The amount of property tax owing on your land and/or building is the result of a calculation based on four factors:

  • the market value assessment of your property
  • the tax class into which your property falls
  • the tax rate for that class (set annually by your City Council)
  • the tax rate for the Education (school support) portion of that class (set annually by the Province of Ontario)

Property tax, in the City of St. Thomas is generally billed twice a year. There are four due dates, in February, April, July and October, with a grace period until the last business day of each month.  Final due dates for 2018 Taxes are July 25th and October 25th.

The amount owing in February and April is charged on the Interim Billing. The Interim billing is an amount equal to 50% of the previous year's property tax.

The amount owing in July and October is charged on the Final Billing. This Final Billing reflects the new tax rate determined by City Council in support of its annual budget, less the amount billed on the Interim. "Please retain this final bill for income tax purposes. Reprints may be obtained by the property owner and will be subject to a $5.00 fee."

A Supplementary (or Additional) tax bill may be issued as we receive information that changes the assessed value or the tax class of a property. The most common example of this is the completed building of a new home. The taxes billed prior to the building of the home are generally for the land only. When the home is complete, and we are advised of the assessed value, a ‘supplementary' tax bill will be created to reflect the amount of taxes due for the ‘house' portion of the property. A supplementary tax bill is usually due in one installment, 21 days after the generation of the bill. Future tax bills will be issued as above.

2018 Property Tax Information

Previous Year Tax Rates


2017 Tax Rates

2016 Tax Rates

2015 Tax Rates

2014 Tax Rates

2013 Tax Rates

2012 Tax Rates

Payment Methods


There are several ways to pay your property taxes:

  • in person at the Treasury Department on the main floor in City Hall. Hours of service are Monday - Friday, 8:30 a.m. to 4:30 p.m.. Payment may be made by cash, cheque or Interac.
  • A monthly pre-authorized payment plan. An amount equal to 1/12th of your annual taxes is automatically debited from your bank account on the last business day of the month.
  • A preauthorized payment plan by installment. The amount of the installment is automatically debited from your bank account on the due date.
  • At most banks and trust companies
  • At automated teller machines
  • By telebanking services
  • By mail
  • In the drop boxes located at the front and rear doors of City Hall

Please make cheques payable to the City of St. Thomas.

Late Payment


Late payment charges are calculated at the rate of 1¼ % per month (15% per annum) and will be added to the tax accounts following the due date and the 1st day of each month thereafter. In order for any payment to be considered ‘received on time', it must be received by City Hall staff no later than 4:30 p.m. on the date due. Please allow enough time to ensure your payment method reaches the appropriate City Hall staff by the time due.