My dad died in October 0f 2020 and we continued his estate from 10/28/2020 to 9/30/2021 when we filed a tax return for the estate. Our accountant issued each of the 3 siblings a Schedule K-1 form--each for $3656 of interest income accrued during that time, but I received mine after I had filed my 2021 taxes. How do I file this Schedule K-1 form and pay the appropriate taxes?