Pay & tax · NUMORA

Sales Tax Calculator

Add tax, or reverse it out of a total.

Open interactive calculator

How 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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