Calculate the sale price, savings and after-tax total for any discount.
Final sale price and how much you save
This free calculator gives you instant, accurate results with no signup required. Use it to make smarter, more informed financial and life decisions.
Always double-check important financial decisions with a qualified professional. This calculator provides estimates for guidance purposes. Results may vary based on your specific circumstances.
Retailers strategically use percentage discounts because consumers consistently respond better to "30% off" than to the equivalent dollar amount off, even when the actual savings are identical — a well-documented quirk in consumer psychology research.
Stacked discounts don't add up the way people assume. "30% off, plus an extra 20% off" isn't a 50% total discount — it's actually about 44%, since the second discount applies to the already-reduced price, not the original price. This mistake costs shoppers accurate comparison shopping.
Sales tax calculated after a discount means the discount reduces your tax burden too, not just the sticker price — a detail many people forget when mentally estimating final cost, leading to underestimating actual savings on tax-inclusive purchases.
Use the calculator above to get the precise final price including tax — useful for accurately comparing deals, especially when discounts are stacked or when comparing a tax-inclusive price against a tax-exclusive advertised price.