Is tax applied before or after the discount?

In most US states, tax is calculated on the post-discount price. We do it that way — it matches what you would see at checkout.

How are stacked discounts handled?

For multi-discount stacks (e.g. 20% + 10%), apply them sequentially: 20% off, then 10% off the new total. That is what physical receipts and most e-commerce sites do.

What if my tax is zero?

Leave the tax field blank or set it to 0 and the result is just the discounted subtotal.

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Discount Calculator

Enter original price and discount percent — get the sale price and amount saved. Optionally add tax for the final out-the-door price.

Original price

Discount %

Sales tax %

Final price (with tax)

$81.19

$25.00

You save

$75.00

Subtotal

$6.19

Tax

How to use Discount Calculator

Enter the original sticker price.
Enter the discount percentage shown on the tag.
Optionally add sales tax to see the final out-the-door price.

How to use Discount Calculator

Frequently asked questions

Is tax applied before or after the discount?

How are stacked discounts handled?

What if my tax is zero?