If you did not get the required RMD in 2018 for 2018, and report that, you must amend the 2018 tax return and pay a penalty of 50% of the RMD.
you must take out the 2018 RMD as soon as possible,
and report it as income in the year you took it out, along with the RMD for that year.
You can ask the IRS to waive the penalty for "good reason".
Fortunately for you, they usually do that.
