1
Enter original price
Type the list price. Inputs are large and mobile-keypad friendly.
Discount calculator
Enter price and discount — results update as you type. Add optional tax on the sale price.
Applied to the discounted price (before tax subtotal).
Enter a valid original price and discount (0–100%) to see savings and final price.
Pro Tip
Tax here applies to the discounted subtotal (common at checkout). If your jurisdiction taxes the original price instead, treat this as an estimate and confirm locally.
How to Use the Discount Calculator
2
Set discount %
Enter the percent off. Savings and the price-drop bar update live.
3
Add optional tax
Optionally add a tax rate on the sale price to see tax amount and final price.
Understanding Discount Math
Sale price before tax equals original price × (1 − discount ÷ 100). Savings in dollars is original minus that amount. Optional tax is calculated on the discounted amount: final price = sale price × (1 + tax ÷ 100).
Stacking multiple percent discounts applies sequentially (e.g. 20% then 10% off is not 30% off the original). This tool models a single discount plus tax.
Frequently Asked Questions
Additional tax is applied to the price after the discount—the same order most retail checkouts use. Enter 0 or leave tax blank if you only want the discounted price.
This calculator uses one discount percentage. Chained discounts multiply: 20% off then 10% off leaves 72% of the original, not 70%.
20–30% off is a strong retail promotion; 50%+ often signals clearance. Compare to typical prices for that product, not just the sticker discount.