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Updated 2025 Tax Year

Big Stone County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Averages ~1% statewide, varies significantly by school district and special taxing districts within Big Stone County
1st Due
May 15
2nd Due
Oct 15
Exemptions
5+ Available
Section 1

How Property Tax Works

Big Stone County, Minnesota operates on a property tax system that funds essential local services including schools, roads, public safety, and county operations. Property taxes are calculated by multiplying your property's assessed value by the local tax rate, which averages around 1% statewide but varies significantly within Big Stone County based on your specific location and the special taxing districts that serve your property.

The county assessor determines property values based on market conditions, while tax rates are set annually by various local governing bodies including the county board, school districts, and special service districts. Because Big Stone County includes multiple school districts, townships, and special taxing authorities, your actual tax rate depends on which combination of these districts serves your specific property location. Property owners should expect their exact tax rate to differ from county averages based on these local district variations.

Section 2

What Makes Up Your Tax Bill

ComponentRate RangeDescription
County General Levy0.25% - 0.35%County operations, roads, public safety
School District Levy0.45% - 0.65%Local school funding, varies by district
Township/Municipal0.05% - 0.15%Local government services
Special Districts0.02% - 0.08%Fire, water, sewer, library districts
Total Estimated0.77% - 1.23%Combined rate depends on location

Rates shown are estimates for FY 2025-2026 levy year. The 2025 property tax rate for Big Stone County is expected to increase by approximately 2% from the previous year, with final rates determined by the county board. Your actual rate depends on which school district, township, and special taxing districts serve your property location.

Section 3

When Are Property Taxes Due?

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

First Installment
May 15
Delinquent after Dec 10
Second Installment
Oct 15
Delinquent after Apr 10
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 taxes in Big Stone County are additional property tax bills issued when there are mid-year changes to property ownership, value, or classification. The most common trigger is new construction or major improvements completed after the January 2nd assessment date but before the end of the tax year. When this occurs, the county assessor determines the additional assessed value and applies the current year's tax rate to calculate the supplemental amount.

For example, if you complete a $100,000 home addition in June after the assessment date, and your local tax rate is 1.0%, you would receive a supplemental tax bill for approximately $1,000 ($100,000 × 1.0%) prorated for the remaining months of the tax year. Supplemental taxes are typically due within 30 days of the bill date and are separate from your regular property tax payments.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value: $300,000
  • Less: Homestead Market Value Credit: -$2,400
  • Net Taxable Value: $297,600
  • Tax Rate: 1.0% (varies by district)
  • Annual Tax: $2,976
  • Monthly Escrow: $248

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value: $600,000
  • Less: Homestead Market Value Credit: -$2,400
  • Net Taxable Value: $597,600
  • Tax Rate: 1.0% (varies by district)
  • Annual Tax: $5,976
  • Monthly Escrow: $498

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value: $1,000,000
  • Less: Homestead Market Value Credit: -$2,400
  • Net Taxable Value: $997,600
  • Tax Rate: 1.0% (varies by district)
  • Annual Tax: $9,976
  • Monthly Escrow: $831

Credits shown require application and approval. Actual rates vary by taxing district location.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Big Stone County require property tax escrow accounts, where you pay 1/12 of your annual property tax bill with each monthly mortgage payment. Your lender collects these funds and pays your property taxes directly to the county when due on July 15th. Lenders typically maintain a cushion in your escrow account to cover potential tax increases and may require an initial escrow deposit at closing.

The lender will provide an annual escrow analysis showing your account activity and any required payment adjustments. Since Big Stone County mails property tax statements by March 31st with payment due July 15th, lenders usually receive and pay these bills during the summer months. You should verify that your lender has received your tax statement and confirm the payment amount matches your escrow projections, as any shortfall will result in increased monthly payments for the following year.

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 Big Stone County for FY 2025-2026? A: Property tax statements must be mailed by March 31st, with payment due by July 15th. Unlike some Minnesota counties, Big Stone County does not mail second-half statements - the full annual amount is due July 15th.

Q: What tax credits are available and do I need to apply? A: The primary credit is the Homestead Market Value Credit, which requires you to file a homestead application with the county assessor. Minnesota also offers Property Tax Refunds up to $3,140 for qualifying homeowners, which requires a separate state application. Most credits are NOT automatic and require annual or periodic applications.

Q: How does the Homestead Credit work? A: The Homestead Credit caps your home's assessed value increases and provides market value credits. You must file a homestead application declaring your property as your primary residence. This credit limits annual assessment increases rather than reducing your home's market value.

Q: When does the county assess properties? A: Big Stone County assesses all properties as of January 2nd each year. Assessment notices are typically mailed in March. If you disagree with your assessment, you can appeal to the county Board of Appeal and Equalization, usually meeting in April.

Q: What are the penalties for late payment? A: Properties become delinquent after July 15th and are subject to penalty charges and interest. The Big Stone County board has assigned delinquent property tax collection duties to the county treasurer, who handles enforcement actions.

Q: Can I pay property taxes online? A: Contact the Big Stone County Treasurer's office directly for current online payment options and accepted payment methods.

Q: Why do tax rates vary within Big Stone County? A: Your total tax rate depends on which school district, township, and special districts (fire, library, etc.) serve your property. Rural areas may have different service districts than incorporated cities, resulting in rate variations across the county.

Q: What is Green Acres and when do I apply? A: Green Acres is a property tax deferment program for agricultural land. Applications for tax and assessment deferment must be filed by May 1st for the following tax year.

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