Note:

As a result of Public Law 114-41 Section 2006, the return due date changed for partnership returns (Forms 1065, 1065-B and 8804) and for corporations (with the exception of Forms 1120-C, 1120-IC-DISC and Form 1120-S) effective for tax periods beginning after December 31, 2015. However, this law did not change the due date for Corporate return periods that end June 30. They will remain the same until tax period 202606, at which time they will also change.

See table below for Form 1120-S Return and Extended Due Dates. Form 1120-S is due the 15th day of the 3rd month following the end of the tax period (March 15 for a calendar year return).

Period Ending

Return Due Date

Extended Due Date

Jan. 31

4-15

10-15

Feb. 28

5-15

11-15

Mar. 31

6-15

12-15

Apr. 30

7-15

1-15

May 31

8-15

2-15

June 30

9-15

3-15

July 30

10-15

4-15

Aug. 31

11-15

5-15

Sept. 30

12-15

6-15

Oct. 31

1-15

7-15

Nov. 30

2-15

8-15

Dec. 31

3-15

09-15