Reverse Sales Tax Calculator
Have a total that already includes sales tax? Work out the price before tax and how much of it is tax. Choose a US state or Canadian province, or enter your exact combined local rate.
Built and checked by Saurabh Pandey · page updated
Calculator
Fee breakdown
Enter the total including tax.
How to use the Reverse Sales Tax Calculator
- Choose the United States or Canada.
- Choose "Remove tax" if your amount already includes tax (for example a receipt or a marketplace payout report), or "Add tax" to see a final price.
- Pick the state or province. US state rates do not include city or county taxes; for an exact result choose "Exact combined rate" and enter the full rate for the address.
How it is calculated
Price before tax = total ÷ (1 + rate ÷ 100) Sales tax = total − price before tax Adding tax = price × (1 + rate ÷ 100)
Do not subtract the rate from the total. Taking 8.25% off $108.25 gives $99.32, but the correct price before tax is $108.25 ÷ 1.0825 = $100.
Worked examples
US: a $108.25 receipt at 8.25% combined tax
| Amount before sales tax | $100.00 |
| sales tax at 8.25% | $8.25 |
| Amount including sales tax | $108.25 |
California: $53.63 including the 7.25% state rate
Most California addresses also pay district taxes, so check the local rate.
| Amount before sales tax | $50.00 |
| sales tax at 7.25% | $3.63 |
| Amount including sales tax | $53.63 |
Texas: add the 6.25% state rate to $80
| Amount before sales tax | $80.00 |
| sales tax at 6.25% | $5.00 |
| Amount including sales tax | $85.00 |
Quebec: C$114.98 including GST and QST
Quebec charges 5% GST plus 9.975% QST, 14.975% in total.
| Amount before sales tax | C$100.00 |
| sales tax at 14.975% | C$14.98 |
| Amount including sales tax | C$114.98 |
Ontario: C$56.50 including 13% HST
| Amount before sales tax | C$50.00 |
| sales tax at 13% | C$6.50 |
| Amount including sales tax | C$56.50 |
Rates used by this calculator
| State | State rate | Average with local taxes |
|---|---|---|
| Alabama | 4% | 9.46% |
| Alaska | 0% | 1.82% |
| Arizona | 5.6% | 8.54% |
| Arkansas | 6.5% | 9.48% |
| California | 7.25% | 9.03% |
| Colorado | 2.9% | 7.89% |
| Connecticut | 6.35% | 6.35% |
| Delaware | 0% | 0% |
| District of Columbia | 6% | 6% |
| Florida | 6% | 6.98% |
| Georgia | 4% | 7.56% |
| Hawaii | 4% | 4.5% |
| Idaho | 6% | 6.03% |
| Illinois | 6.25% | 8.98% |
| Indiana | 7% | 7% |
| Iowa | 6% | 6.94% |
| Kansas | 6.5% | 8.71% |
| Kentucky | 6% | 6% |
| Louisiana | 5% | 10.13% |
| Maine | 5.5% | 5.5% |
| Maryland | 6% | 6% |
| Massachusetts | 6.25% | 6.25% |
| Michigan | 6% | 6% |
| Minnesota | 6.875% | 8.14% |
| Mississippi | 7% | 7.06% |
| Missouri | 4.225% | 8.44% |
| Montana | 0% | 0% |
| Nebraska | 5.5% | 6.98% |
| Nevada | 6.85% | 8.24% |
| New Hampshire | 0% | 0% |
| New Jersey | 6.625% | 6.6% |
| New Mexico | 4.875% | 7.68% |
| New York | 4% | 8.54% |
| North Carolina | 4.75% | 7.1% |
| North Dakota | 5% | 7.09% |
| Ohio | 5.75% | 7.29% |
| Oklahoma | 4.5% | 9.06% |
| Oregon | 0% | 0% |
| Pennsylvania | 6% | 6.34% |
| Rhode Island | 7% | 7% |
| South Carolina | 6% | 7.49% |
| South Dakota | 4.2% | 6.11% |
| Tennessee | 7% | 9.61% |
| Texas | 6.25% | 8.2% |
| Utah | 6.1% | 7.42% |
| Vermont | 6% | 6.43% |
| Virginia | 5.3% | 5.77% |
| Washington | 6.5% | 9.57% |
| West Virginia | 6% | 6.6% |
| Wisconsin | 5% | 5.72% |
| Wyoming | 4% | 5.39% |
State rates as of 1 July 2026. Most states also allow city and county taxes; the average combined rate is shown in the table, but the exact rate depends on the delivery address. Use “Other rate” for your exact combined rate.
| Province | Combined rate |
|---|---|
| Ontario | 13% |
| British Columbia | 12% |
| Quebec | 14.975% |
| Alberta / territories | 5% |
| Saskatchewan | 11% |
| Manitoba | 12% |
| Nova Scotia | 14% |
| New Brunswick, Newfoundland & Labrador, PEI | 15% |
Combined GST/HST plus provincial sales tax. Some goods are exempt from PST, so check your product.
Last verified: . Official sources: Tax Foundation: State and Local Sales Tax Rates, Midyear 2026 · Canada Revenue Agency: GST/HST rates · Revenu Québec: QST
Sales tax for online sellers
In the US, marketplaces such as Etsy, eBay and Amazon collect and pay sales tax for you in almost every state that has one, so the tax is not part of your income. On your own website you are responsible for collecting tax in states where you have nexus. In Canada, prices are normally shown before tax and GST/HST (and PST or QST) is added at checkout based on the buyer's province. Read sales tax for online sellers for the basics.
Frequently asked questions
How do I calculate sales tax backwards?
Divide the total by 1 plus the tax rate as a decimal. For a $108.25 total at 8.25%: 108.25 ÷ 1.0825 = $100 before tax, so the tax is $8.25.
Which US states have no sales tax?
Delaware, Montana, New Hampshire and Oregon have no state or local sales tax. Alaska has no state sales tax, but many local areas charge one.
Which state has the highest sales tax?
California has the highest state rate at 7.25%. Including local taxes, Louisiana has the highest average combined rate at about 10.13% in 2026.
Do the state rates include city and county tax?
No. Most states let cities, counties and districts add their own tax. The table on this page shows the average combined rate, but the exact rate depends on the delivery address.
What is the sales tax in Quebec?
5% federal GST plus 9.975% Quebec Sales Tax (QST), 14.975% in total.