Percent Off Calculator · Practical guide
Percent Off Calculator With Sales Tax
The sticker price after a discount is not what you pay — sales tax is added on the reduced price, and this shows both.
At a glance
Discount First, Then Tax
In most US states, sales tax is charged on the price you actually pay — after the discount, not before. So the order matters: apply the percent off first, then apply your local tax rate to the reduced amount. Take an $80 pair of shoes at 25% off with 8% sales tax: the discounted price is $80 × 0.75 = $60, the tax is $60 × 0.08 = $4.80, and your out-the-door total is $64.80.
Had the tax been charged on the full $80, it would have been $6.40 — so discount-first ordering saves you $1.60 of tax on top of the $20 discount.
Interactive tool
Percent Off Calculator
Enter your own values, then compare the result with the examples below.
Discount Breakdown
Tax Totals on a $100 Item at 20% Off
The discounted price is $80. Here is the final total at common sales tax rates:
| Tax Rate | Tax Amount | Final Total |
|---|---|---|
| 5% | $4.00 | $84.00 |
| 6% | $4.80 | $84.80 |
| 7% | $5.60 | $85.60 |
| 8% | $6.40 | $86.40 |
| 8.25% | $6.60 | $86.60 |
| 10% | $8.00 | $88.00 |
Stacked Discounts Plus Tax
Clearance events often stack a second discount, and tax still comes last. A $100 item at 20% off plus an extra 10% off falls to $72 (an effective 28% discount, not 30%). With 8% tax, the total is $72 × 1.08 = $77.76. Enter both discount percentages and your tax rate above to get the exact breakdown, including total savings and effective savings percentage.
Frequently Asked Questions
Is sales tax calculated before or after a discount?
After, in most states. Tax applies to the discounted price you actually pay, so the discount shrinks your tax bill too.
Do coupons reduce sales tax?
Store discounts and store coupons usually do. Manufacturer coupons are taxed differently in some states, so the taxable amount can vary by state law.
Which states have no sales tax?
Alaska, Delaware, Montana, New Hampshire, and Oregon have no statewide sales tax, so the discounted price is your final total there.
How do I find my exact local tax rate?
Your total rate combines state, county, and city taxes. Check a recent receipt or your state department of revenue website, then enter that combined rate.