In Ontario, a landlord can legally ask for a key deposit, but it must be 100% refundable and cannot exceed the actual expected replacement cost of the keys, fobs, or entry cards (usually $20 to $100 CAD). If your landlord charges a $500 CAD “key deposit” as a disguised damage deposit, it is illegal, and you can file a T1 Application with the LTB to get it back.
Renting a modern condominium in Toronto, Mississauga, or Hamilton often involves a handful of electronic fobs, garage clickers, and traditional keys. 🏢 To protect against the cost of replacing these items, landlords frequently demand a “key deposit” before handing over access to the unit. While key deposits are generally legal under the Residential Tenancies Act (RTA), many landlords use them as a loophole to collect an illegal security deposit.
The law is crystal clear: a key deposit must strictly reflect the actual, out-of-pocket cost to replace the keys if you lose them. A landlord cannot demand a $400 or $500 CAD key deposit for a standard metal key that costs $5 to cut at a local hardware store. If you are facing an exorbitant key deposit, or if your landlord refuses to give your money back when you move out, you have powerful legal tools to recover your funds.
Step-by-Step Process for Disputing a Key Deposit in Ontario
Getting your money back from a stubborn landlord requires a paper trail and a clear understanding of the Landlord and Tenant Board (LTB) procedures. 📍 Here is how you can effectively dispute an illegal key deposit.
Step 1: Verify the True Replacement Cost
Before picking a fight, assess what you were given. A standard unit door key costs about $5 CAD. A basic electronic fob might cost $25 to $50 CAD from the condo management office. A specialized garage remote might cost $75 CAD. If your landlord charged you $300 CAD for two standard metal keys, that charge is clearly illegal. Ask the condo concierge or property manager what the actual replacement cost is for your building.
Step 2: Return the Keys and Demand the Refund
On your move-out day, ensure you return all keys, fobs, and garage clickers directly to the landlord or their agent. 📦 Never leave them on the kitchen counter without proof. Hand them over in person and ask the landlord to sign a simple receipt acknowledging they received the keys. Immediately request your full deposit back via e-transfer or cheque. If they claim they are keeping it because the apartment was “dirty,” remind them that key deposits cannot be used for cleaning.
Step 3: Send a Formal Written Demand
If the landlord ignores your text messages or refuses to return the money, you must create a formal paper trail. Send an email or registered letter stating: “I returned all keys on [Date]. Under the Residential Tenancies Act, key deposits are strictly refundable. Please return my $150 CAD deposit by [Date], or I will file an application with the Landlord and Tenant Board for an illegal charge.”
Step 4: Contact the Rental Housing Enforcement Unit
Before paying for a tribunal hearing, try the free route. 📞 Contact the provincial Rental Housing Enforcement Unit (RHEU). They investigate breaches of the RTA. Once an RHEU officer calls your landlord and explains that withholding a key deposit is an offence that can result in hefty corporate fines, many landlords quickly e-transfer the money back to the tenant.
Step 5: File a T1 Application with the LTB
If the landlord still refuses, log onto the Tribunals Ontario Portal. You will need to file a T1 Application: Tenant Application for a Rebate of Money the Landlord Owes. Choose the option indicating that the landlord collected an illegal charge. Upload your lease agreement showing the key deposit amount, and any texts or emails of the landlord refusing to return it. An adjudicator will eventually order the landlord to pay you back.
How Much Does it Cost to Fight an Illegal Key Deposit?
Pursuing an illegal key fee is relatively inexpensive, but you should weigh the costs against the amount of money owed. 💰 Here are the typical costs in CAD:
- LTB Filing Fee: Filing a T1 Application online currently costs $53 CAD. You can ask the adjudicator to force the landlord to reimburse this fee if you win.
- RHEU Assistance: Filing a complaint with the government’s Rental Housing Enforcement Unit is completely free.
- Paralegal Representation: Hiring a legal professional is optional. If your key deposit is only $100, paying a paralegal $500 CAD to fight it does not make financial sense. Most tenants self-represent for simple key deposit disputes.
How Long Does the Process Take?
The timeline depends on how the landlord reacts to pressure. A well-written demand letter or a phone call from the RHEU can resolve the dispute in a matter of 7 to 14 days. However, if you are forced to file a T1 Application, the Landlord and Tenant Board is currently facing massive backlogs. As of May 2026, you could wait anywhere from 6 to 10 months just to get a hearing date.
Legal Key Deposits vs. Illegal Charges
It is important to know exactly where the line is drawn under Ontario law. ♻ Here is a comparison to help you identify an illegal fee.
| Charge Description | Legal Status in Ontario | Reasoning under the RTA |
|---|---|---|
| $50 CAD deposit for an electronic condo fob | Legal | Matches actual condo corporation replacement costs. Must be refunded. |
| $300 CAD deposit for a standard metal door key | Illegal | Far exceeds the $5 actual replacement cost. Disguised security deposit. |
| Non-refundable $25 CAD key cutting fee | Illegal | Key deposits must always be 100% refundable upon return of the key. |
| Withholding key deposit because of carpet stain | Illegal | Key deposits can strictly only be used if the key is lost or not returned. |
Frequently Asked Questions (FAQ)
What if I lost the key or fob?
If you genuinely lose the key or fob, the landlord is legally allowed to keep the deposit to cover the cost of buying a replacement. However, they cannot keep a $200 deposit if the replacement fob only cost them $50. They must refund the difference.
Do landlords have to pay interest on a key deposit?
No. Unlike the Last Month’s Rent (LMR) deposit, which accrues annual interest under the Residential Tenancies Act, a key deposit does not earn interest. You simply get the exact principal amount back when you move out.
Can I deduct the key deposit from my final rent payment?
No, this is a risky move. Your rent must be paid in full (or covered by your LMR deposit). If you unilaterally withhold $100 from your rent claiming it covers the key deposit, the landlord can serve you with an N4 eviction notice for non-payment of rent.
Is there a time limit to file my T1 Application?
Yes. Under the RTA, you have exactly one year from the date the illegal charge was collected or retained to file a T1 Application with the Landlord and Tenant Board. If you wait 13 months after moving out, your claim will be dismissed.
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