Free Tool

Ontario Rent Increase Calculator 2026

Apply the 2026 guideline of 2.1%, check whether your unit is rent-controlled, and work out the last month's rent deposit interest you owe.

Rent increase

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Last month's rent deposit interest

$

Before you raise the rent

  • — Give written notice on Form N1 at least 90 days before the increase date.
  • — You can only raise rent once every 12 months for the same tenant.
  • — The tenant must have been in the unit at least 12 months before the first increase.
  • — This tool is a guide only — it is general information, not legal advice.

Rent increase calculator FAQ

What is the Ontario rent increase guideline for 2026?

The 2026 guideline is 2.1%. For most rent-controlled units, that is the maximum increase in a 12-month period without applying to the LTB for an above-guideline increase.

How do I know if my unit is rent-controlled?

Units first occupied for residential purposes after November 15, 2018 are exempt from the guideline. Units occupied before that date are rent-controlled and capped at the guideline.

Can I raise the rent more than once a year?

No. Rent can only be increased once every 12 months for the same tenant, and only with 90 days written notice on Form N1.

Do I owe interest on the last month's rent deposit?

Yes. Interest accrues annually at the guideline rate (2.1% for 2026) and is either paid to the tenant or applied to top up the deposit after a rent increase.

Related guides

Ontario Rent Increase Guideline

How the guideline works, the N1 process, and which units are exempt.

Above-Guideline Rent Increase (AGI)

When and how to raise rent above the guideline through the LTB.

Last Month's Rent Deposit Ontario

Collecting the deposit, paying annual interest, and topping it up.

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