Business

DSCR Calculator: Debt Service Coverage Ratio

Calculate debt service coverage ratio for commercial loans. Determine loan sizing, required NOI, and see how your DSCR compares to lender requirements.

Property Income
Enter your property's net operating income

Gross income minus operating expenses (before debt service)

Loan Parameters
Configure your loan terms
Debt Service Coverage Ratio

1.77x

Strong

Favorable terms likely - excellent debt coverage

Annual Debt Service

$84,814

Monthly Payment

$7,068

Loan Sizing Analysis

Max Loan at 1.25x DSCR

$1,414,869

You could borrow $414,869 more

Required NOI for 1.25x DSCR

$106,017

Current NOI exceeds requirement by $43,983

First Year Debt Service Breakdown
Interest$70,000
Principal$14,814
Total Debt Service$84,814
Interest Rate Sensitivity
How DSCR changes with interest rate fluctuations
Amortization Comparison
Impact of amortization period on DSCR

20 years

$93,036/year

1.61x

Strong

25 years

$84,814/year

1.77x

Strong

30 years

$79,836/year

1.88x

Strong

DSCR Lender Requirement Benchmarks
Typical DSCR requirements by loan type and lender
Negative Cash Flow

<0.0x - 1.0x

Loan unlikely - insufficient income to cover debt

Marginal

1.0x - 1.1x

High risk - requires strong sponsor or additional collateral

Adequate

1.1x - 1.3x

Minimum for most lenders - limited cushion

Good

1.3x - 1.5x

Standard requirement - comfortable debt coverage

Strong

1.5x+

Favorable terms likely - excellent debt coverage

Common Lender DSCR Requirements:

Conventional Banks:1.20x - 1.35x
CMBS Loans:1.25x - 1.30x
SBA 504 Loans:1.15x minimum
Life Insurance:1.25x - 1.40x
Credit Unions:1.20x - 1.25x
Bridge Loans:1.10x - 1.20x
What is Debt Service Coverage Ratio (DSCR)?

Debt Service Coverage Ratio (DSCR) is a financial metric that measures a property's or business's ability to cover its debt obligations with its operating income. Lenders use DSCR to evaluate loan applications and determine how much they're willing to lend. A DSCR of 1.0 means the income exactly covers the debt payments, while a higher ratio indicates better ability to service debt.

Formula:

DSCR = Net Operating Income (NOI) / Total Debt Service

Net Operating Income is your gross income minus operating expenses (but before debt payments). Total Debt Service includes all principal and interest payments.

How to Use This DSCR Calculator
  1. 1

    Enter your annual Net Operating Income (NOI) - this is gross revenue minus operating expenses

  2. 2

    Input your annual debt service amount (total of all loan payments for the year)

  3. 3

    The calculator instantly shows your DSCR ratio

  4. 4

    Compare your result against lender requirements and industry benchmarks

  5. 5

    Adjust inputs to see how changes affect your qualification

Why DSCR Matters
  • Lenders require minimum DSCR ratios (typically 1.20-1.50) to approve commercial loans
  • A higher DSCR means lower risk and potentially better loan terms
  • Understanding DSCR helps you structure deals that banks will actually fund
  • DSCR is often the binding constraint in commercial real estate loan sizing
  • Monitoring DSCR helps prevent loan defaults and covenant violations
DSCR Requirements by Loan Type
1.15-1.25
SBA Loans
Small Business Administration
1.20-1.35
Conventional Bank
Traditional bank financing
1.25-1.40
CMBS Loans
Commercial mortgage-backed securities
1.20-1.25
Multifamily
Apartment buildings
1.30-1.50
Office/Retail
Higher risk property types
1.40+
Construction
Development financing
When to Use a DSCR Calculator
  • Analyzing a commercial real estate acquisition
  • Refinancing an existing property
  • Preparing a loan application
  • Evaluating investment returns vs. debt capacity
  • Stress-testing deals under different scenarios
  • Comparing financing options
Common Mistakes to Avoid
Using gross income instead of NOI
Always subtract operating expenses (property taxes, insurance, management, maintenance) before calculating DSCR
Forgetting to annualize monthly figures
Ensure both NOI and debt service are on the same annual basis
Not accounting for reserves
Some lenders require reserves to be deducted from NOI before DSCR calculation
💡 Pro Tips
  • Most lenders use a 'global DSCR' that includes all borrower debts, not just the property
  • DSCR requirements increase during economic uncertainty
  • A DSCR of 1.25 means you have a 25% cushion above your debt payments
  • Some loan programs allow interest-only periods which temporarily boost DSCR

Have questions about using this calculator? Check out our financial guides or contact us for help.

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Frequently Asked Questions

What is Debt Service Coverage Ratio (DSCR)?

DSCR measures a property's or business's ability to pay its debt obligations. It's calculated by dividing Net Operating Income (NOI) by total debt service (principal + interest payments). A DSCR of 1.25x means the property generates 25% more income than needed to cover debt payments.

What is a good DSCR for commercial loans?

Most lenders require a minimum DSCR of 1.20x to 1.25x for commercial real estate loans. Strong deals typically have DSCR of 1.35x or higher. SBA loans may require 1.15x minimum. The higher the DSCR, the lower the risk and potentially better loan terms.

How do lenders use DSCR in loan decisions?

Lenders use DSCR as a primary metric to determine loan sizing, interest rates, and approval. A higher DSCR may qualify you for larger loans, lower rates, and better terms. It's often used alongside LTV (Loan-to-Value) and Debt Yield to size loans.

What's the difference between DSCR and interest coverage ratio?

DSCR includes both principal and interest payments in its calculation, providing a complete picture of debt obligations. Interest Coverage Ratio (ICR) only considers interest payments. DSCR is more conservative and commonly used for commercial real estate lending.

How can I improve my DSCR?

Improve DSCR by increasing NOI (raising rents, reducing expenses) or reducing debt service (lower interest rate, longer amortization, smaller loan amount). A 30-year amortization vs. 25-year can significantly improve DSCR on the same loan amount.

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