An N5 Notice (Notice to End your Tenancy For Interfering with Others, Damage or Overcrowding) is one of the most common—and frequently misapplied—notices under the Ontario Residential Tenancies Act (RTA).

Understanding the step-by-step statutory mechanics and critical deadlines is essential for ensuring compliance with Landlord and Tenant Board (LTB) regulations.

1. Statutory Grounds for Serving an N5

An N5 notice applies strictly to three specific situations defined under the RTA:

  • Substantial Interference (Section 64): The tenant, occupant, or guest substantially interferes with the reasonable enjoyment or lawful rights of the landlord or other tenants (e.g., persistent excessive noise, severe disturbances, aggressive behavior).
  • Property Damage (Section 62): The tenant, occupant, or guest willfully or negligently causes physical damage to the rental unit or residential complex beyond normal wear and tear.
  • Overcrowding (Section 67): The number of occupants in the unit continuously exceeds health, safety, or municipal property standards bylaws.

2. Notice Timeline & Voiding Provisions

The rules governing the N5 process depend heavily on whether it is a First Notice or a Second Notice served within a 6-month period.

ProvisionFirst N5 NoticeSecond N5 (Within 6 Months)
Notice Period (Termination Date)At least 20 days after servingAt least 14 days after serving
7-Day Cure / Voiding PeriodYes — tenant has 7 days to remedyNone — notice cannot be voided
Earliest L2 Application DateDay 8 (if not cured by tenant)Immediately upon serving notice

Key Voiding Rules for a First N5

  • 7-Day Remedy Window: For a first notice, the tenant has 7 full days from the date of service to fix the issue (e.g., stop the noise, repair/pay for damage, or reduce occupancy).
  • Automatic Void: If the tenant remedies the problem within 7 days, the notice becomes legally void. A landlord cannot file an eviction application based on a voided notice.
  • Applying to the LTB: If the tenant fails to remedy the situation within 7 days, the landlord can file an L2 Application with the LTB starting on the 8th day.

3. Step-by-Step Procedure for Landlords

  1. Document Incidents & Evidence — Prerequisite before serving. Collect objective evidence supporting the allegations (e.g., formal tenant complaints, detailed incident logs with dates/times, photos of damage, contractor repair quotes, or municipal overcrowding notices).
  2. Complete & Serve Form N5 — Mandatory LTB Form. Fill out the official N5 form with specific facts, dates, and detailed descriptions. Ensure the correct termination date is set (at least 20 days for a first notice, plus 5 additional days if served by mail). Serve the notice using a legally approved method (e.g., hand delivery, mail, or sliding under the door—posting on the door is invalid).
  3. Track the 7-Day Cure Period — First N5 only. Monitor whether the tenant takes corrective action within the 7-day window. Do not file an application during these initial 7 days. Complete a Certificate of Service (Form COS) immediately after serving.
  4. File L2 Application with the LTB — If the issue is not remedied. If the tenant fails to cure the behavior within 7 days (or if this is a second non-curable N5), submit an L2 Application via the Tribunals Ontario Portal. Include the N5 form, Certificate of Service, and supporting evidence.
    • Filing Deadline Warning: The L2 application must be filed no later than 30 days after the termination date indicated on the N5 notice.
  5. Attend Hearing & Enforce Order — Final resolution. Present witness testimony and evidence at the scheduled LTB hearing. If the Board grants an eviction order, enforce it lawfully through the Court Enforcement Office (Sheriff)—landlords cannot self-enforce or change locks independently.

4. Summary Comparison: N5 vs. N7 Notices

Landlords often confuse the standard N5 with an N7 Notice. Choosing the wrong notice can result in the LTB dismissing the eviction application.

FeatureForm N5 NoticeForm N7 Notice
Primary GroundsGeneral interference, negligent/willful damage, overcrowdingDeliberate damage, safety risks, interference in small landlord-occupied buildings
Notice Period20 days (1st notice) / 14 days (2nd notice)10 days
Voiding ProvisionYes, 7-day voiding window on 1st noticeNo voiding option
When to UseStandard tenant disturbances or property repairsSevere threats to safety or deliberate property destruction