If you file your return on a calendar year basis, the 2020 return is due on or before April 15th, 2021. A fiscal year return is due on the 15th day of the 4th month following the end of the taxable year. When the due date falls on a Saturday, Sunday, or legal holiday, the return is due on or before the next business day. A fiscal year return must be filed on a tax form for the year in which the fiscal year begins. For example, a 2020 tax form must be used for a fiscal year beginning in 2020. (For more information on timely mailing of N.C. tax returns, see Directive TA-18-1 available on the Department’s website.)
Out of the Country. If you are out of the country on the original due date of the return, you are granted an automatic four month extension to file your North Carolina individual income tax return if you fill in the circle on Page 1 of Form D-400. “Out of the Country” means you live outside the United States and Puerto Rico and your main place of work is outside the United States and Puerto Rico, or you are in military service outside the United States and Puerto Rico. The time for payment of the tax is also extended; however, interest is due on any unpaid tax from the original due date of the return until the tax is paid.
Nonresident Aliens. Nonresident aliens are required to file returns at the same time they are required to file their federal returns.