Ontario rent increase rules: N1 notices, guidelines & rent control

The annual guideline: the headline number

For rent-controlled units, a landlord may increase the rent once every 12 months, by no more than the provincial guideline — set each year by the Ontario government (it has been 2.5% in recent years; always confirm the current year's figure on Ontario.ca).

Three hard rules apply to every increase, controlled or not: at least 90 days' written notice, no more than one increase per 12-month period, and the increase takes effect on the proper date. The standard way to give notice is the N1 form (Notice of Rent Increase).

Which units are rent-controlled?

Rent control in Ontario applies to most residential units first occupied for residential purposes before November 15, 2018. Units first occupied after that date — including new condos, new basement apartments, and most new builds — are exempt from the guideline cap.

Exempt does not mean unregulated: the 90-day notice rule and the 12-month frequency rule still apply to newer units. A landlord of an exempt unit can raise rent by any amount, but must still do it properly — and tenants can still dispute bad-faith or retaliatory increases at the LTB.

Above-guideline increases (AGIs)

A landlord of a rent-controlled unit who wants more than the guideline must apply to the Landlord and Tenant Board for approval (Form L5) — and can only do so on specific grounds:

• An extraordinary increase in municipal taxes or charges.
• Eligible capital expenditures — major repairs, renovations, or additions (not routine maintenance).
• Costs of providing security services.

How to deliver a valid N1 notice

A surprising number of increases fail on delivery technicalities. The N1 must state the current rent, the new rent, the percentage increase, and the effective date — at least 90 days after the tenant receives it. Count carefully: if the notice is mailed, add mailing days; personal delivery and the tenant's written acknowledgment are safest.

The effective date cannot be earlier than 12 months after the last increase (or the start of the tenancy). An N1 with the wrong effective date is void, and the landlord has to start over — another 90 days.

Tenant options if the increase is wrong

If you receive an increase above the guideline without LTB approval, or with short notice, you don't have to just accept it. Common approaches: pay the lawful amount and apply to the LTB for a rebate of the overcharge (Form T1), or dispute it if the landlord files. Keep the N1, your lease, and rent receipts — adjudicators decide these cases on paperwork.

Tenants in newer, exempt units: you can't cap the increase, but you can negotiate, and you can challenge increases given in retaliation for asserting your rights.