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Updated 2025 Tax Year

Martin County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.4647% county rate + school district and township levies (varies by location within county)
1st Due
May 10
2nd Due
Nov 10
Exemptions
5+ Available
Section 1

How Property Tax Works

Martin County, Indiana operates under a property tax system that funds essential local services including schools, law enforcement, fire protection, roads, and county government operations. For the 2025-2026 levy year, the county's tax rate is 0.4647%, though this represents just the county portion of your total property tax bill. Your actual effective tax rate will be higher when combined with school district, township, library, and other special taxing district levies that vary by location within the county.

Property taxes in Martin County are calculated based on assessed value, which is determined by the County Assessor and represents a percentage of your property's market value. Indiana uses a uniform assessment methodology, with residential properties assessed at true tax value. The actual tax rate you pay depends on your specific location within Martin County, as different areas fall under different combinations of school districts, townships, fire districts, and other special taxing units. Most homeowners can expect their total effective tax rate to be significantly higher than the base county rate once all applicable district taxes are included.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
Martin County0.4647%Base county operations, sheriff, roads, general fund
School DistrictVariesLocal school corporations (varies by district within county)
TownshipVariesFire protection, poor relief, cemetery maintenance
Library DistrictVariesPublic library operations and facilities
Special DistrictsVariesEconomic development, cumulative funds, debt service

Rates shown are for levy year 2025-2026. Your total tax rate is the sum of all applicable taxing units for your property location. The county rate of 0.4647% represents approximately 33.37% of the total tax bill for most properties, with school districts typically comprising the largest portion of your total tax burden.

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 10
Delinquent after Dec 10
Second Installment
Nov 10
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 in property ownership, new construction, or significant improvements made to existing properties during the tax year. These taxes are calculated on a prorated basis from the date the change occurred through the end of the tax year.

For example, if you purchase a home in Martin County mid-year and the previous owner had homestead and other tax credits that you don't qualify for, you may receive a supplemental tax bill for the difference in tax liability. Similarly, if you complete new construction or major renovations that increase your property's assessed value, supplemental taxes will be levied on that increased value for the remaining months of the tax year. Supplemental tax bills are typically issued separately from regular tax bills and have their own due dates, usually 30-60 days from the issue date.

Example Calculation

$300,000 Property:

  • Assessed Value: $300,000
  • Standard Homestead Credit Applied: $81,400 (reduces taxable value)
  • Net Taxable Value: $218,600
  • Estimated Total Tax Rate: 1.2% (including all districts)
  • Annual Tax: $2,623
  • Monthly Escrow: $219

$600,000 Property:

  • Assessed Value: $600,000
  • Standard Homestead Credit Applied: $81,400
  • Net Taxable Value: $518,600
  • Estimated Total Tax Rate: 1.2%
  • Annual Tax: $6,223
  • Monthly Escrow: $519

$1,000,000 Property:

  • Assessed Value: $1,000,000
  • Standard Homestead Credit Applied: $81,400
  • Net Taxable Value: $918,600
  • Estimated Total Tax Rate: 1.2%
  • Annual Tax: $11,023
  • Monthly Escrow: $919

Note: Homestead credit requires application and must be refiled every even year. Total tax rates vary by location within Martin County based on applicable special taxing districts.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Martin County require property tax escrow accounts, where you pay 1/12th of your annual property tax bill with each monthly mortgage payment. Lenders collect these funds in a separate account and pay your property taxes directly to the County Treasurer when due. Martin County has two annual payment due dates, with the current schedule showing taxes due on May 10, 2026, and a second payment typically due in the fall.

Your lender will receive tax bills directly from the county and should pay them before the due dates to avoid penalties. However, it's important to verify that payments are made timely, as you remain ultimately responsible for the taxes even when using escrow. Lenders are required to provide annual escrow account statements showing deposits, payments, and account balances. If your tax bill changes significantly due to reassessment or changes in tax rates, your lender may adjust your monthly escrow payment and may require additional funds to cover any shortage in the account.

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 Martin County for 2025-2026? A: Property taxes are due twice annually. The current due date is May 10, 2026, with a second payment typically due in the fall. You'll receive statements with specific due dates in the spring.

Q: What homestead tax credit is available and how do I apply? A: The Standard Homestead Credit reduces your taxable assessed value and requires application with the County Assessor before April 1st of the assessment year. The application must be refiled every even year and requires that you occupy the property as your principal residence.

Q: How does the homestead credit work? A: The homestead credit doesn't reduce your property's market value but instead caps annual assessment increases and provides a standard deduction from taxable value. It's designed to limit tax growth rather than eliminate taxes entirely.

Q: How often are properties reassessed in Martin County? A: Indiana conducts annual assessments, but major reassessments typically occur every few years. The County Assessor reviews property values annually and may adjust assessments based on market conditions, improvements, or other factors.

Q: What happens if I pay my property taxes late? A: Late payments incur penalties and interest charges. The specific penalty structure varies, but typically includes a percentage penalty plus monthly interest charges until the full amount is paid.

Q: Can I pay my property taxes online? A: Contact the Martin County Treasurer's office for current online payment options and accepted payment methods, as these services may vary.

Q: How do I appeal my property assessment? A: Property assessment appeals must be filed with the Martin County Property Tax Assessment Board of Appeals within specific deadlines after receiving your assessment notice. Contact the County Assessor's office for appeal forms and procedures.

Q: Do senior citizens qualify for additional tax credits? A: Indiana offers various tax credits for seniors, disabled persons, and veterans that require separate applications. Contact the Martin County Assessor's office at (the courthouse in Shoals) for information about available credits and application requirements.

Q: Why did I receive a supplemental tax bill? A: Supplemental taxes occur when there are mid-year changes such as change of ownership, new construction, or loss of tax credits that applied to previous owners. These bills are prorated for the portion of the year the change was in effect.

Q: What special districts affect my tax rate in Martin County? A: Your total tax rate includes levies from your school district, township, library district, and any applicable special districts. The specific combination depends on your property's location within the county, which is why tax rates vary throughout Martin County.

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