DC - District of Columbia
| Form D-20 | 2015 Corporation Franchise Tax Return | 01/20/2016 |
| Form D-2030P | 2015 Corporate Payment Voucher | 12/22/2015 |
| Form D-20ES | 2016 Declaration of Estimated Franchise Tax for Corporations | 12/22/2015 |
| Form D-2210 | Underpayment of Estimated Income Tax by Individuals | 12/08/2015 |
| Form D-2220 | Underpayment of Estimated Franchise Tax By Businesses | 01/20/2016 |
| Form D-2440 | 2015 Disability Income Exclusion | 12/07/2015 |
| Form D-2441 | Child and Dependent Care Credit for Part-Year Residents | 12/07/2015 |
| Form D-30 | 2015 Unincorporated Business Tax Return | 02/02/2016 |
| Form D-30ES | 2015 Declaration of Estimated Tax for Unincorporated Business | 12/22/2015 |
| Form D-40-40EZ | 2015 Individual Income Tax Forms and Instructions for Single and Joint Filers with No Dependents and All Other Filers | 01/20/2016 |
| Form D-40B | 2015 Nonresident Request for Refund | 01/27/2016 |
| Form D-40ES | 2016 Estimated Payment for Individual Income Tax | 12/09/2015 |
| Form D-41 | 2015 Fiduciary Income Tax Return | 10/09/2015 |
| Form D-65 | 2015 Partnership Return of Income | 02/03/2016 |
| Form FR-127 | 2015 Extension of Time to File Voucher | 12/09/2015 |
| Form FR-127F | 2015 Extension of Time to File Fiduciary Return | 10/13/2015 |
| Form FR-128 | 2015 Extension of Time to File | 12/22/2015 |
| Form FR-329 | 2015 Consumer Use Tax on Purchases and Rentals Homeowner/Renter Property Tax Credit | 12/09/2015 |
| Schedule H | 2015 Homeowner / Renter Property Tax Credit (HRPTC). The HRPTC form can be filed as a stand alone form. | 01/06/2016 |
| Schedule L | 2015 Lower Income Long-Term Homeowner Credit | 12/07/2015 |