What are they?
These are the two ways to leave a lease before it ends. They are set out in Part VI (sections 95 to 104) of Ontario’s Residential Tenancies Act, 2006 (the RTA).
A sublet means the tenant lets another person (the subtenant) live in the unit for a set period and moves back in before the tenancy ends. The lease with the landlord does not change: the subtenant pays rent to the tenant, and the tenant pays the landlord.
An assignment means the tenant hands the whole lease to a new person (the assignee) and leaves for good. The new tenant takes over the same lease, the same rent and the same terms (parking, included utilities and so on).
Sublet vs. assignment
| Sublet | Assignment | |
|---|---|---|
| Does the tenant come back? | Yes, on a set date | No, the tenant leaves for good |
| Lease with the landlord | Unchanged; the tenant stays the party | The new person becomes the tenant |
| Who pays rent to whom? | Subtenant → tenant → landlord | New tenant → landlord |
| Who is responsible for problems? | The tenant, to the landlord (s. 97 (4)) | New tenant after the assignment; former tenant before it (s. 95 (8)) |
| Landlord consent | Needed; a specific subtenant cannot be refused without reason | Needed; assignment in general may be refused, but a specific person cannot be refused without reason |
| Rent | Cannot be more than the landlord’s rent (s. 134 (3)) | Same rent, same terms |
Landlord consent: how far can a refusal go?
- Both need the landlord’s consent (sections 95 (1) and 97 (1)). Section 14 of the standard lease says the same. Get the consent in writing.
- Sublet: the landlord cannot "arbitrarily or unreasonably" refuse a specific subtenant (section 97 (2)).
- Assignment, general request: if you ask "may I assign?", the landlord may refuse assignment altogether (section 95 (2)). You can then end the lease as explained below.
- Assignment, specific person: if the landlord agrees to assignment but refuses the person you bring, the refusal cannot be arbitrary or unreasonable (section 95 (5)). Reasonable screening such as a credit check or references is allowed.
- The landlord may charge only the actual out-of-pocket cost of giving consent, such as a credit check fee (sections 95 (7) and 97 (3)). An "assignment fee" is not allowed.
- Exceptions: these rules do not apply to a superintendent’s unit (section 95 (9)), and LTB guidance says tenants in public, subsidized or non-profit housing and in school-provided housing have no right to assign.
If assignment is refused or ignored: 30 days’ notice
- Ask the landlord in writing for consent to assign. Use email or text so the date is on record, and keep a copy.
- If the landlord refuses assignment outright, or does not answer within 7 days of the request (section 95 (4)), you may give a notice to end the tenancy (Form N9). You must give it within 30 days of your request.
- The termination date can be as little as 30 days after the notice, because the law uses the shorter of the normal notice period (60 days) and 30 days (section 96 (2)). For a daily or weekly tenancy it is 28 days.
- This works even in the middle of a one-year lease, and the date does not have to be the last day of a rental period. It is one of the surest legal ways to leave a fixed-term lease early.
If the landlord agrees to assignment and only refuses a specific person, this 30-day notice is not available. Then you find another person or apply to the LTB on Form A2.
If the refusal was unreasonable: LTB Form A2
If you think the landlord refused a specific subtenant or assignee arbitrarily, you can file Form A2 (Application about a Sublet or an Assignment) with the LTB (section 98 (1)). The deadline is one year after the refusal (section 98 (2)).
If the LTB finds the refusal unlawful, it can authorize the sublet or assignment, authorize another person you propose, end the tenancy, or order a rent abatement (section 98 (3)). An LTB authorization has the same effect as the landlord’s consent (section 98 (5)).
Rules for the tenant who sublets
- You cannot charge the subtenant more than the rent the landlord lawfully charges (section 134 (3) (a)). Subletting a $2,400 unit for $2,800 is illegal.
- You cannot collect a subletting fee, a "deposit", a furniture charge or any other extra money (section 134 (3) (b) and (c)). The subtenant can apply to the LTB to get it back (section 135 (3)).
- If the subtenant damages the unit or does not pay, you are responsible to the landlord (section 97 (4)). Choose carefully and sign a written sublet agreement.
- When the sublet period ends, the subtenant has no right to stay (section 97 (5)). Put your return date in the agreement.
- Letting someone live there without the landlord’s consent is an "unauthorized occupancy". The landlord can apply to the LTB within 60 days of finding out and have both you and that person evicted (section 100).
Examples
A student rents a downtown Toronto condo at $2,400 a month on a one-year lease from September 1 and must spend four months in Korea from January. She asks the landlord in writing for consent to sublet and proposes a classmate as subtenant. The landlord agrees and charges $25, the actual cost of a credit check. The subtenant pays $2,400 a month to the student, who pays the landlord. She returns on May 1 and the lease runs on to August 31.
If the same student had to move away for good because of a job, she would ask to assign. If the landlord does not answer within 7 days, she can give an N9 within 30 days of her request and leave 30 days later. If the landlord agrees to assignment, she finds a new tenant and presents them, and the landlord cannot refuse without a reasonable ground.
Easy to confuse: assignment sales
In real estate, "assignment" also means selling a pre-construction condo purchase contract to someone else before the building is finished (an assignment sale). That is a completely different transaction from assigning a lease, with developer consent and tax issues. See the "Assignment sale" entry.
When you sublet or assign a condo, the condo corporation’s declaration and rules may require tenant registration or limit short-term rentals. Check with the landlord and the property manager first.
What the law and official sources say
Quotes are copied word for word. The "In plain words" lines are our explanation, not an official translation.
Subject to subsections (2), (3) and (6), and with the consent of the landlord, a tenant may assign a rental unit to another person.In plain wordsA tenant may assign the unit to another person with the landlord’s consent, subject to the conditions in subsections (2), (3) and (6).
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
A landlord shall not arbitrarily or unreasonably refuse consent to an assignment of a rental unit to a potential assignee under clause (3) (b).In plain wordsThe landlord cannot arbitrarily or unreasonably refuse to let the tenant assign to a specific person the tenant proposes.
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
A tenant may give the landlord a notice of termination under section 96 within 30 days after the date a request is made if, (a) the tenant asks the landlord to consent to an assignment of the rental unit and the landlord refuses consent; (b) the tenant asks the landlord to consent to an assignment of the rental unit and the landlord does not respond within seven days after the request is made; …In plain wordsIf the tenant asks for consent to assign and the landlord refuses or does not answer within seven days, the tenant may give a termination notice under section 96 within 30 days of the request. Clauses (c) and (d) apply the same rule to a request naming a specific person.
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
The date for termination specified in the notice shall be at least a number of days after the date of the notice that is the lesser of the notice period otherwise required under this Act and 30 days.In plain wordsThe termination date must be at least the shorter of the usual notice period and 30 days after the notice. For a monthly tenancy (normally 60 days), that means 30 days.
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
A tenant may sublet a rental unit to another person with the consent of the landlord. … A landlord shall not arbitrarily or unreasonably withhold consent to the sublet of a rental unit to a potential subtenant.In plain wordsA tenant may sublet with the landlord’s consent, and the landlord cannot arbitrarily or unreasonably withhold consent to a specific subtenant.
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
If a tenant has sublet a rental unit to another person, (a) the tenant remains entitled to the benefits, and is liable to the landlord for the breaches, of the tenant’s obligations under the tenancy agreement or this Act during the subtenancy;In plain wordsDuring a sublet the original tenant keeps the rights under the lease and stays responsible to the landlord for any breach, including one caused by the subtenant.
Source: ontario.ca/laws/statute/06r17 · checked Oct 30, 2026
Assignment: In an assignment, the tenant transfers their right to occupy the rental unit to someone else. The new person takes the place of the tenant, and the tenancy agreement stays the same. … Sublet: A sublet occurs when the tenant moves out of the rental unit, lets another person (the ‘sub-tenant’) live there until a specified date, and can return to live in the unit before the tenancy ends.In plain wordsIn an assignment the new person takes the tenant’s place under the same lease; in a sublet the tenant lets someone live there until a set date and can come back before the tenancy ends.
Source: files.ontario.ca/mmah-guide-to-standard-lease-for-rental-housing-en-2022-04-19.pdf · checked Oct 30, 2026
Common questions
My lease says "no subletting or assignment". Does that end it?
That clause alone does not take away your right. The law allows subletting and assignment with the landlord’s consent and bars unreasonable refusal of a specific person (sections 95 (5) and 97 (2)). Lease terms against the Act are void (section 4). But doing it without consent is an unauthorized occupancy, so always ask in writing.
The landlord simply ignores my request to assign.
If there is no answer within 7 days, you may give an N9 within 30 days of your request, with a termination date 30 days after the notice (sections 95 (4) and 96 (2)). This works even during a one-year lease. Keep the dated email or text that shows when you asked.
Can I charge a bit more rent on a sublet to cover my furniture?
No. Charging more than the landlord’s rent, or any fee or furniture charge on top, is illegal (section 134 (3)). The subtenant can apply to the LTB to get it back.
Who is responsible if the subtenant does not pay?
To the landlord, the original tenant is (section 97 (4)). You would have to claim against the subtenant separately. That is why careful screening and a written sublet agreement matter.
Is assigning a lease the same as an assignment sale?
No. Assigning a lease hands your rental agreement to a new tenant. An assignment sale is selling a pre-construction condo purchase contract to another buyer. The rules, who must consent and the tax treatment are all different.
Guides that use this term
Sources checked
- Residential Tenancies Act, 2006, ss. 95–98, 100, 134–135 (e-Laws) · checked Oct 30, 2026
- LTB, How a Tenant Can End Their Tenancy (assignment section) · checked Oct 30, 2026
- Ontario Ministry of Municipal Affairs and Housing, Guide to Ontario’s standard lease (PDF, 2022-04-19), Part P · checked Oct 30, 2026
- LTB, Forms, filing and fees (Form A2) · checked Oct 30, 2026