Ontario's 2027 Rent Increase Guideline Is 1.9% — What Landlords and Tenants Need to Know Before October
August 16, 2026 If you own a rental property in Ontario — or rent one — mark October 3 on your calendar. That's the earliest a landlord can legally serve notice for a rent increase that takes effect January 1, 2027, and it's the practical starting gun for a guideline that's quietly gotten tighter for the third year in a row. The province has set the 2027 rent increase guideline at 1.9% , down from 2.1% in 2026 and well off the 2.5% legal ceiling that held for three straight years before that. It's the lowest guideline Ontario has published in years — and while that sounds like a straightforward win for tenants, the real story for both sides is in the timing, the exemptions, and what a below-inflation-feeling number actually does to a landlord's math. What It Means for You Landlords: the earliest you can serve a valid N1 notice for a January 1, 2027 increase is October 3, 2026 — 90 days' notice is mandatory. Tenants: a 1.9% cap only applies if your unit is rent...
