When I retire, should leave my money in my company's 401(k) or roll it into an IRA?

By Walter Updegrave,
Money Magazine — 07/20/10

I hate to start with that overused phrase "it depends." But the fact is that the right answer really does hinge on your particular circumstances, not to mention the characteristics of your 401(k) plan.

For example, two factors that can definitely influence your decision to stay or go are your age and how soon you'll dip into your 401(k) stash for living expenses or other needs.

If you're at least 55 when you leave your company, you qualify for an exception from penalties that apply to withdrawals prior to age 59 ½. That means you can pull money from your 401(k) account and pay only income tax on the taxable portion of the withdrawal. By contrast, if you roll your money into an IRA and begin pulling it out, you'll not only owe income tax on withdrawals prior to age 59 ½, but a 10% penalty as well.

So if you're at least 55 but under 59 ½ and you think you'll need access to your 401(k) money over the next few years, you'll probably want to keep at least a portion of your dough in your company plan, at least until you hit 59 ½.

Generally, though, I think most people who are retiring or already retired are probably better off rolling their 401(k) balance into an IRA.

For one thing, if you stay in your 401(k), you're limited to the investment choices within your plan. That may not be so bad if your 401(k) has a broad menu of decent investments that are reasonably priced. But by rolling your savings into an IRA at a mutual fund or brokerage firm, you give yourself access to thousands of different mutual funds, ETFs and other investments.

Not that you need thousands of choices. I think most people are better off keeping things simple and making a diversified portfolio with just a handful of funds. But the point is that by expanding the roster of funds available to you, you may have a better shot at finding low-cost funds. With an IRA rollover you'll likely be able to pick and choose from more index funds and more target-date retirement funds than your 401(k) presently offers.

Another thing you want to consider is how much flexibility you would have for drawing money if you remain in your 401(k). Can you set up a systematic withdraw plan or do you have to put in a separate request each time you need cash? Can you designate which funds draws will come from, or does the plan administrator pro rate the withdrawal amount across your holdings? Does your 401(k) allow for lifetime annuity payments? If so, are the payments competitive with what you can get outside the plan?

Bottom line: before you make a decision, take some time to think about such issues as when you'll need access to your money, how much flexibility you'll have getting to it in your 401(k) vs. an IRA rollover and, of course, how much you'll pay in expenses staying in your plan vs. doing a rollover. I suspect that most people will opt for the IRA, especially if they're 59 ½ or older. But the only way to know which is the better choice is to think it through.