Momentum Realty Group
Carolyn Brown, Momentum Realty GroupPhone: (510) 882-3454
Email: [email protected]

The basics of a mortgage constant

by Carolyn Brown 02/24/2025

What is a mortgage constant  featured image

If you intend to apply for a commercial real estate loan, a great term to know is mortgage constant. A mortgage constant is the percentage you pay annually in comparison to the total loan amount. 

How to calculate the mortgage constant?

To calculate this amount, you'd add the monthly payments for a single year and divide the remaining by the total amount of the mortgage loan. For example, you may have a $500,000 mortgage and pay $2,000 a month at a 4 percent interest rate. 

  • $2,000 x 12 = $24,000
  • Mortgage constant: 4.8 percent = ($24,000 / $500,000)

Mortgage constant versus capitalization rate

The cap rate (capitalization rate) is used to determine the ratio of the net operating income (NOI) in comparison to the original purchase price, which can demonstrate the rate of return.

If the constant rate is higher than the cap rate, this indicates there may be a negative return on investment, but if the cap rate is higher, there will be a positive return on investment. 

Benefits & risks of using the mortgage constant

The benefit of using the mortgage constant is it provides a quick way to assess the value of a property you plan to invest in and how profitable it can be. 

On the downside, using a mortgage constant only provides a fixed viewpoint of the investment without taking into consideration when interest payments are made. For this reason, it’s best to use the mortgage constant as one of many ways to examine the potential of an investment. 

If you’re interested in finding out a mortgage constant for a property, there are free tools found online which can help you make the calculations on your investment journey. 



About the Author
Author

Carolyn Brown

Hi, I'm Carolyn Brown and I have over 20+ years of real estate experience, serving Bay Area Counties: Alameda, Contra Costa, Solano, Sonoma, Sacramento, and Central Valley. I have a Master's Degree in Psychology and I work part-time for West Contra Costa Unified School District. This has afforded me the opportunity to connect with families and communities.  

I have always been a giver and compassionate about serving and helping others. A real estate career was never my goal but the passion I have to help others changed that and I would love to help you! Whether you're in the research phase at the beginning of your real estate search or you know exactly what you're looking for, you'll benefit from having a real estate professional by your side. I'd be honored to put my real estate experience to work for you.  

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Also, I am an author. My book, "S.O.U.L Inspiration 4 Life Daily Word" is guaranteed to inspire you and encourage your soul. Giving up isn't an option, and if you desire to become a homeowner, then contact me and I'll show you how. Never let what you see, hinder what you believe. My wonderful book is available online at Amazon.com, Barnes and Noble, and Xulon.com. Let me know if you have any questions. Let's build a legacy together.  

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