Just curious, during hospital orientation they had someone from an outside company talk about mutual funds being fantastic for an hour and then stated that there was no rational reason to opt out because it wouldn't effect how much you saw from your salary. In fact, they argued that you save money because it reduces your pre-tax which results in lower taxable income. However, I have a roth IRA and after paying off student loans I am interested in having the choice of investing my savings into index funds of my choice. I don't believe mutual funds are the funds where my money will see the most growth, if any growth at all. In addition, I have difficulty with the concept of trusting a mutual fund company whose only function is to accept money from what I presume to be hospitals and pensioner funds. I am curious about the cost/benefit of a 401k plan actually is because nothing in the one hour discussion was actually about the plan our income was going to go into because the plan we would be enrolled in would be decided after we submitted forms of signed consent.