DC D-40 Information

A DC taxpayer present in DC for 183 days or more and not domiciled in DC during the tax year is a part-time resident for the period present in DC. Number of months of DC residency. Divide the number of days lived in DC by 30 to determine the number of months of residency. Any remainder over 15 days counts as a full month.

Link to official form info:

Link to official form info for D-40

Tax Reminder works year round to keep official tax form info up-to-date for District of Columbia and the rest of the USA. The IRS and states change their forms often, so we do the hard work for you of figuring out where the official form info is located.

To access the official link to form DC D-40 and get reminded when it's due, sign up for a free Tax Reminder account:

  • Upcoming Due Dates in the Next Year:*
  • Monday Apr 15, 2024
  • Create a free account to see exactly when to file this form, receive email or SMS notification reminders, and to keep a record of filing it in your history.
    * Due dates are based on the filing requirements for this form and may vary depending on your tax year.

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