Form 1120S Extension Due Date - Web generally, the corporation must pay any tax due in full no later than the due date for filing its tax return (not including extensions). Web for most corporations operating on a calendar year ending december 31, this date falls on march 15. There's no final date for the transmission of electronic 1120. Irs begins accepting 1120 electronic tax returns. Form 7004 can be filed on or before.
Irs begins accepting 1120 electronic tax returns. Web for most corporations operating on a calendar year ending december 31, this date falls on march 15. Form 7004 can be filed on or before. Web generally, the corporation must pay any tax due in full no later than the due date for filing its tax return (not including extensions). There's no final date for the transmission of electronic 1120.