I don't have any 1099R for these excess deferrals (401K, $401K Roth, 401K excess income, 401K Roth excess income). Just for clarity, it was contributed 2020 and I received all 4 checks on the first week of February, 2021. When I talked to my plan administrator, they told me that I will receive 4 , 1099 R forms next year 2022. My question is should I wait and file all these excess and excess income next year? Is there any benefit to proactively report 401K excess for 2020 returns?
