Debt service coverage ratio (DSCR): the number your lender cares about most

The definition

DSCR is net operating income divided by annual debt service. A 1.25x DSCR means the property throws off 25% more income than the mortgage payment. Lenders set minimums — often around 1.20x to 1.30x on stabilized retail — because it's their margin of safety.

Applied to retail investment property

DSCR is where your NOI, your rate, and your leverage collide. Push leverage too high or buy at too thin a yield relative to your rate, and the coverage gets tight — which limits your loan, raises your risk, and leaves no cushion if a tenant hiccups.

What to watch out for

• Thin coverage means fragility: one vacancy or one expense surprise can push you below breakeven and into a personal cash-call.
• Rising rates compress DSCR at refinance even if the property never changed — underwrite the exit loan, not just today's.

How to leverage it as a strength

Coverage headroom is optionality. A deal that comfortably clears its DSCR can carry a tenant gap, absorb a rate move, or support a cash-out later. Solve for a coverage cushion, not just the maximum loan the lender will allow.

Best case vs. worst case

• Best case: healthy coverage on durable income lets you weather surprises and refinance on your terms.
• Worst case: you stretched for leverage, a tenant leaves or rates rise, coverage breaks, and you're feeding the property or selling at the wrong time.

General education, not investment or lending advice.