Calculating The Net Benefit Of A Refinance Transaction

Calculating the net benefit of refinancing can be a challenging task if you do not understand what to calculate. We are going to focus on the net benefits of refinancing from the standpoint of lowering your interest rate.

Although there are several reasons to refinance, lowering your mortgage rate to save on interest payments over the term of the loan is the most popular.

Calculating the actual savings can be a tricky chore unless you know the difference between cash flow savings and interest savings. If your refinance objective is to only save on the interest by lowering your rate, then the interest savings should be done with the calculations below.

Calculating Interest Savings:

(Loan Amount x Interest Rate) / Months in year = Interest paid per month

($200,000 x 6% or .06) / 12 = $1,000.00

*Remember to do the calculation in the parentheses first*

We now know that you are paying $1,000.00 per month in interest. You should take the new interest rate you are getting with your refinance and calculate what your new interest payment will be.

($200,000 x 5% or .05) / 12 = $833.34

Now we need to find out the difference between the two interest rates.

Current Interest Payment – Proposed Interest Payment = Interest Savings

$1,000.00 – $833.34 = $166.66

Now you have figured out that by dropping your interest rate 1% on $200,000 you will be saving $166.66 per month or about $2,000 per year.


Anyone would want to save $2,000 per year, where do I sign… right? Not so fast, you’ll want to calculate the break-even point to find out how you will benefit after your closing costs.

Net Benefit Formula (Break-Even):

(Closing Costs – Escrows) / Interest Savings = Month of Break-Even

($6,000 – $1,000) / $166.66 = 30 Months

In other words, it will take 30 months for you to recoup the cost of your refinance. If you plan to keep your mortgage for at least 30 months then you might want to consider this deal.

Okay, now we can calculate your net benefit for refinancing with one more calculation.

(Monthly Savings * Months you plan to keep mortgage) – (Closing Costs –Escrows) = Net Savings

($166.66 * 120 months) – ($6,000 – $1,000) = $14,999.20

If you kept the mortgage for 120 months (10 years) you would save $15,000.

Okay, now you can find out where to sign.

Calculating the net benefits of a refinance is crucial in determining if it is strategic for you to refinance. Keep in mind that each mortgage is slightly different and you may need to adjust calculations accordingly.


Frequently Asked Questions:

Q:  I heard that I should only refinance if I drop 1% on my mortgage is that true?

Some people say ½% , 1% to never. Every mortgage is different.

For Example: A no cost loan can have a 1 month break-even point with only a .25% drop in interest rate. Now that you know how to calculate your net benefit, you are able to figure out what may be best for your situation.

Q:  Why can’t I just compare my current payment to the proposed payment and figure out my net benefit?

You could just compare just the two payments if you wanted to find out your cash flow savings, but the current and proposed loans may have two different amortizations.

Let’s assume you currently have a 15 year mortgage and you’re comparing it to a 30 year mortgage. If both loans have the same interest rate and loan amount but the amortization is different, your interest savings per month would be $0. However, you are going to show a cash flow savings with the 30 year mortgage because of the longer amortization.


Related Article – Refinance Process:

March 28, 2010 by · Leave a Comment

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About Allen

Allen is President and Founder of First Trust Mortgage, a family owned, 15 year old, mortgage planning firm in Fort Lauderdale, Florida. First Trust Mortgage was founded in 1996 and provides residential mortgages in Florida. Allen's vision for First Trust Mortgage was based on two principles. First was to help his clients make informed decisions regarding residential mortgages. Second was to build long lasting relationships with his clients and referral partners. Over the past 5 years Allen has concentrated his education and efforts in the area of managing Real Estate equity through mortgage planning. Allen was one of the first certified mortgage planning specialists in the State of Florida and is a regular guest of Steve Pomegranate's "On The Money" radio program on NPR and Ray West's "Talk About Money" radio program on WAFG. Allen also teaches continuing education classes to certified financial planners and insurance professionals around the subject of managing equity in real estate. Allen graduated from the Pennsylvania State University in 1983. Allen has been lending in Florida since 1985 when he joined Great Western Bank (Washington Mutual) managing the company's Florida Commercial Real Estate Mortgage operation. In 1996 /1997 Great Western Bank was sold to Washington Mutual and Allen formed First Trust Mortgage Corporation. In 2003 Allen focused his practice on Strategic Real Estate Equity Management and is considered to be an expert on that topic. Allen practices personally the concepts he shares with the clients, peers and financial service providers. Allen exclusively participates in the residential mortgage industry and has purposely chosen to hold no other licenses even though he has participated and passed the class requirement for the Florida Real Estate Commission, Florida Mortgage Broker, Health, Life & Variable annuities license. Specialties Helping Consumers, Realtors and Financial Service Professionals Keep Current On Mortgage Trends and Provide Mortgage Solutions As Needed. In Addition I Love To Educate Seniors On The Use of Reverse Mortgages and First Time Homebuyers On How Much Payment Is Enough.

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