Coupon Savings Calculator

Couponing pays off in ways that go beyond the discount printed on the slip, once you account for sales tax and stretch the savings across a full year. In 2026, as inflation keeps pressure on household budgets, each dollar trimmed at checkout carries more weight, and this tool turns your coupon habits into a concrete dollar figure.

The calculation runs in three steps. First it subtracts the coupon value from the item's original price. Next it applies your local sales tax rate to that post-coupon price rather than the original, since tax is figured after the discount; a statewide average might land near 6.2% across states in 2026, for instance. Finally it annualizes the result by multiplying your single-purchase net savings by how many similar buys you expect in a year.

Accuracy hinges on the rate you plug in, because sales tax swings widely from one state and county to the next. Coupon fine print matters too, as some exclude tax outright or apply only to set quantities. The fastest way to inflate a projection is to overstate how often you'll repeat the purchase, so keep that yearly count grounded.