<prompt> Human: In 2016, my fiancee left her job at a dentist office. She had a 401k, which she rolled over to an IRA in March 2017. Last week, she got a statement from her old 401k, with updates to the fees and conditions, etc. Surprised to be getting anything from the old 401k, she called her previous employer the dentist office. They said they contributed 1,000 to her 401k in March 2018 as part of their profit sharing program. These profits were from 2016 when she still worked there.This seems very odd to us, as we expected the old 401k account to be fully closed. Does this make any sense? If this seems legit, her plan would be to roll over the 1,000 to her current 401k. Is there anything we should be on the look out for when filing taxes for this year? Would this require amending a previous tax return?Looking for any advise on the situation. If theres other info I can provide please let me know. Thanks!EDITThank you all for the responses! Sounds like she has nothing to worry about.  <response>: These programs are highly regulated. Mistakes in complicated programs, like profit sharing, happen all the time. This is great for her, just roll it to an IRA, see the wiki for where to put it. 