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United States Sales Tax / VAT Calculator

Add or strip United States sales tax or VAT at 7.0% and see the tax, the net price and the tax share of the gross.

About United States Sales Tax / VAT Calculator

Tax is applied to the net price, so the gross is the net multiplied by one plus the rate. Note that tax as a share of the gross is always lower than the headline rate — 20% on net is 16.67% of gross, which is the figure to use when working backwards from a tax-inclusive price. United States. Quoting the wrong side of a tax-inclusive price is one of the most common invoicing errors, and it compounds across every line of an order.

Formula

United States Sales Tax / VAT

Tax = net price × rate ÷ 100; gross = net + tax

net price
Price before tax is applied
rate
Statutory tax rate as a percentage

Worked example

With the default values below, United States Sales Tax / VAT Calculator returns Total Including Tax of $107.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Price before taxminimum 0 USD
100 USD
United States VAT or sales tax rateaccepts 0–100 %
7 %
Quantityminimum 1
1

Results

Total Including Tax
$107.00
Tax Amount
$7.00
Total Excluding Tax
$100.00
Tax per Unit
$7.00
Tax as Share of Gross
6.54%

Step by step

  1. 1Values used
  2. 2United States Sales Tax / VAT
  3. 3Total Including Tax= 107.00
  4. 4Tax Amount= 7.00
  5. 5Total Excluding Tax= 100.00
  6. 6Tax per Unit= 7.00
  7. 7Tax as Share of Gross= 6.54

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is United States Sales Tax / VAT calculated?

Tax = net price × rate ÷ 100; gross = net + tax Tax is applied to the net price, so the gross is the net multiplied by one plus the rate. Note that tax as a share of the gross is always lower than the headline rate — 20% on net is 16.67% of gross, which is the figure to use when working backwards from a tax-inclusive price.

Why does United States Sales Tax / VAT matter?

United States. Quoting the wrong side of a tax-inclusive price is one of the most common invoicing errors, and it compounds across every line of an order.

What values do I need to enter?

This calculator takes 3 inputs: Price before tax, United States VAT or sales tax rate, Quantity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

Related Calculators

United States specifics

Currency
$ USDUS Dollar
Region
North America
Country code
US
Amounts look like
$1,234,567.89
Dates look like
Mar 9, 2026
Units
imperialWeek starts Sunday

In United States, imperial units are in everyday use.

Results on this page are expressed in USD (US Dollar). Figures are estimates for general planning — confirm current rates and thresholds with the relevant United States authority before relying on them.

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United States Sales Tax / VAT Calculator | Calcrivo