Discount + Tax Calculator
Calculate the final price of an item after applying both a percentage discount and sales tax.
How this calculator works
- Enter the original price and the discount percentage.
- Enter your local sales tax rate.
- The calculator applies the discount first, then calculates tax on the discounted price, and totals the final amount.
Most receipts apply a discount first, then charge sales tax on the reduced price — not on the original price. This calculator follows that standard order (discount, then tax) and shows every step so you can see exactly where each dollar goes.
Example
A $80 item at 25% off, then 7% tax: discount = $20, price after discount = $60. Tax = $60 × 0.07 = $4.20. Final total = $64.20.
Limitations
Some jurisdictions or specific promotions tax the pre-discount price instead — check your receipt if the numbers don't match exactly.
Frequently asked questions
Is tax calculated before or after the discount?
In most places, tax is calculated on the discounted price, which is what this calculator does by default. A few specific promotions work differently — check your receipt if you need to match it exactly.
Why is my total different from a receipt calculator that applies tax first?
Applying tax before vs. after a discount can produce slightly different totals. This tool uses the more common order: discount first, then tax on the reduced price.
Can I use this for multiple discounts plus tax?
Use the Discount Calculator for stacked discounts to get the discounted price, then enter that price into the Sales Tax Calculator.
Does this work for any currency?
Yes — the math is currency-agnostic; just enter your numbers in whatever currency you're using.