IMPORTANT DEADLINE: S-Corps, Large Partnerships, and Partnerships
S-CORPORATIONS: File a 2020 calendar year income tax return (Form 1120S) and pay any tax, interest, and penalties due. Provide each shareholder with a copy of their final or amended Schedule K-1 (Form 1120S) or substitute Schedule K-1 (Form 1120S). S-CORPORATION ELECTIONS: File Form 2553 to elect to be treated as an S corporation beginning with calendar year 2021. … Continued