Ontario Rent Increase Guideline 2027: Maximum Increase Without LTB Approval Is 1.9%

The guideline is calculated using the average Ontario Consumer Price Index over a specific 12-month window, from June of the prior year through May of the current year.

[Cite: Residential Tenancies Act, s. 120 annual guideline mechanism]

That rolling 12-month measurement window means the guideline reflects a specific, recent slice of provincial inflation data rather than a longer-term average; a landlord trying to anticipate a future year's guideline should watch Ontario CPI trends during that specific measurement window rather than relying on a general sense of current inflation.

Regardless of what the CPI calculation would otherwise produce, the guideline is capped by law at a maximum of 2.5%.

[Cite: Residential Tenancies Act, s. 120]

That cap means a landlord shouldn't assume the guideline will always track inflation proportionally; in a year where measured inflation runs well above 2.5%, the guideline figure still can't exceed that statutory ceiling, which is part of why this mechanism is described as capped rather than a pure inflation pass-through.

The drop from 2026's 2.1% guideline to 2027's 1.9% figure stems from the underlying CPI calculation for the relevant measurement period, not from a change to the formula or the statutory cap itself.

[Cite: Residential Tenancies Act, s. 120 annual guideline mechanism]

A landlord shouldn't read this year-over-year decrease as a policy shift toward stricter rent control; the same formula and the same 2.5% cap applied in both years, with the lower 2027 figure simply reflecting lower measured inflation during its specific 12-month CPI window compared to the prior year's window.

A unit first occupied for residential purposes after November 15, 2018 is generally exempt from Ontario's rent control framework entirely, meaning the annual guideline doesn't apply to it at all.

[Cite: Residential Tenancies Act, rent control exemption provisions]

A landlord operating a newer building needs to confirm that specific first-occupancy date before assuming the 1.9% guideline applies; a unit that qualifies for this exemption can be increased by whatever amount the landlord and tenant agree to, unconstrained by the annual guideline figure.

Rent on a unit between tenancies, after a prior tenant moves out and before a new one moves in, isn't regulated by the guideline; a landlord can reset that rent to market value for an incoming tenant.

[Cite: Residential Tenancies Act, vacancy decontrol provisions]

That distinction parallels how several other Canadian provinces handle rent control; the 1.9% guideline protects a continuing tenant from a large increase within their ongoing tenancy, but it doesn't constrain what a landlord can charge once that specific tenancy actually ends and a new one begins.

Different secondary sources cite different dates for when the province actually published the 2027 guideline figure, ranging from late June to early July 2026, without a standalone government news release confirming one specific date.

[Cite: Multiple secondary sources, dates not consistently confirmed]

A landlord or property manager needing the precise announcement date for a specific administrative purpose should confirm it directly against Ontario's official residential rent-increase page rather than relying on any single secondary source's stated date, since the sources reviewed here didn't agree with each other on this specific point.

A landlord wanting to increase rent beyond 1.9% for a guideline-covered unit generally has to apply to the Landlord and Tenant Board for an above-guideline increase, typically justified by specific factors like extraordinary capital expenditures.

[Cite: Residential Tenancies Act, above-guideline increase provisions]

A landlord planning an increase beyond the published guideline needs to build in the Board's application and hearing timeline, which operates on a substantially longer and more demanding track than simply applying the standard guideline figure directly.

Since newer, post-2018 units are exempt from the guideline while older units remain covered, a landlord with a mixed portfolio needs to apply 2 entirely different rent-increase processes depending on each unit's first-occupancy date.

[Cite: Residential Tenancies Act, rent control exemption and guideline provisions]

A landlord who mistakenly applies the 1.9% guideline cap to an exempt unit is leaving potential rent increase room on the table, while a landlord who mistakenly treats a guideline-covered unit as exempt risks an increase that exceeds what's actually permitted without Board approval.

Since a unit's exemption status depends specifically on when it was first occupied for residential purposes, a landlord should retain documentation establishing that date clearly.

[Cite: Residential Tenancies Act, rent control exemption provisions]

A landlord who can point to clear documentation of a building's first-occupancy date is in a much stronger position if a tenant later disputes whether the guideline should have applied to a specific increase, compared to a landlord relying on an undocumented assumption about the building's age.

Since the guideline moved from 2.1% to 1.9% between 2026 and 2027, a landlord projecting multi-year rent increases for guideline-covered units should build in some variability rather than assuming a flat percentage repeats.

[Cite: Residential Tenancies Act, s. 120 annual guideline mechanism]

A property manager working from a multi-year financial model for guideline-covered units benefits from checking the published figure each year specifically, since the underlying CPI-based formula can move the guideline either up or down year to year, within the statutory 2.5% ceiling.

The practical starting point is confirming each unit's first-occupancy date to determine whether the 1.9% guideline applies at all, since that single cutoff date determines which calculation process governs a given unit's 2027 increase.

Checking Ontario's official residential rent-increase page directly for the confirmed 1.9% figure and its effective date range, rather than relying on any single secondary source's account of the announcement timing, keeps a landlord's compliance process grounded in the authoritative source.