The 401k fee they hope you don't check

There's one number in your 401k quietly stealing tens of thousands from your retirement. And the people who run it are betting you'll never look it up. Here's how to find it in two minutes. It's called your expense ratio and administration fees. And it comes straight out of your balance every year, not out of your contributions. That's the trick. You never see the bill, so it doesn't feel like it costs you. About four in 10 workers don't even know they're paying it, according to the Department of Labor. And here's their own math. Take $25,000, 35 years, 7% returns, no new contributions. In a cheap index fund at three hundredths of a percent, you retire with $264,000. Bump that to a half a percent, which sounds tiny, and you're down to $227,000. That's $37,000 in fees. And if you're stuck in a 1% fund, you're down $72,000. But you never felt a dime of it leave. The damage is the biggest at the end because the fee is charged on your whole balance, not just your contributions. That's negative compounding. The longer you hold, the more the gap compounds against you. So, here's how you find it. Your plan is legally required to send you a form called a 404(a)(5). It lists the fee for every fund you own. Pull it up. You can look up the expense ratios of funds you invest in. Anything over half a percent deserves a second look. Over 1%, definitely switch. Same 500 companies, a fraction of the cost. Switch into one and you just handed yourself back tens of thousands of dollars at retirement. Same match, same account, way less going into plan administrators and fee overhead. Drop your expense ratio on your main fund below. I'll tell you if you're getting robbed.