Published 2025-11-22 · Last updated 2026-01-19 · Reviewed by Valzura Editorial Team
DSCR Calculator
Check whether a business earns enough to cover its loan payments.
The debt service coverage ratio (DSCR) measures whether a business generates enough income to cover its debt payments. It equals net operating income divided by total debt service (annual principal plus interest). A DSCR of 1.0 means income exactly covers the payments, while lenders typically require 1.25 or higher so there is a cushion. For example, 250,000 dollars of net operating income against 200,000 dollars of debt service produces a DSCR of 1.25, the common minimum for an SBA or commercial acquisition loan.
Annual income available to service debt, before loan payments and taxes.
Total annual principal and interest on all business loans.
Enter your net operating income and annual debt service to calculate DSCR.
Reading the ratio
A DSCR of exactly 1.0 means the business earns just enough to cover its debt payments with nothing to spare. Lenders build in a margin of safety, so most require 1.25 or higher, which means income exceeds the payments by 25 percent. Below 1.0, the business cannot service its debt from operations, and financing is almost always declined. The stronger and more stable the ratio, the better the loan terms a borrower can command.
What counts as net operating income
Net operating income for DSCR is the cash the business generates before financing costs and taxes, usually operating profit adjusted for non-cash charges and reasonable owner add-backs. This is the same normalization that a EBITDA calculation applies, so a lender's coverage test and a valuation of the business rest on the same underlying earnings figure. Inflating the income to clear the ratio only backfires when the lender re-derives it during underwriting.
Pairing DSCR with your loan terms
Debt service is the output of an amortization schedule, so the ratio moves with the loan amount, rate, and term. If your DSCR comes in below 1.25, a longer term lowers the annual payment and lifts the ratio. Model the payment on the business loan calculator or the SBA loan calculator, then confirm the price behind the loan with the free valuation calculator.
Frequently Asked Questions
What is a good DSCR?
Most banks and SBA lenders want a debt service coverage ratio of at least 1.25, meaning income exceeds debt payments by 25 percent. A ratio below 1.0 means the business cannot cover its debt from operations, and lenders will usually decline. Stronger deals often show 1.5 or higher.
How do you calculate DSCR?
Divide net operating income by total annual debt service. Net operating income is the income available before financing costs and taxes; debt service is the total of principal and interest due over the year on all business loans. A result of 1.25 means the business earns 1.25 dollars for every 1 dollar of debt payment.
What counts as net operating income for DSCR?
Net operating income is the earnings available to service debt, typically operating profit before interest and taxes, often adjusted for non-cash items and owner add-backs. Lenders normalize this figure the same way a valuation adjusts EBITDA, so the DSCR reflects sustainable cash flow rather than one-off results.
Why do lenders use DSCR instead of the loan amount?
The loan amount tells a lender how much is at risk, but DSCR tells them whether the business can actually make the payments. A large loan against strong, stable cash flow is safer than a small loan against thin earnings, so DSCR is the primary test for approving business and commercial real estate loans.
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