When you leave a job, your 401(k) doesn’t disappear — but it is at risk of being forgotten, cashed out prematurely, or left in a high-fee plan you no longer control. A 401(k) rollover moves your money to a new home where you stay in the driver’s seat.

What Is a 401(k) Rollover?

A 401(k) rollover is the process of moving funds from your old employer’s 401(k) plan to another qualifying retirement account — either an IRA or a new employer’s 401(k). Done correctly, a rollover is not a taxable event. The IRS allows you to move retirement funds between qualifying accounts without triggering income tax or penalties.

You have four options when you leave a job with a 401(k):

Option Pros Cons
Roll over to IRA More investment options, lower fees, full control Loses creditor protection in some states, no Rule of 55
Roll over to new 401(k) Consolidated, loan access, Rule of 55 preserved Limited investment options, subject to new plan rules
Leave in old plan No action required Limited control, possible high fees, may be cashed out
Cash out Immediate access to cash 10% penalty + income taxes — avoid unless emergency

Direct Rollover vs. Indirect Rollover

Direct rollover: The plan administrator transfers funds directly to your new account. No check is issued to you. No mandatory withholding. No 60-day deadline. This is always the preferred method.

Indirect rollover: The plan issues a check payable to you. The plan is required to withhold 20% for federal taxes. You must deposit the full original amount (including the 20% withheld) into a qualifying account within 60 days. You get the withheld 20% back when you file your tax return — but only if you completed the full rollover.

Example of the indirect rollover trap: You leave a job with $100,000 in your 401(k). The plan sends you a check for $80,000 (withholding $20,000). To complete a tax-free rollover, you must deposit $100,000 into your IRA within 60 days — meaning you need to come up with $20,000 out of pocket temporarily.

How to Roll Over a 401(k) to an IRA — Step by Step

  1. Open an IRA at your chosen brokerage (Fidelity, Vanguard, Schwab — all free, no minimums)
  2. Request a direct rollover from your old plan administrator — call HR or log into your plan portal
  3. Specify the receiving account — provide your new IRA account number and brokerage details
  4. Confirm the type — rolling a traditional 401(k) to a traditional IRA is tax-free; rolling to a Roth IRA triggers income tax on the converted amount
  5. Track the transfer — direct rollovers typically take 5–10 business days
  6. Invest the funds once they arrive — rollover funds land as cash; you must reinvest them

401(k) Rollover Tax Rules

Rollover Type Taxable? Withholding
Traditional 401(k) → Traditional IRA No None (direct) / 20% (indirect)
Traditional 401(k) → Roth IRA Yes — full amount taxed None (direct) / 20% (indirect)
Roth 401(k) → Roth IRA No None
Roth 401(k) → Traditional IRA Not allowed

How to Find an Old 401(k)

Millions of Americans have forgotten 401(k) accounts from previous employers. If you think you may have an old account:

  1. Contact former employer HR — they can direct you to the current plan administrator
  2. Check the DOL Abandoned Plan database — for accounts at terminated plans
  3. Search the National Registry of Unclaimed Retirement Benefits at unclaimedretirementbenefits.com
  4. Check your state’s unclaimed property database — plans sometimes transfer accounts to the state after years of inactivity
  5. Use the IRS Retirement Savings Lost and Found tool — launched in 2024 under SECURE 2.0

Can You Roll Over a 401(k) While Still Employed?

Most plans prohibit in-service distributions before age 59½. After 59½, many plans allow in-service rollovers. Some plans allow rollovers of after-tax contributions at any age — check your summary plan description.

For old 401(k)s from previous jobs, you can always roll them over regardless of your current employment status.

Rollover Mistakes to Avoid

  • Taking an indirect rollover — the 20% withholding trap catches many people off guard
  • Missing the 60-day deadline — the IRS allows one rollover per 12-month period per IRA; missing the deadline converts the rollover into a taxable distribution
  • Rolling traditional 401(k) into Roth IRA without planning for the tax bill — the entire converted amount is taxable income in the year of conversion
  • Forgetting to invest after rollover — funds arrive as cash and earn nothing until you buy investments
  • Leaving small balances to be auto-cashed out — plans can distribute accounts under $1,000 without your permission

All 401(k) Rollover Guides

401(k) Rollover Articles

How to roll over

Finding old accounts

Timing and taxes


See parent hub: Retirement

WealthVieu
Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

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