Rolling Over an Old 401(k) After You Change Jobs

The average American worker changes jobs about every four years. That means by your mid forties you could easily have three or four old 401(k) accounts scattered across former employers, each with its own login, its own fee schedule and its own forgotten beneficiary form. Some of those accounts are worth a few thousand dollars. Some are worth far more than people remember.

Rolling over an old 401(k) is one of the simplest retirement moves you can make, but the paperwork is full of small traps. Choose the wrong kind of transfer and 20 percent of your balance can disappear into tax withholding. Cash out instead and you may lose a third of it. This guide walks through your four options, the exact steps for a clean rollover, and the situations where leaving the money alone is actually the smarter call.

Your Four Options for an Old 401(k)

When you leave a job, the account does not vanish. You generally have four choices:

1. Leave it where it is. Most plans let you stay if your balance is above $7,000.
2. Roll it into your new employer's 401(k). Only possible if the new plan accepts incoming rollovers, and most do.
3. Roll it into an IRA. A traditional IRA for pretax money, a Roth IRA for any Roth 401(k) dollars.
4. Cash it out. Almost always the most expensive choice.

If your balance is under $7,000, your old employer can move it for you without asking. Balances under $1,000 may simply be mailed to you as a check, minus withholding. That is why it pays to act within a few months of leaving rather than waiting for a letter.

What Cashing Out Really Costs

Say you are 38 and have $24,000 in an old plan. If you take the cash, the plan withholds 20 percent, or $4,800, for federal tax. When you file, the full $24,000 counts as ordinary income. In the 22 percent bracket, plus the 10 percent early withdrawal penalty, plus a typical 5 percent state tax, the total bill comes to roughly $8,900.

You keep about $15,100. The bigger loss is what that $24,000 would have become. At a 7 percent average annual return, it grows to roughly $160,000 by age 66. Cashing out a modest balance in your thirties can quietly cost six figures in retirement.

Direct Versus Indirect Rollovers

This is where most mistakes happen. Ask for a direct rollover, also called a trustee to trustee transfer. The old plan sends the money straight to the new account, or mails a check made payable to the new custodian for your benefit. No tax is withheld, and nothing is reported as income.

An indirect rollover is when the check is made out to you. The plan must withhold 20 percent. You then have 60 days to deposit the full original amount into a new retirement account, which means making up that 20 percent from your own savings. Miss the deadline, or deposit only what you received, and the shortfall is taxed and possibly penalized.

New Employer Plan or IRA, How to Choose

The usual advice is to roll everything into an IRA because IRAs offer more investment choices. That is often true, but it is not automatically the best move, and here is where I disagree with the standard line.

Reasons to favor your new 401(k)

• Backdoor Roth contributions. If your income is too high for direct Roth IRA contributions, pretax money sitting in a traditional IRA triggers the pro rata rule and makes a backdoor Roth conversion partly taxable. Keeping that money in a 401(k) avoids the problem.
• The Rule of 55. If you leave your job in or after the year you turn 55, you can withdraw from that employer's 401(k) without the 10 percent penalty. IRAs do not offer this, so rolling money out of the plan too early can remove a useful option.
• Stronger creditor protection. 401(k) plans fall under federal ERISA protection. IRA protection varies by state.
• Institutional fund pricing. Large employer plans sometimes offer index funds with expense ratios as low as 0.02 percent.

Reasons to favor an IRA

• Your new plan has high fees or only a few expensive funds
• You want to consolidate several old accounts in one place
• You plan to convert part of the money to Roth on your own schedule

Before deciding, compare the actual costs. Our breakdown of expense ratios in real dollar amounts shows how a difference of half a percent adds up over decades.

Step by Step, a Clean Rollover in About Three Weeks

1. Open the receiving account first, or confirm your new 401(k) accepts rollovers. Note the exact payee name and account number.
2. Log in to the old plan, or call its record keeper, and request a direct rollover. Many now handle this online.
3. If a check is mailed to you, confirm it is payable to the new custodian, not to you personally. Forward it within a few days.
4. Watch for the deposit, usually 7 to 14 business days later. The money often lands in a cash or money market fund.
5. Invest it. This step gets forgotten surprisingly often. A balance left in cash for two years earns very little.
6. Update your beneficiary designation on the new account.

Expect a Form 1099-R from the old plan the following January. A direct rollover shows code G in box 7 and should not create any tax due.

Special Cases Worth Checking Before You Move

Company stock

If your old plan holds your former employer's stock, look into net unrealized appreciation before rolling it. Moving the shares to a taxable account under NUA rules can mean the growth is taxed at long term capital gains rates instead of income rates.

Outstanding loans

An unpaid 401(k) loan usually becomes due when you leave. If you cannot repay it by your tax filing deadline, including extensions, the balance is treated as a distribution.

Roth 401(k) money

Roth dollars should go to a Roth IRA or another Roth 401(k), never mixed with pretax funds.

Frequently Asked Questions

Is there a deadline to roll over an old 401(k)?

Not for a direct rollover. You can move it years later. The 60 day limit only applies when a check is paid to you personally.

Will rolling over affect my employer match?

No. Any vested match goes with you. Unvested amounts are forfeited when you leave, regardless. Our guide to how a 401(k) employer match works explains vesting schedules.

Can I roll over a 401(k) while still employed?

Some plans allow in service rollovers, usually after age 59 and a half. Check your summary plan description.

The Practical Takeaway

List every old 401(k) you have, with its balance and fund fees. For each one, request a direct rollover to whichever account has lower costs and keeps your options open, then invest the money the day it arrives. More planning guides are in our retirement section.