Longueuil Property Tax 2026 — Mill Rate 0.8865%

What is Longueuil's 2026 property tax rate?

Longueuil's 2026 residential mill rate is 0.8865% (0.00886530 as a decimal). On a $460,000 home this works out to $4,078 per year, or roughly $340 per month if your lender holds the tax in escrow. Source: https://www.longueuil.quebec/fr/taxes, last verified 2026-04-29.

When are Longueuil property taxes due?

Longueuil's 2026 instalments is due February 11, 2026, April 13, 2026, June 11, 2026 and August 11, 2026. Longueuil mails one annual tax bill in January and collects it across four instalments. The literal dates are not present in the page's raw static HTML — they render only inside a JS-driven accordion introduction on the Taxes page, which is why earlier plain-fetch and even network-idle checks of this domain found no due date. Rendered today with a headless browser, the page states verbatim: "Votre compte de taxation annuelle a été mis à la poste le 12 janvier 2026" and lists "1er versement : 11 février 2026", "2e versement : 13 avril 2026", "3e versement : 11 juin 2026", "4e versement : 11 août 2026". Source: https://www.longueuil.quebec/fr/taxes, last verified 2026-08-29. Most lenders collect property tax monthly through PITI escrow rather than waiting for the city's due date.

How is my Longueuil 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 Longueuil 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 Longueuil'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 Longueuil with other Quebec cities in the table above.