A 1% rise in interest rates will make your mortgage 12% more expensive

By
Managing Real Estate Broker with Brad MacKenzie

Many economists and market watchers are predicting that interest rates will rise in 2014. Generally, the consensus estimate seems to be that the average mortgage rate will increase from about 4.5% now to about 5.%% by the end of the year.

If it happens, that 1% rise would raise the monthly payment on a mortgage by over 12%.

The same increase, 1% higher than current levels, cuts your purchasing power - the size of the house you can afford to buy - by 10%.

Mortgage interest rates are trading around 4 1/2% 

  • At 4.5%, the monthly payment per $100,000 of principal loan amount on a 30-year loan is $506
  • At 5.0%, the payment is $536
  • At 5.5%, the payment is $568

So, if interest rates rise 1.0% this year, the same $100,000 borrowed will cost $62 more per month.

KCM produced some nice charts showing the changes for different dollar amounts and interest rates.

Start in the lower right corner. Go straight up to see how much more your monthly mortgage payment will be for a given rise in rates. Then follow the highlighted boxes to see how much less of a house you can afford when interest rates rise.

For example, if you can afford a $2,044 mortgage payment, a 1% rise in rates will cut your purchasing power by 10%, from $400,000 to $360,000.

 

Here's KCM's $400,000 chart showing the
Effect of interest rate changes on a $400,000 mortgage

Effect of interest rate changes on a $400,000 mortgage

 

Here's KCM's $600,000 chart showing the
E
ffect of interest rate changes on a $600,000 mortgage

Effect of interest rate changes on a $600,000 mortgage

 

Here's KCM's $1,000,000 chart showing the
E
ffect of interest rate changes on a $1,000,000 mortgage

Effect of interest rate changes on a $1,000,000 mortgage

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Comments (23)

Barbara Hensley
RE/MAX Properties - Rockwall, TX
Homes for Sale in Rockwall County, Texas

Brad, the chart is great for buyers to see how much loan they can qualify for.  Every buyer should see this.

Jan 15, 2014 05:21 AM
Bill Reddington
Re/max By The Sea - Destin, FL
Destin Florida Real Estate

Great explanation. I think that is pretty scary. Especially for first time homebuyers. It will have an effect.

Jan 15, 2014 06:23 AM
Joe Pryor
The Virtual Real Estate Team - Oklahoma City, OK
REALTORĀ® - Oklahoma Investment Properties

I think we have all been prepared for this and even in September I was telling sellers not to wait to put their homes on the market because interest rates affect home prices so as rates go up it can cut the number down of people interested in your affordable home, so prices will need to be adjusted in many markets.

Jan 15, 2014 06:39 AM
Paul McFadden
Responsive Pest Control - Seattle, WA
Pest Control, Seattle, WA.
Very well done. Bravo! I think I will reblog!
Jan 15, 2014 06:57 AM
David Toaff
First Home Mortgage - Bethesda, MD

Great article, Brad - really appreciate it.  

Jan 15, 2014 07:08 AM
Gary L. Waters Broker Associate, Bucci Realty
Bucci Realty, Inc. - Melbourne, FL
Fifteen Years Experience in Brevard County

I think people get hung up on prices and ignore the interest rate component of the home purchase.

Jan 15, 2014 07:18 AM
Mike Cooper, Broker VA,WV, MD
Cornerstone Business Group Inc - Winchester, VA
Your Neighborhood Real Estate Sales Pro

Brad, this is all the more reason to get off the fence if someone is in the market to buy. The longer they wait, the more expensive it will be.

Jan 15, 2014 07:21 AM
Lisa Friedman
Great American Dream Realty - Essex, VT
30 Years of Real Estate Experience!

Brad, excellent post! I like pointing out the numbers in this fashion. It really makes an impact when pointed out in this way.

Jan 15, 2014 07:57 AM
Pamela Seley
West Coast Realty Division - Murrieta, CA
Residential Real Estate Agent serving SW RivCo CA

I'm so glad my seller decided to sell before the end of last year. The seller got his price, and the buyer got a great deal on a beautiful home that he probably wouldn't qualify for this year. 1% can make a huge difference. Great charts and well-deserved feature.

Jan 15, 2014 08:21 AM
Michael J. Perry
KW Elite - Lancaster, PA
Lancaster, PA Relo Specialist

Brad so true ! People will be stripped of potential "purchasing power !!!"

Jan 15, 2014 08:44 AM
Joe Petrowsky
Mortgage Consultant, Right Trac Financial Group, Inc. NMLS # 2709 - Manchester, CT
Your Mortgage Consultant for Life

I would not be overly concerned about a 1% increase in interest rates anytime soon. It may be a year or longer before that kind of jump. I don't see inflation moving up very much or our economy growing stronger in the near term.

 

Jan 15, 2014 09:58 AM
Brad MacKenzie
Brad MacKenzie - Duxbury, MA
Turning Houses into Homes on the South Shore

I agree, Joe. But under that slow-growth scenario, the Fed is supposed to taper off QE3 by about $10 billion a month. It's that reduced demand for mortgage securities that is expected to bring rates back up. The Fed says they will delay the taper if inflation doesn't act as expected or growth stops.

Jan 15, 2014 10:21 AM
Joan Whitebook
BHG The Masiello Group - Nashua, NH
Consumer Focused Real Estate Services

Brad - I just had a prospect ask me what might happen with rising interest rates in NH.  From everything I am reading, it looks like now is the time to consider buying.

Jan 15, 2014 11:50 AM
Praful Thakkar
LAER Realty Partners - Andover, MA
Andover, MA: Andover Luxury Homes For Sale

Brad, simple and still difficult for buyers to understand. I feel sad when a buyer loses the home for mere $2,000 to some other buyer!

Jan 15, 2014 12:38 PM
Laura Cerrano
Feng Shui Manhattan Long Island - Locust Valley, NY
Certified Feng Shui Expert, Speaker & Researcher
That's some incredible math! But I'm glad you did it! Love and light and prosperity in 2014, Laura
Jan 15, 2014 01:13 PM
Nina Hollander, Broker
Coldwell Banker Realty - Charlotte, NC
Your Greater Charlotte Realtor

I've been "pushing" this "story" for over a year. But it seems lots of people are still sitting there thinking rates will go down to 3%!

Jan 15, 2014 08:48 PM
Debbie Gartner
The Flooring Girl - White Plains, NY
The Flooring Girl & Blog Stylist -Dynamo Marketers

Great explanation, Brad.  Yes, I think many lose sight of the fact that an increase in the interest rate often has a much bigger impact vs. a drop in price.

Jan 15, 2014 08:59 PM
Brad MacKenzie
Brad MacKenzie - Duxbury, MA
Turning Houses into Homes on the South Shore

Yes, Barbara, every buyer should see this!

Yes, Bill, it could be an issue for many buyers this year.

Agreed, Joe.

Thanks, Paul!

You bet, David.

Yes, exactly, Gary. Thanks.

Yes, Mike. I think so. Of course, predictions are problematic.

Thanks, Lisa.

Good, Pamela. That's a good story.

Yes, Michael.

I'm reading the same things, Joan.

Praful, I will never understand that.

Thanks, Laura. Math counts!

Well, they might, Nina.  I thought so, too, last year.  Now lower rates seem likely only if the economy really stalls out.

Yes, Debbie. Price is only one factor in a much bigger picture.

 

Jan 15, 2014 11:51 PM
Parnell Jackson
CHICAGO HOME LOAN SHOP - Chicago, IL
CMPS, DM

Brad,

Greetings. The better the economy the higher the interest rates. Don't wait.

Jan 16, 2014 03:15 AM
Debbie Reynolds, C21 Platinum Properties
Platinum Properties- (931)771-9070 - Clarksville, TN
The Dedicated Clarksville TN Realtor-(931)320-6730

Wow Brad, I hadn't thought about it that way. It does make a big difference.

Jan 16, 2014 12:47 PM

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