Debt Service Coverage Ratio: How To Calculate & Improve Your DSCR

If you’re applying for a small business loan, lenders will almost always look at your debt service coverage ratio (DSCR). This metric shows whether your business earns enough to cover its debt payments.

Here’s what you need to know about DSCR, including what it is, how to calculate it, and how to improve it.

What Is The Debt Service Coverage Ratio?

The debt service coverage ratio (DSCR) measures how well your business’s income covers its debt obligations. It’s calculated by dividing your net operating income by your total annual debt payments.

Lenders use DSCR to assess whether your business can realistically afford new debt and how likely you are to make payments on time.

Why Is The Debt Service Coverage Ratio Important?

The DSCR matters for two main reasons:

• It shows how healthy your business’s cash flow is, and
• It plays a role in whether you qualify for a loan.

By calculating your DSCR before applying for financing, you can see whether your business can realistically afford new debt. A higher DSCR indicates your business generates enough income to cover loan payments while still remaining profitable. A lower DSCR suggests tighter cash flow and a higher risk of payment issues, which may mean you need to improve your finances before taking on more debt.

For lenders, DSCR is one of the key indicators used to evaluate loan applications. It helps them assess how likely you are to make your monthly payments and how much financial cushion your business has to handle cash flow fluctuations. Lenders may also use DSCR to determine how much they’re willing to lend.

In general, a higher DSCR is better. Unlike a debt-to-income (DTI) ratio — which is healthiest when it’s low — lenders prefer to see a strong DSCR. Some lenders may also request DSCR figures from prior years or projected DSCRs to evaluate future performance.

Benefits Of A High DSCR

A strong DSCR can:

• Increase your chances of loan approval
• Help you qualify for better loan terms
• Improve your odds of lower interest rates and higher borrowing amounts
• Show that your business can manage debt while maintaining positive cash flow

How To Calculate Your Debt Service Coverage Ratio

there’s no single, universal way lenders calculate DSCR. Some lenders include the owner’s personal income, while others look strictly at business finances. We’ll walk through the most common DSCR formula, but always confirm how your lender calculates it.

The most common formula is:

Net Operating Income / Current Year’s Debt Obligations = Debt Service Coverage Ratio

To use this formula, you’ll need to know two numbers: your net operating income and your total debt payments for the year.

What Is A Good Debt Service Coverage Ratio?

When it comes to DSCR, higher is generally better.

A DSCR of 1.0 means your business earns just enough to cover its debt payments, with no margin for error. A ratio below 1.0 indicates negative cash flow, meaning your business can’t fully cover its debt obligations. A higher ratio shows that your business has extra income beyond what’s needed to make payments.

In most cases, lenders look for a DSCR of at least 1.25. This gives them confidence that your business can handle loan payments while absorbing normal cash flow fluctuations. That said, required DSCR thresholds vary by lender, loan type, and economic conditions.

It’s important to understand how each lender calculates DSCR and what ratio they require. Some lenders also require you to maintain a minimum DSCR throughout the life of the loan, not just at approval.

Because of this, it’s a good idea to monitor your DSCR regularly to make sure your business stays within your lender’s requirements.

Using DSCR To Determine Whether You Can Afford A Loan

You can also use DSCR to estimate whether your business can afford new debt (and how much).

Using our earlier example, your business has a DSCR of 1.67, meaning it earns 67% more than it needs to cover current debt payments. While this is above the commonly required 1.25 threshold, you can take the analysis a step further to estimate how much additional debt your business could handle.

Start by dividing your net operating income by your target DSCR:

Net Operating Income / Target DSCR = Maximum Annual Debt Payments

Using a 1.25 DSCR:

$50,000 / 1.25 = $40,000

In this example, your business currently pays $30,000 per year toward existing debt. That means you could afford up to $10,000 per year in additional debt payments, or roughly $830 per month, while maintaining a 1.25 DSCR.

Knowing this number before you apply can help you avoid borrowing more than your business can comfortably repay.

If you prefer more breathing room, you can use a higher target DSCR. Simply replace 1.25 in the formula with your desired ratio to see how much debt your business can afford while staying within your comfort level.

How To Improve Your Debt Service Coverage Ratio

If you’re applying for financing or trying to stay in compliance with an existing loan, you may need to improve your DSCR. In general, you can do this by increasing income or reducing debt.

Common ways to improve your DSCR include:

• Increasing your net operating income
• Reducing operating expenses
• Paying down existing debt
• Borrowing a smaller amount

Check out our article on improving your debt service coverage ratio to learn more about the methods listed above.

Final Thoughts On DSCR

For small businesses seeking financing, the debt service coverage ratio is a key part of the lending decision. Lenders use DSCR to evaluate whether your business can handle loan payments and how much you can realistically borrow.

Beyond lending, DSCR is also a useful financial health check. It shows how much income your business has left after debt payments and can help you decide whether taking on new debt makes sense. In general, the higher your DSCR, the stronger your financial position.

We have articles that can help you decide how much of a business loan you can get, reviews of our favorite small business loans, and explanations of other important factors potential lenders will consider.