Ontario rent increase calculator (2026 and 2027 guideline)
Work out the most a landlord can raise rent under Ontario's rent increase guideline, the date written notice is due (90 days before), and whether 12 months have passed since the last increase. Everything runs in your browser; nothing you type is sent anywhere.
Fill in the form and press Calculate.
Ontario rent increase guidelines
| Year | Guideline | Example on $2,000/month |
|---|---|---|
| 2027 | 1.9% | +$38.00 = $2,038.00 |
| 2026 | 2.1% | +$42.00 = $2,042.00 |
| 2025 | 2.5% | +$50.00 = $2,050.00 |
The rules this calculator uses
All of these are from the Government of Ontario page Residential rent increases (ontario.ca, page updated June 23, 2026). Last verified: 2026-11-09.
- Rent can usually be increased only if at least 12 months have passed since the last rent increase or the date the tenancy began.
- The landlord must give the tenant written notice in the proper form at least 90 days before the increase takes effect. The forms come from the Landlord and Tenant Board.
- The guideline is the most a landlord can raise most tenants' rent in a year without the Board's approval. It is capped at 2.5%.
- The guideline does not apply to new buildings, additions to existing buildings and most new basement apartments first occupied for residential purposes after November 15, 2018, among other exceptions listed on the page.
Worked example from the same page: rent of $1,000 from June 1, 2026 can go up by 1.9% ($19.00) to $1,019.00 on June 1, 2027, with written notice at least 90 days before.
Official notice form: N1
The Landlord and Tenant Board publishes N1 – Notice of Rent Increase on its Forms, filing and fees page (tribunalsontario.ca), listed under "Notices of rent increase for landlords". Direct downloads from that page: N1 form (PDF) and N1 instructions (PDF). The same list also has N2 – Notice of Rent Increase (Unit Partially Exempt). Check which form fits your unit on the Board's page. Links last verified: 2026-11-09.
How to fill in the N1
See the field-by-field N1 guide, a summary of the Board's own instructions. After you calculate, the result above links to it with your dates and amounts filled in.
Keeping track of renewals and notice dates
If you manage several units, a paid spreadsheet by Kyle Falk (Lease & Renewal Tracker) lists every lease with its renewal and notice dates in one place. This calculator stays free either way.
Related workbook
To record rent received and expenses for each property over the year, see the Rental Property Income & Expense Tracker, a paid spreadsheet by Kyle Falk. The Small Landlord Records Bundle includes it with three other landlord record sheets. This page stays free either way.