Do Landlords Have to Justify a Rent Increase in Ontario?

Estimated reading time: 6 minutes

In most cases, an Ontario landlord does not have to provide a separate explanation or justification for a standard lawful rent increase.

What matters legally is whether the increase is permitted and whether the landlord has followed the applicable timing, notice, form and rent-control requirements.

An Above-Guideline Increase is different. An AGI requires an application to the Landlord and Tenant Board and must be based on one or more of the grounds permitted under Ontario's Residential Tenancies Act .

This article focuses specifically on the difference between legally justifying a rent increase and choosing to explain one to a tenant. For the full rules on timing, notices, rent control and exemptions, see our Ontario Rent Increase Guide .

Does a landlord have to explain a standard rent increase?

Generally, no. Ontario's rent increase rules do not require a landlord to write a separate letter explaining why they are taking a standard lawful guideline increase.

Instead, the landlord must comply with the legal requirements that apply to the tenancy. In most cases, that means making sure enough time has passed since the tenancy began or the previous lawful increase, giving the required written notice, and using the appropriate Landlord and Tenant Board form. Ontario generally requires at least 12 months between rent increases and at least 90 days' written notice. :chatgpt-content-reference{index="1"}

For a rent-controlled tenancy, the increase must also stay within the applicable annual guideline unless another lawful mechanism applies.

In other words, the landlord does not need to justify a standard increase by pointing to higher mortgage payments, insurance premiums, maintenance costs or inflation. The legal basis is the rent increase framework itself.

What should landlords focus on instead?

The more important question is not whether the landlord has written a persuasive explanation. It is whether the rent increase itself has been handled correctly.

Before serving notice, landlords should confirm:

• When the tenancy began or when the previous lawful rent increase took effect;
• Whether at least 12 months will have passed before the new increase takes effect;
• Whether the unit is subject to Ontario's annual rent increase guideline;
• Which annual guideline applies to the effective date;
• Which Landlord and Tenant Board notice should be used; and
• Whether the tenant will receive at least 90 days' written notice.

Landlords can use LandLord's Ontario Rent Increase Calculator to calculate an eligible guideline increase.

Should a landlord explain the increase anyway?

Sometimes it makes sense to do so, even when it is not legally required.

A tenant who has lived in a property for several years may appreciate a brief heads-up before receiving the formal notice. The same can be true where the landlord and tenant have regular direct contact or a longstanding relationship.

The purpose of that communication is not to create a separate legal justification for the increase. It is simply to communicate clearly and professionally.

A short explanation can acknowledge that the rent is changing, identify the effective date and let the tenant know that the formal notice is being provided in accordance with Ontario's requirements.

Keep the conversation separate from the formal notice

An informal conversation, email or text does not replace the formal rent increase process.

If a landlord chooses to give the tenant a personal heads-up, the proper written notice should still be completed and served as required.

Keeping the two separate also reduces ambiguity. The informal communication explains what is happening; the formal notice establishes the amount, effective date and legal record of the increase.

This becomes especially important when a landlord and tenant have become friendly over a long tenancy. A good relationship does not change the legal requirements that apply to the tenancy.

What should landlords avoid saying?

Landlords do not need to build a case for a routine guideline increase, and doing so can sometimes make a straightforward process more complicated.

In particular, landlords should be cautious about:

• Describing a routine increase as though the tenant must agree to it;
• Suggesting that the increase is legally justified because the landlord's mortgage or other personal expenses increased;
• Making promises about future rent that have not been carefully considered;
• Giving an informal message instead of the required formal notice; or
• Describing a standard guideline increase as an Above-Guideline Increase.

Clear, factual communication is usually better than a lengthy explanation.

Above-Guideline Increases are different

An Above-Guideline Increase, commonly called an AGI, is not simply a larger version of a standard annual increase.

A landlord seeking an AGI must apply to the Landlord and Tenant Board using Form L5. The current L5 instructions identify three grounds for an application:

• An extraordinary increase in municipal taxes and charges;
• Operating costs for security services that are new or have increased; or
• Eligible capital expenditure work completed at the residential complex.

The L5 application must generally be filed at least 90 days before the first intended effective date identified in the application. :chatgpt-content-reference{index="2"}

Higher mortgage payments, ordinary increases in insurance or utilities, general inflation, or a desire to bring an existing tenant's rent closer to market rent are not themselves listed grounds for an AGI.

Landlords considering an Above-Guideline Increase should review the current L5 application instructions before proceeding.

Does an AGI need to be explained to the tenant?

An AGI involves a formal application and supporting information rather than merely a landlord telling the tenant why costs have increased.

From a communication perspective, however, explaining the basis of the application can still be useful. If major capital work has taken place or municipal costs have increased significantly, giving the tenant accurate context may help them understand why the landlord has applied.

The distinction is important: a landlord's explanation does not itself make an AGI valid. Eligibility and the amount that may ultimately be permitted are determined through the applicable legal process.

What if the landlord is not sure whether to increase the rent?

Whether a landlord is legally entitled to increase rent and whether taking the full available increase makes financial sense are separate questions.

Tenant retention, market rent, vacancy risk and turnover costs can all affect that decision.

That broader financial question is covered separately in Should You Raise Rent? A Decision Framework for Toronto Landlords .

Keep a clear record of the increase

Regardless of whether the landlord chooses to explain the increase, documentation matters.

Keep a copy of the formal notice, the calculation used to determine the new rent, the effective date and evidence showing when and how the notice was served.

If there was additional communication with the tenant, retaining that correspondence with the tenancy records can also help avoid confusion later.

The bottom line

Ontario landlords generally do not need to provide a separate justification for a standard lawful rent increase.

The landlord's responsibility is to make sure the increase itself is lawful: the timing must be correct, the appropriate notice must be used, and the amount must comply with the rules that apply to the rental unit.

A landlord can still choose to explain the increase as a professional courtesy, particularly in a long-term tenancy. That communication should support the formal process, not replace it.

Frequently Asked Questions

Do landlords have to justify a rent increase in Ontario?

Generally, no. A standard lawful rent increase does not usually require the landlord to provide the tenant with a separate explanation. The landlord must instead comply with the applicable timing, notice, form and rent-control requirements.

Does a tenant have to agree to a rent increase?

A standard lawful rent increase does not depend on the tenant signing a new lease or separately agreeing to the increase. The landlord must follow Ontario's legal rent increase process.

Can a landlord explain the increase to the tenant?

Yes. A landlord can choose to provide a brief explanation or advance notice as a courtesy, particularly in a long-term tenancy. That communication does not replace the required formal notice.

Does a landlord's mortgage increase justify a higher rent increase?

No. A higher mortgage payment does not by itself allow a landlord to exceed the annual guideline for a rent-controlled tenancy.

Is an Above-Guideline Increase different from a regular rent increase?

Yes. An AGI requires an application to the Landlord and Tenant Board and must be based on one or more permitted grounds, such as an extraordinary increase in municipal taxes and charges, qualifying security-service costs or eligible capital expenditures.

Where can landlords learn the full Ontario rent increase rules?

See LandLord's Ontario Rent Increase Guide for the broader rules on timing, notice, rent control, forms, exemptions and Above-Guideline Increases.

This article provides general information about Ontario residential tenancies and is not legal advice. Requirements can vary depending on the property and tenancy. Confirm the current Residential Tenancies Act and Landlord and Tenant Board requirements before serving a rent increase notice.