How to finance a Toronto multiplex in 2026 — from fourplex mortgages to CMHC MLI Select

The financing is where most multiplex plans either come alive or quietly die. The good news: in 2026, small rental buildings are the asset class Ottawa most wants built, and the lending programs reflect it. Here is how the stack actually works, from a basement-suite duplex to a six-unit building — written for Toronto owners and investors, not mortgage brokers.

The dividing line: 4 units vs 5+

Everything in multiplex financing hinges on one number. Buildings with up to 4 self-contained units live in the residential mortgage world — familiar lenders, familiar paperwork. At 5 units and above you cross into commercial/multi-unit territory, which sounds scarier but is where the most generous program in Canada lives: CMHC MLI Select.

Financing 1–4 units: the residential routes

• Owner-occupied with up to 4 units: insured (high-ratio) mortgages are available with the strongest terms in the market — this is the classic “live in one, rent three” play, and the insured price cap was raised to $1.5M in late 2024, which finally fits Toronto fourplex values.
• Investor-owned (not living there): typically conventional financing at 20–25% down, with rental income helping you qualify. Rates and treatment vary meaningfully by lender — this is where a broker earns their fee.
• Building or converting: a construction facility funds the build in draws; when the building is finished and tenanted, you refinance (“take out”) into long-term financing based on the completed, income-producing value — often recovering much of your invested capital.

Financing 5–6 units: CMHC MLI Select

MLI Select is CMHC’s multi-unit insurance program for buildings with 5 or more self-contained units — which is exactly what Toronto’s new sixplex permissions produce. It scores your project on three dimensions — affordability, energy efficiency and accessibility — and the more points you earn, the better your leverage and amortization get.

• Points come from commitments: e.g. keeping a share of units at affordable rents (roughly 30% of median renter income) for at least 10 years, hitting energy-efficiency targets above code, or building accessible units.
• Tiers at 50 / 70 / 100 points unlock progressively better terms — headline benefits reach up to ~95% leverage and amortizations of 40–50 years at the top tiers.
• Longer amortization + higher leverage = dramatically lower monthly debt service — the difference between a building that carries itself and one that doesn’t.
• The trade-off is real: affordability commitments bind you for a decade or more, and CMHC premiums have been rising (a mid-2025 revision added surcharges for extended amortizations). The math still often wins — but it must be run, not assumed.

What lenders actually look at

• The completed building’s rental income — bring a credible rent schedule, not hopes.
• Your cost budget and contingency — lenders discount optimistic budgets on sight.
• The exit: what the finished building appraises at, and what the take-out mortgage looks like at today’s rates.
• You: net worth, liquidity, and experience — or a development partner who supplies the experience piece.

How we set clients up

Our feasibility model is built the way a lender reads it: unit mix, rent schedule, cost budget, timeline, and the financing stack — including whether stretching to 5–6 units and MLI Select beats a fourplex on your lot. Programs and premiums change; we confirm current terms with your broker or ours as part of the work. Nothing here is mortgage advice — it’s the map, so the advice makes sense when you get it.