When a business takes on additional debt capacity, it’s going to need to earn higher profits in its income statement to cover the debt obligations. Maintaining a healthy Total Debt Service (TDS) ratio is crucial for borrowers seeking mortgage approval. For mortgage brokers, providing clients with practical strategies to manage and improve their TDS ratio can make a significant difference in their ability to secure favorable loan terms.
The formula for the debt-service coverage ratio requires net operating income and the total debt servicing for a company. Net operating income is a company’s revenue minus certain operating expenses (COE), not including taxes and interest payments. Lines of credit and credit cards present a different scenario, as their payments often vary significantly. For these, estimate the total interest payments for the year based on your average projected balance and the current interest rate. Any planned principal repayments should also be added to this amount to determine the annual debt service for these revolving accounts.
Beyond bank loans, debt can come in the form of unpaid invoices, long-term equipment leases, or revolving lines of credit. When these elements stack up without oversight, it can distort financial health and impact your ability to secure future funding. Understanding debt service and DSCR can make all the difference when it comes to securing a mortgage.
Understanding how DSCR works can help you determine whether your clients are likely to secure approval. But what happens if there are significant lender adjustments to Net Operating Income? For example, what if the lender decides to include reserves for replacement in the NOI calculation as well as a provision for a management fee? Since the lender is concerned with the ability of cash flow to cover debt service, these are two common adjustments banks will make to NOI.
Ratios below 1.00 could indicate that the company is facing financial difficulties. MK Lending Corp outlined its debt requirements for new mortgages (2025 version). The columns highlighted in yellow represent investors with a DSCR greater than or equal to 1.00. The top row investors are less risky, so their loan terms and LTV/CLTV terms are more favorable than those investors with DSCRs of less than 1. The DSCR is also an annualized ratio that often represents a moving 12-month period. Other financial ratios are typically a single snapshot of a company’s health.
Find the interest portion of each loan payment using lender statements or official documentation. For various debts, such as mortgages or real estate lines of credit, statements often list total interest paid for specific periods. When calculating debt service, add each debt’s interest portion for a clear monthly or annual total. Start calculating debt service by listing each debt for a property or an investment.
Avoid using the NOI-based formula for DSCR if your focus is single-family or small multifamily. Instead, prioritize the rent-over-PITIA calculation to get a realistic measure of debt service support from your gross rental income. Only use operating expenses outside PITIA if you move to asset classes that require NOI. The higher the ratio of EBIT to interest payments, the more financially stable the company. This metric only considers interest payments and not payments made on principal debt balances that may be required by lenders.
A strong DSR shows the company can repay debt more comfortably, signifying financial health and reduced risk. Incorporating other liabilities, such as leases or long-term commitments, provides a more complete picture of financial obligations. Under updated lease accounting standards like ASC 842, most leases must be included, potentially increasing the debt service requirement. By integrating these liabilities, stakeholders gain a clearer understanding of a company’s ability to meet its financial obligations. Identify the principal portion of each loan payment, using monthly statements or amortization schedules.
Larger lenders may also be how to calculate total debt service more likely to approve mortgages for borrowers with large savings accounts, especially if they can make larger down payments. Lenders may also consider granting additional credit to borrowers with whom they have long-standing relationships. Net Operating Income includes all revenue minus operating expenses before debt payments. By adopting streamlined collection strategies, companies can effectively recover outstanding debts, thereby reducing total debt and strengthening financial health. The next section will examine long-term debt components, which play a critical role in shaping a company’s financial structure and future growth potential.
Let’s take an example of how to calculate the debt service coverage ratio for a business. DSR is essential for ongoing financial monitoring as both a risk indicator and a benchmarking tool. Understanding how lenders assess DSR, particularly in terms of cash flow quality and trends, advisors can more confidently help clients secure funding and favourable terms. The debt-to-equity ratio compares total debt to shareholders’ equity, helping assess a company’s financial leverage and risk.
In the final section of our tutorial, we’ll conclude by calculating the debt service ratio (or DSCR). The borrower, a commercial real estate (CRE) investment firm, submitted the following pro forma financial data as part of the application process. In the commercial real estate (CRE) market, the standard minimum DSCR is 1.25x.
Companies can take on debt to capitalize on new opportunities, such as acquiring assets, investing in research and development, or entering new markets—all without diluting ownership. The DSCR is one of the credit metrics relied on in commercial lending to measure the debt capacity and credit risk of a particular borrower. The sum of the principal and interest computed using the PPMT and IPMT function must equal the debt service determined by the PMT function, or else a mistake was likely made. Following this, we’ll give you a practical example of how to calculate total debt and clearly break down each liability category. DSR should be understood in context, considering its value, trends, and industry norms.
It refers to the principal amount and loan paid by a company over 12 months—without considering insurance, tax, or other expenses. Maintaining consistency in the units is critical to ensure the accuracy of the payment amounts (i.e. monthly, quarterly, semi-annual, annual). While the borrower is held liable in the event of default, the lender must still actively mitigate risk by performing in-depth diligence on the credit profile of the borrower (and property).
