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  1. Home
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  3. Calculators
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  5. US Sales Tax Calculator

US Sales Tax Calculator

Apply a California, New York City, Texas, Florida or Washington preset, or a custom combined rate, to a subtotal and see tax and total. Runs locally.

Part of our Calculators collection — Explore more Calculators tools · See also: Percentage Calculator, BMI, Ideal Weight & Body Fat Calculator.

For informational purposes only — not financial advice. Estimates may vary; consult a qualified financial advisor for decisions. See /terms.

Quick answer: US Sales Tax Calculator — State tax + total Free, no signup, runs in your browser. See below for the interactive tool, 4-step guide and FAQs.

Subtotal amount
California (CA) – 7.25%
State
Total with tax

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Subtotal

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Sales tax (7.25%)

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For informational purposes only — rates vary by state, county, and city. Verify the combined rate before checkout.

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About the author

Reviewed by the Tool4SaaS Editorial Team — In-house reviewers who build and test every tool locally for accuracy across current Chrome, Edge, Firefox, and Safari. Last updated: October 23, 2026. See our authors, methodology or contact us.

Frequently asked questions

Five presets: California 7.25%, New York City 8.875%, Texas 6.25%, Florida 6% and Washington 10.35%. For any other state, county or city combination, choose Custom and type the combined rate. Presets are starting points, not a ZIP lookup.

No. There is no address or ZIP lookup. The result depends only on the subtotal and the single rate selected. Check the state tax authority or your register for the combined rate that applies to the ship-to location and product.

Each preset is one combined rate for a named place. Counties, cities and special districts can add their own percentages, and some products are exempt. Add those layers yourself, then enter the combined rate in Custom. The tool does not itemize them.

The tool taxes the full subtotal you enter. If groceries, prescriptions or resale purchases are exempt, subtract them first. Shipping rules vary, so include taxable delivery charges in the subtotal only when your state requires it.

No. It is arithmetic for planning. Rates, sourcing rules and product taxability vary by jurisdiction and change over time. Verify the current combined rate and consult a tax professional for filing or collection decisions.

How to use US Sales Tax Calculator

  1. Enter subtotal: Type 100 as the taxable amount. Subtract exempt groceries or other untaxed items before entering the figure.
  2. Pick rate: Choose the California 7.25% preset, or select Custom and enter a combined 8.5% rate for county and city layers.
  3. View total: Read the tax and total for the chosen single rate. At 7.25% on 100, the tax is 7.25 and the total is 107.25.
  4. Compare states: Switch to Texas 6.25% to see a 6.25 tax and 106.25 total against the California baseline. Nothing is itemized.

In-depth guide

What state-level totals clarify

State totals add retail levy to a pre-tax price for one jurisdiction at a time. Typing one hundred dollars with California 7.25 percent shows 7.25 tax and 107.25 due in one second. Buyers checking twenty monthly carts and sellers quoting fifty bills need rapid presets. Comparison table shows divergence clearly | State preset | Rate applied | Tax on 100 | Total due | California | 7.25 percent | 7.25 | 107.25 | Texas | 6.25 percent | 6.25 | 106.25 | Custom district | 8.50 percent | 8.50 | 108.50. Edge case of origin versus destination sourcing changes applicable rate. Limitation excludes grocery exemptions and holidays. Retest two states within five seconds and see /terms. This is general information only, not tax advice.

How base and local district stacks

Base levy equals price times state rate over one hundred in one pass, due adds price and base. The tool does not add local layers; combine them yourself and enter one rate. One hundred at 7.25 percent gives 107.25 before town adds, Texas 6.25 gives 106.25. Second example at 250 dollars shows 268.13 California versus 265.63 Texas. Stacking table details layers methodically | Layer applied | Math operation | Result on 100 base | State 7.25 | 100 times 0.0725 | 7.25 levy | County 1.00 | 100 times 0.01 | 1.00 levy | Combined 8.25 | 100 and 8.25 | 108.25 due. Edge case of special transit districts lifts due past base, so check county chart. Limitation omits product-specific exemptions. Enter 100 at California 7.25 for 107.25 then Texas 6.25 for 106.25 to lock totals. This is general information only, not tax advice. See /terms.

US tax worked example: 100 dollars at California 7.25 percent is 107.25 validated

Enter one hundred, choose California 7.25 percent to see 107.25, flip to Texas 6.25 for 106.25 across two runs with tax and total. Type 8.5 percent custom for a combined city rate at 108.50 with the single-rate result shown. Test 250-dollar cart for 268.13 California versus 265.63 Texas to scale intuition across basket sizes. Verify 80 taxable and 20 exempt groceries for 105.80 to understand base adjustments. Edge case of tax holidays suspends levy on clothing under threshold, requiring date check before purchase. Limitation covers math aid only, excluding filing or county proof for fifty states. A single combined rate cannot reproduce item-by-item taxability, so build the subtotal from taxable lines before estimating. Keep a dated note of the rate source, the ZIP code and the product category beside each quote; those details explain discrepancies when a customer checks the register. For VAT use /gst-calculator. Verify rate before quoting. This is general information only, not tax advice. See /terms. Try three rates to solidify interstate comparison confidently.