Use this free Discount & Sales Tax Calculator to estimate sale discounts, savings, optional sales tax, and final purchase prices.
Enter the original price, discount percentage, and optional sales tax to estimate your savings and final price.
How This Discount & Sales Tax Calculator Helps
This calculator helps estimate how much money a discount may save and what the final price may be after optional sales tax. It is useful when shopping online, comparing sale prices, checking coupons, or estimating the checkout total before buying.
You can use it for simple percentage discounts, clearance sales, promotional offers, and shopping estimates where you want to see the sale price, savings amount, tax amount, and final estimated total.
Discount & Sales Tax Example
For example, if an item costs $100 and has a 20% discount, the discount saves $20 and lowers the price to $80 before tax. If sales tax is 7%, the estimated tax would be $5.60 and the final estimated price would be $85.60.
If you do not want to include sales tax, leave the sales tax field blank. The calculator will still show the discount, savings, and sale price before tax.
Common Ways to Use This Calculator
Sale Prices
Estimate how much an item may cost after a percentage discount is applied.
Coupon Savings
Check how much money a coupon or promo code may save before checkout.
Sales Tax Estimates
Add optional sales tax to estimate a more realistic final purchase total.
Shopping Comparisons
Compare different discounts to see which deal may save more money.
How to Read the Results
The results show the discount amount, sale price before tax, optional tax amount, and estimated final price. The final price is based only on the numbers entered.
Actual checkout totals may vary because of shipping, local tax rules, store fees, coupon limits, excluded items, rounding, membership discounts, or other purchase details.
Discount & Sales Tax Calculator FAQs
How do I calculate a discount?
Multiply the original price by the discount percentage divided by 100. Then subtract the discount amount from the original price.
Can I leave sales tax blank?
Yes. Sales tax is optional. If you leave it blank, the calculator estimates the sale price before tax.
Does this calculator include shipping?
No. This calculator does not include shipping, delivery fees, service fees, or other added checkout costs.
Why is my store total different?
Store totals may be different because of local tax rules, shipping, fees, coupon restrictions, excluded items, rounding, or store policies.
Can I use this for online shopping?
Yes. You can use it to estimate online shopping totals, but the final checkout page may include extra costs or different tax rules.
Are the results exact?
Results are estimates only. Final prices may vary depending on taxes, fees, shipping, discounts, and seller rules.