Compare Buy Now Pay Later (BNPL), credit card payments, and saving to buy. Analyze true costs with NPV, fees, interest rates, and timing to make the best financial decision for your purchases.

Global Settings

$
% APY

BNPL (Buy Now Pay Later)

Upfront fee
%
$
$
%

Credit Card

%

Save-to-Buy

$
%
%

BNPL — Results

Expected total paid:$1,001.40
Months to finish:3
NPV (using global rate):-$995.91

Credit Card — Results

Total paid:$1,000.00
Months to finish:1
NPV (using global rate):-$996.34

Save-to-Buy — Results

Months to target (with inflation):5
Months to target (no inflation):4
NPV (using global rate):-$993.99

Verdict (why this option wins)

Save-to-Buy has the lowest modeled discounted cash cost. This is a cash-flow comparison only: BNPL and card provide the item now, while Save-to-Buy delays possession and that waiting cost is not valued. It avoids interest/fees and your cash can earn some interest while you wait. Tradeoff: you wait about 5 month(s) to buy and the model does not assign a dollar value to delayed use of the item. Card may win if you always pay in full (grace period). BNPL may win if fees are truly $0 and you never pay late.

Higher NPV means a lower discounted cash cost. The result does not value immediate use, rewards, credit-score effects, or liquidity needs.

Risk & Protections — Key Notes

  • Credit card grace period: Many cards don't charge interest on purchases if you pay your full balance by the due date; issuer rules vary.
  • Disputes/chargebacks (credit cards): You may have dispute and chargeback rights—check your cardholder agreement.
  • BNPL refunds/disputes: Providers have processes for returns/cancellations and dispute investigation; review provider terms.
  • Late fees & stacking risk: Multiple BNPL plans and late fees can raise effective costs—use fee and probability inputs to model.
This tool simplifies some issuer/merchant rules. Always check your cardholder agreement, BNPL terms, and local laws.