See what a discount really saves.

Each discount applies to the price left after the previous discount. A 25% discount followed by 10% off is not 35% off. On $100, the first discount leaves $75 and the second removes $7.50, for a final price of $67.50 before tax.

That example produces an effective discount of 32.5%. Sales tax is normally applied after discounts, but rules and taxable amounts can vary by location and item.

Enter the posted price and first discount. Open the optional section when a retailer gives a second discount or when you want to estimate tax at checkout. The calculator applies discounts in the order entered, then applies tax to the discounted price.

Assumptions and limits: this treats each discount as a percentage reduction and does not know store exclusions, minimum purchases, coupons that cannot be combined, item-level rounding, or local taxability rules. Confirm the final total at checkout.

Method reviewed September 29, 2026.