What to Do With Your 401(k) When You Change Jobs — Without Triggering a Huge Tax Bill

When you leave a job with a 401(k), federal law gives you four choices for the money you already contributed. The IRS confirms these in the 401(k) Plans guidance on its website. Each option has a different impact on your taxes, your flexibility, and your long-term retirement.

The Four Options You Have

1. Cash it out. You can withdraw the entire balance as a check. The old employer is required to withhold 20% for federal taxes before sending it. On top of that, if you are under 59 and a half, you will owe an additional 10% early withdrawal penalty on the full amount, plus ordinary income tax on whatever your bracket ends up being. This is the most expensive option. Avoid it unless you have no other choice.

2. Leave it in the old plan. Most 401(k) plans allow you to keep your money invested with them after you leave, at least up to a certain balance. If your balance is over $5,000, the plan cannot force you out. This is the easiest option but not always the best — you lose the ability to contribute, your investment choices are limited to what the plan offers, and you may forget about it over time.

3. Roll it over to your new employer’s 401(k). If your new employer’s plan accepts rollovers, this consolidates everything in one account with no taxes or penalties. The advantage is simplicity — one account, one statement, one set of investment options. The disadvantage is that you are limited to the new plan’s investment menu, which may be better or worse than your old one.

4. Roll it over to an IRA. This is the option most financial advisors recommend. You open a rollover IRA at the brokerage of your choice, and the old 401(k) custodian sends the money directly to the new IRA. You get unlimited investment options, lower fees in many cases, and full control over your retirement money.

The Two Ways to Move Money: Direct vs. Indirect

If you choose options 3 or 4, the IRS distinguishes between two execution methods, and the difference is potentially thousands of dollars.

Direct rollover (also called trustee-to-trustee transfer): your old 401(k) custodian sends the money directly to your new 401(k) or IRA. No taxes are withheld, no 60-day clock starts, and the entire balance arrives intact. This is the method you should use.

Indirect rollover: your old 401(k) cuts you a check for the balance, with 20% already withheld for federal taxes. You then have 60 days from the date you receive the check to deposit the full balance — including the 20% that was withheld — into the new account. If you do not make up the withheld amount from your own pocket, the IRS treats the missing 20% as a taxable distribution.

Here is where it gets expensive. If you have $50,000 in your 401(k) and choose an indirect rollover, the check you receive is $40,000. To avoid taxes and penalties, you must deposit $50,000 into the new account within 60 days. That means coming up with $10,000 of your own money to replace the withheld amount. Most people cannot do this, and the result is a surprise tax bill.

Why the IRA Rollover Is Usually Best

Rolling your old 401(k) into an IRA gives you advantages that employer plans rarely match:

Unlimited investment options. Employer 401(k) plans typically offer 10 to 30 mutual funds. An IRA at a major brokerage gives you access to thousands of funds, ETFs, individual stocks, and bonds.

Lower fees. Many 401(k) plans charge administrative fees on top of fund expense ratios. IRA fees are typically lower, and you can choose low-cost index funds that match your risk tolerance.

Consolidation. If you have changed jobs multiple times, you may have three or four old 401(k) accounts scattered across different custodians. Rolling them all into one IRA simplifies tracking, rebalancing, and retirement planning.

Control. You decide when to rebalance, what to invest in, and how to withdraw in retirement. You are not limited by your employer’s plan rules.

The Bottom Line

When you change jobs, your 401(k) is not automatically yours to keep without consequences. The choice you make — cash out, leave it, roll to new 401(k), or roll to IRA — has lasting implications for your retirement.

For most people, the direct rollover to an IRA is the best option. It preserves the tax advantages, expands your investment choices, reduces fees, and gives you full control. Just make sure to request a direct rollover, not an indirect one, and the transfer will be seamless.

The money you have already saved for retirement is too important to leave to chance. Make the rollover a priority in your job transition checklist, and your future self will thank you.