Klarna vs PayPal: Cost and Fees Calculator
Enter your volumes to compare estimated monthly costs and fees for Klarna and PayPal across the selling types both offer, using published US pricing.
Selling online (eCommerce)
Estimates combine processing fees and monthly subscriptions on the plans noted above. One-time hardware, setup, and add-ons are excluded. Rates are published or typical US pricing as of mid-2026 and may have changed.
How the Klarna vs PayPal calculator works, and how the two compare
Klarna is the leading buy-now-pay-later provider, letting shoppers split purchases while you get paid upfront. Klarna's US merchant fees are typically around 5.99% + $0.30 per BNPL transaction (varying by product and agreement) with no monthly fee; you receive the full amount upfront while Klarna takes the installment risk. PayPal is the best-known online payments brand, which also covers in-person sales through PayPal Zettle card readers. PayPal charges 3.49% + $0.49 for standard online PayPal checkout and 2.29% + $0.09 in person via Zettle (reader $79, or $29 for your first), with no monthly fee.
How they are similar: Where they overlap: both Klarna and PayPal cover selling online, which is what this calculator compares. Neither requires a monthly subscription on the plans compared here, so your cost scales purely with sales. In both cases the bill is driven by a percentage of each sale plus any fixed per-transaction fee, which is why your average transaction size changes the effective rate as much as the headline percentage does.
How they differ: Only PayPal offers in-person card readers, so that side of the business is not part of this comparison. Klarna operates as a buy-now-pay-later service that merchants add at checkout for an agreement-based fee, while PayPal operates as flat-rate card processing with published per-transaction fees. Klarna is a checkout option, not a full processor: merchants add it alongside cards to lift conversion and order values, paying a premium rate for the installment service and risk transfer. PayPal brings the trust of its consumer brand and one of the lowest in-person rates via Zettle, but its 3.49% + $0.49 online checkout is among the most expensive standard online rates.
Assumptions used in this calculator
- Klarna is modeled on: BNPL: typically around 5.99% + $0.30 per transaction, agreement dependent.
- PayPal is modeled on: 3.49% + $0.49 for standard PayPal online checkout.
- Rates are published or typical US pricing as of mid-2026 and change often; quote-based providers are modeled at representative rates. Always confirm current pricing with the provider.
- One-time hardware, setup, add-on apps, keyed-in transactions, international cards, and chargeback fees are excluded from the monthly figures.