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Reverse Tax Calculator
This reverse tax calculator works backwards from any tax-included total to show you the original pre-tax price and the exact tax amount paid.
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Enter the total amount including tax that was charged
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Enter a price to see your exact pre-tax and tax amounts.
How to Calculate Sales Tax Backwards?
This reverse tax calculator works backwards from any tax-included total to find the original pre-tax price. Enter your total amount and select your state — the calculator automatically applies the combined state and local sales tax rate and shows you the pre-tax price and exact tax amount paid in one step.
Backwards Sales Tax Rates by State (2026)
| State | State Rate | Avg Local Rate | Combined Rate |
|---|---|---|---|
| Alabama | 4.00% | 5.24% | 9.24% |
| Alaska | 0.00% | 1.76% | 1.76% |
| Arizona | 5.60% | 2.77% | 8.37% |
| Arkansas | 6.50% | 2.93% | 9.43% |
| California | 7.25% | 1.57% | 8.82% |
| Colorado | 2.90% | 4.82% | 7.72% |
| Connecticut | 6.35% | 0.00% | 6.35% |
| Delaware | 0.00% | 0.00% | 0.00% |
| Florida | 6.00% | 1.05% | 7.05% |
| Georgia | 4.00% | 3.35% | 7.35% |
| Hawaii | 4.00% | 0.44% | 4.44% |
| Idaho | 6.00% | 0.03% | 6.03% |
| Illinois | 6.25% | 2.49% | 8.74% |
| Indiana | 7.00% | 0.00% | 7.00% |
| Iowa | 6.00% | 0.94% | 6.94% |
| Kansas | 6.50% | 2.22% | 8.72% |
| Kentucky | 6.00% | 0.00% | 6.00% |
| Louisiana | 4.45% | 5.10% | 9.55% |
| Maine | 5.50% | 0.00% | 5.50% |
| Maryland | 6.00% | 0.00% | 6.00% |
| Massachusetts | 6.25% | 0.00% | 6.25% |
| Michigan | 6.00% | 0.00% | 6.00% |
| Minnesota | 6.875% | 0.58% | 7.46% |
| Mississippi | 7.00% | 0.07% | 7.07% |
| Missouri | 4.225% | 3.99% | 8.21% |
| Montana | 0.00% | 0.00% | 0.00% |
| Nebraska | 5.50% | 1.44% | 6.94% |
| Nevada | 6.85% | 1.38% | 8.23% |
| New Hampshire | 0.00% | 0.00% | 0.00% |
| New Jersey | 6.625% | 0.03% | 6.60% |
| New Mexico | 5.125% | 2.69% | 7.82% |
| New York | 4.00% | 4.52% | 8.52% |
| North Carolina | 4.75% | 2.22% | 6.97% |
| North Dakota | 5.00% | 1.96% | 6.96% |
| Ohio | 5.75% | 1.48% | 7.23% |
| Oklahoma | 4.50% | 4.47% | 8.97% |
| Oregon | 0.00% | 0.00% | 0.00% |
| Pennsylvania | 6.00% | 0.34% | 6.34% |
| Rhode Island | 7.00% | 0.00% | 7.00% |
| South Carolina | 6.00% | 1.43% | 7.43% |
| South Dakota | 4.50% | 1.90% | 6.40% |
| Tennessee | 7.00% | 2.55% | 9.55% |
| Texas | 6.25% | 1.95% | 8.20% |
| Utah | 6.10% | 1.09% | 7.19% |
| Vermont | 6.00% | 0.24% | 6.24% |
| Virginia | 5.30% | 0.47% | 5.77% |
| Washington | 6.50% | 2.67% | 9.17% |
| West Virginia | 6.00% | 0.39% | 6.39% |
| Wisconsin | 5.00% | 0.44% | 5.44% |
| Wyoming | 4.00% | 1.36% | 5.36% |
* Combined rates are averages. Actual local rates may vary by city/county.
Frequently Asked Questions
How do I calculate the original price before tax?+
Divide the total amount you paid by (1 + the tax rate as a decimal). For example, if you paid $107 with a 7% tax rate, divide $107 by 1.07 to get the original pre-tax price of $100.
What is the formula to back out sales tax?+
The reverse sales tax formula is: Pre-tax Price = Total Amount ÷ (1 + Tax Rate). Convert the percentage to a decimal first — so 8.5% becomes 0.085, making the divisor 1.085. The result is the original price before tax was applied.
How do I calculate sales tax backwards?+
To calculate sales tax backwards, take your final total and divide it by 1 plus your tax rate as a decimal. If your receipt shows $53.50 and the sales tax rate is 7%, divide $53.50 by 1.07 to get $50.00 — the pre-tax price. The tax paid is the difference: $3.50.
Which US states have no sales tax?+
Five states charge no statewide sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon — remembered by the acronym NOMAD. However, some local municipalities in Alaska do charge local sales tax, so always verify your specific location.
Can I use this as a backwards sales tax calculator by state?+
Yes. Select your state from the dropdown and the calculator automatically applies the combined state and average local tax rate. You can also enter a custom rate manually if your city or county charges a different amount.
Is this reverse tax calculator free with no sign up?+
Yes — completely free with no account, no email, and no subscription required. Open the tool, enter your total and tax rate, and get your pre-tax price instantly.