D.C. Taxes

Washington DC 2021 Taxes Can Be Prepared And efiled With Your IRS Tax Return On eFile.com. Current DC Forms Completed Based On Your Information.

Complete Tax Amendment Form D-40 To Amend Your District of Columbia Income Tax Return. See Information On Penalties, Interest, And Fees For DC Amendments. Tax Return Deadlines and Due Dates.

Find D.C. or District of Columbia Income Tax Brackets, Forms, and Standard Deductions for the current and previous Tax Year.