I failed to file Form 8606 for a few of the past years including 2020. Is the $50 penalty due for every year, even as recent as 2020 or only 3+ tax years, eg 2018 and before?
And does the IRS require that the penalty check be included when mailing the forgotten Form 8606 forms?
Lastly, can you confirm the address to mail the Form 8606 is the same address I use for mailing my 1040?
