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Financing a plex of 2 to 5 units: down payment and rents

A duplex is treated like a house; a triplex or fourplex needs 10%; at 5 units you leave the small-building rules. A $700,000 example.

Mathieu St-Onge · Published October 13, 2026Sources: CMHC, Purchase mortgage loan insurance. CMHC, self-employed borrowers, price limits and down payments. Reviewed October 13, 2026.

The short answer

The rules by building size (CMHC, insured loan)

BuildingOwner-occupiedMinimum down paymentMaximum loan
1 or 2 unitsYes5% of the first $500,000 + 10% of the rest95%
3 or 4 unitsYes10%90%
2 to 4 unitsNo (rental)20%80%
5 units and over—Depends on the lenderDepends on the lender

Other limits for an occupant: price or value under $1,500,000, 25-year amortization, debt ratios of 39% (gross) and 44% (total). For a rental building with no occupant, the price ceiling is $1,000,000.

How rents count

The lender adds part of the rents to your income, or offsets them against your costs. The share used and the method vary by lender: you confirm it in the file, not in a table.

An example: a $700,000 triplex

Frequently asked questions

Do I have to live in the building?

For the lowest rates and down payments, yes. A fully rented building is financed with 20% down or more.

Is a five-unit building residential?

It is financed differently: it leaves CMHC’s small-building program (1 to 4 units). The lender analyzes the building and its income.

Are the current rents enough?

The lender looks at the leases, the history and the market. A vacant unit or one under market rent may be adjusted.

How I can help

Read the rental property guide