
How to File a North Dakota Tax Extension for Individuals and Businesses
Your Takeaways:
- A North Dakota tax return extension gives extra time to file but does not extend the time to pay income tax.
- The State of North Dakota automatically honors federal tax extensions for most individuals and businesses.
- ND State Tax Commissioner requires corporations to attach a copy of their federal extension when filing their state return.
- Completed extension payment vouchers must be submitted with payments to avoid penalties.
- The corporation extension payment deadline is one month beyond the federal extension period.
- Taxes owed must be paid in full by the original deadline to avoid penalties and interest.
If you need more time to file your North Dakota tax return, you may qualify for a state tax extension. The State of North Dakota follows federal extension rules, meaning that most taxpayers with a federal extension automatically receive a state extension.
However, if you did not request a federal extension, you must submit North Dakota Form 101 to apply for a state-specific extension.
Let’s go over the eligibility, deadlines, and filing process for both individuals and businesses.
North Dakota Tax Extension for Individuals
Who Qualifies for an Individual Tax Extension?
The ND State Tax Commissioner grants automatic extensions to individuals who:
- Filed a federal tax extension (IRS Form 4868)—this automatically extends the North Dakota tax return deadline.
- Did not file a federal extension but submitted North Dakota Form 101 by the original deadline.
How to File an Individual Tax Extension in North Dakota
Option 1: Automatic Extension with Federal Form 4868
- If you file IRS Form 4868, your North Dakota tax return deadline is automatically extended to October 15th.
- No separate North Dakota form is required.
- However, you must pay any state income tax owed by April 15th to avoid penalties.
Option 2: Requesting a State-Specific Extension
- If you did not file Form 4868, submit North Dakota Form 101 by April 15th.
- If approved, your new deadline will be October 15th.

How to Pay Individual Income Tax Due
- Online: Use the ND Tax Payment System at www.ndtaxpayment.com.
- Mail: Submit a completed extension payment voucher (ND-1EXT) with a check or money order.
North Dakota Tax Extension for Businesses
Who Qualifies for a Business Tax Extension?
Businesses in the State of North Dakota may qualify for an extension if they:
- Filed IRS Form 7004 for a federal tax extension (recognized automatically).
- Did not file a federal extension but submitted North Dakota Form 101.
How to File a Business Tax Extension in North Dakota
Option 1: Automatic Extension with Federal Form 7004
- Partnerships, S corporations, and fiduciaries: Automatically receive a North Dakota tax return extension.
- C corporations: Receive an automatic one-month corporation extension payment period beyond their federal extension. However, they must attach a copy of their federal extension when filing their North Dakota tax return.
Option 2: Requesting a State-Specific Extension
- If a business did not file a federal extension, it must submit North Dakota Form 101.
How to Pay Business Taxes Due
1. Online: Use ND Payment Portal.
2. Mail: Submit a completed extension payment voucher with your check.
- C Corporations: Form 40-EXT (Corporation Extension Payment Voucher)
- Partnerships & S Corporations: Form 58-EXT or Form 60-EXT
- Fiduciaries: Form 38-EXT
3. All forms can be found here for North Dakota extension payments.
Important North Dakota Tax Extension Deadlines
The ND State Tax Commissioner has different deadlines for individuals and businesses:

Common Questions About North Dakota Tax Extensions
Do I need to file a separate North Dakota tax extension if I have already filed a federal extension?
- No, for most taxpayers. If you filed IRS Form 4868 (individuals) or IRS Form 7004 (businesses), North Dakota automatically grants an extension.
- Yes, for C corporations. They must attach a copy of their federal extension when filing their North Dakota tax return.
Can I File a North Dakota Extension Electronically?
Yes! If filing online, attach a PDF copy of Form 101 (if required).
What Happens If I Don’t Pay My Taxes on Time?
- Interest: 12% per year accrues on unpaid taxes.
- Penalties: If at least 90% of the tax isn’t paid by the deadline, additional fees apply.
What If My Extension Request Is Denied?
If North Dakota Form 101 is denied, you must file by the original due date or face late penalties.
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