Leaving a job does not require cashing out a 401(k), but sometimes the check shows up anyway. What matters most is the payee line. If the check is made out to you instead of to another retirement plan or IRA, the tax rules get much less forgiving, and there is a clock running.
The payee line decides the withholding
A direct rollover of eligible money to another retirement plan or IRA generally avoids mandatory withholding. But if an eligible taxable employer-plan distribution is paid to you, 20% generally must be withheld. A later rollover generally has a 60-day deadline. Rolling over the whole gross amount requires replacing the withheld amount from other funds.
Ask what the plans allow first
You may be able to leave money in the old plan, move it to a new employer's plan, roll it to an IRA, or take a distribution. Plan rules and balances matter. Compare fees, services, withdrawal rules, and protections with a qualified professional. No destination is automatically best for everyone.
A rollover and a conversion are not identical
Moving untaxed money to a Roth IRA generally creates taxable income. Cashing out can also create income tax and an additional early-distribution tax unless an exception applies. Required minimum distributions are not eligible for rollover. An outstanding plan loan can introduce separate deadlines and tax rules.
Questions people ask me about this
Does the withheld 20% count as money I rolled over?
Not automatically. To roll over the entire gross distribution, you generally must replace that withheld amount within the rollover deadline.
Can every retirement payment be rolled over?
No. Required minimum distributions and certain other payments are ineligible. Confirm before requesting the transaction.

