Sales Tax Calculator to Add or Reverse Tax from a Total

    How to Calculate Add or Reverse Tax from Total Price with the Sales Tax Calculator

    Calculate sales tax and total price, or reverse tax from a tax-inclusive amount. Works with US sales tax, VAT, GST, and custom percentage rates.

    Formula

    Tax = pre-tax price x tax rate; pre-tax price = total / (1 + tax rate)

    How to use the result

    Use the correct combined jurisdiction rate and confirm whether shipping or specific items are taxable.

    This estimate is not tax advice and does not determine nexus, exemptions, or filing obligations. Inputs and calculations stay in this browser.

    Calculate sales tax, VAT, or GST. Find tax amounts, pre-tax prices, or determine tax rates from prices.

    Calculate Tax Amount

    Calculate Pre-Tax Price

    Find Tax Rate

    Multi-Item Tax Calculator

    Common Tax Rates by Region

    California, USA

    7.25%

    New York, USA

    8.00%

    Texas, USA

    6.25%

    Florida, USA

    6.00%

    UK (VAT)

    20.00%

    Germany (VAT)

    19.00%

    France (VAT)

    20.00%

    Canada (GST)

    5.00%

    Australia (GST)

    10.00%

    Japan

    10.00%

    Note: Tax rates may vary by locality and product type. Always verify current rates.

    Understanding Sales Tax

    Adding Tax

    Total = Price × (1 + Tax Rate). For a $100 item at 8% tax: $100 × 1.08 = $108

    Removing Tax (Tax-Inclusive)

    Pre-Tax Price = Total ÷ (1 + Tax Rate). For $108 at 8% tax: $108 ÷ 1.08 = $100

    Types of Sales Tax

    • Sales Tax (US): Added at point of sale, varies by state/locality
    • VAT (Europe): Value Added Tax, typically included in displayed prices
    • GST (Canada, Australia): Goods and Services Tax