Gatineau property taxes in 2026: how much, when to pay and how to contest your assessment

The $925.6 million 2026 budget was adopted on December 18, 2025. The increase is 3.0% for residential and other categories, and 4.0% for non-residential properties. The waste fee is $178.83 per dwelling.

There is no single residential rate: since 2024, Gatineau has set rates by neighbourhood unit. Two homes with the same assessment in different areas can therefore receive different bills.

Formula: municipal taxes = (taxable assessed value ÷ 100) × applicable neighbourhood-unit rates + fixed charges, including waste. Rates are expressed per $100 of taxable value. School tax is billed separately by the school service centre, not by the City.

The City’s 2025 budget showed a median residence assessed at $454,600 with municipal residential tax of $2,354.35. That example is for 2025, not 2026. The 2026 bills changed by neighbourhood unit, with a 3% category increase: do not turn this example into an estimate of your own bill.

The bill is mailed in February. The four deadlines are March 18, June 16, August 25, November 13, 2026. The City does not send reminders for instalments 2 to 4.

In the Portail citoyen, go to “Mes services > Évaluation et taxes”. You need the invoice number shown on your tax bill.

• View the official tax information and citizen portal details.

The current roll covers 2024, 2025 and 2026. It was tabled on October 18, 2023, using values as of July 1, 2022. The next three-year roll applies from 2027.

A new roll does not itself increase the City’s total tax revenue: rates are adjusted after a new roll. Your bill’s change can be above or below the average.

According to the Bulletin d’Aylmer, residential assessments on the 2024 roll rose 71.9% on average; the average single-family assessment went from $256,000 to $454,600. That assessment increase does not mean taxes rose by the same percentage.

Submit the “Demande de révision du rôle d’évaluation foncière” form to the Service de l’évaluation before May 1 following the roll’s entry into force, or within 60 days after a modification notice. This is not an annual deadline reopening with each tax bill.

Non-refundable fees: $80 for assessments up to $500,000; $325 over $500,000 up to $2 million; $574.50 over $2 million up to $5 million; $1,149.25 above $5 million.

Contact the assessment service at evaluation@gatineau.ca or 819-243-5594.

• View the assessment review procedure and form.

Municipal and school taxes are adjusted between buyer and seller at the notary. Welcome tax is different: it is a separate, one-time tax, not the recurring municipal bill.

Municipal assessment is not market value. To discuss your property’s value, see the home valuation page.

• Gatineau welcome tax: a separate, one-time tax.
• Free home valuation.

Gatineau has no single residential tax rate: the City’s budget sets the residential rate by neighbourhood unit, according to where your home is. School tax is set by the Québec government: $0.07899 per $100 of standardized assessment for 2026-2027, down from $0.08423 in 2025-2026, after a $25,000 assessment exemption. On top of that come the City’s fixed fees, including $178.83 per dwelling for residual waste in 2026.

No: in Gatineau, municipal tax is calculated on your property’s value on the assessment roll, not on the price you paid. The increase from a new roll can also be phased in: in the City’s 2025 budget example, a median residence assessed at $454,600 was taxed on a phased-in value of $391,219. The purchase price matters mainly for the welcome tax, whose base is the highest of the price paid, the amount in the deed and the roll value multiplied by the comparative factor, which is 1.02 in 2026.

In Gatineau, a buyer does not receive a separate municipal tax bill for the current year at the time of purchase: according to the City, municipal tax adjustments are made by your notary. The notary must give you a certificate showing the next payments to make to the City. The transfer duties bill, the welcome tax, arrives about 3 months after the purchase of the property, and it has the same file number as your municipal tax bill.

According to the City of Gatineau, the transfer factors in effect for 2026 are 1.02. For the 2026 tax base, the rate brackets vary by period: from January to February 24, the rates are 0.5%, 1.0%, 1.5%, 2.5%, and 3.0% for amounts exceeding $62,900, $315,000, $750,000, and $1,000,000 respectively. From February to December 31, the thresholds change to $500,000 for the 1.5% bracket and 3.0% for any excess.