Sales Tax Calculator
Add sales tax to a net price, or reverse-calculate from a gross total.
How It Works
In "add" mode, tax = amount × rate and gross = amount + tax. In "remove" mode, net = amount ÷ (1 + rate) so you can work backwards from a tax-inclusive total to find the pre-tax price and tax portion.
FAQ
Which rate should I use?
Use the combined state + local rate for your jurisdiction.
Currency?
Calculator is currency-agnostic — interpret the $ as your local currency.
VAT/GST?
The math is identical for VAT and GST.
Rounding?
Values display to 2 decimal places.
Tax advice?
This is a calculator, not tax advice — check local regulations.
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