Add active Afterpay, Klarna, or Affirm plans to see your weekly total and when payments overlap.
Spot the weekly payment pressure before purchases stack up.
Peak Week
30.00
Average active week $30.00 over 4 payment weeks
Highest weekly total
Compare the peak week to your weekly take-home pay before adding another BNPL plan.
1 BNPL purchase totaling $120.00 create overlapping payment weeks— your heaviest week pulls $30.00 from the same paycheck.
Payment Timeline
Enter each buy-now-pay-later plan's price, start date, and payment schedule. Pay-in-4 commonly means four payments two weeks apart in this tool; the other choices use 3, 6, or 12 monthly payments. Include every open plan to see where due dates overlap.
The calculator builds a payment schedule for each entered plan and adds payments that land in the same week. It identifies the busiest week and averages payments across weeks that have at least one scheduled payment.
The peak week shows the largest combined payment coming due, which may be harder to cover than any single plan payment. Check each provider's agreement for actual due dates, interest, and fees; this preview does not predict credit reporting or compare BNPL with a credit card.
The schedule assumes the selected installment pattern begins on the entered start date. Providers can set different due dates, fees, interest, and payment timing.
Sources: CFPB: Buy Now, Pay Later payment schedulesCFPB: BNPL fees and missed payments