Ponder This One
Monday, January 29, 2007
I came across the following scenario at The Tao Of Making Money:
Assume you are an average 25 year old with $25,000 debt (on account of your student loan) You have been given a lump sum $10,000 and the following four choices:
1. Invest it for your retirement funds.
2. Save/invest it for your future home.
3. Save/invest it towards your child’s/children’s future college education.
4. Pay part of your student loan debt.You can pick only one of the above choices towards which you should use the entire $10,000. Which one will you pick? ..and Why? Assume that the rate of return on the three investments choices is the same and the student loan charges you an interest rate that is equal to this rate of return. Would your answer be any different if the amount was $25,000 instead of $10,000? Again, you can pick only one of the choices.
My response is to say: PAY OFF THE DEBT! Since the rate of return on the investments is the same as the interest charges then there isn’t any opportunity cost between the four options. The sooner you can pay off debt, especially if the interest it costs you is equal to what you could earn with your discretionary money, the sooner you can stop servicing the debt and exclusively save.
Let’s take our $25,000 debt for example. If the interest is 5% (accrued monthly) then the accrural for the first month is $104.17. So after one month we owe $25,104.17. If we pay it down by $10,000 and then we only owe $15,104.17, the next interest accrual will only be $62.93 and you’ll owe $15,167.10. If, on the other hand, we invest our $10,000 instead of pay the debt, we accrue only $41.67 in interest and have made only our standard student loan payment.
If we take the second scenario, we’ve just been given $25,000, paying off the debt becomes and even more enticing option. We can completely retire our debt, eliminating that as a future expense in the future, and devote the money we’ve been paying for the student loan and invest it monthly.
If the interest rates were different between the student loan and any of our investments, that changes the whole scenario and adds a few steps to the decision-making process.
