LTB N1: Notice of Rent Increase

What the N1 is

The N1 is the form Ontario landlords must use to increase a tenant’s rent. Rent can normally only go up once every 12 months, and the tenant must receive this notice at least 90 days before the increase takes effect.

For most rental units, the increase cannot exceed Ontario’s annual rent increase guideline (2.1% for 2026) unless the LTB has approved an above-guideline increase. Units first occupied after November 15, 2018 are exempt from the guideline cap, but the N1 and the 90-day notice are still required. An increase given without a proper N1 is invalid — the tenant does not have to pay it.

How to fill it out

1. Part A — the address: enter the full rental unit address exactly as it appears on the lease.
2. Part B — the new rent: enter the new total rent, the amount of the increase, and the date it takes effect. The effective date must be at least 90 days after the tenant receives the notice, and must fall on the day a rental period begins (e.g. the 1st, for a first-of-the-month tenancy).
3. Percentage check: confirm the increase is within the guideline for the year, unless the unit is exempt or you have an LTB order approving more.
4. Sign and date as landlord or agent, with a daytime phone number.
5. Serve it properly — hand delivery, mail (add 5 days for mail), or another method allowed by the RTA — and keep a copy plus proof of service.

Common mistake: counting 90 days from when you mailed it rather than when the tenant is deemed to receive it. When in doubt, give extra time.