London Property Tax Assessment - City Bylaw Guide

Taxation and Finance Ontario 4 Minutes Read · published February 12, 2026 Flag of Ontario

London, Ontario homeowners should understand how property assessments interact with municipal bylaws and the city tax billing process. The assessment determines your property’s assessed value, which the City of London uses with municipal tax rates to calculate your annual property tax bill. Assessments are prepared by the provincial assessment authority and can be reviewed or appealed; the City is responsible for tax billing, collection, and enforcement. This guide explains the typical assessment timeline, who enforces tax and bylaw obligations, how to request a review or appeal an assessment, payment and delinquency pathways, and practical steps to protect your rights as a homeowner. Use the official resources cited to start any formal request or payment action.

Check your MPAC assessment notice and compare details to similar properties before filing a review.

How the assessment process works

Property assessments for Ontario are completed by the provincial assessment authority and provide the value base for municipal taxation. In London the City issues tax bills using the assessed value multiplied by the municipal tax rate; assessments do not themselves set the tax rate. Property owners receive assessment notices, can request information or a reconsideration, and may escalate to a formal appeal where available. For official guidance on assessment notices and review steps, consult the provincial assessment authority and the City of London tax pages MPAC[2] and City of London[1].

Penalties & Enforcement

The City of London administers tax billing, collections, late-payment charges, and enforcement actions under municipal authority. Specific monetary penalty rates and tax sale procedures are handled by the City; if a precise penalty amount or fine schedule is required but not shown on the City page, this guide will note that the figure is not specified on the cited page and direct you to the official contact for confirmation[1].

  • Late payment interest or penalty: not specified on the cited page; contact City of London Revenue Services for current rates.
  • Escalation for unpaid taxes: continuing arrears may lead to collection notices, tax registration or sale — specific timelines and thresholds are not specified on the cited page.
  • Non-monetary sanctions: the City may place liens on property or register tax arrears; other orders or remedies depend on municipal procedures.
  • Enforcer and contact: City of London Revenue Services and By-law Enforcement handle billing and bylaw complaints; use the City contact pages for filing complaints or inquiries.
If you receive a notice of tax arrears act quickly to confirm amounts and payment options with the City.

Appeals, time limits and defences

Assessment reviews and appeals follow a set administrative path. Initial review is typically sought through the provincial assessment authority’s review process; further appeal may be available to an assessment tribunal or board. Time limits for requesting reconsideration or filing a formal appeal are specified by the assessment authority and tribunal rules — consult the provincial assessment authority for exact deadlines and the City for payment-related deadlines to avoid penalties[2]. Common defences include demonstrating factual errors in the property description, incorrect comparables, or errors in assessment calculations. Permits, variances, or approved changes may affect future assessments but do not automatically change prior notices.

Applications & Forms

Request for Reconsideration / review form: check the provincial assessment authority website for the correct form and submission method; if no specific City form is required for billing inquiries, contact City Revenue Services directly.

Common violations and typical outcomes

  • Failure to pay property taxes: leads to interest, collection steps, and possible liens; exact monetary penalties are not specified on the cited municipal page.
  • Misinformation on assessment submissions: can result in denial of the review; correct documentation improves outcomes.
  • Late or incomplete appeal submissions: may be dismissed for missing deadlines per the assessment authority’s rules.

Action steps for homeowners

  • Review your assessment notice immediately upon receipt and compare to similar properties.
  • If you believe the assessment is incorrect, gather evidence (photos, comparables, permits) and submit a formal review request to the provincial assessment authority within their stated time limits.
  • Pay taxes by the City’s stated deadlines to avoid late charges; if disputing an assessment, still confirm payment requirements with Revenue Services to prevent enforcement action.
  • If an appeal escalates to a tribunal, prepare documentation, observe hearing schedules, and consider professional representation if needed.
Document every contact with MPAC and the City and keep receipts for payments and submissions.

FAQ

How do I find my property assessment notice?
Your assessment notice is mailed by the provincial assessment authority; you can also view details online via the provincial assessment authority’s portal and contact MPAC for copies or questions.
Can I appeal my assessment and still pay taxes?
Yes; appeals relate to assessed value and typically do not excuse payment of municipal taxes — check payment options and deadlines with the City to avoid penalties.
Who should I contact about a tax bill I believe is wrong?
Contact City of London Revenue Services for billing questions and the provincial assessment authority for assessment questions; begin with the agency that issued the notice or bill.

How-To

  1. Obtain your assessment notice and read the property description, assessed value, and relevant dates.
  2. Collect evidence: recent sales of similar properties, photos, building permits, and documents showing errors.
  3. Submit a formal review or Request for Reconsideration to the provincial assessment authority per their instructions; include supporting documents.
  4. If the review is unsatisfactory, follow the assessment tribunal’s rules to file a formal appeal within applicable time limits.
  5. Maintain payment or arrange payment plans with the City to avoid collection while pursuing assessment remedies.

Key Takeaways

  • Assessment sets value; the City applies tax rates to generate the bill.
  • Contact MPAC for assessments and City Revenue Services for billing and enforcement.
  • Act quickly: follow review and appeal deadlines and confirm payment timelines to avoid penalties.

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