USA Sales Tax Calculator

Add or remove Sales Tax at USA’s 7.25% standard rate — net, Sales Tax and gross, instantly. Free, no signup.

Sales Tax rate
%

Sales Tax varies by location — enter your exact combined rate for a precise result.

Net
$1,000.00
Sales Tax @ 7.25%
$72.50
Gross
$1,072.50

Sales Tax in USA: the essentials

  • Standard rate: varies by state (combined ~6–10%)
  • Registration: economic nexus — typically $100,000 in sales or 200 transactions per state
  • Return: state sales tax return, filed monthly or quarterly with each state Department of Revenue
  • Corporate tax: 21% federal corporate income tax

How to calculate Sales Tax in USA

  1. Enter the amount. Type the amount — your net figure to add Sales Tax, or a tax-inclusive figure to remove it.
  2. Choose add or remove Sales Tax. Switch between adding Sales Tax to a net price and backing it out of a gross price.
  3. Pick the rate. Select the Sales Tax rate (default 7.25%), or enter your exact local rate.
  4. Read the result. See the net, Sales Tax amount and gross total update instantly.

Stop calculating Sales Tax by hand

KARR applies USA’s Sales Tax automatically on every invoice, tracks the registration threshold, and prepares the return — flagging non-compliance before you file.

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Frequently asked questions

What is the Sales Tax rate in USA?

The standard Sales Tax rate in USA is varies by state (combined ~6–10%).

How do I calculate Sales Tax in USA?

To add Sales Tax, multiply the net amount by the rate. At 7.25%, a 1000 net becomes 1072.50 gross. To remove Sales Tax from a tax-inclusive price, divide it by 1.073. This calculator does both instantly.

When must I register for Sales Tax in USA?

Registration: economic nexus — typically $100,000 in sales or 200 transactions per state, filed with each state Department of Revenue.

Is this USA Sales Tax calculator free?

Yes — it is completely free, needs no signup, and runs entirely in your browser. For automatic Sales Tax on every invoice and one-click returns, try KARR.

Read the full USA Sales Tax & tax guides →

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<iframe src="https://karr.pro/knowledge/tools/sales-tax-calculator-usa/embed" title="USA Sales Tax Calculator" width="100%" height="520" style="border:1px solid #e7e5e4;border-radius:12px" loading="lazy"></iframe>

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Rates shown reflect USA’s published Sales Tax rates and are provided for guidance only — confirm the rate for your specific supply. Not tax advice.