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Entered-rate VAT and sales tax calculator
Add tax to a net amount or extract tax from a tax-inclusive amount using your chosen rate.
Numbers and dates
Text
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter values using decimal points and choose the operation or assumptions shown.
- Select Calculate and review the numerical result and its stated conventions.
- Download the result or amortization schedule when available. Reset restores the example inputs.
Examples
100 net at an entered 20% rate gives 20 tax and 120 gross.
Limitations
- Runs locally. Decimal calculations use floating-point arithmetic, rounded to 12 significant digits; monetary displays use two decimals. Exact integer and fraction results are labelled separately.
- Use one currency throughout. Estimates use your inputs and stated assumptions; fees, taxes, inflation and rate changes are excluded unless explicitly entered. These are calculations, not lending offers or investment forecasts.
- User-supplied single rate from 0% to 1,000%. No country, jurisdiction, tax eligibility, exemptions or invoice rounding rules are determined.
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