Appeal Property Assessment in Calgary - Homeowners

Taxation and Finance Alberta 4 Minutes Read · published February 11, 2026 Flag of Alberta

Calgary, Alberta homeowners who disagree with a property assessment can seek review and, if needed, a formal appeal. This article explains the practical steps to request an informal review with City assessment staff, how to file a formal appeal with the Assessment Review Board, what evidence matters, and where to find official forms and contacts. Use the official City of Calgary resources linked here to start your case and note statutory time limits for appeals.

Start by contacting Assessment Services early to avoid missing appeal time limits.

How appeals work in Calgary

When you receive your assessment notice, the first step is an informal review with the City of Calgary Assessment Services. If you remain dissatisfied you may file a formal appeal to the independent Assessment Review Board (ARB). The ARB holds hearings and issues binding decisions on assessed values. Gather comparables, income/expense data (for rental or commercial property), photographs and inspection reports to support your case.

Penalties & Enforcement

Property assessment appeals themselves do not usually carry monetary fines; the ARB determines value adjustments rather than criminal or administrative fines. Specific monetary penalties for failing to comply with inspection requests or for providing false information are not specified on the cited City pages and must be confirmed with the enforcing department. Contact details for enforcement and appeals are shown below.

The Assessment Review Board issues binding decisions on assessed value that affect taxes, not criminal penalties.
  • Enforcer: Assessment Review Board and City of Calgary Assessment Services handle reviews and hearings; complaints begin with City Assessment Services and may proceed to the ARB. Official appeal guidance[1]
  • Appeal route: informal review with Assessment Services, then formal ARB appeal for unresolved disputes. See the ARB information for hearing procedures. Assessment Review Board info[2]
  • Time limits: exact statutory deadlines and filing timelines are set out by municipal procedure and provincial legislation; if a specific deadline is not shown on the City page it is not specified on the cited page and should be confirmed with Assessment Services.
  • Fines/fees: filing fees or fines related to assessment appeals are not specified on the cited City pages.
  • Inspection and compliance: inspectors or assessment staff may request access or records; enforcement remedies are referenced by City services but detailed sanctions are not specified on the cited pages.

Applications & Forms

The City publishes guidance and the required steps to submit an appeal; specific form names or form numbers are not consistently shown on the general guidance pages and are described on the Assessment Review Board or Assessment Services pages referenced above. If no official form is required the City page will state the filing method. Confirm submission method and any required attachments on the City pages cited.

Check the City of Calgary pages for the current appeal form and submission instructions before filing.

Preparing your appeal

Collect clear, organized evidence: recent comparable sales, income and expense statements for income properties, photographs showing condition or defects, professional appraisal or inspection reports. Provide documentation that directly disputes the valuation method or data used by the assessor.

  • Evidence: comparables, leases, receipts, appraisal reports.
  • Records: tax notices, prior assessments, correspondence with Assessment Services.
  • Representation: you may represent yourself or hire a professional (appraiser, lawyer); confirm ARB rules for representatives.

How-To

  1. Review your assessment notice and note the mailing date and assessed value.
  2. Contact City Assessment Services for an informal review to discuss data and valuation methods.
  3. If unresolved, file a formal appeal to the Assessment Review Board following City filing instructions and deadlines.
  4. Prepare and submit evidence to the ARB and attend the hearing; bring organized exhibits and witness statements.
  5. Receive the ARB decision; if necessary, review statutory options for judicial review or further recourse under applicable provincial law.
Keep copies of every document and correspondence you submit to the City or ARB.

FAQ

What is the first step to contest an assessment?
Contact City of Calgary Assessment Services for an informal review and discuss the valuation details; if still dissatisfied, file a formal appeal with the Assessment Review Board.
How long do I have to file an appeal?
Specific filing deadlines are set by municipal and provincial rules; the City guidance pages should list current timelines and any statutory limits—if not shown, the deadline is not specified on the cited City pages and you should confirm with Assessment Services.
What evidence helps reduce an assessed value?
Recent comparable sales, professional appraisals, income and expense statements for rental properties, repair or condition reports, and clear photographic evidence are commonly used.

Key Takeaways

  • Start with an informal review; acting early preserves appeal options.
  • Organize strong, document-based evidence focused on valuation errors.
  • The Assessment Review Board issues binding decisions on value that affect taxes.

Help and Support / Resources

  1. [1] City of Calgary - Appeal your property assessment
  2. [2] City of Calgary - Assessment Review Board

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