How to Appeal Your Property Tax in Pennsylvania: Step-by-Step Guide

Why Property Tax Appeals Matter in Pennsylvania

Pennsylvania property taxes rank among the highest in the country. The state has no single statewide rate — your bill depends on overlapping levies from your county, municipality, and school district. If your assessed value is too high, you’re overpaying on all three.

The good news: Pennsylvania law gives every property owner the right to challenge their assessment. The process runs through your County Board of Assessment Appeals, and you don’t need a lawyer to file. Thousands of homeowners appeal successfully each year, saving hundreds or even thousands of dollars annually.

This guide walks through the full appeal process, from checking your assessment to presenting your case at a hearing. If you’re buying a home and want to understand how property taxes work in Pennsylvania, start with our property tax calculator to estimate your annual bill.

How Pennsylvania Property Tax Assessments Work

Before you appeal, you need to understand what you’re actually challenging. Pennsylvania property taxes have three moving parts:

Assessed value: This is the value your county assigns to your property. It’s supposed to reflect market value, but most counties haven’t done a full reassessment in decades. Some counties base assessments on values from the 1990s or earlier.

Common Level Ratio (CLR): Because assessments are outdated, the State Tax Equalization Board publishes a Common Level Ratio each year. The CLR converts your old assessment into a current fair market value estimate. For example, if your county’s CLR is 0.54, your assessed value represents roughly 54% of your home’s actual market value.

Millage rate: Each taxing body (county, municipality, school district) sets a millage rate. One mill equals $1 per $1,000 of assessed value. Your total tax bill is your assessed value multiplied by the combined millage rate from all three taxing bodies.

You can appeal if your assessed value — when adjusted by the CLR — exceeds your home’s actual fair market value. You can also appeal if comparable properties in your area are assessed at lower values relative to their market prices. For background, read our guide: Pennsylvania property tax system explained.

Step 1: Check Your Current Assessment

Start by looking up your property’s assessed value. Every Pennsylvania county maintains public assessment records, usually searchable online through the county assessor’s website. You’ll find:

• Your property’s assessed value (land + improvements)
• The property description (square footage, lot size, bedrooms, bathrooms)
• The base year your assessment uses
• Your current tax bill breakdown by taxing body

Write down the assessed value and check the property description carefully. Errors in square footage, room counts, or lot size are common — and they’re the easiest wins in an appeal. If your county lists your home at 2,400 square feet but it’s actually 2,100, that alone could justify a reduction.

Next, look up the current CLR for your county on the State Tax Equalization Board website. Multiply your assessed value by the CLR to get the implied fair market value. If that number is higher than what your home would actually sell for, you have grounds to appeal.

Step 2: Research Comparable Sales

Comparable sales (“comps”) are the strongest evidence in a property tax appeal. You need recent sales of similar homes in your area that sold for less than your implied fair market value.

Look for 3-5 comparable properties that match your home on these criteria:

• Location: Same neighborhood or within a mile. Same school district is ideal.
• Size: Within 10-15% of your home’s square footage
• Age and condition: Similar year built and overall condition
• Style: Same property type (single-family, townhouse, condo)
• Sale date: Within the last 12 months, preferably within 6 months

You can find sales data through your county’s recorder of deeds, real estate websites, or by requesting data from a local real estate agent. Print or save each comparable sale with the sale price, address, property details, and sale date.

If you’re also estimating what you can afford in Pennsylvania, use our affordability calculator to see how property tax levels affect your purchasing power.

Step 3: Consider Getting an Independent Appraisal

A professional appraisal from a licensed Pennsylvania appraiser costs $300-$500 but adds significant weight to your case. The appraiser will provide a formal opinion of your home’s market value, backed by comparable sales analysis and a physical inspection.

An appraisal is especially worth the investment if:

• Your potential tax savings are $500 or more per year
• Your property has unique features that make comparisons difficult
• You’ve made no major improvements but your assessment increased
• You recently purchased the home for less than the assessed/CLR-adjusted value

If you bought the home recently, your purchase price is powerful evidence — it’s a real market transaction that proves what a willing buyer actually paid. Bring your settlement statement to the hearing.

Step 4: File Your Appeal

Appeals go to your County Board of Assessment Appeals. Filing requirements vary by county, but the general process is similar statewide.

Deadlines: Most counties set their appeal deadline between August 1 and September 1. Some counties use different dates. Check with your county board for the exact deadline — miss it and you’ll wait until next year. A few counties (including Allegheny) accept appeals year-round for certain situations.

Filing the form: Download the appeal application from your county’s website or pick one up in person. The form asks for your property details, your current assessment, the value you believe is correct, and your reasons for the appeal. Some counties now accept electronic filing.

Filing fee: Most counties charge a small filing fee, typically $5-$25. Some counties have no fee at all.

When filling out the form, state your requested value clearly. Base it on your comparable sales research or your appraisal. Don’t lowball — request a fair value that you can support with evidence.

Step 5: Prepare Your Presentation

After filing, you’ll receive a hearing date, usually within 60-90 days. Use that time to organize your evidence.

Bring to the hearing:

• A copy of your appeal application
• Your comparable sales data, printed and organized
• Your appraisal report (if you obtained one)
• Photos of your property showing condition issues, if applicable
• Your settlement statement if you purchased recently
• A brief written summary of your argument (one page)
• The current CLR for your county

Practice explaining your case in 5-10 minutes. Focus on the numbers: here’s my assessed value, here’s the CLR-adjusted value, here’s what comparable homes actually sold for, and here’s what my home is actually worth.

Step 6: Attend the Hearing

County Board hearings are informal compared to court proceedings. You’ll sit across from board members (usually 2-3 people) and present your case. The county assessor or a representative may also attend to defend the current assessment.

Tips for the hearing:

• Be respectful and factual. Don’t argue about tax rates or government spending — those aren’t relevant to the assessment.
• Focus on market value. The only question is whether your assessed value (adjusted by CLR) exceeds your property’s fair market value.
• Present your comps clearly. A simple chart showing each comparable property’s address, sale price, size, and sale date is effective.
• Point out errors. If the county’s records have wrong square footage, room counts, or property features, show the correct data.
• Bring extra copies. Give the board members copies of all your evidence.

You’ll receive the board’s decision by mail, usually within 30-60 days. If the board reduces your assessment, the new value typically applies to the current tax year and going forward.

What Happens If You Lose

If the County Board denies your appeal or gives a smaller reduction than you requested, you have the right to appeal further to the Court of Common Pleas. This is a formal legal proceeding where hiring an attorney becomes more practical.

The court appeal must be filed within 30 days of the board’s decision (check your county’s specific deadline). Court appeals involve more time and expense, but they can result in larger reductions, especially for properties with significant overassessment.

Some property tax appeal attorneys work on contingency, taking a percentage of your tax savings rather than charging hourly fees. This arrangement makes sense if your potential savings are substantial.

Common Mistakes to Avoid

Several errors can weaken your appeal or cause it to fail outright:

Missing the deadline. This is the most common problem. Mark your county’s filing deadline on your calendar months in advance.

Arguing about tax rates. The board can only change your assessed value, not the millage rates. Keep your argument focused on valuation.

Using Zillow estimates as evidence. Online estimates are not appraisals. Boards want actual sales data from recorded transactions.

Ignoring the CLR. Your raw assessed value doesn’t matter — what matters is your assessed value multiplied by the CLR compared to fair market value. Many homeowners don’t realize their CLR-adjusted value is far above what their home would sell for.

Skipping the hearing. If you don’t show up, your appeal is dismissed. If you can’t attend, ask the board about rescheduling options.

For a broader look at how property taxes work across the state, read our guide to the Pennsylvania property tax system.

County-Specific Appeal Tips

While the general process is similar statewide, some of Pennsylvania’s largest counties have their own quirks:

Philadelphia: Philadelphia completed its Actual Value Initiative (AVI) reassessment in 2019, bringing assessments closer to market value. This means the CLR is near 1.0, and your assessed value should be close to your home’s actual market value. Philadelphia uses the Office of Property Assessment (OPA), and appeal deadlines are typically in early October. The city also allows informal reviews before the formal board hearing — take advantage of this step.

Allegheny County (Pittsburgh): Allegheny County’s last full reassessment was in 2012 and used 2012 base year values. The county accepts appeals year-round, though there’s still an annual filing deadline for the upcoming tax year. Allegheny County has an online appeal filing option through its website, making the process more convenient than in-person filing.

Montgomery, Chester, Delaware, and Bucks Counties: These suburban Philadelphia counties use base year assessments from the 1990s or earlier (Bucks County from 1972). The CLR in these counties is very low — often 0.10 to 0.30 — meaning assessed values represent only a fraction of current market values. When preparing your appeal, make sure you understand the CLR adjustment, because a home assessed at $60,000 in Bucks County might have a fair market value of $400,000 or more.

Lancaster County: Lancaster has conducted piecemeal reassessments over the years, so the CLR varies and may be closer to 1.0 in areas recently reassessed. Check the current CLR before deciding whether to appeal.

Regardless of your county, the fundamental strategy is the same: prove that your assessed value (adjusted by the CLR) exceeds your property’s actual fair market value using documented comparable sales or a professional appraisal.

Hiring a Professional to Handle Your Appeal

While you can handle a County Board appeal yourself, some homeowners prefer to hire a property tax appeal firm or attorney. Here’s when it makes sense:

• High-value properties: If your home is worth $500,000 or more, the potential savings justify professional fees
• Complex properties: Unique homes, mixed-use buildings, or properties with unusual features may need expert valuation
• Significant overassessment: If the gap between your CLR-adjusted value and fair market value is $100,000+, a professional can maximize your reduction
• Court appeals: If you’re taking your case to the Court of Common Pleas, legal representation is strongly recommended

Property tax appeal firms in Pennsylvania typically work on a contingency basis, charging 25-50% of your first year’s tax savings. If they don’t win a reduction, you don’t pay. This structure aligns their incentives with yours — they only get paid if you save money.

Before hiring a firm, ask about their success rate in your county, how many appeals they handle per year, and whether they use professional appraisers as part of their service. Check reviews and ask for references from other homeowners in your area.

How Much Can You Save?

Savings depend on the size of your overassessment and your combined millage rate. Here’s a rough example:

A $40,000 reduction in assessed value at a 30-mill combined rate saves $1,200 per year. Over 10 years, that’s $12,000 — more than enough to justify a $400 appraisal and a few hours of preparation.

If you’re planning to sell and want to estimate your proceeds after property taxes and other costs, try our seller net proceeds calculator.

Special Programs That Reduce Property Taxes

Beyond the appeal process, Pennsylvania offers several programs that can reduce your property tax bill:

Homestead Exclusion: If you live in your home as your primary residence, you may qualify for a homestead exclusion that reduces your assessed value for school district taxes. The exclusion amount varies by school district. See our guide to filing for the homestead exclusion for step-by-step instructions.

Property Tax/Rent Rebate Program: Pennsylvania’s rebate program provides up to $1,000 (expanded in recent years) for eligible seniors, widows/widowers, and people with disabilities. Income limits apply.

Senior Citizen Tax Freeze: Some municipalities and school districts offer a property tax freeze for seniors who meet income requirements, locking in their current tax amount regardless of future rate increases.

If you’re buying your first home in Pennsylvania, explore available assistance programs through our first-time homebuyer programs guide.

Frequently Asked Questions

Can my property tax assessment increase after I file an appeal?

Yes. When you file an appeal, the county or school district can file a counter-appeal seeking a higher assessment. This is called a “cross-appeal.” It doesn’t happen often, but it’s a risk — particularly if your home has had significant improvements that the county hasn’t yet captured. Make sure you have solid evidence that your home’s market value is below the CLR-adjusted assessment before filing.

Do I need a lawyer to appeal my property tax in Pennsylvania?

No. The County Board of Assessment Appeals process is designed to be accessible without legal representation. Most homeowners handle their own appeals at this level. If you appeal further to the Court of Common Pleas, hiring an attorney is more practical since that involves formal court procedures, filing requirements, and potential depositions.

How long does the appeal process take from filing to decision?

The County Board typically schedules your hearing within 60-90 days of filing and issues a decision within 30-60 days after the hearing. Total timeline: roughly 3-5 months from filing to final decision at the county level. Court appeals can add another 6-12 months.

If I win my appeal, does the lower assessment last forever?

The reduced assessment stays in place until the county conducts a reassessment, you make significant improvements to the property, or the county or a taxing body files a new assessment challenge. In practice, since most Pennsylvania counties rarely reassess, a successful appeal often provides savings for many years.

Can I appeal my property tax assessment every year?

Yes, you can file an appeal each year during the open filing period. However, if your assessment was recently adjusted through an appeal and nothing has changed materially, filing again immediately is unlikely to produce a different result. Most homeowners wait until market conditions shift or they discover new comparable sales that support a lower value.

Ready to estimate your monthly housing costs including property taxes? Use our mortgage calculator to see how taxes affect your total payment. If you’re planning a move to the Philadelphia area, read our Philadelphia cost of living guide for a full breakdown of housing costs.