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Updated 2025 Tax Year

Martin County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
~1% base rate plus special districts (varies by location within county)
1st Due
May 15
2nd Due
Oct 15
Exemptions
4+ Available
Section 1

How Property Tax Works

Martin County, Minnesota operates under the state's property tax system to fund essential local services including schools, county government operations, road maintenance, and emergency services. Property taxes in Martin County are administered by the County Auditor-Treasurer's office and are based on the assessed value of real estate and personal property within the county boundaries.

The effective property tax rate in Martin County typically ranges around Minnesota's base rate of approximately 1% of assessed value, though actual rates vary significantly by location within the county due to different combinations of special taxing districts. These districts may include school districts, watershed districts, and other local governmental units that levy additional taxes beyond the base county levy. Property owners should note that their specific tax rate depends on which taxing jurisdictions their property falls within, making it important to understand the complete breakdown of local levies that apply to their particular location.

Section 2

What Makes Up Your Tax Bill

The 2025 property tax rates for Martin County are not yet finalized as of the available data. Property owners should check the Martin County Auditor-Treasurer's website for current rate information, which is typically released before the fiscal year begins.

ComponentRateDescription
County General LevyTBDBasic county services and operations
School District LevyVaries by districtLocal school funding (varies by school district location)
Special Taxing DistrictsVariesWatershed, transit, or other special purpose districts
Total Estimated Rate~1.0% - 1.2%Combined rate varies by property location within county

Note: A 0.5% transit sales tax was implemented starting January 1, 2026, but this does not affect property tax calculations. Actual property tax rates vary significantly based on which school district and special taxing districts apply to your specific property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Martin 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 Martin County are additional property tax assessments that occur when there are changes to property ownership, value, or use during the tax year. The most common triggers include new construction completion, property transfers that remove or add exemptions, and corrections to assessed values discovered after the regular assessment period.

When supplemental taxes are levied, they are calculated by applying the current tax rate to the change in assessed value, prorated for the portion of the tax year remaining. For example, if new construction adds $100,000 in assessed value and is completed halfway through the tax year, the supplemental tax would be calculated on $100,000 at the applicable tax rate, then divided by two to reflect the partial year assessment.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Less: Homestead Credit Application (est. reduction): -$15,000
  • Net Taxable Value: $285,000
  • Annual Tax (at ~1.1% estimated rate): $3,135
  • Monthly Payment: $261

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Less: Homestead Credit Application (est. reduction): -$25,000
  • Net Taxable Value: $575,000
  • Annual Tax (at ~1.1% estimated rate): $6,325
  • Monthly Payment: $527

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Less: Homestead Credit Application (est. reduction): -$30,000
  • Net Taxable Value: $970,000
  • Annual Tax (at ~1.1% estimated rate): $10,670
  • Monthly Payment: $889

Note: All credits require application and approval. Actual rates vary by taxing district location within Martin County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Martin County require borrowers to maintain an escrow account for property tax payments. The lender collects monthly escrow payments along with your mortgage payment, then pays your property taxes directly to Martin County when they become due. Lenders typically collect 1/12 of your annual property tax amount each month, plus a small cushion as allowed by federal regulations.

Martin County property taxes are paid in two installments: the first half is due by August 31st, and the second half is due by November 15th. Your lender will make these payments on your behalf if you have an escrow account. You should receive an annual escrow analysis from your lender showing how your property tax payments are managed, and you can verify these payments by checking with the Martin County Auditor-Treasurer's office or accessing your property information online.

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 Martin County property taxes due? A: Property taxes are due in two installments: first half by August 31st and second half by November 15th for the current fiscal year.

Q: What homestead tax credits are available and how do I apply? A: Homestead credits are available for owner-occupied residential properties and limit assessment increases rather than reducing market value. Applications must be filed with the county assessor and are not automatic.

Q: What is the deadline for senior citizens to apply for property tax deferral? A: Senior citizens must file for property tax deferral by November 1st for the following year's taxes. This program allows qualifying seniors to defer payment under specific income and equity requirements.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed by April 30th for disputes over property values that affect current year taxes. Contact the Martin County Assessor's office for appeal procedures and forms.

Q: What are the penalties for late property tax payments? A: Late payments accrue interest and penalties. Contact the Martin County Auditor-Treasurer's office for specific penalty rates and payment options if you cannot meet the standard due dates.

Q: Can I pay my property taxes online? A: Check the Martin County Auditor-Treasurer's website for available online payment options and accepted payment methods.

Q: Why do property tax rates vary within Martin County? A: Tax rates vary because different areas of the county fall within different school districts and special taxing districts (such as watershed or transit districts), each with their own levy rates.

Q: Do I automatically receive all available tax credits? A: No, most tax credits require a separate application to be filed with the appropriate county office. Credits are not automatically applied and have specific deadlines for application.

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