Add a tax rate to a net figure, or take it back out of a gross one. Removing tax is where by-hand attempts go wrong: taking 20% off a tax-inclusive price does not give the net amount, because the rate was applied to the smaller figure — you have to divide, not subtract.
Runs entirely in your browser
Add a tax rate to a price, or extract the tax already contained in one. This calculator handles sales tax, VAT and GST in both directions: give it a net figure and a rate and it adds the tax to produce the gross price, or give it a gross figure and it works back to the net amount and the tax within it.
The reverse case is where hand calculations go wrong. Taking 20% off a tax-inclusive price does not give the net amount, because the 20% was applied to the smaller net figure, not the larger gross one. Recovering the net requires dividing by 1.20, not subtracting 20% — and the tool does this correctly, which matters for expense claims and bookkeeping.
It runs in your browser, so your figures stay private. Use it to price a product with tax added, to split an invoice total into net and tax, or to check that a receipt’s tax line is right.
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