DSCR Commercial Mortgage in Ontario: What Lenders Look For and How to Improve Your Ratio

DSCR stands for Debt Service Coverage Ratio. In Ontario commercial mortgage lending, it is the ratio of a property's annual Net Operating Income (NOI) to its annual debt service (total mortgage payments including principal and interest). The formula is: DSCR = Net Operating Income ÷ Annual Debt Service. A DSCR of 1.0x means the property generates exactly enough income to cover its mortgage. A DSCR of 1.25x means it generates 25% more income than needed. Lenders require a DSCR above 1.0x to confirm the property can service its debt.

DSCR is a property's net operating income divided by its annual debt service (mortgage payments). For example, if a property earns $120,000 in NOI and has $100,000 in annual debt service, its DSCR is 1.20x. Lenders set their own minimums, and we estimate yours before you apply. Try the DSCR calculator.

Bank and institutional lenders set their own minimums by property type, and retail and office files usually face stricter requirements than multi-unit residential. We confirm the lender's minimum for your property before you apply.

DSCR measures income coverage (can the property's income service the debt?). LTV (Loan-to-Value) measures equity (how much of the property value is being borrowed?). Both metrics are used in commercial mortgage underwriting. A property can pass LTV requirements but fail DSCR requirements, or vice versa. Lenders use both simultaneously. DSCR is typically the binding constraint for income-producing commercial properties in Ontario.

Five practical ways to improve DSCR before applying: (1) Increase rents, even modest rent increases materially improve NOI. (2) Reduce vacancy, improve occupancy to increase effective gross income. (3) Reduce operating expenses, renegotiate management fees, property tax appeals, insurance quotes. (4) Extend amortization, a longer amortization reduces annual debt service, improving the ratio. (5) Choose CMHC MLI Select financing, the 50-year amortization significantly reduces annual debt service on qualifying multi-family properties.

If your DSCR falls below institutional thresholds, several options exist: (1) Apply through a B-lender or private commercial lender with lower DSCR requirements. (2) Request a longer amortization to reduce annual debt service. (3) Provide additional collateral or a personal guaranty to offset the DSCR shortfall. (4) Explore CMHC MLI Select financing if the property is multi-family (5+ units); the extended amortization often resolves DSCR issues. (5) Increase rents or reduce expenses before re-applying. lendsimpl works with 50+ lenders including private commercial sources for below-standard DSCR situations.

CMHC sets its minimum debt coverage ratio by program, unit count and property type, and MLI Select files can qualify with lower minimums than many conventional lenders require. We confirm the current CMHC criteria for your file. See CMHC MLI Select.

In rare cases, yes, through private commercial lenders who lend based primarily on LTV (equity) rather than income coverage. Properties with DSCR below 1.0x are considered negative cash flow and carry higher risk. Private lenders will typically require lower LTV (60 to 65% max), shorter terms (1 to 2 years), and charge rates of 12 to 16%. This is a short-term strategy to allow the borrower time to stabilize the property's income before refinancing with a conventional or B-lender.