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Updated 2025 Tax Year

Butler County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
27.626 mills total (varies by municipality and school district)
Exemptions
5+ Available
Section 1

How Property Tax Works

Butler County, Pennsylvania operates on a millage-based property tax system that funds essential local services including schools, municipal operations, and county government functions. Property taxes are the primary revenue source for these services, with tax bills reflecting a combination of county, school district, and municipal taxes. The total tax rate for Butler County is 27.626 mills for the 2025 tax year, which includes 21.7750 mills for county real estate tax, 2.9160 mills for debt service, and 2.9350 mills for Butler County Community College.

Property tax rates can vary significantly within Butler County depending on your specific location, as different school districts, municipalities, and special taxing districts may impose additional levies. The county uses a Common Level Ratio Factor of 16.67 for the period from July 1, 2025 through June 30, 2026 (previously 15.63) to ensure fair and uniform assessments across all properties. Property owners should verify their specific total tax rate by checking with their local tax collector, as your actual rate may differ from the base county rate depending on your township, school district, and any special assessment districts that apply to your property.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County Real Estate Tax21.7750Funds general county operations and services
Debt Service2.9160Covers county debt obligations and bond payments
Butler County Community College2.9350Supports community college operations and programs
Total Base Rate27.626Combined county-level taxation for FY 2025-2026

Note: This represents the base Butler County tax rate effective for the 2025 tax year. Your actual total property tax rate will be higher due to additional school district taxes, municipal taxes, and any special district assessments that apply to your specific property location. School district rates typically add 15-25 mills, while municipal rates vary by township or borough. Contact your local tax collector for your complete tax rate breakdown.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Butler 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 Butler County are additional property tax assessments that occur when there are mid-year changes to property ownership, value, or use. The most common triggers include ownership transfers, completion of new construction or major improvements, changes in property use (such as removing agricultural exemptions), or corrections to assessment errors. When a supplemental assessment is issued, it represents the difference between the old and new tax liability, prorated from the effective date of the change through the end of the current tax year.

For example, if you purchase a newly constructed home in Butler County in October that wasn't previously assessed, you would receive a supplemental tax bill covering October through the following March. The supplemental tax is calculated by taking the new assessed value, applying the current tax rate of 27.626 mills (plus applicable school and municipal rates), and prorating it for the months remaining in the tax year. Processing time for supplemental assessments can take up to 30 business days once all required paperwork is received by the Assessment Office.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homestead Credit Applied: -$1,500 (estimated, requires application)
  • Net Taxable Value: $298,500
  • County Tax Rate: 27.626 mills
  • Annual County Tax: $8,245
  • Estimated Total Annual Tax (with school/municipal): ~$15,000
  • Monthly Escrow: ~$1,250

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit Applied: -$1,500 (estimated, requires application)
  • Net Taxable Value: $598,500
  • County Tax Rate: 27.626 mills
  • Annual County Tax: $16,536
  • Estimated Total Annual Tax (with school/municipal): ~$30,000
  • Monthly Escrow: ~$2,500

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homestead Credit Applied: -$1,500 (estimated, requires application)
  • Net Taxable Value: $998,500
  • County Tax Rate: 27.626 mills
  • Annual County Tax: $27,588
  • Estimated Total Annual Tax (with school/municipal): ~$50,000
  • Monthly Escrow: ~$4,167

Note: These examples show county taxes only. Total property taxes include school district and municipal taxes. Homestead credits require annual application and cap assessment increases rather than reducing market value. Actual credit amounts may vary.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Butler County require borrowers to maintain an escrow account for property tax payments, especially when the loan-to-value ratio exceeds 80%. Your lender will collect monthly escrow payments along with your mortgage payment, typically equal to 1/12th of your annual property tax bill plus insurance premiums. The lender then makes tax payments directly to Butler County on your behalf when bills become due. Butler County mails property tax bills in March, with payments due September 1 (first installment), January 1 (second installment), and March 1 (final payment).

Lenders are required to conduct annual escrow analyses to ensure adequate funds are collected, and they may adjust your monthly escrow payment based on changes in your tax assessment or tax rates. If your escrow account has insufficient funds when taxes are due, your lender will advance the payment and typically spread the shortage over the following 12 months. Conversely, if there's an overage exceeding $50, the lender must refund the excess or offer to apply it to the following year's escrow account. Property owners should review their annual escrow statements carefully and verify that tax payments were made correctly and on time to avoid penalties.

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 Butler County property taxes due for the 2025-2026 tax year? A: Tax bills are mailed in March, with three payment deadlines: first installment due September 1, second installment due January 1 of the following year, and final payment due March 1.

Q: What tax credits are available and do I need to apply? A: Butler County offers homestead credits for eligible primary residences, but these require annual application and are not automatic. Contact the Butler County Assessment Office at 724-284-[number] for application requirements and deadlines. Most credits have strict application deadlines that must be met annually.

Q: How does the Homestead credit work? A: The Homestead credit limits the annual increase in your property's assessed value for tax purposes, typically capping increases at a certain percentage rather than reducing the actual market value. You must file an application to receive this benefit, and it only applies to your primary residence.

Q: How often are properties reassessed in Butler County? A: Butler County conducts periodic countywide reassessments, but there's no set schedule. The county uses a Common Level Ratio Factor (currently 16.67 for 2025-2026) to maintain assessment uniformity between formal reassessments.

Q: Can I appeal my property assessment? A: Yes, property owners can appeal assessments through the Butler County Board of Assessment Appeals. Appeals must typically be filed within specific time limits after receiving assessment notices, so act promptly if you believe your assessment is incorrect.

Q: What are the penalties for late property tax payments? A: Late payments incur penalties and interest charges. After March 1, unpaid taxes are turned over to the Butler County Tax Claim Bureau, which may add additional fees and eventually lead to tax lien or tax sale proceedings.

Q: Can I pay my property taxes online? A: Contact the Butler County Treasurer's Office directly to inquire about online payment options, as availability may vary by tax collector and payment type.

Q: Why is my tax rate different from my neighbor's? A: Total property tax rates vary by location within Butler County due to different school districts, municipalities, and special taxing districts. While the base county rate is consistent, your school district and municipal taxes will depend on where exactly your property is located.

Q: What happens if I have questions about prior tax years? A: For prior tax years and past-due amounts, contact the Butler County Tax Claim Bureau rather than the Treasurer's Office, as they handle delinquent tax collections and certifications.

Q: Are there property tax rebate programs available? A: Pennsylvania offers Property Tax/Rent Rebate programs for eligible seniors and disabled individuals. Contact the Assessment Office for information about state rebate programs and eligibility requirements.

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