Four Things You Can Do With an Old 401(k) — and How to Not Botch the Move

Leave a job and the 401(k) stays behind, waiting on a decision. There are exactly four options, none automatically right — despite what anyone with a rollover to sell tells you.

Option 1: Leave it where it is

Perfectly legal if the balance is over $7,000, and sometimes smart. Big-employer plans can carry institutional fund pricing cheaper than anything retail, 401(k)s enjoy the strongest federal creditor protection, and two age rules are plan-specific: the rule of 55 (leave your job in or after the year you turn 55 and that plan's money is penalty-free) and net unrealized appreciation treatment for company stock, which a rollover permanently forfeits.

The costs are practical: another account to track, no new contributions, and orphaned accounts have a way of being forgotten — billions of dollars' worth, by most estimates.

Option 2: Move it into your new employer's plan

Consolidation without leaving the 401(k) world. Everything lands in one place, creditor protection stays maximal, and — a niche but valuable point — money inside a current employer's plan is exempt from RMDs while you keep working there, and doesn't count against the pro-rata rule if backdoor Roth contributions are in your future.

Worth doing when the new plan is good and cheap. Not worth it when the new plan's menu is expensive — check its expense ratios before deciding.

Option 3: Roll it to an IRA

The most popular route: one account that survives every future job change, the full universe of investments, and total control over withdrawals and Roth conversions later.

The honest costs: you trade the rule of 55 for the IRA's age-59½ line, slightly weaker creditor protection in some states, and — the quiet one — IRA money often lands where an adviser's fees apply. When someone urges a rollover, ask what they earn if you do. Good advisers answer plainly.

Option 4: Cash it out

Almost always the expensive door. Under 59½, a $50,000 cash-out loses 10% to the early-withdrawal penalty plus ordinary income tax — commonly $15,000–20,000 gone — and every future dollar of compounding with it. The exceptions are genuine hardship and trivial balances. Otherwise, treat this option as a warning label.

However you move it: make it a direct rollover

The classic self-inflicted wound isn't picking the wrong option — it's moving the money the wrong way.

In a direct (trustee-to-trustee) rollover, the check goes from old custodian to new, never touching your hands. Nothing is withheld, nothing is taxable, no deadline exists.

In an indirect rollover, the check comes to you — and your old plan must withhold 20% for taxes. You then have 60 days to deposit the full original amount (including the withheld 20%, from your own pocket) or the shortfall becomes a taxable distribution, penalty included if you're under 59½. People trip on this constantly, entirely avoidably.

Ask for the direct rollover. Every custodian offers it; the receiving firm will usually run the whole process for you.

One more distinction

A traditional 401(k) rolling to a traditional IRA is tax-neutral. Rolling to a Roth IRA is a conversion — the full amount hits your taxable income that year. Sometimes that's a deliberate, excellent move; as a surprise on a large balance, it's a five-figure April headache. Know which box you're checking. Our rollover guide includes a checklist that walks the whole process step by step.