Free sales tax calculator 2026. Calculate US sales tax by state (California 7.25%, Texas 6.25%, New York 4%). Add sales tax to price or extract from total. Combined state + local rates.
Choose "Add Sales Tax (Forward)" if you have a pre-tax subtotal, or "Extract Tax (Reverse)" if you have a tax-inclusive receipt total.
Enter the dollar amount and item quantity.
Enter your combined State + Local Sales Tax Rate percentage (or click any of the quick state rate presets).
View the exact Pre-Tax Subtotal, Sales Tax Dollar Amount, and Tax-Inclusive Total Price immediately.
Calculate both forward sales tax (adding state and local sales tax to a net price) and reverse sales tax (backing out the exact pre-tax revenue and sales tax payable from a tax-inclusive gross receipt).
Buying 3 monitors at $350.00 each = $1,050.00 pre-tax subtotal. Sales tax at 8.25% = $86.63. Total out-of-pocket checkout price = $1,136.63.
A restaurant collects $500.00 in gross tax-inclusive sales in New York City (8.875% tax). Pre-tax net revenue = $500 ÷ 1.08875 = $459.24. Sales tax to remit to NYS = $40.76.
$240.00 pre-tax merchandise × 10.25% = $24.60 sales tax, for a total receipt of $264.60.
| State | Base State Rate | Max Local Tax Add-On | Avg Combined Rate | Economic Nexus Threshold (Remote Sellers) |
|---|---|---|---|---|
| California (CA) | 7.25% | Up to 3.50% | 8.85% (LA: 9.50%) | $500,000 annual CA sales |
| Texas (TX) | 6.25% | Up to 2.00% | 8.20% (Austin/Dallas: 8.25%) | $500,000 annual TX sales |
| New York (NY) | 4.00% | Up to 4.875% | 8.53% (NYC: 8.875%) | $500,000 AND 100+ transactions |
| Florida (FL) | 6.00% | Up to 2.00% | 7.02% (Miami: 7.00%) | $100,000 annual FL taxable sales |
| Illinois (IL) | 6.25% | Up to 4.75% | 8.86% (Chicago: 10.25%) | $100,000 annual sales |
| Washington (WA) | 6.50% | Up to 4.10% | 9.38% (Seattle: 10.35%) | $100,000 annual gross receipts |
| Pennsylvania (PA) | 6.00% | Up to 2.00% | 6.34% (Philly: 8.00%) | $100,000 annual PA sales |
| NOMAD States (DE, MT, NH, OR) + AK | 0.00% | 0.00% (except local AK) | 0.00% State Sales Tax | No statewide sales tax |
Bookkeepers, retail managers, and event vendors often sell items at a flat tax-inclusive price (for example, "$20.00 tax included") and need to back out how much of that $20.00 is net revenue vs. sales tax owed to the state Department of Revenue.
Never multiply the gross receipt by the tax rate! If your tax rate is 8.25% and you collect $100.00 tax-inclusive, multiplying $100 × 8.25% gives $8.25 (which is wrong because it taxes the tax). Instead, **divide the gross total by `1 + Tax Rate`**: `$100.00 ÷ 1.0825 = $92.38` Pre-Tax Price, and `$100.00 − $92.38 = $7.62` Sales Tax payable.
Find answers to the most common questions about sales tax calculator.
Convert the sales tax percentage to a decimal by dividing by 100 (for example, 8.25% becomes 0.0825), then multiply by the pre-tax price. On a $150 item at 8.25% tax, the sales tax is $150 × 0.0825 = $12.38, making the total price $162.38.
Divide the tax-inclusive total price by (1 + the sales tax rate as a decimal). For example, if a tax-inclusive receipt is $108.25 and the tax rate is 8.25%, divide $108.25 by 1.0825 to get the $100.00 pre-tax price and $8.25 in sales tax.
Five US states have no statewide sales tax: Delaware, Montana, New Hampshire, Oregon, and Alaska (though some local municipalities in Alaska charge a local sales tax). They are commonly remembered by the acronym NOMAD.
In destination-based states (the majority of US states, including CA, NY, and FL), sales tax is calculated based on the buyer's shipping address. In origin-based states (such as intrastate sales in Texas, Pennsylvania, and Ohio), sales tax for in-state shipments is based on the seller's business location.
Calculations and computational models on QuickBizCalc are verified against published regulatory standards and statutory tax tables:
Publication 15-T (Federal Income Tax Withholding Methods) & Publication 15 (Employer's Tax Guide).
Fair Labor Standards Act (FLSA 29 U.S.C. § 207) regulations on overtime hours, recordkeeping, and minimum wage.
OASDI taxable maximum wage base limits and statutory FICA tax rates (6.2% Social Security + 1.45% Medicare).
Formulas and worked examples are checked against the sources above before publishing. For advice on your own situation, consult a licensed tax professional or accountant.
Total Price Including Sales Tax
$107.25
Pre-Tax Price
$100.00
Tax Rate
7.25%
Sales Tax
$7.25
Gross Total
$107.25
