When you change jobs, your 401(k) stays invested in your former employer’s plan, but contributions stop and you lose access to any future match. From there, what happens to your 401(k) when you change jobs comes down to your own decision: leave it where it is, roll it into a new 401(k) or an IRA, or cash it out. Federal law protects the money regardless of your employment status, but the choice you make in the weeks after leaving, along with your vesting schedule and any outstanding loan, determines how much of the balance you actually keep.
How Much of the Balance Is Yours
Every dollar you contributed yourself, pre-tax or Roth, belongs to you immediately and goes with you no matter when you leave. Employer contributions are different. Most plans use a vesting schedule that ties your ownership of matching funds to your length of service.1Internal Revenue Service. Retirement Topics – Vesting
Two structures are common. Cliff vesting gives you 0% of the employer contributions until you complete three years of service, then jumps you to 100% all at once. Graded vesting phases you in: 20% after two years, 40% after three, 60% after four, 80% after five, and 100% after six. These are the minimum schedules federal law allows for defined contribution plans; an employer can vest you faster, not slower.2Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
Leaving before you’re fully vested means forfeiting the unvested portion of the employer match. Under a graded schedule, walking away after four years costs you 40% of what your employer put in. The forfeited amount returns to the plan’s general pool. Your Summary Plan Description spells out the exact timeline, so read it before you give notice. A few extra months on the job can be worth thousands.
If Your Balance Is Small, the Plan May Move It Without You
Your former employer doesn’t have to wait for you to decide if your vested balance is low. Under the SECURE 2.0 Act, the involuntary cash-out threshold rose from $5,000 to $7,000 for distributions made after December 31, 2023. Below that line, the plan can move your money without your permission.
If the balance is $1,000 or less, the plan can simply mail you a check for the amount minus 20% federal tax withholding. You would owe income tax on the full amount and, if you’re under 59½, a 10% early withdrawal penalty.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Between $1,000 and $7,000, and if you don’t respond with instructions, the administrator can roll the money into an IRA in your name. No tax is due on that automatic rollover, but the IRA is usually invested conservatively and may carry fees you didn’t pick.
Above $7,000, the plan must have your consent before distributing anything.4Internal Revenue Service. 401k Resource Guide – Plan Participants – General Distribution Rules Either way, keep your address current with your former employer so notices don’t get lost.
If You Have an Outstanding 401(k) Loan
Borrowing from your 401(k) while employed is one thing; leaving with the loan still open is another. Most plans require the full outstanding balance to be repaid shortly after you separate. The deadline varies by plan and is often tied to the end of the quarter following your departure.5Internal Revenue Service. Retirement Topics – Loans
If you can’t repay, the unpaid balance becomes a plan loan offset: the plan reduces your account by that amount and reports it on Form 1099-R. You owe ordinary income tax on the offset, plus the 10% early withdrawal penalty if you’re under 59½.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
There is a way out. When the offset happens because you left the job or the plan terminated, it qualifies as a “qualified plan loan offset.” You then have until your federal tax filing deadline, including extensions, to roll the offset amount into an IRA or another eligible plan and avoid the tax hit entirely.7Internal Revenue Service. Plan Loan Offsets You would need to come up with the cash from another source to make that rollover contribution, but it spares you tax and penalty on money you never actually received.
Your Four Choices
Once you’re separated and your balance is above the involuntary cash-out threshold, you have four options. None has a hard deadline. You can leave the money in the old plan indefinitely in most cases, though required minimum distributions eventually kick in at age 73.
Leave It in the Old Plan
If the plan has decent investment options and low fees, doing nothing can be reasonable. The money keeps growing tax-deferred and retains full federal creditor protection. The downsides: no new contributions, an account with a company you no longer work for, and the possibility that the plan changes its lineup or raises fees.
Roll It Into Your New Employer’s 401(k)
If your new employer’s plan accepts incoming rollovers, consolidating there keeps everything in one employer-sponsored account with strong creditor protection. Not every plan accepts rollovers, so confirm with the new benefits administrator before starting the transfer.
Roll It Into an IRA
Moving the money into a traditional IRA preserves the tax deferral and opens up a much wider set of investments than most employer plans offer. You pick the brokerage and the funds. One trade-off: employer plans often carry lower-cost institutional share classes, while IRAs typically use retail share classes with somewhat higher expense ratios. Small fee differences compound over decades. Creditor protection also weakens, which is covered below.
Cash It Out
Taking a lump-sum distribution means the plan sends you a check, but not for the full amount. It withholds 20% for federal taxes first.4Internal Revenue Service. 401k Resource Guide – Plan Participants – General Distribution Rules Under 59½, you also owe a 10% early withdrawal penalty on top of regular income tax when you file.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions Between withholding, penalty, and your marginal rate, 30% to 40% or more of the balance can be gone. Cashing out also permanently removes that money from the tax-advantaged compounding that makes the account work in the first place.
The Rule of 55 for Older Workers
If you leave your job during or after the calendar year you turn 55, you can take distributions from that employer’s 401(k) without the 10% early withdrawal penalty. This exception applies only to the plan tied to the job you left, not to older 401(k)s or to IRAs.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
For public safety employees of state or local governments, federal law enforcement officers, firefighters (including private-sector firefighters), corrections officers, customs and border protection officers, and air traffic controllers, the age drops to 50.
This matters for the rollover decision. Between 55 and 59½, rolling the money into an IRA eliminates access to the Rule of 55. You would be locked out of penalty-free withdrawals until 59½, unless you set up substantially equal periodic payments, which has its own complications. Leaving the balance in the former employer’s plan, or rolling it into a new employer’s plan, preserves the option.
Roth 401(k) Money Moves Differently
Designated Roth contributions inside a 401(k) can roll into a Roth IRA or into another employer plan that accepts Roth rollovers. They cannot roll into a traditional IRA or a pre-tax 401(k) account, because mixing already-taxed money with pre-tax funds creates accounting problems.
Rolling Roth 401(k) money into a Roth IRA has one clear advantage. Employer plans require required minimum distributions from Roth accounts starting at age 73; Roth IRAs have none during the original owner’s lifetime. If you don’t need the money in retirement, the Roth IRA lets it keep growing tax-free. When you initiate the rollover, ask the administrator to separate pre-tax and Roth balances so each goes to the right destination.
Direct Versus Indirect Rollover
How the money physically moves has real tax consequences. In a direct rollover, sometimes called a trustee-to-trustee transfer, the old plan sends the funds straight to the new 401(k) or IRA. Nothing is withheld, no check is made out to you, and there’s no clock running. It’s the simplest and safest route.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
In an indirect rollover, the plan sends the distribution to you. It must withhold 20% for federal taxes first.8Internal Revenue Service. Pensions and Annuity Withholding You then have 60 days from receipt to deposit the money into a new qualified account.9Office of the Law Revision Counsel. 26 USC 402 – Taxability of Beneficiary of Employees Trust
The catch is that to avoid tax and penalty on the full distribution, you have to deposit the original amount, including the 20% that was withheld. That means covering the withheld portion out of pocket. On a $50,000 distribution, the plan sends you $40,000. To complete a full rollover, you deposit $50,000 within 60 days, using $10,000 of your own cash. You get the $10,000 back as a tax refund when you file, but you need it upfront.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
Deposit only the $40,000 you received, and the $10,000 that was withheld counts as a taxable distribution. Income tax applies to that $10,000, plus the 10% penalty if you’re under 59½. A direct rollover sidesteps the problem completely.
Creditor Protection Is Not the Same
One factor that rarely gets weighed in the rollover decision is how well the money is shielded from creditors. Funds inside an employer-sponsored 401(k) get virtually unlimited protection under federal law. ERISA’s anti-alienation rules keep creditors out, even in bankruptcy, with narrow exceptions for federal tax liens and qualified domestic relations orders such as a divorce decree.10U.S. Department of Labor. FAQs About Retirement Plans and ERISA11eCFR. 26 CFR 1.401(a)-13 – Assignment or Alienation of Benefits
IRA protection is narrower. In federal bankruptcy, traditional and Roth IRAs are protected up to roughly $1.7 million, adjusted for inflation every three years. Amounts rolled over from an employer plan into an IRA keep unlimited bankruptcy protection regardless of that cap. Outside bankruptcy, IRA creditor protection varies significantly by state, from robust to minimal.
If you carry significant debt, work in a high-liability profession, or worry about lawsuits, keeping the money inside an employer plan gives you stronger and more predictable protection than an IRA.