Mandatory withholding on a 401(k) distribution that is eligible for rollover (not an RMD) is 20%, however. You can request that more be withheld, but not less. An RMD is not eligible for rollover, so mandatory withholding does not apply but *default* withholding of 10% applies. Instead of the default of 10% being withheld, you can request that nothing be withheld or that more than 10% be withheld. If you want more than the required amount withheld on a rollover-eligible distribution or an amount different than the default amount withheld on an RMD distribution, you can give the plan administrator Form W-4P or the administrator will provide you with an equivalent way to make the request.
Form W-4P: <a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/fw4p.pdf">https://www.irs.gov/pub/irs-pdf/fw4p.pdf</a>
