Updated 2026-03-30
What Happens to Your 401(k) When You Leave a Job
Your options and deadlines when changing employers
When you leave a job, you have several options for your 401(k): roll it over to a new employer plan or IRA, leave it with your former employer, or cash it out (usually not recommended due to taxes and penalties).
Your 4 Options Compared
| Option | Taxes | Penalties | Best For |
|---|---|---|---|
| Roll to new 401(k) | None (direct rollover) | None | Simplicity, consolidation |
| Roll to IRA | None (direct rollover) | None | More investment choices |
| Leave with old employer | None | None | Good plan, balance over $5,000 |
| Cash out | Full income tax + 20% withholding | 10% if under 59 1/2 | Almost never recommended |
Balance Thresholds
Your balance determines what your former employer can do. Under $1,000: they may force cash out. $1,000-$5,000: they may auto-roll into an IRA. Over $5,000: they must let you keep it in the plan. Over $7,000 (SECURE 2.0): the new auto-rollover threshold for plans that adopt it.
Outstanding Loan Deadlines
If you have an outstanding 401(k) loan, you typically must repay it by the tax filing deadline for the year you leave. Any unpaid balance is treated as a distribution and subject to income taxes and a potential 10% early withdrawal penalty if under 59 1/2.
Frequently Asked Questions
There is no deadline for a direct (trustee-to-trustee) rollover. However, if you receive a check, you have 60 days to deposit it into a qualified retirement account to avoid taxes and penalties. Missing the 60-day window means the distribution is taxable.
An IRA offers more investment choices and typically lower fees. A new employer 401(k) may be better if you need creditor protection (ERISA), want access to institutional funds, or plan to use the Rule of 55 for early withdrawals.
Unvested employer contributions are forfeited. Only the vested portion stays with you. Your own contributions are always 100% vested. Check your plan's vesting schedule before deciding when to leave.
Pavlo Pyskunov
Managing Director & Investment Fund Director
Pavlo Pyskunov analyzes employer-sponsored retirement plans using IRS publications and DOL Form 5500 filings, helping workers maximize their 401(k) savings through data-driven guidance.
Last updated: 2026-03-30