No. If the amount was distributed to you by March 1 of the following year and your W-2 reflects the correct box 1 amount, you will be ok. Review your box 12 coding. The maximum contribution for a 403B is $19,500 unless you are over 50 and making catch up contributions, You should see an E code with an amount. This is your 403B contribution amount. That amount should not be more than $19,500. Yes, your earnings should be reported in the year you received unless your employer reported them to the IRS in 2020. You will want to coordinate that with your retirement plan administrator.
