Property tax in Ontario is calculated by multiplying your home’s assessed value by the combined municipal and education tax rates set for the year. The municipal portion is set by your city or town based on its annual budget, and the education portion is set by the province. For 2026, the provincial education tax rate on residential property is 0.153% of assessed value.1Ontario.ca. O. Reg. 400/98 – Tax Matters – Rates for School Purposes Because the education rate is uniform province-wide, the difference between a tax bill in one municipality and another comes entirely from the municipal rate.
A quick example. A home assessed at $400,000 in a municipality where the combined rate works out to 1.1% produces an annual bill of $4,400. The education share at 0.153% accounts for $612; the remaining $3,788 goes to the municipality to fund things like roads, waste collection, fire, and police.
How MPAC Decides What Your Home Is Worth
The Municipal Property Assessment Corporation (MPAC) is an independent, not-for-profit organization that assesses and classifies every property in the province. It operates under the Municipal Property Assessment Corporation Act, 1997,2Ontario.ca. Municipal Property Assessment Corporation Act, 1997 and the Assessment Act requires all land to be valued at its “current value,” meaning what the property would reasonably sell for on the open market.3Ontario.ca. Assessment Act, R.S.O. 1990, c. A.31
When MPAC values a home, it looks at location, lot size, living area square footage, age of the structure, quality of construction, and any major renovations that show up through building permits. Those characteristics get compared against actual sales of similar homes in the same neighbourhood.
Why Your Assessment May Not Reflect Today’s Market
Ontario’s assessments are currently based on a valuation date of January 1, 2016. The province has not ordered a province-wide reassessment since then. If your area’s prices have climbed since 2016, your frozen assessment is likely holding your tax bill below what an updated valuation would produce. If your local market has softened, you may be paying tax on a value that overstates what your home is worth today. MPAC still issues updated notices when a property physically changes, such as after a renovation or new construction, but the base valuation date stays at 2016 unless the province directs otherwise.
Property Classes Matter Too
Every property is assigned to a class under the Assessment Act. Residential is the baseline, and other classes such as multi-residential, commercial, industrial, farm, and managed forests carry different tax ratios set by the municipality.4Ontario.ca. Ontario Regulation 282/98 – General Residential sits at a ratio of 1.0, and the municipality’s by-law expresses other classes as multiples of that number.5Ontario.ca. Municipal Act, 2001, S.O. 2001, c. 25 Classification is based on how the property is actually used. If a property shifts from residential to commercial use, the tax rate can jump sharply even if the assessed value is unchanged.
When Bills Come and How to Pay
Most municipalities send two bills a year. The interim bill arrives early in the year and is usually about half of the previous year’s total levy, giving the municipality operating funds while the current budget and tax rates are still being finalized. The final bill goes out once the budget is approved and the provincial education rate is set, and it reflects the full year owing minus what you paid on the interim bill.
Payment options vary by municipality. Pre-authorized monthly withdrawals, online banking, and in some cases post-dated cheques or in-person payments are common. A monthly instalment plan is often available and can be easier to manage than two large lump-sum payments.
What Happens If You Pay Late
Under the Municipal Act, a municipality can charge a 1.25% penalty the day after an instalment is due, plus 1.25% interest per month on any balance carried from a previous month.5Ontario.ca. Municipal Act, 2001, S.O. 2001, c. 25 Over a full year, an unpaid balance can accumulate roughly 15% in combined penalties and interest.
Longer-term non-payment is more serious. Once any portion of a tax bill is still owing on January 1 of the second year after it became due, the municipal treasurer can register a tax arrears certificate on the property’s title. The owner then has one year to pay the full cancellation price, which includes the original taxes plus all accumulated penalties, interest, and administrative costs. If the cancellation price is not paid, the municipality can sell the property at public auction.5Ontario.ca. Municipal Act, 2001, S.O. 2001, c. 25 Tax sales are rare, but they happen.
Challenging an Assessment You Think Is Wrong
If you believe MPAC has overvalued your property or placed it in the wrong class, you can push back. For residential property, the process has two stages, and you must complete the first before moving to the second.
Request for Reconsideration
Start by filing a Request for Reconsideration directly with MPAC.6Municipal Property Assessment Corporation. File a Request for Reconsideration for a Residential Property For residential, farm, managed forest, and conservation land properties, the deadline is 90 days from the mailing date on your notice of assessment. For commercial and other property types, the deadline is March 31 of the taxation year.7Tribunals Ontario. Extending the Time for a Request for Reconsideration You can submit supporting evidence such as interior photos showing the condition of your home or recent sale prices of comparable properties nearby.
Appeal to the Assessment Review Board
If MPAC’s reconsideration decision does not resolve the issue, or MPAC does not issue a decision within the time frame set out in the Assessment Act, you can appeal to the Assessment Review Board. The ARB is an independent tribunal that holds formal hearings and issues a binding decision.7Tribunals Ontario. Extending the Time for a Request for Reconsideration The filing fee for residential, farm, managed forest, and conservation land properties is $132.50 per roll number, with a $10 discount if you file electronically.8Tribunals Ontario. Filing an Appeal With assessments frozen at 2016 values, most residential appeals today involve properties where physical changes were made or where MPAC’s comparable sales analysis looks flawed for a specific home.
Exemptions and Relief Programs
Some property is exempt from tax altogether under the Assessment Act. The main categories are Crown land owned by the federal or provincial government, places of worship and churchyards, cemeteries and burial sites, land owned and used by public universities, colleges, and schools, and non-profit child care centres. Clergy who officiate at an exempt place of worship and live on site also receive a 50% exemption on the assessed value of their principal residence.3Ontario.ca. Assessment Act, R.S.O. 1990, c. A.31 These are narrowly drawn and apply only while the property is actively used for the qualifying purpose.
For individual homeowners and renters, two provincial programs offset property tax costs, both claimed through your income tax return.
Ontario Energy and Property Tax Credit
This credit is the property tax component of the Ontario Trillium Benefit, aimed at low- to moderate-income residents. You qualify if you lived in Ontario on December 31 of the prior year and paid rent or property tax on a principal residence during that year. You apply by completing Form ON-BEN with your income tax return, and payments are issued monthly beginning in July as part of the Ontario Trillium Benefit.9Canada Revenue Agency. Province of Ontario Renters can claim it too, since a portion of rent is treated as going toward property tax.
Ontario Senior Homeowners’ Property Tax Grant
Senior homeowners with modest incomes may qualify for this grant. For 2026, the maximum is $500 or the eligible property tax you paid for 2025, whichever is less. You must have been at least 64 years old by December 31, 2025, lived in Ontario on that date, and owned and occupied your principal residence. The grant phases out as income rises. For single individuals, it decreases by 3.33% of adjusted net income above $35,000 and reaches zero at $50,000. For couples, the phase-out begins at $45,000 in combined family income and ends at $60,000.10Canada Revenue Agency. Ontario Senior Homeowners’ Property Tax Grant (OSHPTG) Questions and Answers You apply using the same Form ON-BEN on your income tax return.