Pay & tax · NUMORA
Sales Tax Calculator
Add tax, or reverse it out of a total.
Open interactive calculatorHow to use
Same math as VAT, framed as a receipt.
Formula
gross = net × (1+r)
FAQ
Is this Sales Tax calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Same math as VAT, framed as a receipt.
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