Some taxpayers may be required to pay an Additional Medicare Tax if their income exceeds certain limits. Here are some things that you should know about this tax:
March 2024 Tax Due Dates
March 15 Calendar-year S corporations: File a 2023 income tax return (Form 1120-S) and provide each shareholder with a copy of Schedule K-1 (Form 1120S) or a substitute Schedule K-1 or file for an automatic six-month extension (Form 7004). Pay any …