10/15/2026
⏰ October 15 is the final deadline to file your federal individual income tax return if you requested an extension in April. North Dakota individual returns generally follow the same extended deadline.
An extension gave you more time to file, not more time to pay. Any tax owed was still due in April, and unpaid amounts may be subject to interest and penalties.
Still working on your return? Check for missing documents, file as soon as possible, or contact a tax professional for help. If you missed the deadline, filing promptly may help limit additional penalties.
This post provides general information, not individualized tax advice. Contact a tax professional about your specific situation.