Sales Tax Calculator
Add sales tax to a price or work backwards from a tax-inclusive total. Enter any tax rate — state, local, or VAT — and get the tax amount and final price instantly. Useful for pricing, invoicing, and receipts.
How to calculate sales tax
Multiply the pre-tax price by the tax rate: a $100 sale at 8.25% adds $8.25 of tax for a $108.25 total. To reverse it, divide the total by 1 plus the rate: $108.25 ÷ 1.0825 = $100 pre-tax.
Custom rates and brackets
The calculator accepts any rate, so it works for combined state and local rates, VAT percentages, and corporate estimates. Results carry directly into the invoice and receipt generators.
Example calculation
Price $250, tax rate 8.25%:
Tax: $20.63 · Total: $270.63
Reverse: total $270.63 at 8.25% → pre-tax $250.00
Frequently Asked Questions
Can it remove tax from a total?
Yes. Reverse calculation backs the tax out of a tax-inclusive amount.
Does it support VAT?
Yes. Enter any percentage rate — it works for sales tax, VAT, or combined state and local rates.
Is the sales tax calculator free?
Yes, free and unlimited with no signup.