Sales Tax Calculator
Add sales tax to a pre-tax price, or work backwards from a tax-included total.
About the Sales Tax Calculator
With rate r: taxed total = price × (1+r). Reversing, the tax inside a total is total × r/(1+r), not total × r.
Add sales tax to a pre-tax price, or work backwards from a tax-included total.
With rate r: taxed total = price × (1+r). Reversing, the tax inside a total is total × r/(1+r), not total × r.