How do I remove sales tax from a total?

Switch to the reverse mode and enter the tax-inclusive amount. The calculator divides it back out to find the pre-tax price.

What is the difference between sales tax and VAT?

Sales tax is added on top of the price at checkout, while VAT is already included in the displayed price. Use reverse mode for VAT-inclusive prices.

Sales Tax Calculator | Tsinglin.tech

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Amount ($)

Tax rate (%)

Direction

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Add sales tax to a price, or work backwards from a tax-inclusive total to find the tax you paid. Free, no signup.

How to use Sales Tax Calculator

Open the toolNo signup and nothing to install; it works as soon as the page loads.
Set “Amount”
Set “Tax rate”
Set “Direction”
Read the resultChange any input and the result is recalculated immediately.

Worked example with the defaults

TOTAL WITH TAX · $8.25 tax on $100.00: $108.25

Nothing you enter leaves your device

All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.

That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.

What this tool does not do

Sales Tax Calculator only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.

It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.

Frequently Asked Questions

How do I remove sales tax from a total?: Switch to the reverse mode and enter the tax-inclusive amount. The calculator divides it back out to find the pre-tax price.
What is the difference between sales tax and VAT?: Sales tax is added on top of the price at checkout, while VAT is already included in the displayed price. Use reverse mode for VAT-inclusive prices.