DSCR Explained: Debt Service Coverage Ratio for CRE

DSCR (Debt Service Coverage Ratio) measures a property's ability to cover its loan payments from operating income. It's the primary metric commercial lenders use to approve or decline a loan. Understanding DSCR is essential for financing any income-producing property.

The DSCR Formula

DSCR = NOI / Annual Debt Service

Where NOI is Net Operating Income and Annual Debt Service is the total principal + interest payments over 12 months.

A DSCR of 1.0 means the property exactly covers its debt. Above 1.0 means income exceeds payments. Below 1.0 means the property is losing money after debt.

What Lenders Require

Most commercial lenders require a minimum DSCR of 1.20 to 1.35. The most common threshold is 1.25 — meaning the property must generate 25% more income than its debt payments.
DSCRWhat It MeansLender Response
Below 1.0Property can't cover debtLoan denied
1.00 – 1.15Barely breaking evenVery difficult to finance
1.15 – 1.24Marginal coverageMay require more equity down
1.25 – 1.40Adequate coverageStandard approval range
Above 1.40Strong coverageBest rates and terms

Worked Example

Example: Office Building Acquisition

Purchase Price: $2,500,000

Loan Amount (75% LTV): $1,875,000 at 6.5% interest, 25-year amortization

Monthly Payment: ~$12,730 → Annual Debt Service: $152,760


Property NOI: $195,000/year


DSCR = $195,000 / $152,760 = 1.28

This clears the 1.25 threshold — the deal is financeable at standard terms.

How DSCR Affects Your Deal

DSCR directly determines how much you can borrow. If a property's DSCR is below the lender's minimum at a given loan amount, you have three options:

  1. Put more equity down — reducing the loan reduces debt service, improving DSCR
  2. Increase NOI — raise rents or cut expenses before closing (or as a value-add play)
  3. Accept a lower loan-to-value — some lenders will go to 65% LTV to make DSCR work

DSCR vs. Cap Rate

Cap rate ignores financing entirely — it measures unlevered yield. DSCR is the opposite: it's all about whether the debt is serviceable. You need both. A property can have a great cap rate but fail DSCR if you're over-leveraged, or pass DSCR at one interest rate and fail when rates rise.

When modeling a deal, always stress-test DSCR against a rate 1–2% higher than current market to understand your margin of safety.

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Cap Rate Explained How to Calculate NOI Cash-on-Cash Return