Sioux County, ND property tax deadlines
5 coming property tax dates for Sioux County, North Dakota. Each one links to its official source and shows the day LevyDay last checked it.
| Next dates | Bills due | Last day without penalty | Appeal by | Exemption filing |
|---|---|---|---|---|
| Sioux | Jan 1, 2027 holidayndlegis.govOct 21 | Mar 1, 2027ndlegis.govOct 21 | Set by noticendlegis.govOct 21 | Not on file |
Deadlines in date order
| Date and source | Deadline |
|---|---|
| January 1 every yearndlegis.govOct 21 | Bills due Last year's taxes come due |
| February 15 every yearndlegis.govOct 21 | Discount ends Pay in full by this day for 5% off If the county treasurer's office is closed that day, you can pay the next day it's open and keep the discount. Not getting a statement doesn't give you more time. |
| March 1 every yearndlegis.govOct 21 | Last day without penalty First installment, last day without a penalty Late after March 1, with a 3% penalty and more on May 1, July 1 and October 15. If the county treasurer's office is closed that day, you can pay the next day it's open with no penalty. |
| October 15 every yearndlegis.govOct 21 | Last day without penalty Second installment, last day without a penalty Late after October 15, with a 6% penalty. If the county treasurer's office is closed that day, you can pay the next day it's open with no penalty. |
| Varies, see rule set by noticendlegis.govOct 21 | Appeal deadline County board of equalization meets This hears appeals after the local board. The county commissioners meet as the board within the first ten days of June, and the county sets the date. City boards meet within the first fifteen days of April. |
Appealing your assessed value
Appeal by the date on your noticendlegis.govOct 21
If you think the county valued your home too high, you can appeal. Filing with the county is free and you can do it yourself.
Get help filing an appeal
After you send your details, we look for an independent appeal firm or attorney to take your case. We'll be in touch once one has agreed. Firms usually charge a share of what you save, and the one that takes it may pay LevyDay a referral fee.
LevyDay doesn't file appeals or give legal or tax advice. We only pass your details on. The independent firm or attorney that takes your case does the work and sets its own fee.
Get help filing an appealAlready passed
- Apr 1, 2026 Apply for the 2026 primary residence credit tax.nd.govOct 21
Places in Sioux County
They are: Cannon Ball, Fort Yates, Porcupine, Selfridge, Solen. Every place in the county gets the dates above.
Nearby in the North Dakota list
RansomRenvilleRichlandRoletteSargentSheridanSlopeStarkSteeleStutsmanTownerTraill