BNPL (buy now, pay later)
Point-of-sale financing that splits a purchase into installments — commonly four payments over six weeks with no interest if paid on time.
Buy now, pay later — the "pay in 4" button at checkout — splits a purchase into installments. The most common structure is four equal payments every two weeks, with no interest if each installment is paid on time. Longer-term BNPL plans exist as well, some interest-free, some charging interest similar to a card.
The math on a single interest-free plan is honest: four payments of $25 for a $100 purchase equals $100. Nothing is hidden in the price. What the format changes is perception — a $25 first installment does not weigh what $100 weighs, and each new plan is a separate decision at a separate checkout.
The characteristic failure mode is stacking. Multiple plans, each with a different provider, add up to obligations no single statement reflects. Missed installments can mean late fees or paused access, and because the installments autopay, several running at once can walk a checking balance toward an overdraft on a week when other bills also land.
Plumb is financial education, not financial, investment, tax, or legal advice.