A fourplex in Hamilton and a five-unit building three doors down are financed under two different rule books. The fourplex is underwritten on your income. The five-unit building is underwritten on its own.
Multifamily financing in Canada is commercial mortgage financing for residential buildings with five or more self-contained units. The lender sizes your loan from the building's net operating income. Your salary barely enters the calculation. Two tests do the work: debt service coverage ratio (DSCR) and loan-to-value (LTV). The money can come from a CMHC-insured lender, a bank or credit union on conventional terms, or a private lender when the closing date will not wait.
That shift catches a lot of Canadian investors off guard, usually at the worst possible moment: after the offer has gone firm. The underwriting is not harder. It measures something else entirely, and the paperwork behind a building ends up carrying more weight than the building itself. When a deal needs speed more than perfect terms, private multifamily financing is often the bridge that gets it closed.
What multifamily financing means in Canada
Canadian mortgage lending splits at five units. Under that line, a building is residential. At five and above it is commercial multi-unit, and nearly every rule you know changes.
One to four units: your income carries the deal
On a duplex, triplex or fourplex, the lender qualifies you. Your gross debt service and total debt service ratios are calculated from personal income, the stress test applies, and a non-owner-occupied rental generally needs at least 20% down. Rental income helps, but the lender discounts it first. Once your personal ratios are maxed out, the next purchase stops, no matter how well the property performs.
Five units and up: the building carries the deal
Cross to five self-contained units and the question changes. It stops being "can you afford this?" and becomes "can this building afford this?" Underwriting moves to net operating income, debt service coverage, and an appraised value built from the income the building produces. Comparable sales down the street carry much less weight. Your credit and net worth still matter for covenant and character. They just stop being the ceiling.
That is the part most investors underestimate. A well-tenanted 12-unit can be easier to finance than your fourth rental condo, because the building brings its own income to the table and you are no longer the constraint on the file.
The four numbers that decide your loan size
Call it the 4-Number Multifamily Test. Every lender in this category, insured or private, runs some version of it before quoting anything.
1. Net operating income
NOI is annual rental revenue plus ancillary income such as parking, laundry and storage, minus operating expenses, before any mortgage payment. Lenders rebuild your NOI themselves. They normalise vacancy, add a management fee whether or not you self-manage, and strip out anything that looks like a one-time saving. Their number is almost always lower than yours.
2. Debt service coverage ratio
DSCR is NOI divided by annual mortgage payments. A ratio of 1.25 means the building earns 25% more than its debt costs. Conventional commercial lenders generally look for 1.20 to 1.30, and the big banks often want 1.25 to 1.40. CMHC's MLI Select program allows as low as 1.10 for projects at the top point tier, and 1.20 at lower tiers.
3. Loan-to-value
LTV measures the loan against the appraised value. DSCR and LTV run as parallel tests, and the smaller of the two answers wins. A building can appraise beautifully and still receive a reduced loan because the income will not carry the payment.
4. The appraised value itself
Commercial appraisals are income-based. The appraiser capitalises stabilised NOI at a market cap rate for that asset type and city. Purchase price does not set value here. If you paid more than the income supports, that gap comes out of your own pocket on closing day.
So run the arithmetic before you write the offer. A building producing $180,000 of NOI at a 1.25 coverage ratio supports roughly $144,000 of annual mortgage payments, and that figure is what a lender funds against, however much you like the building.
Your financing routes, compared
Four routes fund most Canadian multifamily deals. All four price a commercial mortgage off the same four numbers. What separates them is how much they will lend, how long they will lend it for, and how fast they can close.
| Route | Typical LTV | Amortization | DSCR expected | Best for |
|---|---|---|---|---|
| CMHC-insured (MLI Select) | Up to 95% for high-scoring projects | Up to 50 years | From 1.10 | Long-term holds and new rental construction |
| Bank conventional | Roughly 75% to 80% | 25 years typical | 1.25 to 1.40 | Stabilised buildings with clean financials |
| Credit union or B lender | Roughly 75% | 25 to 30 years | 1.20 to 1.30 | Files a bank finds slightly outside policy |
| Private mortgage | Commonly 60% to 75% | Interest-only, short term | Flexible, equity-led | Fast closings, repositioning, bridge to CMHC |
What CMHC insurance actually buys you
MLI Select scores a project on affordability, energy efficiency and accessibility, with a minimum of 50 points to qualify. Higher scores earn longer amortization, more borrowing room and premium discounts. Two recent updates matter for 2026: CMHC now allows modular construction across all of its multi-unit insurance products, and multi-unit premiums are priced by loan-to-value, loan purpose and shelter type following the last premium review, which lined up with updated capital rules from OSFI. The trade-off is time. An insured file runs on the insurer's calendar, not on your closing date.
Where private financing fits
Private lenders underwrite equity first. They can look past a messy rent roll, a vendor who will not produce proper statements, or a building sitting at 70% occupancy, because their protection is the security position rather than the coverage ratio. Terms are short and usually interest-only by design. The plan is to close, stabilise the building, then refinance into insured or bank money, and our guide to private mortgage exit strategies walks through how that handoff is structured. Most private multifamily money in Canada comes from mortgage investment corporations and individual investors, and who funds those mortgages shapes what a lender will accept on a commercial file.
Pick the route that matches your deadline. Terms you cannot close on are worth nothing.
Where multifamily deals fall apart
Honestly, the building is rarely the problem. The paperwork behind the building is.
The rent roll does not survive verification
Lenders check stated rents against leases, bank deposits and, on larger files, tenant estoppel certificates. Month-to-month tenancies with no written lease, rent collected in cash, and units occupied by family at a discount all get re-underwritten at market or removed entirely. That adjustment is expensive: at a 1.25 coverage ratio, a $10,000 reduction in NOI costs you $8,000 of annual debt service capacity.
Reports take longer than closing dates
Older buildings usually need a Phase I environmental site assessment and a building condition report. On a 1960s walk-up with a former dry cleaner at grade, a Phase I can trigger a Phase II, and that timeline is measured in weeks. Order both the day the offer goes firm. Waiting until the week before closing is how firm deals collapse.
The vendor's financials are not lender-ready
Small landlords often run a building through a personal tax return with no separate statements, mixed personal expenses and no capital expenditure history. You will be asked for two years of operating statements, a current rent roll, signed leases, property tax and utility bills, and an insurance certificate. If the vendor cannot produce them, either price that risk into your offer or plan on private financing from the start.
The refinance was never planned
Bridge money works when there is a documented path off it: rents stabilised, clean statements built, and an insured or bank application already in motion. Without that path, month 11 arrives and nobody is ready. Our application process sets out what a lender asks for and when it is needed.
Solid Capital is a Canadian alternative lender working with business owners, homeowners and property investors the big banks decline or under-serve. We read the whole file: the rent roll, the deposits, the plan for the building. A credit score is one input among many, and a Canadian advisor reviews every application personally. If your building has a firm closing date and the bank has a queue, start an application. It takes about five minutes, and there is no impact to your credit to apply.
Buy the income, not the building. Verify the rent roll before your offer goes firm, order the reports early, and decide up front whether this deal is being financed for speed or for terms. You rarely get both. Get that one choice right and the rest is arithmetic.
Frequently Asked Questions
What counts as a multifamily property in Canada?
In lending terms, a multifamily property is a residential building with five or more self-contained units. Buildings with one to four units are financed under residential mortgage rules based on your personal income and debt ratios. At five units, financing moves to commercial multi-unit rules underwritten on the building's own income.
How much down payment do you need for a 5+ unit building in Canada?
It depends on the route. Conventional commercial lenders generally fund roughly 75% to 80% of appraised value, so plan on 20% to 25% equity. CMHC-insured MLI Select financing can reach a much higher loan-to-value for projects that score well on affordability, energy efficiency and accessibility. Private lenders typically sit lower, commonly 60% to 75%.
What DSCR do multifamily lenders require in Canada?
Conventional commercial lenders generally want a debt service coverage ratio between 1.20 and 1.30, and the big banks often ask for 1.25 to 1.40. CMHC's MLI Select allows as low as 1.10 for top-tier scoring projects and 1.20 at lower tiers. DSCR is net operating income divided by annual mortgage payments.
Can you get multifamily financing with bad personal credit?
In many cases, yes. Commercial multi-unit underwriting weights the building's income and your equity position more heavily than a personal credit score. Weak credit narrows the options and usually moves the file toward a credit union, B lender or private lender rather than a bank, but on its own it is not an automatic decline.
How long does multifamily financing take to close in Canada?
Private financing on a clean file can fund within days to a few weeks. Conventional bank or credit union financing generally runs four to eight weeks once the appraisal and reports are ordered. CMHC-insured applications take longest, because the insurer reviews the file after the lender does, so plan in months, not weeks.
Can a private mortgage be used for an apartment building?
Yes. Private lenders finance buildings with five or more units regularly, usually as short-term interest-only mortgages for a purchase that has to close quickly, a repositioning, or a bridge to CMHC-insured financing. Loan-to-value is normally lower than bank financing, and your exit plan matters as much as the property itself.
