How this works
Three tax regimes, one country.
Canadian sales tax comes in three flavours depending on which province or territory you're in:
- HST provinces (Ontario, New Brunswick, Newfoundland & Labrador, Nova Scotia, PEI) — the federal GST and provincial sales tax are blended into one Harmonized Sales Tax.
- GST + PST provinces (BC, Manitoba, Saskatchewan) — federal GST charged separately from a provincial sales tax. Importantly, PST in these provinces typically applies only to goods, not most services.
- GST-only jurisdictions (Alberta and the three territories) — only the 5% federal GST applies. Alberta is the only province with no provincial sales tax.
- Quebec — federal GST plus the provincial QST, which is calculated only on the pre-GST amount (since 2013).
"Quick" tax-out math
To back the tax out of a tax-included price, divide by 1 plus the rate, not multiply by 1 minus the rate. For a $1,130 Ontario invoice, the pre-tax amount is $1,130 ÷ 1.13 = $1,000 — not $1,130 × 0.87 = $983.10 (a common mistake).
// disclaimer
Rates current as of January 2026. This calculator covers the everyday case (one rate, applied to a single line item). For things like real estate, used vehicles, restaurants, or alcohol, special rules may apply.