Buy Now Pay Later Calculator
Break a buy now, pay later purchase into installments and see the total paid and the share of each paycheck.
Free · No sign-up · Your inputs stay in your browser
Your numbers
Count every installment
Your projection
$150.00 per installment
Total paid
$600.00
Share of one paycheck
7.9%
Final payment in
8 weeks
Late fees vary by provider and state. The estimate uses $8 per missed payment as a placeholder; check the plan's terms. The CFPB treats most pay-in-four products as credit, with dispute rights like a credit card.
About this tool
Method, assumptions, practical next steps, and limits.
Easy to start, easy to stack
Pay-in-four plans usually charge no interest if every payment is on time. The risk is several plans running at once, each small, together taking a large share of a paycheck.
How the calculation works
With 0% APR, installment = price ÷ number of installments. With an APR, the installments are amortized like a short loan. Late fees are added per missed payment.
A $600 purchase in four installments is four payments of $150 over six weeks. On a $1,900 paycheck, each installment is 7.9% of that paycheck.
What the CFPB says
The CFPB’s research found that many buy now, pay later users hold several loans at once. Check the provider’s late fee and whether it reports to credit bureaus, and keep a list of every plan and its due dates.
