What Happens If Your Landlord Won't Return Your Rent Deposit

What a "rent deposit" actually is in Ontario

One of the most common sources of confusion for Ontario tenants is the idea of a "damage deposit" or "security deposit" that gets returned at the end of a tenancy, minus deductions for damage — this is standard in many other provinces, but it is not how Ontario law works. Under the Residential Tenancies Act, 2006 (RTA), a landlord generally cannot require a general-purpose security deposit at all. What a landlord can require is a rent deposit, which can be no more than one month's rent (or one rental period's worth, if rent is paid less often than monthly), and which must be applied specifically toward rent — typically the last rent period of the tenancy — rather than held back for potential damage. Understanding this distinction is the foundation for understanding what a landlord can and cannot legally do with money collected at move-in.

How it's supposed to be applied or returned

Because a rent deposit is specifically meant to be applied to rent, the usual and expected outcome is that it gets applied to the final rent period of the tenancy, rather than being "returned" as a separate payment after move-out, unless the tenancy ends in a way that makes that impractical. If a tenant moves out and the deposit hasn't yet been applied to a final rent period — for example, if the tenancy ends unexpectedly or the deposit exceeds what's owed for the last period — the landlord generally owes the tenant that remaining amount, plus interest, as described further below. A landlord who simply keeps the deposit and does not apply it to rent or return any excess is not following the deposit's intended purpose under the RTA.

Common disputes tenants run into

The most frequent dispute is a landlord who, after the tenant moves out, tries to keep the rent deposit (or some of it) to cover alleged damage to the unit — which generally isn't a legitimate use of a rent deposit, since the RTA has a separate framework for damage claims that doesn't involve this deposit at all. Another common issue is a landlord who simply stops responding once a tenant asks about the deposit after move-out, hoping the tenant won't pursue it further. A third involves confusion or disagreement about whether the deposit was ever properly applied to the final month's rent in the first place, especially where records on both sides are informal or incomplete. In each of these situations, the underlying issue is generally the same: money the tenant is legally entitled to is being withheld without a proper basis.

The interest your landlord owes you

A detail many tenants don't realize is that a landlord is generally required to pay annual interest on a rent deposit held over the course of a tenancy, at a rate tied to the annual guideline increase set by the province (or at least 0% in guideline years where the rate is zero, but historically it has often been a small positive percentage). This interest generally needs to be paid to the tenant annually, or credited against rent, or paid out when the deposit is finally applied or returned. It's often a modest amount in any single year, but over a longer tenancy it can add up, and it's a legal entitlement regardless of the dollar amount involved. Our security deposit interest calculator can help you estimate what you may be owed.

First steps if your deposit isn't returned

Start with a clear, written request to the landlord stating the amount of the deposit, when it was paid, how it should have been applied or returned, and asking for a response within a reasonable, specific timeframe. Reference the last month's rent and whether the deposit was actually applied to it; if it wasn't, and you're owed the deposit plus interest, say so explicitly. Keep this request factual and specific rather than accusatory — many landlords genuinely lose track of deposit obligations amid the busyness of a move-out, rather than deliberately withholding funds, and a clear written reminder sometimes resolves the issue without needing to go further. Give the landlord a reasonable amount of time to respond — generally a week or two is fair — before assuming the request has been ignored and moving to the next step.

What documentation helps most

The most useful records in a deposit dispute are proof of the original deposit payment (a receipt, bank record, or e-transfer confirmation), your lease showing the rent amount and the deposit terms, and any written communication about the deposit's return or application. If the dispute involves whether the deposit was applied to a specific month's rent, your own rent payment history for that period helps clarify what was actually paid versus what the deposit covered. Keep a simple timeline: when the deposit was paid, when the tenancy ended, when you asked for it back, and what response (if any) you received.

Applying to the LTB: the T1 application

If a written request doesn't resolve the issue, a tenant generally has the right to apply to the Landlord and Tenant Board using a T1 application, which covers a landlord's failure to properly apply or repay a rent deposit, along with related charges a landlord may have improperly collected. The LTB can order the landlord to pay the tenant the amount owed, including any unpaid interest, based on the evidence presented. As with other LTB remedies, the specific outcome depends on the facts of the individual case, and a tenant should rely on their documentation rather than assuming a particular result in advance — but a properly withheld or unapplied rent deposit is a well-established basis for this kind of claim, and tenants bring these applications successfully on a routine basis when their documentation is clear.

If you've already moved and time has passed

Tenants sometimes only realize months after moving out that a deposit was never properly applied or returned. This doesn't necessarily mean the claim is lost, but LTB applications generally need to be filed within a limitation period, so it's worth acting as soon as you realize there's an issue rather than waiting. Gather whatever records you still have access to — even incomplete records are often enough to start a claim — and consider reaching out to a community legal clinic or paralegal if you're unsure whether you're still within the window to apply or how to reconstruct the relevant history. Former roommates, a forwarding address left with the landlord, or old bank statements can sometimes fill in gaps in your own records, and it's worth checking whether your bank can retrieve older transaction history if your own records don't go back far enough.

Frequently Asked Questions

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Reviewed by Ryan J. Manilla, BA, JD

Legal Reviewer · Landlord Tenant Ontario