Option 1: Pay all or some of your North Dakota income taxes online via: NDTAP.
Option 2: If you owe ND income taxes, you will either have to submit a ND tax return or extension by the tax deadline in order to avoid late filing penalties. You can only eFile and IRS tax extension, but not a North Dakota extension. The tax extension will only avoid late filing penalties until the October deadline.
Note: Unless you pay all your Taxes or eFile your tax return by the October deadline, the late filing penalties will start again after that deadline. If you file a Federal Extension and the IRS accepts it, your extension will be recognize by the State of North Dakota. If you did not file a Federal Extension, you may file ND Form 1.
Option 3: Complete Form ND-1EXT., include a Check or Money Order, and mail both to the address on Form ND-1EXT. Important: Even if you filed an extension, you will still need to file your ND tax return either via eFile or by paper by the October deadline.