Sales Tax Calculator by State

Pick a state and enter an amount: the calculator adds the state’s statewide rate from an official source (the state tax agency’s page, the state’s law or an agency publication; checked November 8, 2026) plus any local rate you type in, which starts at 0%. It also works backward from a total that already includes tax. States whose official source has not been read yet are not listed.

Maintained by Archie Chang · Rates checked November 8, 2026 · Methodology & sources

Your purchase

$
%

Starts at 0. Local rates are not built in: look yours up on the state’s official rate tool and type it here.

Tax and total

Total with tax

$106.25

Combined rate 6.25%

Price before tax$100.00
Texas state sales tax, 6.25%$6.25
Local tax you entered$0.00
Total with tax$106.25

The tax rounds half up to the cent. A seller’s own rounding rules and any items taxed at other rates can change the final charge.

FedRateCalc is not a tax agency and this is not tax advice. The state tax agency’s own rate page and lookup tool are authoritative, and a seller’s receipt shows the tax actually charged.

State pages

Frequently asked questions

How do I calculate sales tax?

Multiply the price before tax by the combined rate as a decimal. At 6% a $100.00 price has $6.00 of tax and a $106.00 total.

How do I take sales tax out of a total?

Divide the total by 1 plus the combined rate as a decimal. At 6%, a $106.00 total divided by 1.06 is $100.00 before tax, so the tax is $6.00.

Why is there a box for my local rate?

Many states let counties or cities add their own tax, and no official source publishes one average local rate. Look up your rate on your state’s own lookup tool and type it in; it starts at 0%.

Cite this page

Page title: Sales Tax Calculator by State: Add or Remove Tax. Updated November 8, 2026. Canonical URL: https://fedratecalc.com/sales-tax-calculator/

Data source: State tax agency pages listed in the sales tax by state table, compiled by FedRateCalc.

Plain-text citation

FedRateCalc. Sales Tax Calculator by State: Add or Remove Tax. Updated November 8, 2026. https://fedratecalc.com/sales-tax-calculator/

HTML link

<a href='https://fedratecalc.com/sales-tax-calculator/'>FedRateCalc</a>

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