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DSCR

Debt service coverage ratio

DSCR is net operating income divided by annual debt service. At 1.00 the property exactly covers its own mortgage; above that there is a margin. It is the metric a commercial or DSCR-loan underwriter cares about most, because it measures the property's ability to pay the loan without the borrower's paycheque.

DSCR = NOI ÷ annual debt service

Worked example

$19,310 of NOI against $15,469 of annual payments is a DSCR of 1.25 — right at the floor most lenders quote.

Rental metric examples use the default $265,000 duplex at $2,650 monthly rent, 25% down and 6.75% over 30 years. Strategy and tax examples use the assumptions stated above rather than that rental deal.

The mistake to avoid

Computing NOI without a vacancy allowance or reserves to clear a lender threshold. The underwriter re-runs it with their own assumptions, and the deal comes back short at the worst possible moment.

Where this is calculated

The dscr calculator computes this from your own numbers and shows the arithmetic expanded. Debt service coverage ratio against real lender thresholds, plus the loan amount your NOI will actually support.

Related terms

Back to the full glossary — 21 terms with formulas and worked examples.