HonestCasa logoHonestCasa
All Tax Guides
Updated 2025 Tax Year

Grant County
Property Tax Guide

Everything you need to know about property taxes in Grant County, ND. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Calculate Your True CostMortgage Calculator
Quick Facts
Tax Rate
Varies by taxing district, approximately 1% base rate plus local levies
Exemptions
4+ Available
Section 1

How Property Tax Works

Grant County, North Dakota operates under the state's property tax system, which serves as the primary funding mechanism for essential local services including public schools, county government operations, emergency services, and infrastructure maintenance. Property taxes in Grant County are calculated based on the assessed value of real property, which is determined by the county assessor and reassessed periodically to reflect current market conditions.

The effective property tax rate in Grant County varies depending on your specific location within the county due to different special taxing districts such as school districts, fire districts, and other local service areas. While North Dakota maintains a base assessment rate of approximately 1% of market value, the actual tax rate applied to your property will depend on the combination of county levy, school district levy, and any applicable special district assessments. Property owners should note that the 2025 tax rates have not yet been finalized by the Grant County Board of Commissioners, so current calculations are based on 2024 rates until the new rates are officially adopted.

Section 2

What Makes Up Your Tax Bill

ComponentRate (2024)Description
County General LevyTBD*Funds county operations, roads, courthouse, sheriff
School District LevyVaries by districtLocal school funding, varies by specific school district
State School Aid LevyStatewide rateState-mandated school funding component
Special DistrictsVaries by locationFire districts, water districts, other local services
Total Effective RateVaries by locationCombination of all applicable levies

*2025 tax rates for Grant County are currently being determined by the county board. The final rates will be available through the Grant County Assessor's office once approved. Property owners should check with local government offices for the most current rate information, as rates can vary significantly based on your specific taxing district within the county. Special district assessments may apply depending on your property's location and the services available in your area.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Grant County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental property taxes in Grant County are additional tax assessments that occur when there are changes to property ownership, new construction, or improvements that alter the assessed value of a property outside of the regular assessment cycle. These supplemental taxes ensure that property tax obligations are properly allocated based on current ownership and property conditions throughout the tax year.

Common triggers for supplemental taxes include the completion of new residential or commercial construction, major property improvements or additions, subdivision of existing parcels, or changes in property classification. When a supplemental assessment is issued, it covers the period from when the change occurred until the end of the current tax year. For example, if a homeowner completes a $100,000 addition to their home in March, the supplemental tax would apply to the increased assessed value from March through the remainder of the tax year, calculated on a pro-rated basis. The county assessor's office will mail a supplemental tax bill separately from the regular annual property tax statement, and payment terms typically follow the same schedule as regular property taxes.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (at ~1%): $3,000
  • Less: Homestead Credit (if applicable): -$300*
  • Net Taxable Value: $2,700
  • Annual Tax (estimated): $270-$400*
  • Monthly (if escrowed): $23-$33

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (at ~1%): $6,000
  • Less: Homestead Credit (if applicable): -$300*
  • Net Taxable Value: $5,700
  • Annual Tax (estimated): $570-$850*
  • Monthly (if escrowed): $48-$71

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (at ~1%): $10,000
  • Less: Homestead Credit (if applicable): -$300*
  • Net Taxable Value: $9,700
  • Annual Tax (estimated): $970-$1,455*
  • Monthly (if escrowed): $81-$121

*Tax credits require application and are not automatic. Actual tax rates vary by specific taxing district within Grant County. These examples use estimated rates pending 2025 rate adoption. Contact the Grant County Assessor for current rates and available tax credit applications.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders in Grant County require borrowers to establish an escrow account to ensure property taxes are paid on time. Your monthly mortgage payment includes principal, interest, property taxes, and insurance (PITI), with the tax portion deposited into the escrow account. Lenders typically collect 1/12th of your annual property tax bill each month, plus an additional cushion amount to account for potential tax increases.

Grant County property taxes are paid in two installments: the first half is due by December 10th, and the second half is due by May 10th of the following year. Your lender will make these payments directly to Grant County on your behalf using funds from your escrow account. Each year, your lender will provide an escrow analysis showing the previous year's activity and any adjustments needed for the coming year. If property taxes increase significantly due to reassessment or rate changes, your monthly escrow payment may increase accordingly. Property owners should verify that their lender is making timely payments and maintain communication with both their lender and the Grant County Treasurer's office to ensure proper payment processing.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Grant County for the current fiscal year? A: Property taxes are paid in two installments - first half due December 10th and second half due May 10th of the following year. If the due date falls on a weekend or holiday, payment is due the next business day.

Q: What tax credits are available and how do I apply? A: Grant County offers a Homestead Property Tax Credit for qualifying primary residences. This credit requires annual application through the county assessor's office. Additional credits may be available for senior citizens (age 65+) and disabled veterans. All credits require separate applications and are not automatically applied.

Q: How does the Homestead Credit work? A: The Homestead Credit helps limit annual assessment increases on your primary residence, not reduce the market value. It must be applied for each year and only applies to properties used as primary residences that meet specific eligibility requirements. Contact the Grant County Assessor for application forms and deadlines.

Q: When are properties reassessed in Grant County? A: North Dakota does not have a uniform statewide reassessment schedule. Contact the Grant County Assessor's office for information about the local assessment cycle and when your property was last assessed.

Q: What if I disagree with my property assessment? A: Property owners can appeal their assessment through the Grant County Board of Equalization. Appeals must typically be filed by specific deadlines following the issuance of assessment notices. Contact the county assessor for appeal procedures and forms.

Q: Are there penalties for late property tax payments? A: Yes, Grant County charges penalties and interest on delinquent property taxes. The specific penalty structure and interest rates are set by county policy. Contact the Grant County Treasurer for current penalty information.

Q: Can I pay my property taxes online? A: Contact the Grant County Treasurer's office directly to inquire about online payment options and accepted payment methods for property taxes.

Q: How do special district taxes affect my bill? A: Your property tax bill includes levies from all applicable taxing districts where your property is located, including school districts, fire districts, and other special service districts. The combination of these districts determines your total effective tax rate, which is why rates vary by location within the county.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
Certificates of Property Tax Ratesnmdfa.state.nm.us
02
State
Property Tax | North Dakota Office of State Tax Commissionertax.nd.gov
03
County
2025 Grant County Budget Orderin.gov
04
County
Grant County Property Taxesnacdashboard.nara.gov
05
County
Grant County: Frequently Asked Questionsin.gov
06
Important Dates in the Treasurer's Officegrantcountynm.gov
07
Tax Doc
Property Tax Credits & Exemptionstax.nd.gov
08
Credits for ND Homeowners & Renterslibrary.nd.gov
09
Tax Doc
Property Tax Credits for ND Homeowners and Renterstax.nd.gov
10
Tax Doc
Property Tax Deadlinestax.nd.gov
All sources verified as of 2025 Tax Year

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Run Your ScenarioTry Calculator

Free • No credit check • 2-minute estimate