What it does
Type a price and pick where you are. The calculator adds the right sales tax, GST or VAT to a pre-tax price, or takes the tax back out of a total that already includes it. It shows the price before tax, the tax, the total and, where a tax has parts, each part on its own line: GST and PST in Canada, state and local tax in the US, CGST and SGST in India. Everything is worked out in your browser.
For discounts and markups use the percentage calculator, and for a restaurant bill the tip calculator.
How to use it
- Pick the region tab: Canada, US, UK, India, Gulf or Any rate.
- Type the amount.
- Choose whether the amount is before tax (add tax) or with tax (take it out).
- Pick the province, state, rate or country.
What each option does
- Canada: each province’s GST, HST, PST or QST. Quebec’s QST is on the price before GST.
- US: the state’s own rate, plus a box for your city and county rate, which can add several percent.
- UK: VAT at 20% standard, 5% reduced or 0% zero rate.
- India: GST at 5%, 18% or 40% since September 2025, plus 3% for gold. Within one state the tax is half CGST and half SGST; between states it is all IGST.
- Gulf: VAT in the UAE (5%), Saudi Arabia (15%), Bahrain (10%) and Oman (5%).
- Any rate: type your own.
Worked example
A jacket costs $100 in Ontario. HST is 13%, so the total is $113.00. The other way round, a receipt total of $113 with 13% HST inside it was $100 before tax: 113 ÷ 1.13 = 100.
In India, ₹1,000 at 18% GST within one state adds ₹90 CGST and ₹90 SGST, so the total is ₹1,180.
FAQs
Why not just take 13% off the total? Because the tax was worked out on the smaller pre-tax price. 13% of $113 is $14.69, not the $13 of tax inside it.
Are the rates always right for my item? Not always. Groceries, books, children’s clothes and many services have lower rates or none. Check the official source.
Is anything saved? No. Nothing you type leaves the page. Not financial or tax advice.
Where the numbers come from
- Canada GST/HST by province (Nova Scotia 14% from 1 April 2025): CRA, GST/HST calculator (and rates), https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/charge-collect-which-rate/calculator.html (checked 2026-11-10)
- PST: British Columbia 7% https://www2.gov.bc.ca/gov/content/taxes/sales-taxes/pst ; Manitoba RST 7% https://www.gov.mb.ca/finance/taxation/taxes/retail.html ; Saskatchewan 6% https://www.saskatchewan.ca/business/taxes-licensing-and-reporting/provincial-taxes-policies-and-bulletins/provincial-sales-tax ; Quebec QST 9.975%, Revenu Québec, https://www.revenuquebec.ca/en/businesses/consumption-taxes/gsthst-and-qst/basic-rules-for-applying-the-gsthst-and-qst/tables-of-gst-and-qst-rates/ (all checked 2026-11-10)
- US state rates (state level only, as of 1 July 2026): Tax Foundation, State and local sales tax rates, midyear 2026, https://taxfoundation.org/data/all/state/2026-sales-tax-rates-midyear/ (checked 2026-11-10; a research body, not a government source: check your state's revenue department)
- UK VAT 20%, 5%, 0%: gov.uk, VAT rates, https://www.gov.uk/vat-rates (checked 2026-11-10)
- India GST 5% / 18% / 40% from 22 September 2025: PIB, Recommendations of the 56th GST Council meeting, https://www.pib.gov.in/PressReleasePage.aspx?PRID=2163555 (checked 2026-11-10). 3% (gold, silver) and 0.25% (rough diamonds) special rates: estimate, check the official source
- Gulf VAT: UAE 5% (tax.gov.ae), Saudi Arabia 15% (zatca.gov.sa), Bahrain 10% (nbr.gov.bh), Oman 5% (https://tms.taxoman.gov.om/portal/tax-rate) (checked 2026-11-10)
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Last updated 2026-11-10.