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Updated 2025 Tax Year

Sheridan County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Approximately 1% effective rate, varies by taxing district and mill levies
Exemptions
5+ Available
Section 1

How Property Tax Works

Sheridan County, Montana operates under the state's property tax system, where taxes are levied based on assessed property values to fund essential local services including schools, county operations, fire protection, and infrastructure maintenance. Property owners in Sheridan County typically see effective tax rates around 1% of market value, though this can vary significantly based on your property's location within specific taxing districts.

The county uses a mill levy system where your total tax rate depends on which taxing jurisdictions your property falls within - such as school districts, fire districts, water districts, and other special assessment areas. This means two properties with identical values in different parts of Sheridan County may have different tax bills based on their local service districts. Property taxes are collected in two installments annually, providing the primary funding mechanism for local government services throughout the county.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County General~15-20Basic county services, roads, administration
School District~45-60K-12 education funding (varies by district)
Fire District~5-15Fire protection services (varies by district)
Library~2-5Public library services
Weed District~1-3Noxious weed control
Conservation District~1-2Natural resource conservation
Total Range69-105Varies by property location

Note: These rates reflect the FY 2024-2025 levy year and are expressed in mills (1 mill = $1 per $1,000 of taxable value). Your actual rate depends on which special taxing districts serve your property location. Contact the Sheridan County Assessor for your specific district combination.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Sheridan 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 Sheridan County are triggered when property ownership changes or when new construction is completed and added to the tax rolls mid-year. When you purchase property or complete construction after the January 1st assessment date, a supplemental tax bill covers the period from when the change occurred through the end of the current tax year.

The supplemental tax is calculated by determining the difference between the new assessed value and any previous assessment, then applying the current year's tax rate to that difference for the remaining months in the tax year. For example, if you purchase a home in July that was previously assessed at $200,000 but now reflects a $400,000 market value, you'd owe supplemental taxes on the $200,000 difference prorated for July through December (6 months). These supplemental bills are typically issued within 60-90 days of the triggering event and have their own payment deadlines separate from regular property tax installments.

Example Calculation

Property Value: $300,000

  • Market Value: $300,000
  • Assessed Value (Montana rate): $300,000
  • Less: Homestead Credit (if applied): -$7,200
  • Net Taxable Value: $292,800
  • Tax Rate: 75 mills (0.075)
  • Annual Tax: $2,196
  • Monthly (if escrowed): $183

Property Value: $600,000

  • Market Value: $600,000
  • Assessed Value: $600,000
  • Less: Homestead Credit (if applied): -$7,200
  • Net Taxable Value: $592,800
  • Tax Rate: 85 mills (0.085)
  • Annual Tax: $5,039
  • Monthly (if escrowed): $420

Property Value: $1,000,000

  • Market Value: $1,000,000
  • Assessed Value: $1,000,000
  • Less: Homestead Credit (if applied): -$7,200
  • Net Taxable Value: $992,800
  • Tax Rate: 95 mills (0.095)
  • Annual Tax: $9,432
  • Monthly (if escrowed): $786

Note: Homestead credit amounts are estimates and require annual application. Actual tax rates vary by specific taxing district location within Sheridan County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Sheridan County require property tax escrow accounts for loans with less than 20% down payment. Your lender collects monthly escrow payments along with your mortgage payment, typically 1/12th of your estimated annual tax bill. These funds are held in a separate account and used to pay your property taxes when due in November and May.

Lenders must provide annual escrow statements showing account activity and may adjust monthly payments if taxes increase or decrease significantly. Since Sheridan County taxes are due November 30th for the first half and May 31st for the second half, your lender will typically pay these installments on your behalf. Property owners should verify that payments are made timely and review escrow statements for accuracy, as you remain ultimately responsible for ensuring taxes are paid even when using escrow services.

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 Sheridan County? A: For the current FY 2024-2025 tax year, the first installment is due November 30, 2024, and the second installment is due May 31, 2025. You can pay the full year by November 30th to avoid a second payment.

Q: What homestead tax credit is available and how do I apply? A: Montana offers a homestead tax credit that caps assessment increases and provides tax relief for qualifying primary residences. This credit requires annual application with the Sheridan County Assessor's office, typically due by April 15th. The credit doesn't reduce your home's market value but can significantly reduce your tax bill.

Q: Are there other tax credits I should know about? A: Yes, Montana offers various tax credits including disabled veteran credits, elderly/low-income credits, and agricultural exemptions. All require separate applications with specific deadlines and documentation. Contact the Sheridan County Assessor at [county phone] for current application requirements.

Q: How often are properties reassessed? A: Montana conducts property reappraisals on a cyclical basis. Sheridan County properties are typically reassessed every 3-6 years, though market value adjustments may occur annually. You'll receive notice if your assessment changes significantly.

Q: What are the penalties for late payment? A: Late payments incur interest charges and penalties. First installment payments after November 30th accrue interest, and second installment payments after May 31st face additional penalties. Unpaid taxes can eventually result in tax lien sales.

Q: Can I pay my property taxes online? A: Yes, Sheridan County offers online payment options through their website. Electronic payments equal to or greater than $50,000 will be required starting January 1, 2026, under Montana law.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Sheridan County Tax Appeal Board within 30 days of receiving your assessment notice. You'll need evidence supporting your claim that the assessed value exceeds fair market value.

Q: Why did my taxes increase if I didn't make any improvements? A: Tax increases can result from rising property values, new or increased mill levies for local services, or expiration of previous tax credits. Even with a homestead credit, some assessment growth is typically allowed annually.

Q: What happens if I don't receive my tax bill? A: Property owners are responsible for paying taxes even if bills aren't received. Contact the Sheridan County Treasurer's office to request a duplicate bill or verify your mailing address on file.

Q: Do special districts affect my tax rate? A: Yes, your total tax rate includes levies from all applicable districts serving your property - such as school, fire, library, and conservation districts. Properties in different areas of Sheridan County will have different combinations of these district taxes.

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