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Suing for Return of a Deposit Outside a Residential Tenancy in Ontario Small Claims Court

Not every deposit dispute belongs at the Landlord and Tenant Board. Here's when a roommate, commercial, or purchase deposit belongs in Small Claims Court.

Litigation5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • The Landlord and Tenant Board deals specifically with residential landlord-tenant relationships.
  • - Roommate arrangements where you paid a deposit to another individual occupant, not a landlord, and there's no residential tenancy between you and that person.
  • Small Claims Court's monetary jurisdiction comfortably covers the overwhelming majority of deposit disputes — from a few hundred dollars between roommates to a substantial commercial or…

Someone is holding onto a deposit that belongs to you, and they won't give it back. If your instinct is to think "isn't that a Landlord and Tenant Board thing?" — sometimes, but often not. A lot of deposit disputes fall outside residential tenancy law entirely, and suing for deposit return in those cases means going to Small Claims Court instead.

Knowing which forum applies matters, because filing in the wrong one wastes time you don't need to lose.

Not Every Deposit Dispute Involves a Landlord and a Tenant

The Landlord and Tenant Board deals specifically with residential landlord-tenant relationships. A lot of real-world deposit disputes simply don't fit that description, even though they involve rent, a room, or a shared space. When the relationship isn't a residential tenancy in the first place, the dispute generally belongs in the regular civil court system — for most amounts, that means Small Claims Court.

When a Deposit Dispute Typically Belongs in Small Claims Court

A Quick Comparison

Landlord and Tenant BoardSmall Claims Court
HandlesResidential landlord-tenant relationshipsGeneral civil money disputes, including most deposit claims outside that relationship
ExampleRent deposit held by your actual landlordDeposit paid to a roommate, contractor, or business
Dollar range it comfortably coversSet by its own rulesUp to Small Claims Court's monetary jurisdiction, currently $50,000 (verify the current figure before relying on it)

Small Claims Court's monetary jurisdiction comfortably covers the overwhelming majority of deposit disputes — from a few hundred dollars between roommates to a substantial commercial or purchase deposit.

What You Need to Prove

  1. A deposit was actually paid — and how much.
  2. The terms it was paid under — what it was for, and what was supposed to happen with it.
  3. A breach of those terms — the deposit wasn't returned when it should have been, or was kept without a valid reason.
  4. The amount you're owed — ideally tied directly back to the deposit paid.

Building Your Evidence

Starting the Claim

Small Claims Court claims start with a Plaintiff's Claim, along with a filing fee that's set by regulation and adjusted periodically (fees for a Small Claims filing vary depending on how frequently the person filing uses that court office — verify the current fee before you file). Once the other side is served, they have a set window to respond; if they don't, you may be able to move for default judgment without a full hearing.

Frequently asked questions

Is a roommate legally a "tenant" I can only pursue at the Landlord and Tenant Board?

Not necessarily. If your arrangement wasn't a residential tenancy between a landlord and tenant — for example, you both occupied the space as co-tenants or the deposit went to another occupant rather than a landlord — the dispute often belongs in Small Claims Court instead.

What if our agreement was only verbal, with no written lease or contract?

A verbal agreement can still support a claim. It's harder to prove without documentation, so gather whatever evidence you have — texts, e-transfer records, witnesses — to support what was actually agreed.

Can I sue for a commercial lease deposit in Small Claims Court?

Generally yes, since commercial tenancies fall outside residential tenancy law and are handled through the regular civil court system, subject to Small Claims Court's monetary jurisdiction for the amount involved.

What if the other side says they kept the deposit to cover damage or unfinished work?

That becomes a factual dispute the court will need to resolve — you'll want evidence of the condition of the item or space, and any documentation supporting (or contradicting) the claimed damage or deficiency.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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