HST Calculator for Canada
Add or remove sales tax for any province or territory: HST, GST, PST and QST, each shown as a separate line item. Free, no sign-up, runs entirely in your browser.
Enter 0 to 999,999,999,999.99, with up to 2 decimal places.
Total (tax included)
Figures rounded to 2 decimals (cents), rounding each tax separately with half a cent rounded up. Reverse mode preserves the entered total and assigns the remaining cents to the net amount. These are current general rates, not historical rates or item-specific exemptions.
How sales tax works across Canada
Canada layers a 5% federal GST with provincial taxes, and the combination depends on where the sale happens. Five provinces harmonised their provincial tax with the GST into a single HST: Ontario at 13%, Nova Scotia at 14% since 1 April 2025, and New Brunswick, Newfoundland and Labrador, and Prince Edward Island at 15%. British Columbia, Saskatchewan and Manitoba kept a separate PST charged on top of the 5% GST, while Alberta and the three territories charge GST only. Quebec pairs the 5% GST with its own QST of 9.975%.
To add tax, multiply the net price by (1 + combined rate/100): a C$100 item in Ontario totals C$113. To remove tax from an inclusive total, divide by the same factor: C$113 ÷ 1.13 = C$100. In British Columbia the factor is 1.12 (5% GST + 7% PST), because both taxes are calculated on the net price.
In Quebec, both taxes use the price excluding tax: GST is 5% and QST is 9.975%. On C$100, GST is C$5.00 and QST rounds from C$9.975 to C$9.98, for a total of C$114.98. The combined rate before rounding is 14.975%, so reverse calculations use 1.14975.
Sources checked 7 September 2026: CRA GST/HST rates and Revenu Québec calculation and rounding rules. Nova Scotia invoices before 1 April 2025 may use 15%; this calculator applies the current 14% rate. A rounded invoice cannot always be reconstructed exactly from its total alone.
Sales tax rates by province and territory
| Province / territory | Taxes | Combined on net price |
|---|---|---|
| Alberta, NT, Nunavut, Yukon | GST 5% | 5% |
| British Columbia | GST 5% + PST 7% | 12% |
| Saskatchewan | GST 5% + PST 6% | 11% |
| Manitoba | GST 5% + RST 7% | 12% |
| Ontario | HST | 13% |
| Nova Scotia (from 1 April 2025) | HST | 14% |
| New Brunswick, Newfoundland and Labrador, PEI | HST | 15% |
| Quebec | GST 5% + QST 9.975% (both taxes on net price) | 14.975% |
Some PST exemptions and point-of-sale rebates exist (for example children's clothing or books in certain provinces). This calculator applies the general rates only.
Frequently asked questions
What is HST?
HST (Harmonized Sales Tax) combines the 5% federal GST with a provincial portion into a single tax. Ontario charges 13% HST, Nova Scotia charges 14% from 1 April 2025, and New Brunswick, Newfoundland and Labrador, and Prince Edward Island charge 15% HST.
Which provinces use HST, and which use GST plus PST?
HST applies in Ontario (13%), Nova Scotia (14% from 1 April 2025), and New Brunswick, Newfoundland and Labrador, and Prince Edward Island (15%). British Columbia (7% PST), Saskatchewan (6% PST) and Manitoba (7% PST) charge 5% GST plus a separate provincial sales tax. Alberta, the Northwest Territories, Nunavut and Yukon charge 5% GST only. Quebec charges 5% GST plus 9.975% QST.
How do I remove HST from a total?
Divide the tax-inclusive total by 1 plus the combined rate. In Ontario: C$113 ÷ 1.13 = C$100 net, with C$13 of HST. In a 15% HST province, divide by 1.15. For provinces with separate GST and PST, divide by 1 plus both rates combined (for example 1.12 in British Columbia).
How is QST calculated in Quebec?
Quebec's QST of 9.975% is calculated on the selling price excluding GST. On a C$100 item, GST is C$5.00 and QST is C$9.98 after rounding, for a total of C$114.98. The combined rate before rounding is 14.975%.
Is this HST calculator free?
Yes. It is completely free and requires no sign-up. The calculator processes your amounts locally in your browser without sending them to a calculation server. Advertising and optional feedback use external services described in our privacy policy.