The City of Airdrie has implemented Stage 4 water restrictions due to a water main break in Calgary. Learn more
Determined on an annual basis - a property assessment is an estimate of your property's market value as of July 1 of the previous year and the property’s physical condition as of Dec. 31.
Property assessments are used to calculate your share of the total community tax fairly and equitably as provisioned by the Municipal Government Act.
Property assessment notices are mailed each January. Sending assessment notices in advance of property tax notices allows owners 60 days to review the value and details of their property and raise any concern they may have before taxes are calculated.
| Key date | What takes place? |
|---|---|
| Jan. 14, 2026 | Property assessment notices mailed |
| Jan. 22, 2026 | Notice of assessment date |
| Jan. 22 - March 23, 2026 | 60 day customer review period |
| March 23, 2026 | Assessment complaint due date |
| April/May 2026 | City Council sets tax rates |
| May 29, 2026 | Property tax notices mailed |
| June 30, 2026 | Property taxes due |
| Sept. 28, 2026 | Supplementary assessments mailed |
| Oct. 30, 2026 | Supplementary taxes due |