A tenant in Brampton needed to break their lease four months early. New job, new city, no choice. Their landlord's response was one sentence: "No subletting." End of discussion, they thought — until they found out the law says otherwise.

This question shows up on Ontario rental forums every week: can my landlord refuse a sublet? It's one of the most misunderstood rules in the Residential Tenancies Act, and both sides routinely get it wrong.

The one-line version

In Ontario, your landlord cannot refuse a sublet without a real reason. They must give consent, and they can only withhold it for reasonable grounds — like the proposed subtenant having terrible credit or a history of damaging rentals. "I don't feel like it" is not a legal reason.

Sublet vs. assignment: they're not the same thing

Most people use these words interchangeably. The law doesn't, and the difference matters:

  • Subletting (RTA section 97): someone temporarily occupies your unit. You stay on the lease and stay responsible to the landlord — and you can come back. Think: a four-month work placement.
  • Assignment (RTA section 95): you hand the entire tenancy to someone else and walk away permanently. The new person steps into your lease on the same terms from the assignment date.

If you're leaving for good, assignment is the cleaner exit. If you're coming back, it's a sublet.

What the law actually requires

You need your landlord's consent in writing. Both subletting and assignment require it — you can't just hand your keys to a friend and call it done.

But consent can't be withheld arbitrarily. Section 97(2) says a landlord "shall not arbitrarily or unreasonably withhold consent" to a specific proposed subtenant. A landlord is allowed to screen the proposed subtenant like any new applicant — credit, references, employment. Refusing a candidate who failed that screening is reasonable. Refusing without any screening at all, just because it's easier? That's exactly the refusal the law was written to stop.

Fees are capped, hard. Section 97(3) limits the landlord to "reasonable out-of-pocket expenses incurred in giving consent." A credit-check fee plus an hour of admin time — fine. A $500 "sublet administration fee" invented on the spot — not lawful.

The rule landlords hate (and tenants should know)

Here's the part that flips the power dynamic. For assignments specifically, the Act sets a clock: ask your landlord for consent, and they have seven days to respond. Refuse outright — or just ghost you — and you can end your tenancy on 30 days' notice, even mid-fixed-term (sections 95(4) and 96, via Form N9).

Read that again. A landlord who blanket-refuses an assignment hands the tenant a legal early exit on 30 days' notice. The "no assignments" policy is, functionally, a self-destruct button for fixed-term leases: "no" in principle means the tenant walks out 30 days later, with no further rent owed.

One nuance: a landlord who refuses in principle can't be forced — the tenant's remedy is the N9 early-termination route. But if the landlord agrees in principle and then unreasonably rejects the specific person you proposed, file Form A2 with the Landlord and Tenant Board, which can authorize the assignment or sublet, end your tenancy, or grant a rent abatement.

If you're a tenant who needs out

  1. Put everything in writing. Email or text, not a phone call. Your request, the proposed subtenant's name and contact details, the dates. Paper trails decide these cases.
  2. Propose a strong candidate. Someone who would pass a normal application — employed, decent credit, clean rental history. The harder the landlord's refusal looks, the stronger your position.
  3. Know the clock. Seven days for an assignment response. If the answer is a flat "no" to any assignment, remember the 30-day N9 exit — you must give that notice within 30 days of making the request.
  4. Don't sublet secretly. An unauthorized sublet gives the landlord their own remedy — they can apply to end your tenancy, and there are strict timelines on both sides. Do it in the open.

If you're a landlord

You're allowed to say no — but only to the person, and only for a reason. Screen every proposed subtenant like a new applicant, keep your criteria consistent, and charge only your actual out-of-pocket costs for processing consent. And think hard before a blanket assignment refusal: "no" in principle means the tenant leaves on 30 days' notice with zero penalty — a far worse outcome than a well-screened replacement paying the same rent.

Landlords who handle this well treat it as a free tenant-placement: the tenant finds a qualified replacement, the landlord screens and consents, rent keeps flowing. Everyone stays whole.

Sources

  • Residential Tenancies Act, 2006, s.95 (assignment), s.96 (notice on refused assignment), s.97 (subletting): ontario.ca/laws/statute/06r17
  • LTB Form A2 instructions — Application about a Sublet or an Assignment: tribunalsontario.ca
  • "Subletting and Lease Assignment in Ontario: Tenant Rights Explained": tenantrights.ca
  • "Unauthorized Occupants, Assignments, and Subletting: Understanding Ontario's Complex Tenancy Transfer Rules": rentzen.ca
  • "Guide to Subletting in Ontario for Renters and Landlords": johnson-team.com