● March 1 – Due date for farmers and fishermen who chose not to make 2015 estimated tax payments to file 2015 tax returns and pay taxes in full to avoid underpayment penalties.
● March 15 – 2015 calendar-year corporation income tax returns are due.
● March 15 – Deadline for calendar-year corporations to elect S corporation status for 2016.
● March 31 – Payers who file electronically must submit 2015 information returns (such as 1099s) to the IRS.
● March 31 – Employers who file electronically must submit 2015 W-2 copies to the Social Security Administration.
McFadyen & Sumner, CPAs PA 