Whenever a regular tax filing date falls on a Saturday, Sunday, or a legal observed holiday in the District of Columbia, the due date for returns is pushed to the next business day.
For calendar year tax returns reporting 2022 information that are due in 2023, the following due dates will apply.
| Form | 2023 Filing Due Date (Tax Year 2022) |
| Form W-2 (electronic or mail) | January 31st |
| Form 1099 | January 31st |
| Form 1065 – Partnerships | March 15th |
| Form 1120S – S Corporations | March 15th |
| Form 1040 – Individuals | April 18th |
| FinCEN 114 – FBAR (will be allowed to extend) | April 18th |
| Form 1041 – Trusts and Estates | April 18th |
| Form 1120 – C Corporations | April 18th |
| Form 990 Series – Tax Exempt Org | May 15th |
| Form 1065 Extended Return | September 15th |
| Form 1120S Extended Return | September 15th |
| Form | Extended Due Dates |
| Form 1041 Extended Return | September 30th |
| Form 1120 Extended Return | September 15th |
| Form 1040 Extended Return | October 15th |
| FinCEN 114 (Extended with Form 1040) | October 15th |
| Form 990 Series Extended Return | November 15th |