I recently took on a client who just discovered that Roth Contributions have been happening by his investment advisor for the past four years, after he retired in 2015. Based on what I have read we need to file form 5329 for each year, however since no other changes are taking place for those 3 years, do we need to amend his return or just submit the form? 

Also, he needs to withdraw the entire amount of excess contributions by the end of this year, correct? 

Does he need to withdraw the earnings? and if so are they taxable since he is over 59 1/2?