expansion. A proprietary funding rail is a compelling story for institutional investors. The "deposit-funded checkout" phrase reportedly appeared in pre-IPO briefing materials.
- Regulatory questions: ACH-funded BNPL carries different chargeback and fraud-liability profiles than card-network transactions. Klarna would need to manage these risks without the card network's fraud protection infrastructure. Deposit-taking would require banking licenses or partnerships.
- Merchant implications: Lower processing fees initially, but potential repricing once adoption locks in. Fraud liability shifts from card networks to Klarna. Shopify compatibility questions if closed-loop requires separate checkout path.