In a post titled “Money Merge Account Evolution” we are subject to hyperbole, but no numbers. No proof. The latest version of MMA™ claims that if one has a mortgage along with ten other debts, they somehow need to consider 3 million possibilities before paying a dollar to any of these debts. Wow! Did he say 3 million? Is my rule “pay the highest interest rate credit card first, until it’s paid off” too simple? Should I spend even a millisecond deciding between paying my 18% credit card or prepaying my 5% mortgage? And do I really need software to help make that decision?
To be clear, I don’t suggest that MMA™ is a scam. It certainly is not. It does exactly what it claim it will do. It also lags the math that a simple spreadsheet can offer. A beautiful site called “Discover Money Merge” offers an example, one that spans the just over 10 years that MMA™ will take to retire a 30 year mortgage. Please view their example, I won’t copy their image to avoid any copyright issues. Now look at the year end numbers from my simple spreadsheet (this is for a 30yr, fixed, 6% loan. Their assumption and mine is an extra $1000/mo is available to pay the mortgage.)
| Year | MTG Bal | Tot Debt Pd | Total Int |
| 1 | 185208.41 | 14791.59 | 11597.63 |
| 2 | 169504.52 | 30495.48 | 22282.94 |
| 3 | 152832.04 | 47167.96 | 31999.67 |
| 4 | 135131.23 | 64868.77 | 40688.08 |
| 5 | 116338.68 | 83661.32 | 48284.75 |
| 6 | 96387.05 | 103612.95 | 54722.33 |
| 7 | 75204.84 | 124795.16 | 59929.33 |
| 8 | 48835.45 | 151164.55 | 63829.87 |
| 9 | 28840.44 | 171159.56 | 66343.35 |
| 10 | 3492.10 | 196507.90 | 67384.23 |
| 11 | 0.00 | 200000.00 | 67408.24 |
Now compare this to the example linked to above. My spreadsheet - total interest paid, $67408.24, their example, $70,428.19. Where is the savings? Why didn’t the use of the HELOC they recommend along with the extra risk of borrowing funds short term at a higher rate provide any savings at all? If you are completely new to this topic please see the link list above for more details. More to come, I’m sure. If you’d like a copy of the full spreadsheet, please submit a comment with your email address and I’ll send it along.
Joe




