30-Year vs. 15-Year Mortgage: Questions to Ask When Comparing Options

Mortgage and Lending with EstaR Mortgage NMLS #241125




Here are four questions that can help you make a more informed decision when comparing a 30-year fixed rate mortgage vs. a 15-year fixed rate mortgage. 

1 - What will I do with the difference in cash flow?

There are two main benefits that a 15-year mortgage has vs. a 30-year mortgage:

  • 1 - Fifteen-year mortgages often carry lower interest rates vs. thirty-year mortgages. This could save you some money over time. (See Figure 1 that illustrates what would happen if the interest rate on a 15-year mortgage was 0.5% less than the interest rate on a 30-year mortgage.)
  • 2 - Fifteen-year mortgages are paid off in half the time of thirty-year mortgages. This results in less interest over time and no monthly payments after 15 years.  (See Figure 1.)

Even so, you could accomplish similar results by investing the extra cash flow experienced from the lower payments on a 30-year mortgage. (See Figure 2.) Therefore, the main issue here is: what will you do with the difference in cash flow if you choose a 30-year mortgage? Here are three options:

  • Option 1: Invest the extra cash flow. This could be worth considering if you're looking to build your retirement account or a child's college fund.
  • Option 2: Spend the extra cash flow. This could be worth considering if you're looking to enhance your lifestyle or create more life experiences.
  • Option 3: Use the extra cash flow to bid higher or buy a more expensive house. This could be worth considering if you're facing tough competition from other buyers in your market and if home values are likely to increase.

2 - What's the outcome in 15 years?

As you can see from Figure 2, you'll probably come out ahead going the 30-year mortgage route if you invest the extra cash flow.  Further, you'll have access to the funds after 15-years as they'd likely be in a liquid investment account vs. being trapped in your home equity.  The bottom line is that you are in more control of your cash flow with a 30-year vs. a 15-year mortgage.



3 - What's the outcome in 30 years?

See Figure 3 for an illustration showing a comparison over a 30-year timeframe.  With the 15-year option,  we are showing what would happen if, in years 16-30, you invest the entire monthly payment you'd no longer have with the 15-year option.  With the 30-year option, we are showing what would happen if you simply invest the extra cash flow each month for 30-years.  As you can see from Figure 3, you'll probably come out ahead going the 30-year mortgage route if you invest the extra cash flow. 


4 - What's the risk with either option?

The main risk with a 30-year fixed rate mortgage is that you may not be disciplined enough to use the extra cash flow in a productive way that improves your life.  As with any other choice in life, it's up to you to stay the course.

The main risk with a 15-year fixed rate mortgage is that you may find it difficult to make the higher monthly payment if you run into financial challenges down the road.  So it really boils down to this: would you rather obligate yourself to a higher monthly payment with the 15-year option, or would you rather bet on yourself that you'll make smart choices with the extra cash flow you experience with the 30-year option?

In either case, this is probably one of the most important financial transactions of your life. My commitment is to communicate and strategize with you every step of the way.  Contact me for more info and I'll be happy to run the numbers for your specific situation!



*PLEASE NOTE: This article is provided for educational purposes. The examples and interest rates used in this article are for illustrative purposes only. The US government requires me to disclose that this is not a commitment to lend you money under Regulation Z, this is not an advertisement for a particular loan program or for particular interest rates, and you are not pre-approved or pre-qualified for any of the options illustrated in this article. You are welcome to complete a loan application to find out if you qualify and what loan programs you may qualify for. Also, keep in mind that these illustrations don't take into account the additional tax advantages that may be available with the 30-year option vs. the 15-year option. Finally, the scenario would be impacted by the rate of return you are able to earn on investments. We are using 6% in our example, but your actual return will vary depending on the type of investment you choose.


Please see a CPA or financial advisor for more details.



Chris Freck MBA CMPS
Chris Freck MBA CMPS
NMLS: 241125
EstaR Mortgage
(510) 463-1003

2413 Webb Avenue, Suite E,
Alameda, California 94501
Corporate NMLS: 1547521
Mutzig Management, Inc dba EstaR mortgage is California Bureau of Real Estate license #2020370. Christopher A. Freck, California BRE license #1454795 with an MLO Endorsement. This material is not from HUD or FHA and has not been approved by HUD or a government agency.

Comments (3)

William Feela
Realtor, Whispering Pines Realty 651-674-5999 No.

I know several people who did the 15 year route and are just a few years away form no payment. 

Aug 20, 2018 09:46 AM
Chris Freck

15 years is a great way to go, with our custom Amortization Tables we give clients the flexibility to track how fast they pay off, one did it in only 3 years! Saving interest over the life of the loan is important, having flexibility for unexpected changes in life is import too. 30yrs with accelerated payments is the way we've found to meet the goal and still have flexibility.

Aug 20, 2018 10:31 AM
Chris Freck
EstaR Mortgage - Alameda, CA
EstaR Mortgage, A Bilingual Brokerage

For more information we can be reached at 510-463-1003, MyLender@EstaRM.info or https://EstaRmortgage.com Thank you!

Aug 20, 2018 10:40 AM
Debe Maxwell, CRS
www.iCharlotteHomes.com | The Maxwell House Group | RE/MAX Executive | (704) 491-3310 - Charlotte, NC
The right Charlotte REALTOR!

Nice job comparing 30-year and 15-year mortgages Chris. If you can handle paying a little more each month the advantages of a 15-year are enormous. We did a 15-year when we built our new house five years ago. Ten more to go!

Aug 20, 2018 01:36 PM

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