Official Municipal Records / 2026
Five annual assessment calendars, their effective valuation dates and the commercial complaint path—kept separate from property-tax rates and brokerage market value.
Current status
As of August 27, 2026, every annual complaint deadline shown below has passed. This is a historical control record for the 2026 roll—not an invitation to file late. An amended, supplementary or other later notice can carry a different deadline; the exact notice and current municipal instructions control.
Alberta's 2026 schedule describes the provincial 60-day framework as guidance. Commercially uses city-published dates where available and does not infer a property-specific deadline from a generic calendar.
02 / Effective evidence dates
The 2026 annual assessment does not estimate August 2026 market value. These five municipalities identify July 1, 2025 as the market-value date and December 31, 2025 as the property-condition date.
Published commercial fee: $650 per non-residential roll
The 2026 annual deadline has passed. Use the exact date on any amended or supplementary notice and begin the 2027 pre-roll evidence file before the next annual notice.
Published commercial fee: $650 per non-residential complaint
The 2026 annual deadline has passed. Confirm the separate deadline on any later notice and preserve lease, occupancy, income, expense and property-condition evidence for the next roll.
Published commercial fee: Use the fee printed on the applicable notice
The 2026 annual deadline has passed. Use the controlling date and fee on any amended or supplementary notice and reconcile the next non-residential information return to the owner record.
Published commercial fee: $650 per non-residential complaint
Delivery time: 4:30 p.m. on the date printed on the notice
The 2026 annual customer review period has ended. Rely on the exact deadline printed on any later notice and prepare the next roll record before January rather than after the filing window opens.
Published commercial fee: $650 per non-residential complaint
The annual deadline has passed. Airdrie separately scheduled 2026 supplementary notices for September 28; the deadline printed on an actual supplementary notice controls that file.
What owners can do now
Reconcile legal description, class, use, areas, age, construction, occupancy, tenancy and physical condition to source documents. Ask the municipality how an owner-authorized correction is handled outside the annual complaint window.
Open the complaint framework →Preserve leases, rent roll, income, expenses, vacancy, plans, photographs, repairs and comparable evidence by the applicable valuation and condition dates. Keep appraisal, tax-agent and brokerage work labelled by purpose.
Organize assessment evidence →A municipal assessment allocates tax burden. A brokerage market review supports a contemplated sale or leasing decision. Commercially can discuss the latter without filing, extending or advising on an assessment complaint.
Review valuation boundaries →Who, how and why
Who: Commercially Research & Editorial, with commercial review by Slav Loban.
How: Each row is transcribed from a current municipal notice, assessment page or review-board procedure and cross-checked against Alberta's 2026 guidance. Exact municipal dates take priority over calculated dates.
Why: To help commercial owners control current records and professional handoffs without confusing an annual assessment with market value, tax advice or a live right to complain.
Corrections: Email hello@commercially.ca with the municipality, roll year and primary evidence.
Separate brokerage decision
Share the commercial property, current assessment record, occupancy, owner objective and timing. Commercially can discuss a confidential sale or leasing strategy through the licensed brokerage team. Assessment, appraisal, legal and tax advice remain with the appropriately qualified professional.