If you quit your job, your 401(k) does not go anywhere on its own. Every dollar you contributed from your paycheck stays yours, the vested share of your employer’s match stays yours, and any unvested employer money goes back to the plan the day you separate. From there, what happens to your 401(k) if you quit your job comes down to a choice you make: leave the balance where it is, roll it into a new employer’s plan or an IRA, or cash it out and take the tax hit.
What You Actually Keep: Vesting
Your own contributions are 100% yours regardless of when you leave.1Internal Revenue Service. Retirement Topics – Vesting The employer match is the part that depends on your plan’s vesting schedule.
Under a cliff schedule, you own nothing of the match until you hit a service milestone, then you own all of it. Federal law caps that cliff at three years for matching contributions.1Internal Revenue Service. Retirement Topics – Vesting Leave at two years and eleven months under a cliff schedule and the entire match is forfeited.
Under a standard graded schedule, vesting builds gradually: 20% after two years of service, then another 20% each year, reaching 100% at six years.1Internal Revenue Service. Retirement Topics – Vesting Quit after four years and you keep 60% of the match. The unvested portion returns to the plan at separation.
Check your summary plan description or ask your plan administrator for your vesting percentage before your last day. If you’re a few months from crossing a vesting threshold, that timing can be worth thousands of dollars.
Your Four Options After Leaving
- Leave the vested balance in the old plan.
- Roll it into your new employer’s 401(k), if the new plan accepts transfers.
- Roll it into an IRA.
- Cash it out.
The right choice depends on your balance, your age, whether you have a new plan, and what you plan to do with the money.
Leaving It in the Old Plan
Whether you can leave the money in place depends on how much is there. If your vested balance is over $7,000, the plan needs your permission to distribute anything, so doing nothing is a valid choice.2Internal Revenue Service. 401(k) Resource Guide – Plan Participants – General Distribution Rules SECURE Act 2.0 raised that consent threshold from $5,000 to $7,000 for distributions processed after December 31, 2023.
If your balance is under $1,000, the plan can send you a check automatically, withholding taxes first. For balances between $1,000 and $7,000, the administrator will typically roll the money into an IRA it selects if you don’t respond to notices.2Internal Revenue Service. 401(k) Resource Guide – Plan Participants – General Distribution Rules These default IRAs are usually parked in something like a money market fund, which is safe but earns almost nothing. If yours gets auto-rolled, find the receiving institution and either consolidate or reinvest it.
Leaving a larger balance in an old plan is fine and sometimes smart, since some big-company plans offer institutional-class funds cheaper than retail. The downsides: former employees sometimes pay higher administrative fees than active participants, and you can’t make new contributions. The money can stay there until you reach the required minimum distribution age of 73.3Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
Rolling It Over
A rollover moves the balance into another retirement account without triggering an immediate tax bill.4Internal Revenue Service. Retirement Topics – Termination of Employment How you execute the rollover makes a large difference.
Direct Rollover
In a direct rollover, the old plan sends the money straight to the new plan or IRA. You never touch it, no taxes are withheld, and the full balance transfers intact.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions This is almost always the right choice. Give the old plan the receiving institution’s name, address, and account number, and have the check made payable to the new custodian for your benefit.
Indirect Rollover and the 60-Day Rule
In an indirect rollover, the plan sends the distribution check to you, and you have 60 days to deposit it into an eligible retirement account.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Here’s the trap: the plan is required to withhold 20% for federal taxes before sending the check.6Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income
So on a $50,000 balance you receive $40,000. To complete the rollover and avoid taxes on the withheld portion, you must deposit the full $50,000 into the new account within 60 days, replacing the $10,000 the government kept out of your own pocket.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Deposit only the $40,000 and the missing $10,000 is treated as a taxable distribution. Under 59½, the 10% early withdrawal penalty applies to that $10,000 too. Miss the 60 days entirely and the whole amount is taxable. The IRS can waive the deadline in limited hardship cases, but that waiver is not something to plan around.
Cashing Out
Taking a lump-sum cash distribution from a traditional 401(k) is the most expensive choice. The plan withholds 20% for federal income tax immediately.6Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income That 20% is a prepayment, not the total tax; the full distribution gets added to your taxable income and can push you into a higher bracket.
Under 59½, you also owe a 10% additional tax on the taxable portion.7Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts That penalty is not withheld from your check; it appears as extra tax when you file. On a $10,000 cash-out, you’d receive $8,000 after withholding, then owe the $1,000 penalty plus any remaining income tax at filing. Depending on your bracket, the total federal bite can exceed 30%. State income tax typically applies on top, ranging from zero in states without an income tax to over 13% in the highest-tax states.
The larger the balance, the worse the math. Cashing out $100,000 can cost $35,000 to $45,000 in combined federal and state taxes and penalties, on money that would otherwise have decades to compound.
The Rule of 55
If you leave your job during or after the calendar year you turn 55, you can take withdrawals from that employer’s 401(k) without the 10% early withdrawal penalty. Ordinary income tax still applies.8Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
Two catches. The exception only applies to the plan of the employer you’re separating from, so an old 401(k) from a job you left at 45 doesn’t qualify. And if you roll the money into an IRA before taking distributions, the exception disappears, because IRAs aren’t eligible.7Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts If you’re between 55 and 59½ and expect to draw on the balance, leave it in the employer plan until you’ve taken what you need. Certain public safety employees can use this exception as early as age 50.
If You Have a Roth 401(k) Balance
You already paid tax on Roth contributions, so rolling a Roth 401(k) balance into a Roth IRA is tax-free. Growth and qualified withdrawals from the Roth IRA are tax-free too, provided you meet the five-year holding requirement and are at least 59½ when you withdraw.
With both traditional and Roth balances in one 401(k), split them cleanly: traditional to a traditional IRA, Roth to a Roth IRA. Mixing the two by mistake is difficult to unwind.
If You Have an Outstanding 401(k) Loan
Borrowing from your 401(k) and then quitting starts a repayment clock. Under rules from the Tax Cuts and Jobs Act, you have until the tax-filing deadline for the year you left the job, including extensions, to repay the outstanding balance. With an extension that typically means October 15 of the following year.
Repayment is usually a lump sum back to the plan. Miss the deadline and the unpaid balance is treated as a distribution and added to your taxable income for that year.9Internal Revenue Service. Fixing Common Plan Mistakes – Plan Loan Failures and Deemed Distributions Under 59½, the 10% early withdrawal penalty applies on top.7Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts Ask your plan administrator whether your situation is a deemed distribution or a plan loan offset, because one of those can be rolled over into another retirement account by your tax-filing deadline to avoid the tax hit and the other cannot.10Internal Revenue Service. Plan Loan Offsets
Creditor Protection: A Reason Some People Don’t Roll to an IRA
Money in an ERISA-qualified 401(k) has unlimited protection from creditors in bankruptcy under federal law. No dollar cap applies.
IRA balances get less. Federal bankruptcy law caps IRA protection at roughly $1,512,350 for traditional and Roth IRAs combined, adjusted for inflation every three years, with the next adjustment effective April 2025. For most people the difference doesn’t matter. If your balance is large or you work in a profession with real liability exposure, keeping the money in a 401(k) preserves the stronger shield. Outside bankruptcy, IRA creditor protection varies significantly by state.
How to Submit the Rollover or Distribution
Open the destination account first if you don’t already have one. The new custodian will give you the account number, mailing address, and any incoming-transfer paperwork. Then call your old plan administrator, using the number on your most recent statement or the former employer’s HR portal, and request a direct rollover.
Most plans handle this electronically now. You fill out a distribution request form with your details, the receiving institution’s name and account number, and your signature. A few still require certified mail. Transfers typically take seven to ten business days once processed. If the plan sends a check rather than wiring the funds, make sure it’s payable to the new custodian for your benefit, not to you personally. A check made out to you starts the 60-day indirect rollover clock the day you receive it.5Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
One timing wrinkle: if the old plan is changing recordkeepers or making investment changes, a blackout period may block transfers. Federal rules require at least 30 days’ notice before a blackout lasting more than three consecutive business days.11eCFR. 29 CFR 2520.101-3 – Notice of Blackout Periods Under Individual Account Plans Wait it out rather than switching to a cash distribution. Once the transfer completes, confirm the funds arrived and are invested the way you want. The old plan will send a Form 1099-R at year-end; for a direct rollover to a qualified plan or traditional IRA, the taxable amount should be zero, and you’ll want to keep the form with your tax records.