Cass County Property Tax: Rates, Exemptions & Appeals (2026)

The short answer: for a normal 2026 Cass County residential assessment appeal, you had to get on the local Board of Equalization calendar in April and the Cass County Board of Equalization calendar in early June. As of September 17, 2026, the only published 2026 appeal event still ahead is the North Dakota State Board of Equalization continuation on October 1, 2026—useful only if you preserved your right by appealing at both the local and county levels. (tax.nd.gov)

File locally through your city/township assessor first; for the county level, contact Cass County Director of Tax Equalization, Attn: Tax Equalization, PO Box 2806, Fargo, ND 58108-2806, phone 701-241-5616, or appear at the county board when scheduled. Cass County’s appeal pages do not list a filing fee for Board of Equalization appeals. (cass.northdakotaassessors.com)

How assessments work in Cass County

Cass County uses North Dakota’s “true and full value” system. For residential property, true and full value is intended to reflect market value; the tax bill is not based on that full number directly. The residential taxable value is 4.5% of true and full value: first 50% assessed value, then 9% of assessed value. Your consolidated tax is taxable value multiplied by your parcel’s total mill levy. (tax.nd.gov)

Cass County’s own explanation matters because not every homeowner is assessed by the same office. Fargo and West Fargo have their own city assessing offices; the Cass County Tax Equalization Office maintains rural Cass County property records and coordinates countywide equalization. Cass says property records are updated continually through reappraisal, permits, sale review, and other changes, and that it uses CAMA mass-appraisal software. (casscountynd.gov)

The 2026 cycle is annual, not a once-every-several-years reassessment. North Dakota law values real property as of February 1 each year, and Cass County’s assessment report says assessors prepare January–March values by studying replacement costs, existing-property market activity, and changes affecting current values. The county also mails notices at least 15 days before the local board when notice is required; beginning in tax year 2026, Cass’s assessment FAQ says every property owner receives a Notice of Real Estate Assessment showing current and prior-year assessed value. (casscountynd.gov)

Cass County’s latest annual assessment report available on the county site, the 2025 report for the June 2, 2025 county board, says values were based on market activity from January 1 through December 31 of the prior year. It also reported that 2024 single-family average sale prices across Fargo, West Fargo, and Horace reached $389,290, up 3.7%, and that the residential sales-ratio median before adjustments was 89.55%, below the state’s 90%–100% tolerance, so residential adjustments were made. (casscountynd.gov)

Whether you should appeal

Appeal if you can prove the value is wrong—not simply because the tax bill is high. Cass County’s assessment report is blunt: the board is interested in fairness and accuracy of value, and it will not lower an assessment because you cannot afford the taxes or think taxes are too high. The burden is on you, so bring comparable sales, a recent appraisal showing market value, property-record errors, photos of condition issues, or neighboring property records showing inequity. (casscountynd.gov)

Start with the property record. On the Cass County Director of Tax Equalization site, use Real Estate Search, Sales Search, Comparable Search, and the Residential Sales App. Look for objective errors: finished basement counted when unfinished, wrong square footage, incorrect grade/condition, garage mistakes, extra bath, or a sale that included personal property or unusual financing. (cass.northdakotaassessors.com)

A realistic savings example: Cass County’s annual report listed a 283.20 average mill rate for Cass in its latest county comparison, equal to an effective rate of about 1.27% on true and full value. If a Fargo-area home is assessed at the reported average single-family sale price of $389,290, its residential taxable value is about $17,518. At 283.20 mills, that is roughly $4,960 before special assessments and credits. If evidence supports a reduction to $360,000, taxable value becomes $16,200, and the tax estimate becomes about $4,588—a savings of about $373 for the year. Your actual savings will vary because each parcel’s school, city, park, drain, and special-assessment charges differ. (casscountynd.gov)

Also check credits before spending energy on a valuation appeal. The Primary Residence Credit is up to $1,600, has no age or income limit, is online-only, and the 2026 real-property application window was January 1–April 1, 2026. The Homestead Property Tax Credit for seniors 65+ or permanently and totally disabled homeowners can reduce taxable value by up to $9,000 if income is $0–$40,000, or $4,500 if income is $40,001–$70,000. Disabled veterans with a 50% or greater service-connected disability may qualify for a taxable-value reduction from $4,500 to $9,000, depending on disability percentage. (tax.nd.gov)

Step-by-step how to file

1. Call before filing. Cass County says the first step is to contact the assessor; informal review may fix a clear error without a hearing. Rural Cass: 701-241-5616. Fargo homeowners: Fargo Assessment Department, 701-241-1340, 200 3rd St N, Fargo, ND 58102. West Fargo homeowners: West Fargo Assessor, 701-515-5300 or city assessor contact listed by the city. (casscountynd.gov)

2. File or appear at your Local Board of Equalization. In Cass County, local boards typically meet within the first 15 days of April; the 2026 published schedule ran from April 1 through April 15, with many township meetings held online by Microsoft Teams and phone access at 701-526-4298 using the posted room code. Fargo’s 2026 Board of Equalization met April 14, 2026 at 7:30 a.m. (casscountynd.gov)

3. Go to the Cass County Board of Equalization. North Dakota law requires the county commissioners to meet within the first ten days of June as the county board. Cass County’s 2026 county board item was on the June 1, 2026 commission agenda and reconvened June 15, 2026. At the county level, you may appeal by appearing personally, through a representative, or by mail/other communication that states your reasons. (ndlegis.gov)

4. State appeal only if preserved. The proper state authority is the North Dakota State Board of Equalization. It cannot reduce your individual assessment unless you first appealed to both the local board and the Cass County Board of Equalization, except for narrow statutory notice/irregularity situations. To file, contact the Office of State Tax Commissioner Property Tax Division at propertytax@nd.gov or 701-328-3127; the state says you must complete a questionnaire and submit evidence. (ndlegis.gov)

5. If you missed the boards, consider abatement. The exact form is Application For Abatement Or Refund Of Taxes under N.D.C.C. § 57-23-04. Cass County says abatements are typically used after missing the Boards of Equalization, must be filed in duplicate, physically mailed, and electronic filing is not accepted. The state form says file with the County Auditor by November 1 of the year following the year the tax becomes delinquent. (tax.nd.gov)

What happens after

At the local board, the city council or township board hears your evidence. At the county board, the Cass County Commission sits as the Cass County Board of Equalization; the county auditor is clerk, and proceedings must show how an appeal was made and why a reduction was granted. Cass’s appeal page says county hearings may be in person or virtual, depending on the meeting. (ndlegis.gov)

Cass County’s recent practice is to hear appeals at the first county board meeting, move contested appeals to pending status, allow the Tax Equalization Office time to review new information, and then return with final recommendations at a follow-up meeting about two weeks later. The 2025 county report, for example, used June 2 as the hearing date and June 16 for final recommendations. (casscountynd.gov)

At the state level, county and city representatives may speak, and individual taxpayers may also speak and present written materials or photographs. The State Board’s 2026 locally assessed meeting was August 11, 2026, and the state posted a continuation/follow-up meeting for October 1, 2026 at 10:30 a.m. in the Peace Garden room of the North Dakota State Capitol. (tax.nd.gov)

For abatements, the process is more formal: two copies go to the county auditor, the local governing body makes a recommendation, the county commission decides at a regular meeting, and if approved the assessment is corrected or a refund issued. If rejected, the county must send a written explanation; a district court appeal is due within 30 days of the county commissioners’ decision. (tax.nd.gov)

Local tips

Cass County publishes individual state-level appeal files, but I did not find an official countywide homeowner success rate or median reduction for Cass County. The 2026 state list shows seven Cass state appeals, all named entities rather than ordinary residential homeowners; the 2025 archive shows one Cass appeal by Rasmusson plus several commercial appeals, but no roll-up win-rate table. (tax.nd.gov)

Do not ignore special assessments. Cass County says special assessments and drain taxes are billed separately from ordinary consolidated taxes and are not reduced by the two-year new-construction abatement or by the Homestead Credit. If your complaint is really about street, sewer, drain, or improvement charges, a valuation appeal may not solve it. (casscountynd.gov)

Newer homeowners should check the two-year new-construction abatement/exemption. Cass County says qualifying new construction can reduce true and full value by $150,000 for two years, and gives a $300,000 home example where consolidated tax drops from $3,881.38 to $1,940.69 before considering special assessments. Apply through the appropriate city or county assessor. (casscountynd.gov)

Finally, keep tax-payment deadlines separate from appeal deadlines. Cass County real-estate taxes are due January 1; pay in full by February 15 for a 5% discount on consolidated tax, or pay in two installments due March 1 and October 15. Appealing value does not automatically pause penalties, so ask the Finance Office before withholding payment. (casscountynd.gov)

Cass County Property Tax Rate

Current published county-only levy (2025 Levy Book, for 2025 taxes payable in 2026): 46.73 mills ($46.73 per $1,000 of taxable value). Cass County also states that each parcel’s total consolidated mill levy is parcel-specific and adds the applicable county, city/township, school, park, fire, and other taxing districts.

Source: https://www.casscountynd.gov/home/showdocument?id=8848&t=639010532994882117

When Are Property Taxes Due in Cass County?

Regular real estate property taxes may be paid in two installments: the 1st installment is due by March 1 and the 2nd installment is due by October 15; if a deadline falls on a weekend or county holiday, the deadline is the next business day. If not paying in full for the discount, taxes may be paid in two installments: first half due by March 1, second half due by October 15. The first installment includes one-half of consolidated tax plus all special assessment and drain installments. A 5% discount is available on the consolidated real estate tax amount if paid in full on or before February 15; the discount does not apply to special assessments or drain taxes.

This is not the same as the assessment appeal deadline above. The appeal deadline is your window to contest your assessed value; the payment due date is when the resulting tax bill must be paid. Missing one does not affect the other, but missing either has real consequences — one forfeits your right to appeal for the year, the other can trigger penalties and interest.

Source: https://www.casscountynd.gov/our-county/finance-office/property-taxes-real-estate

Property Tax Exemptions in Cass County

• Primary Residence Credit — North Dakota homeowners who own and occupy a house, mobile home, townhome, duplex, or condo as their primary residence; homes held in trusts also qualify; no age or income limits; one credit per household.. Up to $1,600 against the property tax obligation, not to exceed the property tax due. Yes, annual online application through the North Dakota Office of State Tax Commissioner; once approved, the credit is applied to the property tax statement. Apply by January 1-April 1 annual application window.. (Source: https://www.tax.nd.gov/prc)
• Homestead Property Tax Credit — Homeowners who are age 65 or older, or permanently and totally disabled, who live at and have an ownership interest in the property, and whose income including spouse/dependents does not exceed $70,000 for the calendar year preceding the assessment date.. Income $0-$40,000: taxable value reduced 100%, up to $9,000 taxable value / $200,000 true and full value. Income $40,001-$70,000: taxable value reduced 50%, up to $4,500 taxable value / $100,000 true and full value. Yes, submit application to the local assessor or county director of tax equalization; proof of disability is required if claiming permanent and total disability. Apply by April 1 in the year the property is assessed and for which the credit is requested.. (Source: https://www.tax.nd.gov/homestead-property-tax-credit)
• Disabled Veteran’s Property Tax Credit — Qualifying U.S. Armed Forces veterans with a service-connected disability of 50% or greater, or an extra-schedular/individual-unemployability rating paid at the 100% rate, who were honorably discharged or retired and reside on and have an ownership interest in the homestead; certain surviving spouses may qualify.. Maximum taxable-value reduction is based on disability percentage: 50%=$4,500; 60%=$5,400; 70%=$6,300; 80%=$7,200; 90%=$8,100; 100%=$9,000. Yes, submit application to the local assessor or county director of tax equalization with service-connected disability and honorable discharge documentation; once approved, the credit is applied for those who qualify. Apply by April 1 in the year the property is assessed and for which the credit is requested.. (Source: https://www.tax.nd.gov/property-tax-exemptions-credits/property-tax-credits/disabled-veterans-property-tax-credit)
• Farm Residence Exemption — A qualifying farm residence located on 10 contiguous acres or more of agricultural land and occupied by a farmer who devotes most time to farming/ranching and meets the gross farm income test, with provisions for beginning farmers and farmers retired due to age or illness.. Qualifying farm residence exemption; no exemption cap stated by the State Tax Commissioner page. Yes, complete the Application for Farm Residence Property Tax Exemption and Statement of Farm Gross Income and provide them to the county director of tax equalization. (Source: https://www.tax.nd.gov/farm-residence-exemption)
• Two-Year Tax Abatement / New Home Construction Exemption — Properties with qualifying new construction in the appropriate participating jurisdiction; Cass County notes the exemption must be applied for through the appropriate city or county assessor’s office.. Up to $150,000 is taken off the true and full value of the home for figuring real estate property taxes for two years; it does not reduce special assessments or drain taxes. Yes, apply through the appropriate city or county assessor’s office. (Source: https://www.casscountynd.gov/our-county/finance-office/property-taxes-real-estate)
• Remodeling Exemption for Improvements to Commercial and Residential Buildings — Qualifying residential or commercial remodeling/improvement projects in Cass County jurisdictions where the exemption is available and approved.. Exemption applies only to the new value added by the project; duration can be 3 or 5 years depending on the scope of the project, while the property continues to pay tax on existing value. Yes, application is required. Apply by Prior to February 1 of the year following completion of the project.. (Source: https://www.casscountynd.gov/home/showpublisheddocument/8654/639071887506530000)

How to Look Up Your Property Record in Cass County

You can look up your property's official record at https://proptax.casscountynd.gov/. Cass County’s official property tax lookup lets users search by address, statement number, or parcel number and shows parcel details, current statement, mill levy rate, consolidated tax, specials, drains, installment due amounts, assessments, and homestead/veteran credits on file.