Discount + Tax Calculator
Apply a discount and tax in one step.
Discount then tax, correctly
Order matters at the register: the discount comes off first, then tax applies to the reduced price. A $100 item at 20% off then 8% tax is $86.40, not $88.
It is useful for pricing at the register or building a quote, where applying a promo code and then sales tax in the wrong order produces a total that is off by a few percent.
Local rules vary
Some regions tax the pre-discount price, so confirm your local rule. The math runs entirely in your browser. The prices you enter are never uploaded.
Frequently Asked Questions
How does this discount + tax calculator work?
It uses the numbers you enter and applies the visible formula or planning rule in your browser.
Is this financial advice?
No. This is an educational estimate for planning. Check important decisions with a qualified financial professional.
Are my numbers uploaded?
No. The calculation runs locally in your browser and nothing is stored by this page.
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