Liz Weston

Dear Liz: You have warned in the past about the risks of a 401(k) loan. I have been investing now for 15 years, and the last 14 years, my average return has been between 2% and 3%. I am considered moderately aggressive in my choices of international (24%), large and small cap (52%), midcap (16%) and 8% in bonds.

It has been an absolute joke (until last quarter) so I took out a loan a few years ago and was planning on doing it again when the first is repaid in approximately two years. I look at it as a 5% return to make myself a little something in an unstable and nasty market. I see the loan as my best consistent return option.

Answer: There is something wrong with your portfolio if your average annual return has been that low — and if you think paying returns out of your own pocket is a better option than putting your money to work in the markets.

If you had invested in a plain vanilla balanced fund 15 years ago, with 60% of its portfolio in stocks and 40 percent in bonds, you would have received an average annual return of over 9% (and it would be up 10% in the last year alone). While you wouldn’t have achieved 9% every single year, and your returns would vary based on when you bought your shares over the years, you certainly should have done better with your portfolio than you have.

It’s possible your plan charges higher-than-average fees or your investment choices have higher-than-average expenses. A site called FeeX will evaluate your 401(k) portfolio for free and show you how its costs stack up against other plans. You may be able to move to less expensive options within your plan or press your company to look for lower-cost providers.

The loan you took out depressed your returns as well. That money was pulled out of your investments, so it wasn’t able to participate in the market’s growth. The 5% interest rate you’re paying may seem cheap, but it’s a bad deal when compared to the returns the money could have been earning.