A landlord can usually raise rent only once every 12 months, with at least 90 days’ written notice on the correct Landlord and Tenant Board form. Most existing tenancies are capped by the province’s annual guideline, tied to inflation. Units first occupied after November 15, 2018, and rent set for a brand-new tenant, fall outside that cap. Anything above the guideline needs an LTB order, and tenants don’t owe that extra amount until one is issued.
TL;DR:
- Landlords can only increase rent once every 12 months and must provide proper 90-day written notice using the correct Landlord and Tenant Board form.
- Units first occupied after November 15, 2018, and new tenancies at turnover are exempt from rent control guidelines and can be charged market rates.
- Above-guideline increases require proof of qualifying reasons such as property tax hikes or capital expenditures, with supporting documentation submitted via Form L5.
- Tenants have 12 months to dispute improper notices or calculations, while landlords must ensure correct form use, proper notice delivery, and documentation to avoid invalidating rent hikes.
- The annual rent increase cap is tied to inflation via the CPI, but the exemption for new units created after 2018 continues to grow, creating a two-tier rental market.
Ontario rent control rules: the 12-month clock, notice periods and LTB forms
The Residential Tenancies Act, 2006 sets the baseline every landlord and tenant in a rent-controlled unit works within, and it starts with timing. A landlord can raise the rent once every 12 months, counted from the date the tenancy began or the date the last increase took effect, whichever is later. Assigning a tenancy to a new occupant doesn’t reset that clock. Neither does a new fixed-term lease with the same tenant.
Once the 12 months has passed, the landlord must give at least 90 days’ written notice before the new rent kicks in. That notice has to use the right LTB form, and the form depends on the situation: N1 covers a standard guideline increase, N2 applies to units exempt from the guideline, N3 is for care homes, and N10 documents an agreed above-guideline increase reached directly with the tenant. Serve the wrong form, get a date wrong, or skip proper delivery, and the notice can be treated as invalid. The remedy is simple but frustrating for landlords in a hurry: reissue it correctly and start the 90-day countdown again.
A worked example makes the mechanics clearer. Say a tenant pays $2,000 a month and the current guideline sits at 2.5%. The math is straightforward:
- Multiply the current rent by the guideline percentage: $2,000 × 0.025 = $50.
- Add that amount to the existing rent: $2,000 + $50 = $2,050.
- Confirm the new rent hasn’t taken effect until both the 12-month and 90-day conditions are met.
Pro Tip: Landlords should calendar the notice date the moment a tenancy starts, not the moment they decide to raise rent. Missing the 90-day window by even a few days pushes the whole increase back to the next eligible date.
Tenants aren’t without recourse if a notice looks off. Under the same Ontario government guidance, a tenant can dispute an improperly calculated or improperly served increase at the LTB within 12 months of the date the improper amount was first charged. That window matters. Wait too long, and the dispute becomes harder to win even when the original notice was flawed.
How Ontario sets the rent increase guideline each year
The guideline isn’t a number of years regulators pick out of thin air. It’s calculated from Statistics Canada’s Consumer Price Index for Ontario, and the province announces the figure each year well ahead of the following January. The 2026 guideline announcement reaffirmed that the cap moves with inflation rather than following market rents or landlord costs directly.
Here’s what the guideline actually controls, and what it leaves alone:
- It caps how much rent can rise during an existing tenancy in a covered unit.
- It does not cap what a landlord can ask a brand-new tenant to pay when a unit turns over.
- It does not apply to parking, storage, or other add-on service charges billed separately from rent, though those charges have their own rules under the Act.
- It does not override social and community housing rent-geared-to-income formulas, which follow separate provincial and municipal rules.
That last distinction, guideline versus market reset, is the one investors misunderstand most often. A unit renting for $1,800 under a sitting tenant might list for $2,400 the moment that tenant moves out, entirely within the law, because the rent control ceiling protects the current tenancy, not the unit itself. If you’re pricing a unit at turnover, that gap between in-place rent and market rent is often the single biggest number in your underwriting.
Which rental units are exempt from Ontario’s rent control rules
Not every rental in Ontario falls under the guideline cap, and knowing which category a unit sits in changes how a landlord can legally price it.
- Units first occupied for residential purposes on or after November 15, 2018, are exempt from the guideline entirely, regardless of when the current tenancy started.
- New tenancies created through legitimate turnover, meaning the previous tenant has genuinely vacated, allow the landlord to set whatever rent the market supports for the incoming tenant.
- Care homes and long-term care operate under separate notice rules (the N3 form) that account for services bundled into the rent.
- Community housing and rent-geared-to-income units follow their own funding-based formulas rather than the standard guideline.
Landlords claiming the post-2018 exemption need to be ready to prove it. Occupancy permits, the original lease, or municipal building records showing first occupancy after that date are the kind of evidence the LTB expects to see if a tenant challenges the claim. Tenants who suspect a unit was actually occupied earlier, maybe an older building where a unit was renovated and relisted as “new”, can request that documentation and raise the issue at the LTB rather than accepting a landlord’s say-so.
Above-guideline increases: what qualifies and how the process works
An above-guideline increase, or AGI, lets a landlord ask for more than the annual cap, but only for specific, provable reasons. According to the LTB’s AGI guidance, the accepted grounds are:
- An extraordinary increase in municipal property taxes.
- Eligible capital expenditures, think a new roof, elevator, or major system replacement.
- New or increased costs for security services.
Capital expenditure and security-related increases are generally capped at 3% above the guideline in a single year, with any approved amount beyond that phased across two additional 12-month periods. Municipal tax increases can exceed that 3% cap in some cases, since tax hikes are outside a landlord’s control. For a capital expenditure to qualify, the work has to be completed within an 18-month window ending 90 days before the increase would take effect, and it needs to be fully paid for before the landlord files.
Filing runs through Form L5, and the LTB expects supporting paperwork, not just an application:
- Invoices and receipts showing the work was completed and paid in full.
- Municipal tax notices, if the claim rests on a tax increase.
- Proof the increase is being sought within 90 days of the intended effective date.
Pro Tip: If you’re a tenant facing an AGI application, don’t focus your dispute on whether you can afford the higher rent. The LTB’s process turns on whether the landlord’s costs actually qualify, so pushing back on the eligibility of the invoices and the timing of the work is usually the stronger argument.
The most important protection for tenants: the above-guideline portion isn’t payable until the LTB actually orders it. A pending application doesn’t mean paying more rent in the meantime. Many AGI matters also settle through mediation before a hearing, with landlord and tenant agreeing to a phased or reduced increase rather than waiting for a full board decision.
How to dispute or defend a rent increase at the LTB
Whether you’re the one filing or the one responding, the process rewards preparation over improvisation.
- Tenants disputing an improper increase have 12 months from when the improper amount was first charged to file at the LTB.
- Gather the paper trail first: the lease, every notice received, rent payment records, and anything showing when and how a notice was served.
- Landlords defending an AGI need the reverse: invoices, cancelled cheques or bank records, and municipal tax notices tied to the claimed cost.
- Check the notice itself for service and timing errors before anything else. A defective notice, wrong form, wrong date, improper delivery, can void the whole increase, and the fix is simply reissuing it correctly rather than arguing the underlying amount.
Pro Tip: Most disputes I’ve seen described in LTB decisions turn on dates and paperwork, not on disagreements over the math. Keep everything, and keep it organized by date.
LTB outcomes generally land in one of a few buckets: dismissal of a defective application, a mediated agreement between the parties, a phased increase over multiple years, or in maintenance-related disputes, a rent abatement that effectively reduces what the tenant owes.
A practical checklist for landlords and tenants
Print this, save it, or just keep it in mind the next time a rent increase notice lands in your inbox.
- Tenants: Keep your lease, every notice you receive, proof of when you got it, and a running rent ledger showing what you’ve paid and when.
- Tenants: If you plan to dispute, file at the LTB within the 12-month window, not after.
- Landlords: For exemption claims, keep proof of first occupancy, occupancy permits, or building records showing the date.
- Landlords: For any increase, document the last increase date, the correct form used, and proof of how and when it was served.
- Landlords pursuing an AGI: Retain invoices, proof of full payment, and municipal tax notices before filing Form L5.
- Both sides: Track the two key deadlines, 12 months between increases and 90 days’ notice, plus the AGI filing window of at least 90 days before the intended effective date.
Why Ontario has rent control, and what it was built to do
Rent control in Ontario dates back to the 1970s, introduced during a period of rapid rent increases and housing shortages in urban centres. The current framework, the guideline system under the Residential Tenancies Act, 2006, replaced older rent review boards with a simpler, formula-based approach: cap most increases to a predictable annual number tied to inflation, while still letting landlords apply for more when costs genuinely rise.
The policy goal was always a balancing act. Tenants needed protection from sudden, unaffordable rent jumps that could force them out of long-held homes. Landlords needed some mechanism to keep pace with rising property taxes, utility costs, and building maintenance, or the incentive to maintain rental housing stock would erode. The guideline formula, plus the AGI process for extraordinary costs, was the compromise.
The November 2018 exemption for new-construction units added a second layer of intent: encourage new rental supply by letting developers and landlords price new buildings at market rates, since rent control on brand-new stock can discourage construction. Whether that exemption has meaningfully increased new rental supply is still debated among housing economists, but it explains why a 2019-built building down the street can operate under entirely different rules than a 1985 building next to it.
What rent control actually means for tenants and landlords day to day
For tenants in a covered, pre-2018 unit, the guideline is genuine, dependable protection. Knowing rent can’t jump more than a published annual percentage makes long-term budgeting possible, and it’s part of why so many Ontario tenants stay in the same unit for years rather than face the churn of a market-rate search every lease renewal.
For landlords, the guideline can feel restrictive when actual costs, insurance, utilities, property taxes, run ahead of the capped percentage. That gap is exactly what the AGI process exists to address, though it requires paperwork and patience most landlords would rather avoid. Smaller landlords, in particular, often find the AGI process disproportionately burdensome relative to the extra rent it eventually recovers.
The exemption for post-2018 units creates a two-tier rental market in practice. An investor holding a pre-2018 building is locked into guideline increases for sitting tenants, while a comparable new-construction building down the street can be priced at whatever the market bears, and adjusted at will between tenancies. That’s not a flaw in the system so much as the system doing exactly what it was designed to do: protect legacy tenancies while leaving new supply unregulated.
Recent and pending changes to Ontario’s rent rules
The guideline itself moves every year with inflation, and the 2026 announcement kept that CPI-based approach in place rather than switching to a flat or negotiated figure. That consistency matters for landlords budgeting multi-year cash flow and for tenants trying to predict next year’s rent.
Beyond the annual number, the exemption line for new construction, November 15, 2018, has stayed fixed since it was introduced, which means the pool of exempt units keeps growing every year as more post-2018 buildings come online. Anyone buying a rental property built after that date should treat the exemption as a given, not something to verify unit by unit, though confirming the actual first-occupancy date is still worth doing before you rely on it in a dispute.
Ontario tenant advocacy groups and some municipal councils have periodically pushed to extend the guideline to post-2018 units or tighten AGI eligibility, but no such change has taken effect as of this writing. Anyone transacting a rental property, whether buying, selling, or leasing, should check the current Residential Tenancies Act, 2006 and the latest LTB brochures before finalizing pricing or lease terms, since procedural details around forms and filing fees do shift periodically even when the core guideline framework stays stable.
Rent control rules for basement apartments, condos and other unit types
The type of unit matters less than most people assume, what matters legally is when the building or unit was first occupied and whether it’s a standard residential tenancy at all.
A basement apartment in a house built in the 1990s is generally covered by the guideline just like any other unit in an older building, provided it’s a legal, self-contained rental unit under a standard tenancy agreement. A condo unit follows the same logic: a condo in a building completed in 2015 falls under guideline protection, while a condo in a building that received its first occupancy permit in 2020 is exempt, regardless of the fact that both are technically “condos.” The building type doesn’t create the exemption; the occupancy date does.
Where things get more complicated is with owner-occupied properties that rent out a portion, like a homeowner renting a basement suite while living upstairs. Those tenancies are still generally covered by the Residential Tenancies Act and the guideline unless a specific exemption applies, such as the tenant sharing a kitchen or bathroom with the owner, which can place the arrangement outside the Act entirely. Landlords in that situation should confirm which category they fall into before assuming either full coverage or full exemption; getting it wrong creates real liability either way. Vacation and short-term rental arrangements raise a separate set of legal questions entirely, which is worth reviewing separately when setting up a short-term rental in Ontario.
Eviction protections tied to rent increases
A landlord cannot evict a tenant simply for refusing to pay an unlawful or improperly noticed rent increase. If a tenant disputes an increase and continues paying the last lawful rent amount while the matter is before the LTB, that alone isn’t grounds for eviction. Landlords sometimes attempt to use a rent dispute as a pretext for a bad-faith “landlord’s own use” eviction application, and the LTB has become more attentive to that pattern in recent years, scrutinizing the timing and circumstances closely when an eviction application follows closely on the heels of a rejected or disputed rent increase.
Tenants who fall behind on rent because of a genuinely disputed increase should keep paying the undisputed portion, the last lawful rent amount, on time. That single habit does more to protect a tenant’s standing at the LTB than almost anything else, since it demonstrates good faith and removes the landlord’s ability to claim non-payment as a separate ground for eviction. Falling behind entirely, even over a legitimate dispute about the increase itself, opens the door to a non-payment application that runs on its own timeline separate from the rent dispute.
How rent control fits with other tenant protections in Ontario
Rent control doesn’t operate in isolation. It sits alongside maintenance obligations, eviction rules, and notice requirements that are all part of the same Residential Tenancies Act, and they interact in ways that catch both sides off guard.
A tenant facing a lawful guideline increase can still raise a maintenance complaint separately, and if the LTB finds the landlord failed to maintain the unit, it can order a rent abatement that effectively offsets part of the increase. The two issues, rent increases and maintenance standards, are legally distinct but often argued together at the same hearing. Similarly, a landlord pursuing an AGI for capital expenditures needs to be careful that the work itself didn’t create habitability problems during construction, since a tenant can raise those conditions as a countervailing issue even while the AGI application is being decided.
Notice requirements for rent increases also interact with the broader service rules under the Act, meaning the same standards for what counts as proper delivery, in person, by mail, or through a posted notice, apply consistently whether the notice concerns a rent increase, an entry for repairs, or an eviction application. Getting familiar with one set of service rules genuinely helps with all of them.
What I tell my clients in Toronto, Innisfil and Friday Harbour
What most buyers don’t realize is that a unit’s in-place rent and its market rent can be two completely different numbers, and the gap usually comes down to whether that tenancy is guideline-protected or was set at turnover. When I’m helping an investor underwrite a rental in Innisfil or a condo in Friday Harbour, the first thing I ask for isn’t the current rent roll, it’s the first-occupancy date and the last increase date.
The mistake I see most often is a buyer assuming a listing’s current rent reflects what they can charge next year. It doesn’t, not if the existing tenancy stays in place. I also see landlords serve notices on the wrong form or without proper proof of delivery, which quietly voids the whole increase. If a deal hinges on rental income assumptions, that’s when I bring in a legal or LTB specialist alongside my own market read, rather than guessing.
— Felix
How a real estate team helps with rental pricing and turnover
If you’re holding a rental property in certain Ontario markets and trying to figure out what a unit should actually rent for once a tenancy turns over, that’s exactly where local market intelligence earns its keep. Some local agents work with landlords and investors on pricing units at turnover, distinguishing guideline-capped rent from true market rent, and connecting clients to legal or LTB resources when needed, rather than guesswork.
For anyone weighing a purchase in the Friday Harbour community or comparing rental demand across Innisfil and the GTA, that local read on pricing at turnover can be the difference between an underwritten return that holds up and one that doesn’t. If you’re ready to talk through a specific property, a planned purchase, or how current tenancy status affects your numbers, reach out through Karin Rotem’s site to set up a conversation.
This article is general information, not a substitute for advice from a qualified lawyer. Consult a qualified legal professional about your own circumstances before acting on anything here.
FAQ
What are the new rent control rules in Ontario?
The core rule hasn’t changed: covered tenancies are limited to one increase every 12 months, capped at the annual guideline, with 90 days’ written notice on the correct LTB form. The 2026 guideline follows the same CPI-based formula the province has used in recent years.
Who is exempt from rent control in Ontario?
Units first occupied on or after November 15, 2018, are exempt from the guideline cap entirely. New tenancies created through legitimate turnover, care homes, and community or rent-geared-to-income housing also follow different rules than the standard guideline.
How much can a landlord raise the rent in Ontario in 2026?
For a covered, guideline-protected unit, the increase is capped at the percentage set by the province for 2026, tied to Ontario’s CPI. Exempt units, post-2018 construction or new tenancies at turnover, can be set at whatever the market supports.
Can I refuse a rent increase in Ontario?
You can’t simply refuse a lawful, properly served guideline increase and stay at the old rent indefinitely, but you can dispute an improperly calculated or improperly served notice at the LTB within 12 months of when the wrong amount was first charged. If the increase is above the guideline and pending LTB approval, you don’t owe that extra portion until an order is issued.
