The T6 Tenant Application About Maintenance is how Ontario tenants hold landlords accountable when a rental unit or residential complex falls into disrepair. Leaks, mold, broken appliances, pest infestations, heating failures, and violations of municipal property standards all fall within the T6's scope.
Landlords have a legal duty under the Residential Tenancies Act to maintain rental units in a good state of repair and fit for habitation. When they fail, the T6 gives tenants a path to rent abatements, repair orders, compensation for damaged belongings, and reimbursement for out-of-pocket expenses. This guide walks through the form section by section, based on the official T6 instructions and LTB Interpretation Guideline 5 on maintenance obligations.
When to Use the T6 Application
File a T6 when your landlord has:
- Failed to repair or maintain the rental unit or residential complex
- Failed to comply with health, safety, housing, or maintenance standards
Both current and former tenants may apply.
The One-Year Limitation Period
You must file within one year of when the problem occurred. If the problem has been fixed, you must apply within one year of the date it was fixed.
For ongoing problems — a leak that started two years ago but was never properly repaired — the limitation period is more complex. Ongoing disrepair may allow claims for conduct that continues within the filing window, but you should file promptly rather than waiting for conditions to worsen.
T6 vs. T2: Know the Difference
Maintenance failures belong in the T6. Landlord conduct — harassment, illegal entry, lock changes — belongs in the T2.
If your furnace is broken because the landlord will not call a technician, that is a T6 maintenance claim. If the landlord deliberately shut off your heat to pressure you to leave, that may also support a T2 claim for vital services interference. When both apply, you may file separate applications, but do not combine them on one form.
How to File
Submit through the Tribunals Ontario Portal or by mail to the nearest LTB office. Include:
- The completed T6 application
- The application fee
Unlike landlord applications, you do not need to serve the T6 on your landlord — the LTB handles service after accepting your filing.
Part-by-Part Instructions
Part 1: General Information
Enter the complete rental unit address, your name, and the landlord's contact details. Use a Schedule of Parties if there are additional tenants or landlords.
Answer whether you still live in the unit. If you moved out, provide your move-out date — former tenants may still claim for problems that occurred during their tenancy.
Disclose any related unresolved LTB applications.
Part 2: Reasons for Your Application
Describe the maintenance problem in detail. Your narrative should cover:
- What the problem is (e.g., bathroom ceiling leak, broken stove burner, mold in closet)
- When it started — exact or approximate dates
- Whether the problem is ongoing or was recently fixed (and when)
- Who or what may have caused the problem, if known
- When you first told the landlord about the problem
This last point is critical. The date you informed the landlord establishes when their duty to act began. Without it, the LTB cannot assess whether the landlord responded within a reasonable time.
Example of a strong description:
On approximately January 15, 2026, I noticed water staining on the bathroom ceiling. I emailed the property manager on January 16, 2026, and followed up by phone on January 22. As of the date of this application, the leak has not been repaired and the stain has grown. I believe the source is the unit above mine.
Example of a weak description:
The apartment has maintenance problems and the landlord won't fix anything.
Part 3: Remedies
The T6 offers nine possible remedies. Shade every box that applies and explain your requested amounts.
Remedy 1: Rent Abatement
A rent abatement reduces your rent obligation for the period the problem affected your use of the unit. You must state:
- The dollar amount you are requesting
- Your current rent and payment frequency
- How you calculated the abatement
Abatements are typically expressed as a percentage of rent reflecting the severity and duration of the problem. A minor issue affecting one room for two weeks warrants a smaller abatement than a unit-wide heating failure through an Ontario winter.
Remedy 2: Compensation for Damaged Property
If the landlord's failure to maintain caused damage to your belongings — furniture ruined by a leak, electronics destroyed by a flood — you may claim repair or replacement costs. Describe each damaged item, whether it can be repaired, and how you calculated the amount.
Remedy 3: Out-of-Pocket Expenses
Claim reasonable expenses you paid because of the disrepair: hotel costs when the unit was uninhabitable, meals when you could not cook, laundry costs when the washer broke, or pest control you paid for when the landlord did not act.
Provide receipts and explain the connection between the expense and the maintenance failure.
Remedy 4: Reimbursement for Repairs You Made
If you repaired the problem yourself because the landlord would not, you may seek authorization for the work and reimbursement. Describe what you did, what it cost, and attach receipts.
Remedy 5: Authorization for Future Repairs
If you plan to hire someone to fix the problem and want the LTB to order the landlord to reimburse you, describe the proposed work and estimated cost.
Remedy 6: Order the Landlord to Do Repairs
This is the most common remedy alongside rent abatement. Describe specifically what work you want the landlord to complete — "fix the bathroom ceiling leak and repaint affected areas," not simply "do repairs."
Remedy 7: Freeze Rent Increases
You may ask the LTB to prevent rent increases until serious maintenance problems are resolved.
Remedy 8: End the Tenancy
If conditions are intolerable and you want to leave, indicate your preferred termination date. Be aware that if the LTB grants this remedy and you do not move out by the ordered date, your landlord can enforce the order through the Sheriff.
Remedy 9: Other Remedies
Use this for any additional order you believe is appropriate.
The LTB maximum is $50,000 per application.
Part 4: Signature
Sign as the tenant or have your representative sign. Pay the filing fee or submit a fee waiver application if eligible.
Building a Strong T6 Application
Notify Your Landlord in Writing
Before filing, give your landlord written notice of the problem and a reasonable opportunity to fix it. Save copies of every email, text, letter, and work order. Written notice creates a clear record of when the landlord's duty to act began.
Photograph and Document the Problem
Take dated photos and videos showing the disrepair from multiple angles. If conditions change over time, photograph at regular intervals. Photos are among the most persuasive evidence at maintenance hearings.
Obtain Independent Evidence When Possible
Reports from municipal property standards officers, public health inspectors, or licensed contractors carry significant weight. If you contacted your municipality about by-law violations, include the inspection report.
Keep Receipts for All Expenses
Every out-of-pocket expense you claim must be supported by documentation. Organize receipts chronologically and link each expense to a specific maintenance failure.
Do Not Exaggerate Remedies
Requesting a 100% rent abatement for a minor issue that was fixed within days will undermine your credibility on legitimate claims. Match your requested remedies to the actual severity and duration of the problem.
Common Mistakes That Weaken T6 Applications
Filing for Problems Already Fixed Without Claiming Promptly
If the landlord repaired the issue, you still have one year from the fix date to claim abatement or expenses — but waiting reduces the amount you can reasonably request and makes evidence harder to gather.
No Record of When You Notified the Landlord
Without a documented notification date, the LTB cannot determine whether the landlord's response was unreasonably delayed.
Claiming for Normal Wear and Tear
Landlords are not responsible for cosmetic aging or minor wear. Focus on conditions that violate maintenance standards or render the unit unfit for habitation.
Mixing Harassment Claims Into the T6
If the landlord's response to your repair requests involved harassment or illegal entry, file a separate T2. Keep each application focused on its proper category.
Living With Fixable Problems Without Mitigating
The LTB expects tenants to take reasonable steps to minimize losses. If a problem could have been addressed quickly and you waited months without follow-up, your abatement may be reduced.
Failing to Attend the Hearing
Non-attendance results in dismissal. If you cannot attend, contact the LTB to request an adjournment as early as possible.
After You File
The LTB serves your landlord and schedules a hearing. Before the hearing:
- Organize photos, correspondence, and receipts chronologically
- Prepare to testify about when you noticed the problem and when you reported it
- Be ready to describe how the disrepair affected your daily life
- Review any evidence the landlord submits in response
At the hearing, the member may order the landlord to complete repairs, grant a rent abatement, award compensation for expenses or damaged property, impose fines, or dismiss claims that are not supported by evidence.
If the landlord fails to comply with a repair order, further enforcement options may be available.
When to Get Professional Help
Maintenance cases often involve technical questions — what constitutes a reasonable repair timeline, how to calculate abatements, and whether conditions violate property standards. Professional guidance can help you frame your claims, organize evidence, and present a compelling case.
RentZen connects Ontario tenants with paralegals experienced in T6 maintenance applications. Find qualified help at /paralegals, and explore outcomes from similar maintenance cases in our /case-study collection.
Conclusion
The T6 gives tenants a structured way to demand the safe, habitable housing Ontario law guarantees. Success depends on clear documentation: dated photos, written notice to the landlord, specific descriptions of each problem, and realistic remedy requests backed by calculations.
Do not wait until conditions become unbearable. Notify your landlord in writing, document the response, and file before the one-year limitation expires. A well-prepared T6 application is often the catalyst that finally gets repairs done.
