Should you roll an IRA into a 401(k)?

Dear Liz: I have one comment in response to the reader who wondered whether she had to take minimum distributions from an IRA at age 70 1/2 even though she was still working. As you pointed out, she can defer taking minimum distributions from a 401(k), but she must take them from her IRA. I would point out that many 401(k) plans permit transfers from IRAs. Once the IRA becomes part of the employer plan, the transferred assets are no longer subject to required minimum distributions, as long as the employee continues working full time. This may be a viable option for someone who wants to delay or reduce the size of a mandatory IRA withdrawal.

Answer: Many people are familiar with the idea of rolling a 401(k) balance into an IRA when they leave a job. They may not realize they can roll money the other way as well if an employer permits it.

There are still several issues to consider before you transfer IRA money into a 401(k), said Mark Luscombe, principal analyst for CCH Tax & Accounting North America.

First, the rollover may not include any non-deductible contributions to the IRA. If the money in the IRA came entirely from tax-deductible contributions or from a 401(k) rollover, this won’t be a problem. If you made non-deductible contributions, they wouldn’t be eligible for transfer into a 401(k), Luscombe said.

“All of the sums rolled into the 401(k) plans must be funds subject to tax and not sums representing basis in the IRA,” Luscombe said. “If non-deductible contributions were made, only the taxable portion of the IRA may be rolled into the 401(k) plan.”

Another issue is that 401(k)s typically offer fewer investment choices than IRAs. Also, compare the fees with what you’re paying with your IRA. Some 401(k)s are run efficiently and give workers access to extremely inexpensive institutional funds, for example, while others lard on various account fees.

A final issue is that you’re likely to have less access to the funds in your 401(k) than you would with an IRA, Luscombe said, should you need to tap the cash. Many plans allow only hardship withdrawals from 401(k)s, although you may be able to access up to half of your funds with a retirement plan loan. Of course, if your intention is to delay required minimum distributions as long as possible and you won’t need the money, this point may not be a deal breaker.