Debt Service Coverage Ratio (DSCR): What It Is and How Lenders Use It

DSCR in one line

Debt service coverage ratio = net operating income ÷ total annual debt payments. A DSCR of 1.25 means you earn $1.25 for every $1.00 of loan payments. Below 1.0 means you cannot cover payments from operations. Banks and SBA lenders typically require 1.15–1.35; alternative funders use a simpler version based on daily or monthly bank deposits.

How to calculate it

Net operating income is revenue minus operating expenses, before interest, taxes, depreciation, and amortization (often approximated as EBITDA). Total debt service is principal plus interest on every business loan, line, lease, and advance for the year — including the new one you are applying for.

Example: $600,000 revenue, $480,000 operating expenses → $120,000 NOI. Existing debt payments $40,000/year, proposed loan $50,000/year → $90,000 total debt service. DSCR = 120,000 ÷ 90,000 = 1.33.

How DSCR caps your loan amount

Lenders work backward. If they require 1.25 and your NOI is $120,000, your maximum total debt service is $96,000 per year. Subtract existing payments of $40,000 and you have $56,000 per year available for a new loan — about $190,000 over 5 years at 15%. This is why two businesses with identical revenue can be approved for very different amounts: existing debt eats coverage.

How alternative funders think about it

Revenue-based funders rarely compute formal DSCR. Instead they cap the daily or weekly payment at a percentage of average daily deposits — commonly 10–20% — and check that existing advance payments plus the new one stay under that ceiling. Same concept, measured in cash rather than accrual income.

Five ways to improve DSCR before applying

• Pay off or consolidate a high-payment advance — reducing debt service helps more than adding revenue.
• Extend the term of the new loan to lower the annual payment (longer term, lower DSCR impact).
• Add back legitimate one-time expenses and owner compensation above market in your P&L presentation; lenders allow add-backs.
• Defer discretionary spending for a quarter so recent months show stronger NOI.
• Ask for less. A smaller request at 1.4 coverage is approved; a larger one at 1.1 is declined.