In January 2021 I received income from an estate under section 663. In March 2021 I received a 2020 form K-1 which includes this distribution. The estate uses the calendar year. I understand that the estate reports this income as being distributed in 2020, but do I include it in my 2020 income or will I report it on my 2021 return next year? The main reason I am asking is that I did not pay an estimated tax payment and, if the income is reported for 2020, I will have to pay a penalty. I thought about filing form 2210, but technically, the income was not received by me before Dec. 31, so I don't know where to include it.
Thank you.
