Canada GST/HST Calculator

Add GST/HST to a net price or extract it from a gross amount at Canada's verified standard rate of 5% (federal GST) (reduced: HST 13% ON / 14% NS / 15% NB,NL,PEI; GST-only AB,BC,SK). All math runs locally in your browser.

5% (federal GST) standard GST/HST rate
Reduced rates
HST 13% ON / 14% NS / 15% NB,NL,PEI; GST-only AB,BC,SK
Source
Government of Prince Edward Island
Verified
— how we verify · changelog

Federal GST 5% nationwide; HST provinces add provincial part (PEI page: 5% fed + 10% = 15%). NS cut to 14% on 1 Apr 2025. canada.ca blocked WebFetch (403).

Rate

How the math works

Add GST/HST (forward): gross = net × (1 + rate ÷ 100)

Extract GST/HST (reverse): net = gross ÷ (1 + rate ÷ 100)

Worked example at Canada's standard rate: net 100 × (1 + 5 ÷ 100) = 105.00 gross, of which 5.00 is GST/HST.

Issuing a GST/HST-compliant invoice?

Rates are only half of it — what must appear on the invoice (tax numbers, rate per line, reverse-charge wording for cross-border B2B) is covered in the VAT & GST invoicing guide, and the free VAT invoice generator produces a compliant PDF. The full rate dataset behind this page (42 jurisdictions, source per row) is downloadable: CSV · JSON (CC BY 4.0).

Canada GST/HST FAQ

What is the standard GST/HST rate in Canada?

5% (federal GST), per Government of Prince Edward Island (verified 2026-06-12). Reduced rates: HST 13% ON / 14% NS / 15% NB,NL,PEI; GST-only AB,BC,SK. Rates change — always confirm against the linked source before filing anything.

How do I add GST/HST to a net price?

Multiply the net amount by (1 + rate ÷ 100). Reverse (extracting from a gross, tax-inclusive amount): divide by (1 + rate ÷ 100). The calculator on this page does both with Canada's verified rate preloaded.

Where does this rate come from?

Every rate in our dataset cites the source it was verified against — for Canada, that is Government of Prince Edward Island (linked on this page), checked on 2026-06-12. The full 42-jurisdiction dataset is downloadable under CC BY 4.0, and every verification pass is logged in our public changelog.

Not tax advice. Rates and rules change; the verification date above tells you when we last confirmed this figure, not that it is still current today. Confirm against the linked official source before filing or invoicing.