Montreal's 2026 Tax Hike: What Every Homeowner Needs to Know About Their Legal Rights

Montreal's first-time mayor Soraya Martinez Ferrada has tabled the city's 2026 municipal budget — and for homeowners across the island, it comes with a significant price tag. The $7.67 billion operating plan, presented in early 2026, includes an average residential property tax rate increase of nearly four percent. For many Montrealers, that means hundreds of dollars more in annual property costs. What many homeowners don't know is that they have legal options to push back.

Montreal's 2026 Budget: What Changed

The 2026 municipal budget is the first tabled by Mayor Soraya Martinez Ferrada, who made history as the first Latin American Canadian to lead the city. Alongside the $7.67 billion operating budget, the city unveiled a $25.9 billion capital program running through 2035, covering infrastructure, transit, and affordable housing.

For residential property owners, the four percent average tax hike translates to an additional $150 to $400 per year for a typical Montreal home, depending on assessed value. Property taxes in Montreal are calculated based on each property's assessed value, which is set by the city's evaluation roll and updated every three years. When the tax rate goes up — or when assessments are revised upward — property owners can find themselves paying significantly more without clear justification.

Your Legal Rights When Property Taxes Rise

Many homeowners assume that a tax increase is simply a bill to pay. In Quebec, that assumption is wrong. Property owners have a legal right to contest their property assessment if they believe the value assigned to their property does not accurately reflect its fair market value.

The process in Quebec begins with a review request filed with your municipality, and can escalate to the Tribunal administratif du Québec (TAQ) if the result is unsatisfactory. According to the Government of Quebec, property owners have 60 days from the date of the evaluation roll deposit to file a formal review request — a deadline that many miss simply because they don't know it exists.

Key steps homeowners can take include:

• Request a copy of your assessment file: You are entitled to see exactly how the city calculated your property's assessed value, including comparable sales data and any physical characteristics on record.
• Compare with similar properties: If neighbouring homes of similar size and condition carry lower assessments, this is grounds for a formal challenge.
• Document improvements or deficiencies: Major renovation costs, structural issues, or market factors like proximity to construction zones may justify a lower assessment.
• File a review request within the deadline: Missing the 60-day window means waiting until the next evaluation cycle, which can be up to three years.

When to Call a Lawyer

While some homeowners successfully challenge their assessments independently, cases involving significant sums — or disputed calculations — often benefit from legal representation. A lawyer specializing in municipal law or real estate can help you:

• Interpret your assessment file and identify valuation errors
• Prepare a formal contestation with supporting evidence
• Represent you before the Tribunal administratif du Québec if negotiations fail
• Identify whether the increase stems from the tax rate (a policy decision) or from a reassessment of your property's value (which is contestable)

It's worth noting that challenging a property assessment and disputing a tax rate hike are two different things. The city's decision to raise the overall tax rate is a policy matter that cannot be challenged in the same way. However, if your property's assessed value is inflated, reducing it will lower your tax bill — regardless of the rate.

Montreal's blue-collar workers' strike earlier this year has already affected home maintenance and repair timelines for many property owners. A disputed assessment compounded by delayed inspections or unfinished municipal work can be a strong basis for an appeal.

The Timing Window for 2026

The 2026 evaluation roll was deposited in January 2026. This means the 60-day review request window may already be closed for most Montreal homeowners. However, there are still avenues available:

1. Administrative review by exception: If you discover a factual error in your assessment (such as an incorrect square footage or an unrecorded demolition), you can request a correction outside the standard window.
2. Prepare for the next roll: If you missed the 2026 deadline, now is the time to document your property's condition, gather comparable sales data, and consult a legal professional before the next evaluation cycle.
3. Negotiate arrears or deferred payments: For homeowners facing genuine financial hardship, the City of Montreal offers deferral programs. A legal advisor can help you navigate the application process and understand eligibility requirements.

What the Mayor's Budget Means for Landlords

Residential landlords in Montreal face a compounded challenge. Not only do property tax increases raise their own costs, but rent increases in Quebec are subject to Tribunal administratif du logement (TAL) guidelines. Landlords cannot simply pass every cost increase directly to tenants without following the TAL's calculation formula.

If property taxes rise significantly, landlords may be entitled to a larger permitted rent increase — but only if they follow the proper legal process and document their actual costs. Attempting to raise rents outside the TAL framework exposes landlords to formal complaints and potential orders to reimburse tenants.

Taking Action Before It Costs You More

Whether you are a homeowner concerned about your assessment, a landlord navigating rising costs, or a first-time buyer wondering how Montreal's 2026 budget affects your purchase decision, the legal landscape around property taxation in Quebec is surprisingly navigable — with the right guidance.

Mayor Martinez Ferrada's budget reflects the real fiscal pressures of managing a major Canadian city. But fiscal pressure on city hall does not mean homeowners have no recourse. Understanding your rights — and the deadlines attached to them — is the first step.

If you are unsure whether your property assessment is accurate, or if you have questions about your legal rights as a residential property owner in Montreal, consulting a qualified legal professional who specializes in municipal or real estate law is a smart investment before the next evaluation cycle arrives.

This article provides general legal information for educational purposes. It does not constitute legal advice. Consult a licensed lawyer in Quebec for guidance specific to your situation.