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IMPORTANT DEADLINE: S-Corps, Large Partnerships, and Partnerships
March 16, 2020

S-CORPORATIONS: File a 2019 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 2020.
PARTNERSHIPS & LARGE PARTNERSHIPS: File a 2019 calendar year return (Form 1065). Provide each partner with a copy of their final or amended Schedule K-1 (Form 1065) or substitute Schedule K-1 (Form 1065).
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