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Ontario Rent Increase Calculator

1

Determine Rent Control Status

This is when the building/unit was FIRST occupied as a residence (not when your current tenant moved in). Buildings built and occupied before Nov 2018 are subject to rent control.

2

Enter Current Rent

$
3

Select Year & Dates

Leave blank if never increased

How Ontario Rent Increases Work

In Ontario, landlords must follow specific rules when increasing rent for residential tenants. The Ontario government sets an annual rent increase guideline that limits how much rent can be raised for most units.

Annual Guideline Rate

The guideline is the maximum percentage a landlord can raise rent without approval from the Landlord and Tenant Board (LTB). For 2026, the guideline is 2.1%. This rate is based on the Ontario Consumer Price Index (CPI).

Rent Control Exemptions

Not all rental units are subject to rent control. Units that were first occupied for residential purposes on or after November 15, 2018 are exempt from the guideline. For these units, landlords can increase rent by any amount (though still must provide 90 days notice).

Required Notice Period

Landlords must provide tenants with written notice of a rent increase at least 90 days before the increase takes effect. The notice must be on the official N1 form and include the new rent amount and effective date.

Ontario Guideline Rates

2027
1.9%Announced, from Jan 1
2026
2.1%Current
2025
2.5%
2024
2.5%
2023
2.5%

Key Rules

  • 90 days written notice (N1 form)
  • Once every 12 months only
  • Above-guideline needs LTB approval
After the calculation

Calculate, then serve the notice.

The math is the easy part. The N1 form, the 90-day clock, the tenant portal — all waiting in Tenon10.

Ready for the full platform?

Unlimited properties.
Zero monthly fee.

You just calculated your rent increase for free. Everything else Tenon10 does — leases, rent collection, maintenance, LTB forms — is also free on the core plan.