When are property taxes due in Cass County, North Dakota?

Cass County property taxes are due March 1. A second installment is due October 15. This deadline applies to all counties in North Dakota.

What is the penalty for late property tax payment in Cass County, North Dakota?

The late payment penalty in Cass County is 1% per month interest.

How do I pay Cass County, North Dakota property taxes?

You can pay Cass County property taxes via Online, mail, in-person.

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Cass County Property Tax Due Date

Name: Treasurer
Telephone: (701) 241-5611

North Dakota

(701) 241-5611

2026 Property Tax Due Dates

Official Source

Installment 1overdue

March 1

First half (5% discount if paid by Feb 15)

Installment 2in 93 days

October 15

Second half

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Penalty: 1% per month interestGrace period: None

Payment Methods

Online, Mail, In-Person

Cass County Treasurer

Phone

(701) 241-5611

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Cass County Treasurer

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In Person

Visit the Treasurer's office

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About Property Taxes in North Dakota

North Dakota property taxes are administered at the county level. Property is assessed at its true and full value (market value) and then taxed at a class rate: residential property is taxed at 9% of true and full value, agricultural at 10%, and commercial at 10%. This relatively low residential class rate keeps effective tax burdens moderate. North Dakota does not have a statewide property tax for general purposes. All property tax revenue goes to counties, cities, school districts, and other local taxing units.

Payment & Assessment

North Dakota property taxes are paid in two equal installments: First half: Due March 1 (delinquent after March 1 — the deadline is strict) Second half: Due October 15 A penalty of 3% applies to the first installment if not paid by March 1; 5% on the second installment. Additional interest accrues monthly. Most counties offer online payment. Contact your county treasurer for payment options.

Statewide framework for North Dakota. Your county's specific rates and deadlines are shown above.

Other Counties in North Dakota

Adams Barnes Benson Billings Bottineau Bowman Burke Burleigh

View all North Dakota counties →

About Cass County

Cass County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 184,525, and was estimated to be 201,794 in 2025, making it the most populous county in North Dakota, almost twice the population of Burleigh County, the second most populated county in the state. The county seat and the largest city is Fargo, the most populous city in North Dakota and the 216th-most populous city in the United States. It contains over 25.24% of the state's population. The county is named for George Washington Cass, president of the Northern Pacific Railway from 1872 to 1875. It is the only Cass County in the United States that is not named after Lewis Cass.

Source: Wikipedia — content available under CC BY-SA 4.0