Discount Calculator
Use the Discount Calculator to stack percent discounts, fixed coupons, quantity, and optional sales tax with a clear step-by-step breakdown.
Discounts and coupons
Stack percent discounts sequentially, then mix in fixed dollar coupons. Drag-free ordering keeps the calculator simple and mobile friendly.
Result
Final price after discounts is $67.00.
Final price after tax
$67.00
Final price before tax
$67.00
Total savings
$33.00
Tax amount
$0.00
Effective discount
33.00%
Original total
$100.00
How it works
Percent discounts apply sequentially to the running subtotal. Fixed coupons subtract from the running subtotal, and the final before-tax price is floored at $0.
Formula
Sequential discounts = running subtotal after each percent or fixed coupon
Example
Example discount calculation
Use the default values in the calculator form. Press Calculate to see the result summary, supporting values, and formula.
FAQs
Can this calculator stack multiple discounts?
Yes. Percent discounts apply sequentially by default, and fixed dollar coupons subtract from the running subtotal.
Can it include sales tax?
Yes. Enter an optional sales tax rate and choose whether tax applies before or after discounts.
Last updated: 2026-05-24
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