What Is Debt Service Coverage Ratio (DSCR)?
Before a lender looks at your credit score, your collateral, or your business plan, they look at one number: whether your business generates enough cash to cover its debt payments. That number is the debt service coverage ratio, and it's arguably the single most influential figure in any commercial loan decision.
The Formula
DSCR = Net Operating Income ÷ Total Debt Service. Net Operating Income (NOI) starts with revenue, subtracts operating expenses, and adds back non-cash charges like depreciation and amortization — the idea being to measure actual cash available, not accounting profit. Total Debt Service includes every principal and interest payment on existing business debt, plus the payment on the new loan you're requesting.
Reading Your Own Ratio
A DSCR of exactly 1.0 means your business generates precisely enough cash to cover its debt payments, with nothing left over — a razor-thin margin most lenders consider too risky. A DSCR of 1.25 means your cash flow covers your debt payments with 25% to spare, which is the rough minimum most SBA lenders look for. A DSCR of 1.5 or higher is considered strong, signaling comfortable room for a bad month or an unexpected expense without missing a payment.
Why Lenders Weight It So Heavily
Collateral and credit scores matter, but they primarily protect the lender if something goes wrong. DSCR speaks to whether something is likely to go wrong in the first place — it's a forward-looking measure of whether the business can actually service the debt from ordinary operations, not just whether the borrower is trustworthy on paper.
How to Improve Your DSCR Before Applying
A handful of levers move this number directly: paying down existing debt reduces total debt service, cutting discretionary operating expenses raises NOI, and requesting a longer loan term (even at a slightly higher total interest cost) lowers the new payment and therefore the denominator. Many businesses run these scenarios before applying to see which lever gets them comfortably above their target ratio.
Frequently Asked Questions
How is DSCR calculated?
DSCR = Net Operating Income divided by Total Debt Service, with NOI generally being revenue minus operating expenses plus non-cash addbacks.
What counts as "total debt service"?
All principal and interest payments on existing business debt, plus the payment on the new loan being applied for.
What DSCR is considered good?
1.25 or higher is generally good, and 1.5 or above is considered strong.
What happens if my DSCR is below 1.0?
Most lenders will decline the loan, since cash flow doesn't cover debt obligations on paper at that ratio.
Can I improve my DSCR before applying?
Yes — paying down debt, increasing revenue, cutting expenses, or extending the loan term can all help.
Check your own DSCR before you apply.
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