BNPL Calculator — What Does Buy Now Pay Later Really Cost?

Calculate the real cost of Buy Now Pay Later services. Our free calculator reveals hidden fees, late charges, and the true APR for Klarna, Afterpay, Affirm, and Zip — so you can make informed financial decisions before you click "Pay Later."

BNPL Provider Comparison

ProviderLate FeeInterestCap
Klarna$5-$100-25.9% APR25% of order
Afterpay$8-$100%25% of order
Affirm$00-36% APRNone
Zip$5-$70%Varies

Features

Frequently Asked Questions

Is Klarna free?

Klarna can be free if you pay on time. Their Pay in 4 option charges no interest for on-time payments. Late payments incur fees of $5-$10, capped at 25% of your order value.

What happens if I miss a BNPL payment?

Missing a payment typically results in late fees of $5-$10, account suspension, and potential credit score impact. Repeated missed payments may be sent to collection agencies.

Is BNPL bad for my credit score?

It can be. Many BNPL providers now report to credit agencies. Late payments can hurt your score, but consistently paying on time can help build credit history.

Should I use BNPL or a credit card?

BNPL is best when you can pay on time and want zero interest. Credit cards are better for payment flexibility, purchase protection, and building credit history. For larger purchases, a 0% credit card is often cheaper.