How rental property mortgages differ from owner-occupied mortgages
Rental property mortgages in Canada are treated differently from owner-occupied mortgages in several important ways. The minimum down payment is higher — 20% for investment properties with 1-4 units, compared to 5% for owner-occupied. Mortgage default insurance is not available for pure investment properties, which is why the 20% minimum exists.
Rates are also different. Rental property mortgages typically carry a rate premium of 0.20% to 0.50% above equivalent owner-occupied rates. This reflects the lender's view that investment properties carry higher risk — if a borrower faces financial difficulty, they are more likely to default on the rental property mortgage than on their primary residence.
The good news is that rental income can be used to help you qualify. Lenders will add a portion of the expected rental income to your total income for debt-service calculations. The exact percentage varies by lender and insurer, but 50-80% of the gross rental income is typical. Some lenders will also consider the rental income from the property you are purchasing (using market rent estimates) in addition to any existing rental properties you own.
DSCR explained — how lenders measure rental property cash flow
The Debt Service Coverage Ratio (DSCR) measures whether a rental property's income covers its costs. Lenders calculate it by dividing the property's net operating income by its total debt service (mortgage payments, property tax, heating, and half of condo fees if applicable). A DSCR of 1.0 means the property breaks even — income exactly covers costs. Most lenders want a DSCR of 1.10 to 1.25, meaning income exceeds costs by 10-25%.
Here is a concrete example: A triplex generates $4,500 in monthly gross rent. The lender may use 80% of that ($3,600) as qualifying rental income due to vacancy and maintenance allowances. If the monthly mortgage payment is $2,200, property tax is $350, heating is $200, and insurance is $150, total monthly costs are $2,900. DSCR = $3,600 / $2,900 = 1.24 — just above the typical 1.10-1.25 threshold.
If your DSCR is below the lender's threshold, you can improve it by increasing the down payment (which reduces the mortgage amount and monthly payment), finding a property with higher rents, or choosing a lender with more flexible DSCR requirements. Some alternative lenders accept DSCR as low as 1.0 if the borrower has strong personal income to cover any shortfall.
- DSCR = Net Operating Income / Total Debt Service
- Typical lender requirement: 1.10 to 1.25x
- Net Operating Income = gross rent × (50-80% depending on lender)
- Total Debt Service = mortgage payment + property tax + heat + 50% condo fees
- Improve DSCR by: larger down payment, higher-rent property, or flexible lender
Financing multi-unit properties — 2-4 units vs 5+ units
Properties with 2-4 units sit in a sweet spot: they can be financed with residential mortgages, including insured mortgages if you occupy one of the units. This means you can buy a triplex with as little as 5% down if you live in one unit and rent the other two. The rental income from the other units can be used to help you qualify, often making a multi-unit purchase more affordable than buying a single-family home and a separate investment property.
Properties with 5 or more units require commercial mortgage financing. Commercial mortgages have different rules: down payments of 25-35% are typical, rates are higher, terms are shorter (often 1-5 years with 20-25 year amortizations), and qualification is based primarily on the property's net operating income rather than your personal income. Commercial loans also require professional appraisals, environmental assessments for some properties, and more extensive documentation.
CMHC's MLI Select program offers preferential mortgage insurance pricing for rental properties (5+ units) that meet criteria in affordability, accessibility, or climate compatibility. The program can reduce insurance premiums by up to 50% and extend amortizations to 50 years — significantly improving cash flow for qualifying properties.
Tax considerations for rental property owners in Canada
Rental property ownership has significant tax implications. Rental income is taxable, but you can deduct mortgage interest (not principal), property tax, insurance, repairs and maintenance, property management fees, utilities (if you pay them), and capital cost allowance (CCA — depreciation on the building). These deductions can turn a cash-flow-positive rental into a tax loss, reducing your overall tax burden.
When you sell a rental property, the capital gain (sale price minus purchase price and eligible costs) is taxable — 50% of the gain is added to your income and taxed at your marginal rate. The principal residence exemption does not apply to rental properties. If you have claimed CCA, the recapture is fully taxable in the year of sale, which can create a substantial tax bill.
Many landlords hold rental properties in their personal names initially and later incorporate as their portfolio grows. Incorporation offers liability protection and potential tax deferral advantages, but also comes with higher accounting costs and different mortgage qualification rules (corporate mortgages typically require personal guarantees). This is a decision to make with both a mortgage broker and an accountant.
