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Updated 2025 Tax Year

Indiana County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
3.47 mills base county rate + school/municipal taxes = 15-25 mills total (varies by district)
Exemptions
4+ Available
Section 1

How Property Tax Works

Indiana County, Pennsylvania operates under a property tax system that funds essential local services including schools, municipal operations, and county government functions. Property taxes are based on assessed values determined by the Indiana County Assessment Office, with tax rates expressed in mills (one mill equals $1 per $1,000 of assessed value). The effective tax rate varies significantly across the county depending on your specific location and the combination of taxing districts that serve your property.

The 2025 property tax rate for Indiana County is approximately 3.47 mills for the base county levy, though your actual rate will likely be higher when school district taxes and municipal taxes are included. Total effective rates typically range from 15-25 mills countywide, but can vary substantially based on your school district and municipality. Properties are assessed at 100% of fair market value, with reassessments conducted periodically by the county assessor's office.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County Base Levy3.47FY 2025 Indiana County general operations
School District12-18Varies by district (largest component)
Municipal/Township1-4Varies by municipality
Special Districts0.5-2Fire districts, libraries, other services
Total Typical Range17-27.5Combined rate varies by location

Note: These rates apply to the 2025 levy year. Your actual tax rate depends on which school district, municipality, and special taxing districts serve your property. Contact the Indiana County Assessment Office at 724-465-3810 for your specific rate combination.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Indiana 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 taxes in Indiana County are additional property tax bills issued when there are changes to property ownership, improvements, or corrections to assessments during the tax year. Common triggers include new construction completion, property transfers with reassessment, or assessment appeals that result in higher values. These taxes cover the period from when the change became effective until the end of the current tax year.

For example, if you complete a $100,000 home addition in June, the county assessor will issue a supplemental assessment for the increased value. With a 20-mill total tax rate, this would result in a supplemental tax of approximately $2,000 ($100,000 ÷ 1,000 × 20 mills), prorated for the remaining months in the tax year. Supplemental taxes are due within 30 days of the bill date and follow the same payment procedures as regular property taxes.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homestead Credit Applied: -$18,000 (assessment reduction, requires application)
  • Net Taxable Value: $282,000
  • Tax Rate: 20 mills
  • Annual Tax: $5,640 ($282,000 ÷ 1,000 × 20)
  • Monthly Escrow: $470

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit Applied: -$18,000 (maximum credit amount)
  • Net Taxable Value: $582,000
  • Tax Rate: 22 mills
  • Annual Tax: $12,804 ($582,000 ÷ 1,000 × 22)
  • Monthly Escrow: $1,067

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homestead Credit Applied: -$18,000
  • Net Taxable Value: $982,000
  • Tax Rate: 24 mills
  • Annual Tax: $23,568 ($982,000 ÷ 1,000 × 24)
  • Monthly Escrow: $1,964

All credits require application and approval. Contact the Assessment Office for current credit amounts and eligibility requirements.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Indiana County require property tax escrow accounts to ensure timely tax payments. Your lender collects 1/12 of your estimated annual property tax bill with each monthly mortgage payment, plus a cushion amount typically equal to two months of taxes. The lender pays your property taxes directly to the county when they become due on December 31st each year.

Lenders typically conduct annual escrow analyses and may adjust your monthly payment based on actual tax bills and account balances. If your property taxes increase due to reassessment or rate changes, expect your monthly payment to rise accordingly. You can verify that your lender has paid your taxes by checking with the Indiana County Assessment Office at 724-465-3810 or reviewing your annual tax statement. Property owners 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 Indiana County? A: Property taxes for FY 2025 are due by December 31st each year. The tax claim period ends on November 1st, after which properties may enter the tax claim process.

Q: What tax credits are available and how do I apply? A: The primary credit is the Homestead Exclusion, which reduces assessed value by up to $18,000 for primary residences. Applications must be received by the Assessment Office by June 1st of the year preceding the tax year. Veterans, senior citizens, and disabled persons may qualify for additional credits that require separate applications.

Q: How does the Homestead credit work? A: The Homestead Exclusion caps assessment increases and reduces your taxable assessed value, not the market value. It only applies to your primary residence and requires an application - it's not automatic. You can only claim one homestead exclusion per person.

Q: How often are properties reassessed? A: Indiana County conducts countywide reassessments periodically. Property owners receive notice of assessment changes and have the right to appeal within 40 days of the notice date.

Q: What are the penalties for late payment? A: Properties with unpaid taxes after December 31st may be subject to the county's tax claim process, which includes additional fees and interest charges.

Q: Can I pay my property taxes online? A: Contact your local tax collector or the Indiana County Assessment Office at 724-465-3810 for current payment options and methods.

Q: Why did my tax bill change if my assessment stayed the same? A: Tax rates (millage) can change annually based on budget needs of your school district, municipality, and county. Even with the same assessment, rate increases will raise your tax bill.

Q: What if I disagree with my property assessment? A: You can appeal your assessment to the Indiana County Board of Assessment Appeals within 40 days of receiving your assessment notice. Contact the Assessment Office for appeal procedures and deadlines.

Verified Sources

Backed by 10 Official Government Sources

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

01
State
2025-26 Real Estate Tax Ratespa.gov
02
Tax Doc
2025 - TAX MILLAGE LISTING -alleghenycountytreasurer.us
03
County
Tax-Rates-2025-1.pdf - Indiana Countyindianacountypa.gov
04
County
Clean & Green Application and Recording - Indiana Countyindianacountypa.gov
05
County
FAQs - Indiana County Pennsylvaniaindianacountypa.gov
06
County
Assessment and Appeal Process - Indiana County Pennsylvaniaindianacountypa.gov
07
County
INDIANA COUNTY APPLICATION FOR HOMESTEAD AND ...indianacountypa.gov
08
Homestead/Farmstead Exclusion (Act 50)alleghenycounty.us
09
Tax Doc
Property Tax Relief Through Homestead Exclusion - PA DCEDdced.pa.gov
10
Action Quiet Title $40.50 Addendum $40.50 Additional pages ...indianacountypa.gov
All sources verified as of 2025 Tax Year

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