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Staying compliant with Ontario's landlord-tenant laws isn't optional — it's essential. One mistake can cost you thousands in fines, legal fees, and lost rent. Here's your complete guide to the rules that matter most for Ottawa landlords in 2026.
Landlord-tenant law in Ontario isn't something you learn once and forget. The rules evolve, and staying current is the difference between a profitable investment and a legal nightmare. Whether you're managing one condo or a portfolio of 20 properties across Ottawa, here's what you need to know heading into summer 2026.
The Residential Tenancies Act, 2006 is the primary legislation governing nearly all residential rental relationships in Ontario. It covers everything from lease agreements and rent increases to maintenance obligations and eviction procedures.
Key takeaway: The RTA applies to most residential rentals in Ottawa. Exceptions include: rentals where the landlord shares a kitchen or bathroom, seasonal/cottage rentals, and most commercial properties. If you're unsure whether the RTA applies to your situation, consult a legal professional — guessing wrong is expensive.
Since April 30, 2018, Ontario landlords must use the Ontario Standard Lease for most residential tenancies. This government-mandated form protects both parties by ensuring all necessary terms are clearly stated.
What you must include: Names of landlord and tenant, rental property address, rent amount and due date, what's included (utilities, parking, etc.), term of tenancy, and key rules about the property. If you fail to use the Standard Lease, tenants can withhold one month's rent — and you'll have to provide the proper form within 21 days.
Ontario caps annual rent increases for most properties. For 2026, the guideline is 2.5%. You must provide at least 90 days' written notice using the N1 form, and you can only increase rent once every 12 months.
⚠️ Important Exception: Rent Control Exemption
Properties first occupied (as residential units) after November 15, 2018 are exempt from rent control. For these newer properties, there is no maximum increase limit. This affects many new-build condos and houses in Ottawa's growing suburbs like Kanata and Barrhaven. Always verify your property's status before issuing an increase.
Under the RTA, landlords are legally required to maintain the rental property in a good state of repair and comply with all health, safety, housing, and maintenance standards. This is non-negotiable. Even if your tenant caused damage, you generally can't ignore repair obligations indefinitely.
Critical systems you must maintain: Heat (minimum 20°C from September to June), electricity, plumbing, hot water, structural integrity, and pest control. Failure to maintain these can result in tenants filing a T6 application with the Landlord and Tenant Board, potentially resulting in rent abatements, repair orders, and fines.
You cannot enter a tenant's unit whenever you want. Under the RTA, landlords must provide at least 24 hours' written notice before entering, and can only enter between 8:00 AM and 8:00 PM, for specific reasons.
Allowed reasons for entry: To perform repairs or maintenance, to show the unit to prospective tenants or buyers (after notice of termination), to conduct an inspection, or in an emergency (no notice required). For any other reason, including "just checking in," you need the tenant's consent.
Repeat this: Security deposits are illegal in Ontario. The only deposit you can collect is a last month's rent deposit (LMR), and it can ONLY be used for the last month's rent — not for damages, cleaning, or any other purpose. You must also pay the tenant annual interest on their LMR deposit at the rate equal to the rent increase guideline.
You can collect a reasonable key deposit, but it must be refundable and reflect the actual cost of replacing keys/fobs. A $200 "key deposit" for a $5 key won't fly with the LTB.
Self-help evictions — changing the locks, shutting off utilities, or physically removing a tenant — are illegal in Ontario and can result in massive fines and tenant compensation. Every eviction must go through the Landlord and Tenant Board (LTB).
Common eviction grounds and forms:
The process can take 3-6 months or longer, depending on LTB hearing availability. This is why proper tenant screening upfront is critical.
Ottawa Prime Properties handles legal compliance so you don't have to. From lease preparation to eviction support, we keep your investment protected.
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