Canada GST Calculator
Last reviewed 16 October 2026
Five percent in Alberta, 13% in Ontario, 14.975% in Quebec — Canadian sales tax depends entirely on the province, and this calculator handles all of them.
GST, HST, QST and PST — who charges what
Canada runs a federal GST of 5% everywhere, and provinces either fold their tax into a combined HST or charge their own separate sales tax. What the customer pays depends entirely on the province:
| Where | Tax on the invoice | Combined rate |
|---|---|---|
| Alberta, Nunavut, NWT, Yukon | GST only | 5% |
| Ontario | HST | 13% |
| Nova Scotia | HST | 14% |
| New Brunswick, Newfoundland & Labrador, PEI | HST | 15% |
| Quebec | GST 5% + QST 9.975% | 14.975% |
| British Columbia | GST 5% + PST 7% | 12% |
| Saskatchewan | GST 5% + PST 6% | 11% |
| Manitoba | GST 5% + RST 7% | 12% |
One practical detail: the GST/HST is a VAT-style tax — registered businesses reclaim it as input tax credits (ITCs). Quebec's QST works the same way for registrants; the BC, Saskatchewan and Manitoba provincial taxes generally do not come with an equivalent credit, which is why they are listed separately rather than rolled in.
Three provinces, three calculations
GST only (5%): $100 net → $105, with $5 of GST. Backwards: $105 ÷ 1.05 = $100 net. On $2,000 net the GST is $100, for a $2,100 total.
Ontario HST (13%): $100 net → $113. Backwards: $226 ÷ 1.13 = $200 net, with $26 of HST inside. A Toronto consultancy invoicing $1,500 plus HST bills $1,695 — $195 to remit, less any input tax credits on its own purchases.
Quebec (14.975% combined): $200 net → $229.95. Backwards: $229.95 ÷ 1.14975 = $200 net. Two decimal rates stacked on top of each other — leave the arithmetic to the calculator rather than the back of an envelope.
Thresholds, filing and place-of-supply
- Small supplier threshold: registration becomes mandatory once your taxable revenue exceeds CAD $30,000 over four consecutive calendar quarters (or a single quarter for some businesses). Below that you can register voluntarily to reclaim ITCs.
- Filing: GST/HST returns are filed monthly, quarterly or annually depending on your revenue — most small businesses file quarterly or annually, with the option to align with their fiscal year.
- Place of supply: for goods and many services the rate depends on where the customer is — which is why cross-province sellers track Ontario 13% versus Alberta 5% invoices carefully.
- Authority: the Canada Revenue Agency (CRA) administers GST/HST; your business number (BN) with an RT account is your GST/HST registration.
Related tools
New Zealand GST calculator · Australia GST calculator · Reverse VAT calculator · All VAT and GST rates
Canadian GST/HST questions
What is the GST rate in Canada?
The federal GST is 5%. Provinces with HST charge a combined 13% (Ontario), 14% (Nova Scotia) or 15% (New Brunswick, Newfoundland & Labrador, PEI). Quebec adds 9.975% QST, and BC, Saskatchewan and Manitoba charge their own PST/RST.
How do I remove GST from a price?
Divide by 1.05 at 5%: $105 gross gives $100 net with $5 of GST. For Ontario HST, divide by 1.13; the same division method applies at every combined rate.
When does a Canadian business register for GST/HST?
When taxable revenue exceeds CAD $30,000 over four consecutive quarters — or immediately for some businesses. Voluntary registration is possible below the threshold.
Is HST the same as GST?
HST is the federal GST combined with the provincial part into a single tax. In HST provinces you charge one rate; in GST-only provinces you charge 5% GST, plus PST/QST separately where applicable.
Do Alberta and the territories charge HST?
No — Alberta, Nunavut, the Northwest Territories and Yukon charge the 5% GST only, which is why their invoices look cheaper than Ontario's 13% HST or the Atlantic 15%.
Checked against CRA guidance on 16 October 2026 · Methodology · Editorial standards · Report an error