The only way to avoid taxes and early-distribution penalty on this money is to come up with the money and roll it over to a traditional IRA or to a traditional account in another qualified retirement plan. The code M indicates that you have until the due date of your 2018 tax return, including extensions, to roll over as much as you are able. Whatever amount you are unable to roll over will be subject to ordinary income tax and early-distribution penalty on your 2018 tax return.
