Debt Service Coverage Ratio (with calculator)

What Lenders Look For

There is no single required number. Each lender sets its own minimum based on the loan type, collateral, industry and economic conditions, and many want a cushion comfortably above 1.00 so that a weaker year does not lead to missed payments.

Government-guaranteed programs publish their standards. The U.S. Small Business Administration's lending procedures for 7(a) loans call for a DSCR of at least 1.15 on loans over $350,000 and at least 1.00 on smaller loans. Since October 2026, loans that finance a change of ownership, such as a first-time business purchase or an owner buyout, need at least 1.25, measured on historical results rather than projections. The SBA revises these procedures from time to time, so confirm the current rule with your lender.

After closing, many commercial loan agreements include a coverage covenant tested quarterly or annually. Falling below it can count as a default even if every payment has been made on time.

Using the Ratio to Size a Loan

You can run the formula in reverse to estimate how large a loan your cash flow can support. Divide cash available by the lender's minimum ratio to find the most you can pay in debt service each year.

With $150,000 of cash available and a required DSCR of 1.25, maximum annual debt service is $150,000 divided by 1.25, or $120,000. That works out to $10,000 a month. Subtract any existing loan payments, and what remains is the payment a new loan can carry. The interest rate and term then determine the loan amount that payment supports.

How to Improve Your Ratio

• Extend the term. Longer amortization lowers annual payments. In the manufacturer example, cutting total debt service from $200,000 to $170,000 raises the conservative DSCR from 1.25 to about 1.47.

• Refinance costly debt. Replacing short-term, high-cost loans with longer-term financing can sharply reduce annual payments.

• Raise income or cut costs. Price increases, faster collections and lower overhead all add to cash available.

• Borrow less or add equity. A larger down payment reduces the new payment.

• Document add-backs. Keep records that support one-time and non-cash expenses so lenders can credit them.

Frequently Asked Questions

Is a higher DSCR always better?
For approval, yes. A very high ratio can also mean a business is carrying less debt than it could safely handle, which may or may not fit the owner's goals.

What does a DSCR below 1.00 mean?
Cash flow does not fully cover loan payments. A ratio of 0.90, for example, means cash covers only 90% of debt service. Most lenders will not approve a new loan on those numbers without other strong support.

Does debt service include principal?
Yes. Debt service is the full required payment of principal and interest, which is why a longer amortization improves the ratio.

How is DSCR different from interest coverage?
Interest coverage compares earnings with interest expense only. DSCR also counts principal repayment, which makes it a stricter test of whether a borrower can make its payments.

Put Your Numbers to Work

Run the debt service coverage ratio on your own statements before you apply, using both a generous and a conservative definition of cash flow. Knowing where you stand helps you request a loan amount and term that fit, and makes it easier to compare financing options with confidence.

The debt service coverage ratio measures whether a business or property earns enough cash to cover its loan payments. Lenders use it as one of their main tests when deciding how much to lend, and it often appears again after closing as a covenant you must maintain.

This guide walks through the formula, what goes into each part, and several worked examples you can follow with your own numbers. All figures in the examples are hypothetical.

The Formula

The basic debt service coverage ratio (DSCR) formula is:

DSCR = Cash available for debt service divided by Total debt service

• Cash available for debt service is net operating income for real estate, or a cash flow measure such as EBITDA (earnings before interest, taxes, depreciation and amortization) for an operating business, often with adjustments.

• Total debt service is all required principal and interest payments over the same period, usually one year, including the payments on the new loan you are requesting.

To calculate your own, follow four steps: pick a 12-month period, total your cash available for that period, total every required loan payment for the same period, then divide the first number by the second.

A result of 1.00 means cash exactly covers the payments. Above 1.00 leaves a cushion. Below 1.00 means the business would need other money to keep up with its payments.

What Counts as Cash Flow

Lenders rarely use a number straight off the income statement. Common adjustments include:

• Add-backs. Depreciation and amortization, which are non-cash expenses, plus interest on debt that the new loan will refinance.

• One-time items. Unusual gains or expenses, such as a legal settlement or a gain on an asset sale, may be removed.

• Owner pay. Lenders may adjust owner salaries to a market level and subtract distributions owners take to pay taxes on pass-through income.

• Taxes and capital spending. Some lenders subtract cash taxes and routine equipment replacement, since that cash is not really available for debt.

Because methods differ, ask each lender how it calculates the ratio. Two lenders can review the same statements and reach different results.

Worked Example: An Operating Business

A manufacturer reports the following for its last fiscal year:

• EBITDA: $300,000

• Cash taxes paid: $30,000

• Owner distributions: $20,000

• Existing loan payments: $120,000 a year

• Proposed new loan payments: $80,000 a year

Total debt service is $120,000 plus $80,000, or $200,000. Using EBITDA alone, DSCR is $300,000 divided by $200,000, which equals 1.50.

A more conservative lender subtracts taxes and distributions first. $300,000 minus $30,000 minus $20,000 leaves $250,000, and $250,000 divided by $200,000 equals 1.25. Same company, same loan, a different answer depending on the method.

Worked Example: A Commercial Property

An investor wants to buy a small retail building. The lender works from net operating income (NOI), which is rental income minus vacancy and operating expenses, before any loan payments.

• Gross potential rent: $240,000

• Vacancy and credit loss allowance of 5%: $12,000

• Operating expenses such as property taxes, insurance, maintenance and management: $78,000

• NOI: $240,000 minus $12,000 minus $78,000 = $150,000

• Annual payments on the proposed mortgage: $120,000

DSCR is $150,000 divided by $120,000, which equals 1.25. If a tenant left and NOI fell to $126,000, the ratio would drop to 1.05, leaving very little room for error.

Global Coverage for Owner-Operated Businesses

For smaller, owner-run companies, lenders often calculate a global ratio that combines the business and its guarantors. The goal is to see whether the owners' total income covers all of their debts, not just the business loan.

Say a business has $180,000 of cash available and $120,000 of annual loan payments, a business-only DSCR of 1.50. The owner also has $20,000 of other net income and $40,000 of personal debt payments, such as a home mortgage and a car loan. Global cash flow is $200,000 and global debt service is $160,000, for a global DSCR of 1.25.