---
title: Commercial Loans and Fun Blog | Debt Service Coverage Ratio Conventions
description: Debt Service Coverage Ratio Conventions | George Blackburne, owner, offers insight into the commercial loans and mortgage industry in this Commercial Real Estate Loan Tips blog.
---

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# Commercial Loans and Fun Blog

## [Debt Service Coverage Ratio Conventions](https://info.c-loans.com/debt-service-coverage-ratio-conventions)

 Posted by [George Blackburne](https://info.c-loans.com/author/george-blackburne) on Tue, Apr 26, 2022

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![debt service coverage ratio](https://info.c-loans.com/hs-fs/hubfs/debt%20service%20coverage%20ratio.jpg?width=275&name=debt%20service%20coverage%20ratio.jpg)Joke Du Jour:

Seeing a homeless guy begging on the street, a woman took pity on him and gave him a handful of change.  “Thank you,” said the homeless man.  “Your generosity is much appreciated.  You know my life used to be great, but just look at the state of me now.”  “How do you mean?” asked the woman.  “Well,” he explained. “I once was a multi-millionaire.  I had bank accounts all over the world, with hundreds of thousands of dollars deposited in each.”  “So where did it all go wrong?” she asked.  The homeless man sighed, “I forgot my mother’s maiden name.”

 

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Quick Review of the Debt Service Coverage Ratio:

Once we get past a quick review of the basics, we will get into today's lesson.  You will recall that commercial real estate lenders usually want the property's net operating income ("NOI") to be higher than the projected loan payments (the "Debt Service").  This extra income provides the lender with a a cushion against vacancies and recessions.

How much higher does the NOI have to be than the projected Debt Service (loan payments)?  This is determined by the Debt Service Coverage Ratio ("DSCR").  

You should be able to say this ratio's name three times in a row very quickly.  Years ago, when I was healthy enough to give nine-hour classes, I would single out a student in the audience and ask,  "What is the name of this ratio again?"  The jumbled answers I would get would soon have the other students in stitches.  "Uh... debt cover ratio?"  "Service debt ratio?"  *Hahahaha!*

 

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Okay, so what is the Debt Service Coverage Ratio?

DSCR = NOI / Debt Service

The result is usually expressed as something like 1.31 or 1.02.

Conventions When Discussing the DSCR:

The Debt Service Coverage Ratio is *alway* expressed to two digits to the right of the decimal point; e.g., 1.41, 1.25, or 1.00.  If you express the DSCR with one-digit; e.g., 1.2, or with three-digits; e.g., 1.117, your commercial lender will know that you are a rookie.  In his mind, you're an idiot.  Sorry.  The world is a tough place.

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A debt service coverage ratio, without a loan constant, is almost meaningless.  You can't just say that the debt service coverage ratio is 1.25.  What interest rate did you use?  What amortization?  A deal may have a 1.25 DSCR at a 3.5%, 30-year constant or a very unsatisfactory 0.92 DSCR at a 6%, 20-year constant.

Most commercial loans, especially those from banks, will be amortized over 25-years.  Therefore, you will usually use a 25-year loan constant.  If a commercial property is older than 40 years, your bank may require a 20-year amortization because the property will not stand forever.  In that case, the commercial loan officer at the bank will use a 20-year constant.  

You, of course, will *never* submit a commercial loan to a bank asking for a 20-year amortization.  Hellooo?   Your job is to get the borrower the most possible cash.  Your bank commercial loan officer may just automatically use the customary 25-year amortization for commercial loans.

 

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When computing the debt service coverage ratio, you must use annual numbers.  You must use the annual debt service, rather than converting the annual income to a monthly income and then using monthly payments.

Unfortunately for borrowers and brokers, if you compute the debt service coverage ratio using monthly payments, you actually gets you a higher DSCR.  In other words, you might have a deal where the DSCR is 1.23 when computed using the annual debt service and a 1.25 DSCR when computing the ratio using the monthly payments.  That 1.25 DSCR number is sooo important because it is often the minimum DSCR for banks.  

I suppose in this borderline case that you could submit the deal at 1.25 and see what happens.  If you are challenged by the commercial loan officer at the bank, you could always play dumb and show him your monthly calculations.  Worth a try.

 

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Sometimes commercial buildings are so prime that they sell at insanely low cap rates.  When this happens, even commercial loans of just 50% LTV don't cash flow.  But if your borrower is putting down 45% of the purchase price on a super-primo building in a filthy rich area, you should find the closest bank and submit the deal as follows:

Debt Service Coverage Ratio - 0.89% based on a 5.75%, 25-year constant ($237 per month negative)

Even though the DSCR is far less than the usual minimum of 1.25, by showing that the actual amount of the negative cash flow is quite affordable, most banks will approve the loan for your physician borrower (or other high-income borrower).

 

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