North Dakota Personal Tax Extension 2026: 2025 Tax-Year Filing Guide
Individual Income Tax · Form ND-1
North Dakota automatically extends the individual filing deadline when you have a federal extension. The 2025 return and payment are due April 15, with filing extended to October 15. For federal details, see our federal tax extension resources.
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✓ Secure e-filing✓ 24/7 filingNorth Dakota automatically extends the individual filing deadline when you have a federal extension. The 2025 return and payment are due April 15, with filing extended to October 15.
Last updated: September 12, 2026North Dakota Personal Tax Extension: Filing Details
North Dakota automatically extends the individual filing deadline when you have a federal extension. The 2025 return and payment are due April 15, with filing extended to October 15.
Quick Reference: Deadlines and Forms
Use this summary to confirm North Dakota filing deadlines, forms, and payment requirements.
| Item | North Dakota personal return | Deadline or method |
|---|---|---|
| Original deadline | Form ND-1 | April 15, 2026 |
| Extended deadline | Automatic with Federal | October 15, 2026 |
| Return form | Form ND-1 | Use the current form |
| Payment | Form ND-1 | Due April 15, 2026 |
Frequently Asked Questions
Answers about North Dakota personal tax extensions.
The North Dakota extended filing deadline for the 2025 tax year is October 15, 2026.
Review the North Dakota instructions to determine whether a federal extension or state request is required.
An extension gives more time to file, not more time to pay; pay the required amount by the original deadline.
Check the North Dakota revenue or taxation department for current forms and instructions.