Whether you need to add tax to a price or pull the tax out of a total that already includes it, get the exact split in seconds — then track tax across every sale with the full calculator.
Add or extract tax at any rate — and log it across every sale.
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To add tax, multiply the pre-tax amount by the tax rate and add it on: a $100 item at 8% tax is $100 + $8 = $108. To extract tax from a total that already includes it, divide the total by (1 + the rate): $108 divided by 1.08 = $100 net, so $8 was tax. This calculator does both directions.
Tax-exclusive pricing shows the price before tax and adds tax at checkout (common in the US). Tax-inclusive pricing shows a single price with tax already baked in (common in many other countries). The calculator handles both, so you can add tax to an exclusive price or back it out of an inclusive one.
A ready-to-use spreadsheet (Excel & Google Sheets): add-or-extract tax at any rate, a multi-rate transaction log, and period totals of tax collected — delivered instantly after checkout. AI-assisted, human-built; not tax advice.
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