I recently read an article from personal finance guru Dave Ramsey entitled “How The 30-Year Mortgage Robs Your Future.” In this article Ramsey makes several claims about 30-year mortgages, such as they “enabled borrowers to buy more house than they could afford” and they cause people “to give up the opportunity to be a millionaire.” Are theses claims really true?
I say no.
Let’s look at the not-so-obvious, but massively misleading problems with Ramsey’s statements.
Missing the whole story
Ramsey states “the difference between a 15- and 30-year mortgage with a 6% interest rate on a $225,000 home is $144,000 over the life of the loan.” It is true that you would pay $144,000 more in interest on a 30-year mortgage. What Ramsey fails to tell you is that the monthly payment on the longer 30-year mortgage would be about$550 less per month. If you take this $550 and invest it monthly over 30 years (assuming 8% annual return compounded monthly) , you would end up with about $819,700 and you would own your home.
Bad math
Let’s review another Ramsey claim:
“What if you invested that $144,000? Invested as a lump sum, it would grow to a million dollars in just 17 years. You’d have $2.5 million in 25 years. On the other hand, what if you invested your house payment for 15 years after you paid off your 15-year mortgage? One year later, you’d have a million bucks. Ten years later, you’d have $3.5 million.”
There are multiple problems here, but I will point out two. First, if you have the 15-year mortgage, your monthly payment will be about $1,899 per month. Once the mortgage is paid off, that cash would now be available to save for retirement. Investing $1,899 monthly for the next 15 years would give you about $657,000 (assuming an 8% annual return compounded monthly), $162,700 less than using the 30-year loan. How is this possible you ask? It is primarily due to compound returns working their magic over a much longer period of time.
Second, there is Ramsey’s claim of turning $144,000 into $1,000,000 in 17 years. While theoretically and mathematically possible, there are two problems. One, Ramsey’s example is comparing 15-year versus 30-year mortgages. Nowhere in his example is there a “lump sum” of $144,000 available to invest. Second, to turn $144,000 into $1,000,000 in 17 years requires an annual compounded return of 12%! This is a totally ridiculous and completely misleading assumption to make (one, which I’m told, Ramsey has been making for years). Keep in mind that the S&P 500 has only returned on average about 10% per year over the last 50 years. If you had a diversified portfolio of stocks and bonds your average annual return would be even less than 10%, with the benefit being less dramatic ups and downs in your portfolio.
Now I understand that many (many!) people bought and financed houses that they truly could not afford, but the 30-year mortgage was not the problem. The true problems are well known:
- home buyers borrowed too much based on their income
- home buyers took out loans that were too risky (e.g., interest only loans, ARMs, etc.)
- home buyers did not make large enough down payments to provide a margin of safety if the need to sell arose
- homeowners did not have a proper cash buffer to cover living expenses, including the mortgage, in the event of job lose or other reductions in income
Dangerous recommendations
Ramsey seems to be recommending you get a 15-year mortgage, pay off your house, then begin saving for retirement. In my opinion, this is just plain bad advice and hazardous to your financial health.
Problem #1: at the end of 15 years all of your net worth would be tied up in one asset: your house. This is terrible from a diversification perspective.
Problem #2: At the end of your 15-year mortgage you would own your house, bu you would not have any retirement portfolio. You would be house rich, but cash poor!
Problem #3: as previously mentioned, you are only allowing for the effects of compounding and growth to occur over 15 years versus 30 years, which is a more risky proposition.
A Better Solution
Owning a home, particularly for most middle class folks, can be a great way to help build wealth, if it is done properly. First, buy a home using these rules:
- Don’t buy a home if you don’t plan to live in it for at least 5 years
- Buy a home that is no greater than 2 – 2.5 times your gross annual income
- Put down a 20% down payment, if at all possible
- Pay cash for closing costs – don’t roll them into your mortgage loan
- Maintain emergency cash reserves that can cover 1 – 2 years of mortgage payments for protection against loss of income due to job loss, disability, etc.
- Get a 30-year, fixed rate mortgage, as this can help hedge against housing inflation
The second step is to invest for your future on a regular and automatic schedule. Set an amount to save on monthly basis – the difference between what you would pay on a 15-year mortgage versus a 30-year mortgage is a good start.
Building the equity in a home while at the same time building your retirement nest egg is a much better strategy.
Brent Perry, CFP®,
Originally posted 5/27/11