Your 401k does not automatically follow you from job to job. The money in the account belongs to you, but the plan itself belongs to your former employer, and nothing moves until you tell it to. When you leave, your balance sits in the old plan until you choose one of four paths: leave it where it is, roll it into your new employer’s 401k, roll it into an Individual Retirement Account, or cash it out and pay the taxes.
Before you pick a path, you need to know what you’re actually moving and how to move it without accidentally handing a chunk to the IRS.
What’s Actually Yours to Take
Every dollar you contributed from your own paycheck is 100% yours, along with any investment gains on those contributions. Employer money is where it gets complicated. Matching and profit-sharing contributions usually come with a vesting schedule, and if you leave before you’re fully vested, you forfeit the unvested portion back to the plan.
Federal law allows employers two basic vesting schedules for matching contributions:
- Cliff vesting: 0% ownership of employer contributions until you complete three years of service, then 100% all at once.1Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
- Graded vesting: 20% after two years, then an additional 20% each year, reaching 100% after six years.1Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
Safe harbor 401k plans and SIMPLE 401k plans vest employer contributions immediately.2U.S. Department of Labor. FAQs About Retirement Plans and ERISA Pull your most recent statement or call the plan administrator to confirm your vested percentage before you do anything else. That number is what you’re working with.
If You Have an Outstanding 401k Loan
Borrowed from the plan? When you leave, the unpaid loan balance generally comes due. If you can’t repay it, the plan offsets the balance against your account and reports it as a distribution on Form 1099-R, which means income tax plus the 10% early withdrawal penalty if you’re under 59½.3Internal Revenue Service. Retirement Topics – Plan Loans
There is a safety valve. A loan offset triggered by leaving your job is a “qualified plan loan offset,” and you can roll the offset amount into an IRA or another eligible retirement plan by the due date of your federal tax return (including extensions) for the year of the offset.4Internal Revenue Service. Instructions for Form 5329 That’s a much longer window than the usual 60-day rollover rule. If you can come up with the cash, depositing it into an IRA by that deadline avoids the tax and penalty entirely.5Internal Revenue Service. Plan Loan Offsets
Your Four Options After You Leave
Leave It in the Old Plan
If your vested balance is high enough, you can do nothing and let the money ride in the old plan. The investments keep moving with the market, but you can’t contribute anything new.
Whether this is actually your choice depends on the balance. Under the SECURE 2.0 Act, plans can force out former participants whose vested balance is $7,000 or less without asking.6Internal Revenue Service. IRS Notice 2024-03 – Cumulative List of Changes in Plan Qualification Requirements If your balance is over $1,000 but at or below $7,000, the plan must roll it into a safe harbor IRA unless you give other instructions. At $1,000 or less, the plan can just mail you a check.7Internal Revenue Service. 401(k) Resource Guide – Plan Participants – General Distribution Rules
Even if staying put is allowed, check the fees. Plans charge for recordkeeping, accounting, and trustee services, sometimes as a flat per-participant charge and sometimes as a percentage of assets. Investment fees are deducted straight from your returns.8U.S. Department of Labor. A Look at 401(k) Plan Fees Some plans charge former employees more than active ones.
Roll It Into Your New Employer’s 401k
Moving the balance into your new employer’s plan keeps your retirement savings in one place. First confirm with HR or the new plan administrator that incoming rollovers are accepted — not every plan takes them.
If they do, you’ll need:
- The legal name of the new plan, its plan or account number, and the name and address of the plan administrator or trustee.
- A rollover form from the new plan and a distribution request form from the old plan.
- “Payable to” instructions so the check from the old plan is made out correctly, for example “Fidelity Investments FBO [Your Name].” Getting this wrong is how rollover checks end up in the wrong account or treated as a taxable distribution.
Roll It Into an IRA
Opening an IRA at a brokerage, bank, or mutual fund company and rolling the 401k into it typically gives you far more investment choices than any employer plan.
Match the IRA type to the money type:
- Pre-tax 401k contributions go into a Traditional IRA, preserving tax deferral. You’ll owe income tax only when you withdraw in retirement.
- Roth 401k contributions go into a Roth IRA. No tax, because the money was already taxed on the way in.9Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
- Pre-tax 401k money rolled into a Roth IRA is a taxable conversion. The whole converted amount counts as ordinary income for the year.
To start, open the receiving IRA, then request a distribution from the old 401k. The IRA provider gives you the account number, the custodian’s name and address, and the custodian’s tax ID so the IRS can match the paperwork.
Cash It Out
You can take the money as cash, but the price is steep. The distribution is taxed as ordinary income, and if you’re under 59½ you also owe a 10% early withdrawal penalty.10Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions On top of that, you lose the future tax-deferred growth that was the point of the account.
How the Money Actually Moves: Direct vs. Indirect Rollover
The method matters as much as the destination.
Direct Rollover
In a direct (trustee-to-trustee) rollover, your old plan sends the money straight to the new plan or IRA custodian, usually as a check made out to the new custodian for your benefit, sometimes by electronic transfer. You never touch the money, so there’s no withholding and no risk of blowing a deadline. This is the right method in almost every situation.
Indirect Rollover and the 60-Day Rule
In an indirect rollover, the plan sends the check to you. You then have 60 days from the date you receive it to deposit the full distribution amount into another qualified plan or IRA. Miss the deadline and the entire amount becomes taxable income for the year.11Office of the Law Revision Counsel. 26 USC 402 – Taxability of Beneficiary of Employees Trust
The trap: the plan is required to withhold 20% for federal income taxes before sending you the check.12Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income On a $50,000 balance, you receive $40,000. To complete a full rollover, you still have to deposit $50,000 into the new account within 60 days, which means covering the missing $10,000 from your own pocket. You get the withheld amount back as a refund when you file, but any shortfall in what you deposit is treated as a taxable distribution, with the 10% penalty on top if you’re under 59½.10Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
One narrower rule to be aware of: if you’re married and the plan is a money purchase pension plan, or your 401k offers annuity options, federal law may require your spouse to sign a notarized consent before any distribution or rollover.2U.S. Department of Labor. FAQs About Retirement Plans and ERISA Check your plan’s specific rules.
When Keeping It in a 401k Beats Rolling to an IRA
The IRA rollover is the default move for many people, but there are three situations where it costs you money.
The Rule of 55
If you leave your job during or after the year you turn 55, you can take distributions from that employer’s 401k without the 10% early withdrawal penalty. For public safety employees of state or local governments, the age is 50. Ordinary income tax still applies.10Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
Critical catch: this exception only applies to distributions from the employer plan you left. Roll the money into an IRA and the exception disappears, so a withdrawal before 59½ gets hit with the 10% penalty even though it would have been penalty-free the day before the rollover. If you’re between 55 and 59½ and might need the money, keep it in the old 401k or roll it into the new employer’s plan.
The Backdoor Roth Pro-Rata Rule
If you use (or might use) the backdoor Roth strategy — nondeductible Traditional IRA contribution followed by a Roth conversion — rolling pre-tax 401k money into a Traditional IRA creates a tax problem. The IRS treats all your Traditional IRA balances as one pool when figuring the taxable portion of any conversion. A big pre-tax IRA balance means almost all of any future conversion is taxable, even if the new contribution was nondeductible. Keeping pre-tax funds inside an employer plan avoids this.
Net Unrealized Appreciation on Company Stock
If your 401k holds employer stock that has appreciated a lot, rolling the whole account into an IRA may be the wrong move. Net Unrealized Appreciation lets you distribute the company stock out of the plan (not into an IRA) and pay ordinary income tax only on the stock’s original cost basis. When you later sell the shares, the appreciation is taxed at long-term capital gains rates, which are lower than ordinary rates for most people. The strategy requires a qualifying lump-sum distribution and is complicated enough to warrant a tax professional before you commit.
Tracking Down a 401k You Already Lost
If this question is coming up because you’ve already changed jobs several times and aren’t sure where an old account went, the SECURE 2.0 Act created a federal tool for you. The Retirement Savings Lost and Found is a Department of Labor database that searches for defined-benefit pension plans and defined-contribution plans, including 401k accounts, tied to your Social Security number at private-sector employers.13U.S. Department of Labor – Employee Benefits Security Administration. Retirement Savings Lost and Found Database
You verify your identity through Login.gov with your name, date of birth, Social Security number, and a photo of a state-issued driver’s license or ID. The database does not cover IRAs, government-sponsored plans, or certain religious organization plans.13U.S. Department of Labor – Employee Benefits Security Administration. Retirement Savings Lost and Found Database For accounts outside that scope, your best lead is still the plan administrator at the former employer.