Financial

Discount Calculator

Work out sale price, savings, and final checkout total.

Inputs

Adjust the assumptions to match your scenario. Results update instantly.

List priceOriginal price before any discount or sale promotion.Discount ratePercentage discount taken off the original list price.Sales taxTax rate applied after the discount is taken.

Results

Primary outputs and comparison insights are built from the current inputs.

Savings

$36.00

Amount saved from the original price before tax.

Discounted price

$144.00

Price after discount but before sales tax is added.

Checkout total

$155.52

Final amount paid after discount and sales tax.

How this calculator works

The Discount Calculator helps you check a sale price, confirm your savings, and estimate the final checkout total after tax on retail purchases. Enter list price, discount rate, and sales tax to estimate savings, discounted price, and checkout total. The calculator updates instantly and adds a comparison table plus chart so you can test the sensitivity of the result before you use it in a decision.

Quick guide

Jump straight to the section you need, then return to the calculator.

Inputs Outputs Assumptions Tips Formulas Examples Reference table Visual breakdown References

Inputs

Original price before any discount or sale promotion.
Percentage discount taken off the original list price.
Tax rate applied after the discount is taken.

Outputs

Amount saved from the original price before tax.
Price after discount but before sales tax is added.
Final amount paid after discount and sales tax.

Assumptions

The discount is applied before sales tax.
Tax is modeled as a flat percentage on the discounted price.

Tips

Use the checkout total, not only the headline discount, when comparing offers.
If a coupon stacks with another discount, calculate each step separately.

Formula guide

Use these formulas to audit the output or explain it to someone else.

2 formulas

Savings = List Price × Discount Rate

Checkout Total = (List Price - Savings) × (1 + Tax Rate)

Usage examples

Review a ready-made scenario, copy it, then tweak inputs to match your case.

Example

3 inputs3 outputs

Sale item with tax

Inputs

Example input List price: $240.00
Example input Discount rate: 25%
Example input Sales tax: 8.5%

Outputs

Example result Savings: $60.00
Example result Discounted price: $180.00
Example result Checkout total: $195.30

The effective savings can look smaller once tax is added back, so checkout total is the number that matters most.

Checkout total by discount rate

5 of 5 rows

Discount rate	Discounted price	Checkout total
10%	$162.00	$174.96
15%	$153.00	$165.24
20%	$144.00	$155.52
30%	$126.00	$136.08
40%	$108.00	$116.64

Compare discount levels quickly, but keep tax treatment consistent when you use the result.

Sale price comparison

Highest: 10% ($174.96)Lowest: 40% ($116.64)

Sort

Discount rateCheckout total

Focus point

10%

$174.96

Position

#1 of 5

Original order

Share of total

23.38%

Total: $748.44

PositiveNegative

Compare discount levels quickly, but keep tax treatment consistent when you use the result.

References

Retail pricing and markdown arithmetic
Sales tax calculation basics for consumer purchases

FAQ

Common questions

What does the Discount Calculator do?

What inputs do I need?

Typical inputs include Original price before any discount or sale promotion., Percentage discount taken off the original list price., Tax rate applied after the discount is taken..

How are the results calculated?

We follow the formulas and assumptions outlined in the "How this calculator works" section. You will see outputs like Amount saved from the original price before tax., Price after discount but before sales tax is added., Final amount paid after discount and sales tax..