Ontario’s 2027 rent increase guideline is 1.9%. For owners evaluating Durham Region property management decisions, the lower guideline is a useful Q4 planning signal. It affects rent-controlled units, notice schedules, cash flow forecasts, and the timing of capital work.
The 2027 guideline was announced in June 2026. It applies to rent increases taking effect on or after January 1, 2027. The 2026 guideline was 2.1%, so the permitted increase has declined by 0.2 percentage points.
That change is modest on one unit. Across a larger portfolio, it still belongs in your annual operating review.
What the 1.9% Guideline Means for Durham Region Property Management
The guideline is the maximum increase most landlords can apply to rent-controlled residential units without approval from the Landlord and Tenant Board.
It is based on the Ontario Consumer Price Index and applies according to the year in which the increase takes effect, not the year in which notice is served.
For example:
- An increase taking effect in 2026 may use the 2026 guideline of 2.1%, if all other requirements are met.
- An increase taking effect in 2027 may use the 2027 guideline of 1.9%.
- Serving a notice in 2026 does not allow a landlord to use the 2026 percentage for an increase that starts in 2027.
The Ontario government’s rent increase guidance confirms the 2027 guideline, the 90-day notice rule, and the main rent-control exemptions.
A simple cash flow example
Suppose a rent-controlled unit currently rents for $2,400 per month.
A 1.9% increase would be:
- Monthly increase: $45.60
- New monthly rent: $2,445.60
- Annual gross increase: $547.20
The calculation is straightforward. The operating decision requires more review. You should compare the additional income against property taxes, insurance, utilities, maintenance, financing costs, and planned capital work.
A lower guideline does not remove the need for an increase review. It makes accurate forecasting more important.
N1 Notice Deadlines: The January 1 Date Has Passed
A landlord must generally serve the tenant with written notice at least 90 days before the rent increase takes effect. The notice must use the approved Form N1 – Notice of Rent Increase.
For a January 1, 2027 increase, the notice had to be served by October 3, 2026.
Because this article is scheduled for October 7, 2026, that deadline has passed. If a January 1 notice was not properly served by October 3, do not backdate the document or assume that a late notice will be effective. The next lawful effective date must be calculated from the date proper notice is served.
For later 2027 increases, work backward at least 90 days from the intended effective date.
A practical notice-control process should confirm:
- At least 12 months have passed since the last increase or the start of the tenancy.
- The correct approved form is used.
- The percentage and dollar calculation are accurate.
- The notice provides the required 90 days.
- Service is documented.
- The unit’s rent-control status has been verified.
- The effective date is recorded in the rent ledger and property calendar.
The Landlord and Tenant Board forms page contains the current N1 form and related materials. Owners should also account for service rules and delivery timing rather than relying only on calendar calculations.
Which Durham Region Units Are Exempt from the Guideline?
Units first occupied for residential purposes after November 15, 2018 are generally exempt from Ontario’s rent increase guideline. This can include qualifying new buildings, additions, and certain new basement apartments created in previously unfinished space. The key issue is documented first occupancy for residential purposes, not the original construction year of the house or building.
For an exempt unit, the 1.9% guideline does not set the maximum increase. Other rules still apply, including notice requirements and the need to follow the lease and the Residential Tenancies Act where applicable. Landlords of exempt units generally use Form N2 rather than N1, but still must provide at least 90 days' notice and wait at least 12 months between increases.
The exemption should be documented. Useful records may include:
- Building permits and permit applications
- Occupancy permits
- Builder or warranty documents
- Construction invoices
- Before-and-after photographs for new units in existing houses
- Lease language identifying the exemption, where appropriate
Do not rely on the property’s construction year alone. The relevant question is when the unit was first occupied for residential purposes and whether the statutory conditions are met. Documented first occupancy is the point to verify.
For units with uncertain status, review the records before preparing a notice. The Residential Tenancies Act, 2006 and current provincial guidance should be treated as the starting point for that review.
Durham Vacancy Data Should Shape the Q4 Review
The 2027 guideline is only one part of the rent decision. Local vacancy conditions also matter.
The latest available CMHC October 2025 vacancy figures provided for Durham markets show different conditions across municipalities and submarkets:
| Durham area | October 2025 vacancy rate |
|---|---|
| Pickering, Ajax, and Uxbridge | 1.8% |
| Whitby, including Brooklin | 2.5% |
| Oshawa overall | 3.7% |
| North Oshawa | 2.9% |
| South/Central Oshawa | 4.7% |
| Clarington, including Bowmanville | 1.6% |
These figures come from CMHC rental market data. They primarily reflect purpose-built rental properties and should not be treated as a direct measure of every single-family home, basement apartment, condominium, or small multiplex.
The differences still provide useful operating context.
A unit in a lower-vacancy area may support a stable guideline increase if its condition, price, and tenant profile remain competitive. A unit in a higher-vacancy submarket may require more caution. A poorly timed increase can create turnover, additional vacancy, leasing costs, and repair exposure that outweigh the scheduled rent adjustment.
The right question is not simply, “Can I increase rent by 1.9%?” It is:
“What rent strategy produces the strongest risk-adjusted cash flow for this unit and submarket?”
Review the CMHC Rental Market Survey data tables alongside your own leasing history, current inquiries, turnover costs, and comparable listings.
Use the Guideline Drop in Your Q4 Portfolio Review
The shift from 2.1% to 1.9% is a prompt to update your assumptions before finalizing the 2027 budget.
A disciplined portfolio review should cover five areas:
- Rent roll accuracy: Confirm each unit’s current rent, last increase date, effective date, and rent-control status.
- Operating cost changes: Update property taxes, insurance, utilities, contracted services, financing, and reserve contributions.
- Vacancy exposure: Compare each property’s location, condition, price, and expected turnover risk against local vacancy data.
- Capital requirements: Identify roofs, mechanical systems, appliances, flooring, windows, and other major components approaching replacement.
- Notice administration: Schedule N1 preparation, review, service, and recordkeeping well ahead of each effective date.
For a larger building, separate the review by unit type and location. A single increase assumption applied across an entire portfolio can hide the difference between a well-positioned unit and one that already requires pricing or presentation work.
When Capital Improvements May Support an AGI Application
Some owners will also review whether capital work could support an above-guideline increase application, commonly referred to as an AGI.
An AGI is not an automatic alternative to the annual guideline. It is a separate process that requires an application to the Landlord and Tenant Board and supporting documentation. An AGI is a formal LTB application (Form L5). For capital expenditures, the work generally must be completed and paid for within the period prescribed by the RTA, ending 90 days before the first intended increase effective date. Missing those windows, or applying for work that does not qualify, can delay or defeat the application. Confirm current LTB guidance before relying on an AGI. A new tenant who begins occupancy after the capital work is completed or after the filing deadline is generally not subject to the AGI increase, so owners should not over-forecast the benefit. Eligibility, cost allocation, timing, notice, and approval requirements matter.
Before considering an AGI application, organize:
- Invoices and paid receipts
- Contracts and project scopes
- Financing details, where relevant
- Completion dates
- Evidence of the work completed
- The affected units or building areas
- The allocation of costs across eligible units
- Existing rent and increase records
Capital work should be evaluated first as a property investment decision. Does it address a failing system, protect the building, improve safety, or materially extend useful life? If the work may also support an AGI application, treat that as a separate regulatory analysis.
Do not assume that routine maintenance, cosmetic work, or every improvement will qualify. Legal review is appropriate before any application or tenant communication.
How Olympus Realty Supports the Annual Review
Owners using Durham Region property management services often need the rent review, leasing plan, maintenance schedule, and financial forecast to work from the same information.
Our services are structured around that operating need:
- Rent and lease administration: We track key dates, rent records, and required notice timelines so increases are not managed from memory.
- Financial oversight: We provide reporting that helps you compare scheduled income against operating costs and reserve requirements.
- Maintenance coordination: We identify repair and replacement needs before they become unplanned budget events.
- Tenant placement: We price and market vacant units using current property conditions and local leasing factors.
- Owner communication: We present the relevant numbers, dates, and decisions clearly so you can approve the next step.
Olympus Realty Property Management has served owners since 2008. Our About Us page explains our family-owned, boutique approach across Ajax and the Durham Region.
Plan the Next 90 Days Now
The 2027 guideline is 1.9%. That number should be entered into your budget, but it should not be the entire plan.
Start with a current rent roll. Confirm each unit’s exemption status. Review the last increase date. Map the 90-day notice deadlines. Then compare the projected income against local vacancy conditions, operating costs, and capital requirements.
For January 1 increases, the October 3, 2026 notice deadline has already passed. For later effective dates, calculate the deadline now and build review time into the schedule.
To discuss your portfolio, review the Property Management Services offered by Olympus Realty Property Management or contact our team at 289-671-9987.
Disclaimer: This article is for general information only and is not legal, tax, accounting, or financial advice. Rent control, Form N1 notices, exemptions, and AGI applications involve fact-specific requirements. Have legal-adjacent matters reviewed by a qualified professional before taking action.
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