Retirement tax questions

Thank you both for your quick and timely responses. 

 

A few follow-up questions:

  • Given the Roth IRA contribution wasn't explicitly reported in my 2018 return, I don't see Form 5329 (or any penalty paid) as part of the package that was filed.  Do I still need to prepare and file a revised Form 5329 with the amended return?
  • Any idea what steps (if any) need to be taken to amend my state return (California)?