Rent increases can be stressful for renters. This guide explains how rent increases work in Ontario, what notice landlords must give, and when an increase is legal under the Residential Tenancies Act. You’ll learn practical steps to respond, keep clear records, and raise a dispute with the Landlord and Tenant Board if needed. The guide also shows what official documents and forms to look for, how to calculate the increase, and when special rules apply (for example, for new buildings or temporary rent freezes). Whether you are signing a lease, renewing, or reviewing a notice, the information here helps tenants understand their rights and act confidently.
How rent increase rules work in Ontario
Most private residential units in Ontario are covered by the Residential Tenancies Act, 2006, which sets an annual rent increase guideline and minimum notice requirements.[1] Landlords must give written notice at least 90 days before the increase takes effect for most tenancies, and the increase can usually only be applied once every 12 months unless specific exceptions apply.[2]
When a rent increase may be illegal
An increase may be illegal if it:
- Is applied with less than the required 90 days notice
- Is charged within 12 months of the last lawful increase
- Imposes a disguised fee or charge not permitted by the lease or law
- Fails to follow special rules for exempt units or newer buildings
You can find more details about how increases are calculated and exceptions on the government pages and the Landlord and Tenant Board website.[1][2]
What to do when you receive a rent increase notice
Follow a clear, documented process so you protect your rights and preserve evidence in case you need to dispute the increase.
- Check the notice date and the effective date to confirm the 90-day timeline
- Calculate the new monthly amount and compare it to the guideline in effect the previous year
- Gather any lease pages, rent payment records, and previous notices as evidence
- Contact your landlord to request clarification or a written explanation if something looks wrong
If you and your landlord cannot agree, tenants in Ontario may apply to the Landlord and Tenant Board to dispute an increase or seek an order that a notice is invalid.[2] For general tenant rights in Ontario, see the official provincial fact overview.
For a plain-language walk-through of rent increases, you may also read Understanding Rent Increases: What Tenants Need to Know for practical tenant-focused examples. For broader rights information specific to this province, see Tenant Rights and Landlord Rights in Ontario.
If you are thinking about moving because of an increase, consider available listings or start a local search tool like Find rental homes across Canada on Houseme to compare market rates.
FAQ
- Can my landlord increase rent at any time?
- No. Landlords must follow timing rules and the annual guideline for most rental units; most increases require 90 days written notice and can only occur once every 12 months.
- What if my rent increase is higher than the guideline?
- Landlords can apply to the Landlord and Tenant Board for approval of increases above the guideline for certain capital expenditures or renovations; tenants have the right to dispute such applications at the Board.
- How do I challenge an illegal rent increase?
- Gather written evidence (notices, receipts, lease), try to resolve the issue with your landlord, and if needed file an application with the Landlord and Tenant Board to have the increase reviewed.
How-To
- Read the rent increase notice and note the date it was served and the effective date
- Calculate the new rent and confirm whether it follows the annual guideline or states a lawful reason for a higher increase
- Collect supporting documents: lease, payment records, previous notices, and any written communications
- Contact your landlord in writing to ask questions or request a correction if the notice seems wrong
- If you cannot resolve the issue, apply to the Landlord and Tenant Board and include your evidence
- Attend any scheduled hearing, present your records, and follow the Board’s directions
Help and Support / Resources
- Landlord and Tenant Board - Tribunals Ontario
- Ontario government: Rent increase rules and notices
- Residential Tenancies Act, 2006 (e-Laws)
