Calculate Debt Service Coverage Ratio instantly for any CRE deal. Enter your Net Operating Income and annual debt service to get your DSCR, plus guidance on what lenders look for at every ratio level.
Debt Service Coverage Ratio measures a commercial property's ability to cover its debt obligations from operating income. It is calculated by dividing Net Operating Income (NOI) by total annual debt service (principal plus interest payments). A DSCR of 1.0x means the property generates exactly enough income to cover its debt — with no margin of safety. Most CRE lenders require a minimum DSCR between 1.20x and 1.35x depending on property type, market, and borrower strength.
DSCR = Net Operating Income / Annual Debt Service. For example, a multifamily property with $600,000 in NOI and $450,000 in annual debt service has a DSCR of 1.33x. This means the property generates 33% more income than needed to cover its loan payments — a comfortable cushion for most lenders.
DSCR requirements vary by lender, property type, and market conditions. Most conventional CRE lenders require a minimum DSCR of 1.20x to 1.25x. SBA 504 loans typically require 1.15x or higher. For stabilized multifamily properties in strong markets, some lenders will go as low as 1.15x. Office and retail properties in transitional markets may require 1.35x or higher to account for vacancy and rollover risk. Private credit teams often have more flexibility, but still want to see at least 1.20x on most deals.
DSCR directly impacts your loan-to-value ratio, interest rate, and loan sizing. A higher DSCR gives lenders confidence that the property can weather vacancies, operating expense increases, or interest rate changes. Deals with a DSCR above 1.50x often qualify for better pricing, higher LTV, and longer amortization. When DSCR is tight (below 1.25x), lenders may require additional collateral, personal guarantees, or interest reserves. AI-powered underwriting platforms like LenderBox calculate DSCR automatically as part of the credit memo process, flagging any deals that fall below your institution's minimum threshold before they reach committee.
Most CRE lenders require a minimum DSCR of 1.20x to 1.25x. A DSCR of 1.25x means the property generates 25% more income than needed to cover debt service. Stabilized multifamily in strong markets may qualify at 1.15x, while office and retail properties typically need 1.30x or higher due to vacancy risk.
Net Operating Income equals gross rental income minus operating expenses (property taxes, insurance, maintenance, management fees, and utilities). Do not subtract debt service — that is what DSCR measures. Use trailing 12-month actuals for stabilized properties or underwritten projections for value-add deals.
A DSCR below 1.0x means the property does not generate enough income to cover its debt payments. Most lenders will not approve a loan at this level. Options include restructuring the deal with a lower loan amount, negotiating a lower interest rate, extending the amortization period, or providing additional collateral or cash reserves to bridge the gap.
LenderBox calculates DSCR, debt yield, LTV, and dozens of other metrics automatically from uploaded documents. Stop spreading rent rolls manually.
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