The most you can raise rent in Ontario in 2026 is 2.1% for most units: the provincial rent increase guideline. The increase needs at least 90 days' written notice on the Landlord and Tenant Board's Form N1, and at least 12 months must have passed since the last increase or the start of the tenancy. Units first occupied after November 15, 2018 are exempt from the guideline but not from the notice rules. The 2027 guideline is already published: 1.9%.
Here is the shape of the Ontario ritual. Unit 208's lease anniversary is January 1. Count the 90 days back and the N1 has to be served by October 3, weeks before you planned to think about January. And because the increase takes effect in 2027, the form carries 1.9%, not this year's 2.1%; the guideline follows the effective date, not the serve date. Do that math for every lease's own anniversary and Ontario rent increases are not an annual event. They are a year-round clock.
The market-neutral spine, cadence, notice, service, and the file, is covered in How and When to Raise Rent: Scheduling, Notice Periods, and Documentation. This guide is the Ontario layer: the guideline, the exemption boundary, the N1, and the two clocks. It is operator education, not legal advice, and every number is named to its official source.
The Ontario rent increase guideline for 2026
The Ontario rent increase guideline is the most a landlord can raise rent for a guideline-covered unit without the tenant's agreement or the Landlord and Tenant Board's approval. For increases taking effect in 2026 it is 2.1%, per the province's residential rent increases page on Ontario.ca. The guideline is calculated from the Ontario Consumer Price Index and capped at 2.5% by law; it sat at the cap in both 2024 and 2025.
Two timing facts matter more than the percentage. The guideline is announced by August 31 for increases taking effect on or after January 1 of the following year, per the Landlord and Tenant Board's guide to the Residential Tenancies Act, so the 2027 number is already public: 1.9%, per Ontario.ca's rent increase guideline page. And the governing guideline is the one for the calendar year the increase takes effect in, not the year you serve it: a notice served in October 2026 for a January 2027 effective date carries 1.9%. Both figures were verified against Ontario.ca in July 2026.
Which units the guideline covers
The guideline covers most private residential rental units under the Residential Tenancies Act, 2006: houses, apartments, condos, care homes, mobile homes, and land lease communities. The exemptions are specific: new buildings, additions, and most new basement apartments first occupied for residential purposes after November 15, 2018 are not subject to the cap, and community housing and long-term care homes follow their own rules. The cap also binds within a tenancy, not between tenancies: on turnover, the new starting rent is whatever the market bears.
Exempt does not mean unregulated. A unit outside the guideline still gets 90 days' written notice, still waits 12 months between increases, and uses its own Board form: the N2, Notice of Rent Increase (Unit Partially Exempt). The split decides the cap and the form; the clocks stay the same either way:
| Rule | Covered by the guideline | Exempt: first occupied after November 15, 2018 |
|---|---|---|
| Maximum increase | The year's guideline: 2.1% in 2026 | No cap; the lease and the market decide |
| Notice form | N1, Notice of Rent Increase | N2, Notice of Rent Increase (Unit Partially Exempt) |
| Written notice | At least 90 days | At least 90 days |
| Frequency | At least 12 months between increases | At least 12 months between increases |
| Above the cap | LTB approval (L5) or tenant agreement (N10) | Not applicable |
The 90-day clock and the 12-month rule
Two clocks govern every Ontario rent increase, and both run per lease. The notice clock: written notice, on the proper form, at least 90 days before the increase takes effect. The frequency clock: at least 12 months since the tenant's last increase or since they moved in, which puts a new tenancy's first increase at month 12 at the earliest, with its notice served by month 9. The arithmetic is always backward: pick the effective date, subtract 90 days, and treat that as the deadline, with margin for however the notice travels.
The clocks are unforgiving in a specific way. A notice that is short, on the wrong paper, or missing does not produce a smaller or later increase; it produces no increase, and Ontario.ca notes a tenant can dispute an improper one at the Board within 12 months. That is why well-run Ontario portfolios treat the service deadline, not the effective date, as the date that matters.
The N1 notice of rent increase
Form N1, Notice of Rent Increase, is the Landlord and Tenant Board form that makes a guideline rent increase official in Ontario. It states the rental unit, the current rent, the new rent, and the effective date, and the landlord or the landlord's agent signs it. The tenant does not sign an N1 and does not need to; a guideline increase takes effect on proper notice alone. The current form is published by Tribunals Ontario, and where the province prescribes the paper, a homemade letter is not a substitute.
The N1 also has places it does not belong. An exempt unit takes the N2. A care home increase involves the N3. And an increase above the guideline is never a bigger number on an N1; it needs the tenant's written agreement or the Board's approval first.
The Ontario procedure, start to finish
Run this per lease, counted backward from the intended effective date:
- Confirm the frequency clock. The later of move-in and the last increase's effective date, plus 12 months, is the earliest lawful date.
- Confirm covered or exempt. The first-occupancy date against November 15, 2018 decides the cap and whether the form is the N1 or the N2.
- Take the year's guideline. Use the guideline for the calendar year the increase takes effect in, from Ontario.ca, then set your number at or below it.
- Count 90 days back. Subtract 90 days from the effective date; serve on or before that day, with margin.
- Fill the official form. Unit, current rent, new rent, effective date, nothing ambiguous.
- Sign it. The landlord or an authorized agent signs; the tenant's signature is not part of an N1.
- Serve it and keep proof. Use a method the Board recognizes, and record what was served, to whom, how, and when.
- File it against the lease. The notice, the proof, and the rate applied become next year's starting point.
Raising rent above the guideline
Above the guideline, a covered unit has two lawful routes, and both leave a record. Agreement: the landlord and tenant sign Form N10, Agreement to Increase the Rent Above the Guideline, typically in exchange for capital work or a new service. Application: the landlord files Form L5, Application for a Rent Increase Above the Guideline, with the Landlord and Tenant Board, for eligible reasons only: an extraordinary municipal tax increase, eligible capital expenditures, or security services. For capital expenditures and security services, the Board's guidance caps approval at 3% above the guideline per year, over up to three years. It is a tribunal process with its own evidence rules; start from the Board's published materials, not a summary, this one included.
Key questions
When can a landlord increase rent in Ontario?
Once the tenancy is at least 12 months old, and at least 12 months after the last increase, with at least 90 days' written notice on the proper form. Both clocks run per lease, so the practical deadline is the effective date minus 90 days: for a January 1 increase, the notice has to be served by October 3. Miss the window and the increase is not late; it waits for the next lawful date.
Is my unit exempt from the Ontario rent increase guideline?
Most units are not exempt. The main exemption is first occupancy: new buildings, additions, and most new basement apartments first occupied for residential purposes after November 15, 2018 are not subject to the guideline cap, per Ontario.ca. Community housing and long-term care homes sit outside it too. An exempt unit still needs 90 days' written notice, still waits 12 months between increases, and uses Form N2 instead of the N1.
Can I raise rent above the guideline in Ontario?
Yes, by two routes. The tenant can agree in writing on Form N10, typically in exchange for capital work or a new service. Or the landlord can apply to the Landlord and Tenant Board on Form L5 for eligible reasons: an extraordinary municipal tax increase, eligible capital expenditures, or security services. For capital expenditures and security services, the Board can approve at most 3% above the guideline per year, spread over up to three years.
Does the tenant have to agree to a rent increase in Ontario?
No, not for a guideline increase. A rent increase at or below the guideline takes effect on proper notice alone: the right form, served at least 90 days ahead, at least 12 months after the last increase. The tenant does not sign an N1; the signature on it is the landlord's or the agent's. Agreement enters only above the guideline, where Form N10 records the tenant's written consent.
How Scaalr runs the Ontario schedule
Scaalr treats an Ontario rent increase as a scheduled, validated event on the lease rather than a date in someone's head. You set the increase on the lease, or in bulk from the rent-increases worklist, which shows every eligible lease, its earliest lawful effective date, and its proposed rate. The Ontario profile validates each schedule against the guideline cap, the 12-month rule, the protected window at the start of a tenancy, and the 90-day floor, at scheduling and again before anything serves. A lease recorded as not subject to the guideline is checked as a warning instead of a block, so covered and exempt units live in one portfolio without two processes.
The paper is the real N1, filled and flattened, and it never goes out unsigned. A designated signer can capture a signature once and authorize unattended sending, review and sign each notice, or route notices to the property owner through a secure emailed link; a schedule with no usable signature holds until one is captured. When the date arrives, Scaalr opens a rent-increase case, generates and attaches the N1, serves it by email, which is lawful service for Ontario rent increase notices, and records the result against the lease.
Control sits where it should. Automated notices do not serve in Ontario until a manager reviews and acknowledges the market's current rules; until then the schedule pauses safely and sends nothing. The applied percentage resolves transparently from the guideline, your account policy, and the lease's own rate, each notice recording which layer set the number; when the province publishes a new guideline, the worklist asks once: keep the maximum or set less. Every supported market is listed on the rent increases page, and automated rent-increase notices are included on Growth and up.
None of this is about serving notices faster. It is that every anniversary in the portfolio is tracked and every N1 is prepared, validated, signed, served, and filed, so the attention you used to spend reconstructing deadlines goes to the decision that was always yours: the number.
The same September, current
Back to unit 208. Its schedule has carried the January 1 anniversary since the lease was signed: earliest lawful date computed, 90-day deadline tracked, and when the province published the 2027 guideline, one question to answer in the worklist. The N1 went out signed, inside the window, and the lease record shows what served, when, and at what rate. October 3 passed without anyone counting backward from January. The record-keeping discipline is the same one behind Property Management Accounting: The Complete Operational Guide; the notices earn their shelf next to the ledger.