For most retirees, rolling a 401k into an IRA provides more investment choices, lower fees, and greater flexibility for tax planning strategies like Roth conversions. However, 401k plans offer better creditor protection in some states and may have access to institutional-class funds. We evaluate the trade-offs for your specific situation.
The main reason to roll a 401k into an IRA is investment flexibility. Most 401k plans offer 15-30 investment options. An IRA at a major custodian gives you access to thousands of funds, individual stocks and bonds, ETFs, annuities, and alternative investments. If your 401k has limited options or high-cost institutional funds, rolling to an IRA immediately expands what you can do.
The tax planning case for rolling to an IRA is compelling. Roth conversions are easier to manage in an IRA, you control the timing and amount with more precision than in most 401k platforms. Qualified Charitable Distributions (QCDs) require an IRA, not a 401k. Income sequencing strategies that optimize your bracket and IRMAA exposure are also more flexible in an IRA environment.
The case for keeping the 401k is narrower but real. Under federal ERISA law, 401k assets have unlimited protection from creditors and bankruptcy, stronger than the IRA protection available in many states. Illinois provides unlimited IRA bankruptcy protection under state law, which reduces this concern for Illinois residents. The other reason to keep a 401k is if you're between 55 and 59½: the Rule of 55 allows penalty-free 401k withdrawals if you left the employer in or after the year you turned 55, a window that closes once you roll to an IRA.
The mechanics of a rollover matter. A direct rollover (trustee-to-trustee transfer) moves money directly from the 401k to the IRA without touching your hands, no withholding, no tax, no 60-day deadline. An indirect rollover sends a check to you; the 401k withholds 20% for taxes, and you must deposit 100% of the original amount into the IRA within 60 days or the shortfall is treated as a taxable distribution. Always request a direct rollover.
Key facts
- Direct rollover: no tax withholding, no deadline pressure, the right way to move 401k money
- Illinois IRA bankruptcy protection: unlimited under Illinois law (730 ILCS 5/12-1006), the federal protection advantage of 401ks is minimal for Illinois residents
- Rule of 55: penalty-free 401k withdrawals available if you separate from service at or after age 55, eliminated if you roll to an IRA before 59½
- Net Unrealized Appreciation (NUA): if your 401k holds employer stock with significant appreciation, special NUA tax treatment may make a rollover inadvisable for that portion
- RMDs begin at the same age (73) for both 401ks and traditional IRAs
- Roth 401k funds can be rolled to a Roth IRA, and the Roth IRA doesn't have RMDs, unlike the Roth 401k
What is the Rule of 55 and how does it affect my rollover decision?
The Rule of 55 allows you to take penalty-free distributions from a 401k (or 403b) if you leave your employer in or after the calendar year you turn 55. This window is useful for early retirees who need income before the standard age 59½ penalty-free window. Once you roll the 401k to an IRA, the Rule of 55 is gone. IRA early withdrawals before 59½ are subject to a 10% penalty (with limited exceptions). If you're 55-59, consider keeping at least a bridge amount in the 401k before rolling.
Should I roll my 401k to a Roth IRA?
You can convert 401k funds directly to a Roth IRA, but the converted amount is fully taxable in the year of conversion. This is a Roth conversion, not a tax-free rollover. It makes sense when you're in a lower tax bracket than you expect to be in the future, typically during the early retirement window before RMDs and Social Security begin. We model the bracket impact before recommending a Roth conversion from a 401k.