Short answer
Ontario’s 2027 rent-increase guideline is 1.9% for most rent-controlled units. A landlord cannot automatically apply it whenever desired; timing, notice and exemptions still matter.
The buyer or owner’s concern
An investor builds the purchase cash flow by increasing every tenant’s rent 1.9% on January 1, even though some tenancies began later or the required notice has not been served.
What Ontario’s official guidance says
Ontario states that 1.9% is the maximum guideline increase for most covered tenants in 2027 without Landlord and Tenant Board approval. The guideline changes annually and does not apply to every unit.
What the rule does not guarantee
The guideline does not authorize an increase before 12 months have passed or without proper written notice. It also does not apply to certain exempt units, vacant units, community housing or other excluded accommodation. A lender’s projected rent is not legal rent.
A practical Ontario example
Illustration only: A tenancy began July 1, 2026. The investor should not assume a January 2027 increase merely because a new calendar-year guideline exists. The lawful timing and notice must be checked.
Practical next steps
Underwrite the property using current lawful rent first. Record each tenancy start date, last increase and notice status. Treat a future increase as upside—not closing cash—until the legal requirements are satisfied.
Questions to ask before relying on the rent
- What is the current lawful rent and when was it last increased?
- Is the unit guideline-covered or genuinely exempt?
- Do the lease, notices, ledger and seller’s statements agree?
- Does the purchase require vacant possession or future higher rent to remain affordable?
- Which issue needs a lawyer or licensed paralegal before conditions are waived?
Rajiv’s broker perspective
A lender’s rental worksheet and Ontario tenancy law answer different questions. The lender may recognize only part of the rent, while the owner may also be unable to increase rent or obtain vacancy on the expected date. I would qualify the mortgage using verified lawful rent, test vacancy and repair reserves, and compare A, alternative/B, MIC or private options only after the legal occupancy assumptions are confirmed.
Related: Real Estate Centre · Mortgage Knowledge Centre · Updates & Rules Centre
Buying or refinancing a tenant-occupied property?
Send Rajiv the property type, lawful rent, lease dates and intended occupancy. He can test the mortgage using realistic rental assumptions and identify when independent landlord-tenant advice is needed.
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