Use the Discount Calculator in three steps
Enter the original price
Use the regular price before discounts or coupons.
Add the percentage
Enter the discount and an optional tax rate.
Check the final cost
Compare savings, sale price, and the total after tax.
Discount comes before tax
The calculator first subtracts the discount from the original price. When tax is entered, it is then applied to that discounted subtotal.
Useful for comparing promotions
A bigger percentage is not always the better deal when starting prices differ. Calculate each final price instead of comparing discount labels alone.
Discount Calculator FAQ
How is a 20% discount calculated?＋
The original price is multiplied by 0.20 to find the savings, then those savings are subtracted from the price.
Is tax applied before or after the discount?＋
This calculator applies tax after the discount, which is common for ordinary retail discounts but may not match every local rule.
Can I calculate a decimal discount such as 12.5%?＋
Yes. The percentage field accepts decimal values.
Does the tool include shipping?＋
No. Add shipping separately because it may have different discount and tax treatment.
Can the calculator combine two coupons?＋
Not directly. Apply the first discount, then use its sale price as the original price for the second calculation.
Does this look up local sales tax?＋
No. Enter the combined rate that applies to your purchase.