Discount Calculator

See exactly what a sale price costs after discount and tax.

Your inputs

Calculation details

All calculations run locally in your browser. No data is stored.

You save$30.00
Sale price before tax$90.00
Sales tax$0.00

Sales tax, if entered, is applied after the discount.

How this calculator works

The discount is subtracted from the original price first. If you enter a tax rate, tax is then calculated on the discounted price.

Change any input to update the estimate instantly. Your entries never leave your device.

Frequently asked questions

Is tax calculated before or after the discount?

This calculator applies tax after the discount, which is common for retailer-funded discounts. Local rules can differ.

Can I leave sales tax at zero?

Yes. Use zero when you only need the discounted price.