Ajax property tax is calculated by multiplying your MPAC assessed value by a combined rate made up of three parts: a municipal rate set by Ajax Council, a regional rate set by Durham Region, and an education rate set by the Province of Ontario.1Town of Ajax. Property Taxes The town collects the full amount in four installments across the year, and penalties for missing a due date add up fast.
How Your Bill Is Calculated
Every bill starts with the assessed value that the Municipal Property Assessment Corporation (MPAC) assigns to your property.2Town of Ajax. Property Tax Calculator One thing to know up front: Ontario postponed its planned reassessment during the pandemic, and assessments for the 2026 tax year are still based on January 1, 2016 market values.3MPAC. The Assessment Cycle Your assessed value may look nothing like what your home would sell for today.
Each year, Ajax Council, Durham Region, and the province set their respective rates during their budget processes, and the three are combined into a single total rate applied to your assessment.1Town of Ajax. Property Taxes A home assessed at $500,000 at a combined rate of roughly 1.1% would owe about $5,500 for the year. The town publishes current rates and an online calculator that estimates your bill from your roll number or assessed value.2Town of Ajax. Property Tax Calculator
The regional share is typically the largest slice, followed by the municipal portion, with education smallest. Proportions can shift slightly year to year, but the three-part structure is constant.
When Property Tax Is Due in 2026
Ajax bills in two rounds. The interim bill is mailed in late January and is based on 50% of the previous year’s taxes.4Town of Ajax. Understanding Your Property Tax Bill The final bill goes out in late May, after council approves the new budget and the province sets the education rate, reflecting the current year’s totals.
For 2026, the four installment due dates are:5Town of Ajax. Property Taxes
- February 27 (interim)
- April 24 (interim)
- June 26 (final)
- September 25 (final)
Bills are mailed to the address on file. If you’ve just bought your home, confirm the next due date with your lawyer or the town’s tax office. Penalties still apply after an ownership change, and the town does not waive them.6Town of Ajax. Change of Ownership and Newly Constructed Homes
How To Pay
Pre-Authorized Payment Plans
The town’s Pre-Authorized Payment (PAP) plan withdraws tax amounts directly from your bank account. You can choose from five options:7Town of Ajax. Pre-Authorized Tax Payment Plan Terms and Conditions
- Plan A spreads residential taxes across 12 monthly withdrawals on the 15th, January through December.
- Plan B withdraws the full installment amount on each of the four due dates.
- Plan C is for accounts in arrears, with monthly withdrawals on the 15th; penalty and interest continue until the account is current.
- Plan D is the same monthly structure as Plan A for commercial or industrial properties.
- Plan E covers newly constructed homes or buildings without a full assessment yet.
To enroll, submit the application form with a void cheque or have your bank complete the banking section. You can join Plans A, B, or D at any point in the year if your taxes are up to date; if there’s a balance owing, Plan C is your only option until you catch up. Two rejected withdrawals in the same calendar year will cancel your enrollment and send your account back to standard installment billing.
Other Ways To Pay
You can pay through online or telephone banking at most Canadian financial institutions by adding the Town of Ajax as a payee and using your 19-digit roll number. Credit card payments go through a third-party provider, PaySimply, which adds a convenience fee.8Town of Ajax. Pay Property Tax Cheques can be mailed to town hall or dropped in the secure drop box at 65 Harwood Avenue South. If your taxes are rolled into your mortgage, your lender pays the town directly; confirm the arrangement and make sure your mortgage company has current billing information.
Late Payment Penalties
Miss a due date and the town adds a penalty of 1.25% on the first business day of each month that the balance remains unpaid.9Town of Ajax. Pay Property Tax – Section: Late Payments That compounds. A $3,000 unpaid balance accumulates roughly $450 in penalties over a year. Partial payments are applied first to outstanding interest and then to the oldest unpaid taxes, so a partial payment won’t stop new penalties on what’s left.
Penalties apply regardless of the reason for the delay, including ownership changes, mail issues, or mortgage company errors.6Town of Ajax. Change of Ownership and Newly Constructed Homes The town does not waive them.
Rebates and Relief Programs
Ajax offers a property tax rebate for low-income seniors and low-income persons with disabilities. Seniors generally need to be receiving the federal Guaranteed Income Supplement, and persons with disabilities generally need to be receiving benefits under the Ontario Disability Support Program. The annual deadline typically falls in late February or early March. Forms are available from the town’s finance department or on the official website.
Registered charities occupying commercial or industrial property in Ajax can apply for a rebate equal to 40% of the property taxes paid by the charity.10Town of Ajax. Application for Property Tax Rebate The charity must hold registered status and provide a landlord or owner declaration. The rebate is authorized under Section 361 of the Ontario Municipal Act.
Appealing Your Assessment
If you think MPAC overvalued your property, start with a free Request for Reconsideration (RfR) filed with MPAC directly, either online through the AboutMyProperty portal or by mailing a paper form.11MPAC. How To File a Request for Reconsideration The deadline is printed on your Property Assessment Notice.
If MPAC’s response doesn’t satisfy you, you have 90 days from the notice of the RfR outcome to escalate to the Assessment Review Board, an independent tribunal. The filing fee for residential properties is $132.50 per roll number.12Tribunals Ontario. Filing an Appeal Because assessments remain frozen at 2016 values, successful appeals usually turn on showing the 2016 valuation was wrong against comparable sales from that time, not that today’s market differs.
What Happens If You Don’t Pay
Unpaid property taxes don’t just build up penalties. Under Ontario’s Municipal Act, if taxes remain unpaid for two or more years, the municipality can register a tax arrears certificate against your property’s title.13Ontario.ca. O. Reg. 181/03 Municipal Tax Sales Rules Once that happens, you typically have one year to pay the full cancellation price (outstanding taxes, penalties, interest, and administrative costs) before the town can sell your property through a public tender process.14Town of Ajax. Sale of Land by Public Tender Ajax has run these sales before. If you’re falling behind, contact the tax office early; enrolling in Plan C is a far better outcome than losing the property.