Add Sales Tax or VAT
Add a user-specified flat tax rate to a before-tax price. This is generic arithmetic, not a lookup of local tax rules.
How to use Add Sales Tax or VAT
- Enter “Before-tax amount”, using the units and limits shown in its label.
- Enter “Tax rate (%)”, using the units and limits shown in its label.
- Select Calculate or Process. Review the result and any validation message before copying or downloading available output. Reset clears the result and restores the starting inputs.
Method & assumptions
Tax = before-tax amount×rate/100; total = amount+tax.
Worked example
100 plus 18% tax totals 118, including 18 tax.
Results and projections are informational estimates, not financial, medical, legal, tax, or property advice. Check assumptions, units, rounding, and local requirements independently. Investment illustrations do not guarantee returns. Keep original files and check transformed output before use.
Questions, answered
Does the tool know my tax jurisdiction?
No. Enter the applicable rate yourself and check local exemptions, rounding rules, and compound tax requirements.
Where does this calculation run?
It runs locally in your browser. Enter plain numbers without currency symbols or thousands separators; use the same currency and measurement units throughout unless a converter explicitly asks for units.