Home › Rent increase & N1 date calculator
Rent increase & N1 date calculator
Ontario’s rent increase guideline (2.1% in 2026, 1.9% in 2027), the 12-month rule and 90-day N1 notice. ✓ Rules checked Oct 10, 2026
How Ontario rent increases and N1 notices work
Most Ontario landlords can raise rent once every 12 months by up to the annual guideline: 2.1% for 2026 and 1.9% for 2027 (capped by law at 2.5%). The guideline applies by the date the increase takes effect. The landlord must give at least 90 days’ written notice using LTB Form N1 (N2 for some exempt units), and at least 12 months must have passed since the last increase or the start of the tenancy.
Units in buildings, additions or most new basement apartments first occupied after November 15, 2018 are exempt from the guideline — but the 12-month and 90-day rules still apply.
Rent increase & N1 date calculator: frequently asked questions
Can my landlord raise rent more than the guideline?
Only with Landlord and Tenant Board approval (an above-guideline increase), or if the unit is exempt (first occupied after Nov 15, 2018).
What if the notice is late?
An increase without proper 90-day written notice is void; the landlord must serve a new notice.
Does the guideline apply to a new tenant?
No. Landlords can set any rent for a new tenancy; the guideline applies to increases for sitting tenants.
How is the guideline set?
From Ontario CPI over the 12 months ending May of the prior year, capped at 2.5%.
Official sources
Rules checked Oct 10, 2026. Estimates only — confirm with official sources and a professional.