Gatineau Property Tax 2026 — Mill Rate 0.8150%

What is Gatineau's 2026 property tax rate?

Gatineau's 2026 residential mill rate is 0.8150% (0.00815000 as a decimal). On a $450,000 home this works out to $3,667 per year, or roughly $306 per month if your lender holds the tax in escrow. Source: https://www.gatineau.ca/taxes/, last verified 2026-04-29.

When are Gatineau property taxes due?

Gatineau's 2026 instalments is due March 18, 2026, June 16, 2026, August 25, 2026 and November 13, 2026. The 2026 bill was mailed in February 2026. No notice is sent for the 2nd, 3rd or 4th instalments — only the first appears on the mailed bill. Source: https://www.gatineau.ca/portail/default.aspx?c=en-CA&p=guichet_municipal%2Ftaxes_municipales, last verified 2026-08-27. Most lenders collect property tax monthly through PITI escrow rather than waiting for the city's due date.

How is my Gatineau home assessed?

Your tax is calculated as assessed value × mill rate, not market value × mill rate. Quebec uses a public assessment authority (BC Assessment, MPAC in Ontario, etc.) to set assessed values, usually updated every 1-4 years. Assessed value typically lags market value, so the same mill rate produces different effective burdens depending on assessment cycle timing.

Are Gatineau property taxes deductible on my income tax return?

Property tax on your principal residence is NOT deductible federally or provincially. It only becomes deductible when the property generates rental income (line 9180 on T776) or self-employed business income (CCA / business-use-of-home on T2125). For a principal residence, the tax is a non-deductible cost of ownership.

Why does Gatineau's mill rate differ from neighbouring cities?

Each Canadian municipality sets its own residential mill rate to fund local services — police, fire, transit, parks, road maintenance — plus a provincially-set education portion. Cities with higher assessed values can raise the same revenue at a lower mill rate (Vancouver, Toronto), while cities with lower assessed values often need higher rates to fund equivalent services. Compare Gatineau with other Quebec cities in the table above.