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Property tax bills, payment plans and due dates in Ajax
Ajax, Ontario, Canada
Property tax bills, payment plans and due dates in Ajax. Ajax’s 2026 property-tax instalments were due February 27, April 24, June 26 and September 25.
Key information
Ajax’s 2026 property-tax instalments were due February 27, April 24, June 26 and September 25. Pay using the 15-digit roll number. Options include bank payment, pre-authorized withdrawals, cheque and the town’s third-party online payment service. Late balances receive a 1.25% monthly penalty under the published town rules.
On this page
Key facts and next steps
| Question | Answer |
|---|---|
| What were Ajax's four 2026 tax due dates? | The interim instalments were February 27 and April 24. Final instalments were June 26 and September 25. All four had passed at this October 14 review; use the next issued bill for future instalment dates rather than assuming the same weekdays next year. |
| Can I set up automatic withdrawals? | The town offers monthly and four-times-per-year pre-authorized plans. Submit the application with a void cheque or direct-withdrawal form. The application, not an ordinary bank bill payment, sets up the recurring municipal plan. |
| Can I mail a postdated tax cheque? | Yes, the tax page permits cheques dated for the corresponding instalment due date, payable to the Town of Ajax. Mail to the Tax Department at 65 Harwood Avenue South, Ajax, ON L1S 2H9 well before the deadline. |
Sources: Property Tax Services · Visit Property Tax Portal
Bills and payment identifiers
What were Ajax's four 2026 tax due dates?
The interim instalments were February 27 and April 24. Final instalments were June 26 and September 25. All four had passed at this October 14 review; use the next issued bill for future instalment dates rather than assuming the same weekdays next year.
Source: Property Tax Services
Why do interim and final bills differ?
Interim bills issued in January are based on 50% of the previous year's annualized taxes. Final bills mailed in May use the new tax rates and updated assessments, with the interim amount taken into account.
Source: Property Tax Services
Which number do I use for payment?
Use the 15-digit property roll number. If it is missing, contact the Tax Section. Banks use different payee labels, so search for Ajax taxes and confirm the correct municipal tax payee rather than a utility or other account.
Source: Property Tax Services
Sources: Property Tax Services · Visit Property Tax Portal
Payment methods and processing
Can I set up automatic withdrawals?
The town offers monthly and four-times-per-year pre-authorized plans. Submit the application with a void cheque or direct-withdrawal form. The application, not an ordinary bank bill payment, sets up the recurring municipal plan.
Source: Property Tax Services
Can I pay property tax by credit card?
The town's PaySimply service accepts major cards, debit and Interac eTransfer with a convenience fee. Allow at least three business days for processing. Town Hall staff do not process credit-card tax payments at the counter or over the telephone.
Source: Property Tax Services
What payments does the Town Hall counter accept?
The published options are debit, cheque and cash up to $5,000, Monday-Friday 8:30 am-4:30 pm. The 24-hour drop box accepts cheques only. Include the roll number on the cheque and do not deposit cash.
Source: Property Tax Services
Sources: Property Tax Services · Visit Property Tax Portal
Late balances and account access
Can I mail a postdated tax cheque?
Yes, the tax page permits cheques dated for the corresponding instalment due date, payable to the Town of Ajax. Mail to the Tax Department at 65 Harwood Avenue South, Ajax, ON L1S 2H9 well before the deadline.
Source: Property Tax Services
When is a mailed payment treated as received?
The town uses the date the payment is received and posted by Finance, not the mailing date. Bank and third-party payments also need processing time. Keep confirmation and arrange payment early enough for it to reach the account.
Source: Property Tax Services
What is the late-payment penalty?
The published charge is 1.25% on the first business day of each month until payment is received. Payments first cover outstanding interest and then the oldest taxes. The town says staff cannot waive the legislated penalty.
Source: Property Tax Services
How can I view my property-tax account?
Use Ajax's Property Tax Portal, linked from the tax-service page, to access the account online. Questions about a missing roll number, bill or posted payment belong with the town's Tax Section; do not send banking details through a public community discussion.
Source: Property Tax Services
Sources: Property Tax Services · Visit Property Tax Portal
Ajax Town Hall
Ajax Town Hall
65 Harwood Avenue South, Ajax, Ontario
Municipal service counter. Published regular hours are Monday-Friday, 8:30 am-4:30 pm, excluding holidays. Individual services may need an appointment or have shorter processing hours.

Sources: Property Tax Services
Apply, book or get help
Sources: Property Tax Services · Visit Property Tax Portal