How to Appeal Your Property Taxes in Pennsylvania
A neutral, homeowner-friendly guide to challenging your county assessed value in Pennsylvania — the steps, the evidence, and the deadlines to check.
How to Appeal Your Property Taxes in Pennsylvania
To appeal your property taxes in Pennsylvania, you file a formal assessment appeal with your county's Board of Assessment Appeals, arguing that the county's assessed value of your property is higher than its actual market value; you must file within the window printed on your annual assessment notice, present evidence such as comparable sales, and attend a hearing where the board decides whether to lower your assessment.
Property taxes in Pennsylvania are based on the assessed value the county assigns to your home, multiplied by the millage rates set by your county, municipality, and school district. You cannot appeal the tax bill or the millage rates directly, but you can challenge the assessed value. If your assessment is too high relative to what your property would actually sell for, you are likely overpaying, and an appeal is the mechanism to fix it.
This guide walks a Pennsylvania homeowner through the general process. Because rules, deadlines, and forms vary by county, always confirm the specifics on your own assessment notice and your county assessment office's website before acting.
Why assessed value is the thing you're appealing
In Pennsylvania, each county sets its own assessed values and does not reassess on the same schedule as its neighbors. To compare assessments fairly across counties, the state uses a Common Level Ratio (CLR) — a figure that expresses the relationship between assessed values and current market values in a given county. In an appeal, the board typically applies the CLR to your property's market value to determine what your assessment should be. If your current assessment is higher than that figure, you have grounds to argue for a reduction.
The practical takeaway: your goal is to establish your home's fair market value with evidence, then show that the assessment implies a value higher than the market supports.
Step-by-step: how to appeal
- Read your assessment notice carefully. It states your assessed value and the deadline to appeal. Deadlines in Pennsylvania are typically tied to a fixed date or a set number of days — do not rely on memory or on what a neighbor in another county did. Check the notice itself.
- Confirm your county's filing window and forms. Look up your county Board of Assessment Appeals (sometimes called the Assessment Office). Annual appeal deadlines and any interim-appeal rules differ by county.
- Determine your property's fair market value. Gather recent sale prices of comparable homes (similar size, age, condition, and location), a recent appraisal if you have one, or a recent purchase price if you bought the home recently.
- Do the math with the Common Level Ratio. Compare your assessed value against what your market-value estimate would produce once the county's CLR is applied. This tells you whether an appeal is worth pursuing and how much reduction to request.
- Complete and submit the appeal form before the deadline, following your county's filing instructions (some accept mail, some in-person, some online). Keep proof of submission.
- Assemble your evidence packet. Comparable sales, photos documenting condition issues, an appraisal, and any documentation of problems that reduce value (structural issues, outdated systems, etc.).
- Attend your hearing. Present your evidence clearly and concisely to the board. Hearings are usually informal. Bring copies for the board members.
- Review the decision. If the board reduces your assessment, your future tax bills should reflect it. If you disagree with the outcome, Pennsylvania allows a further appeal to the county Court of Common Pleas — note that this step has its own deadline and is more formal.
Evidence checklist
- Recent comparable sales (ideally 3–5 similar nearby homes)
- A professional appraisal, if available
- Your recent purchase price and closing documents, if you bought recently
- Photos of any conditions that lower value (damage, deferred maintenance, functional problems)
- Repair estimates or inspection reports supporting condition claims
- A clear written statement of the market value you believe is correct and why
What makes a strong appeal
The board is persuaded by market evidence, not by how high the tax bill feels. The most convincing appeals show that comparable properties recently sold for less than your assessment implies. Vague complaints about taxes being "too high" rarely succeed; documented comparables and a defensible market-value figure do. Presenting your case calmly, in market terms, gives you the best chance of a reduction.
Common mistakes to avoid
- Missing the deadline. This is the most common and most fatal error. The window is on your notice.
- Arguing about the tax rate. You can only appeal the assessed value, not millage.
- Bringing no comparables. Opinion without market data seldom moves the board.
- Using dissimilar comps. Homes must be genuinely comparable in size, condition, and location.
- Assuming another county's rules apply. Pennsylvania counties differ; verify yours.
After the appeal
If you win a reduction, keep the decision documentation and watch your next assessment notice to confirm the change carried through. Reassessments and market shifts can change your situation year to year, so it is reasonable to re-check your assessment periodically. If you were unsuccessful and still believe the assessment is wrong, review the deadline and requirements for appealing to the Court of Common Pleas, or consult a professional who handles Pennsylvania assessment appeals.
Appealing is a right available to every Pennsylvania property owner, and the process is designed to be navigable without a lawyer for straightforward residential cases. The key is timely filing and solid market evidence.
Key facts
- Property tax appeals in Pennsylvania are filed with the county Board of Assessment Appeals and challenge the property's assessed value, not the tax rate.Source: General Pennsylvania county assessment appeal process · as of 2026-09-24
- Pennsylvania uses a Common Level Ratio (CLR) to relate a county's assessed values to market values, and boards apply it when evaluating appeals.Source: Pennsylvania State Tax Equalization Board (CLR concept) · as of 2026-09-24
- Appeal deadlines and forms vary by county and are stated on the homeowner's annual assessment notice.Source: County assessment office notices · as of 2026-09-24
- A homeowner who disagrees with the board's decision may appeal further to the county Court of Common Pleas.Source: General Pennsylvania assessment appeal process · as of 2026-09-24
Frequently asked questions
+What am I actually appealing — my tax bill or my home's value?
You are appealing the assessed value your county assigns to your property, not the tax bill or the millage rates. Lowering the assessed value is what reduces your taxes, since the bill is calculated by multiplying that value by the local millage rates.
+When is the deadline to file a property tax appeal in Pennsylvania?
Deadlines are set by each county and are printed on your annual assessment notice. They typically fall on a fixed date or within a set number of days, but they differ by county, so confirm the exact deadline on your own notice or your county assessment office's website rather than relying on a general date.
+What is the Common Level Ratio and why does it matter?
The Common Level Ratio (CLR) is a state-published figure expressing the relationship between assessed values and market values in a given Pennsylvania county. In an appeal, the board generally applies the CLR to your property's market value to determine the correct assessment, so it is central to calculating whether you are over-assessed.
+What evidence do I need for a successful appeal?
The strongest evidence is recent comparable sales of similar nearby homes, and where available a professional appraisal or your recent purchase price. Photos and estimates documenting condition problems that reduce value also help. Boards respond to market data, not to arguments that taxes simply feel too high.
+Do I need a lawyer to appeal my property taxes in Pennsylvania?
For a straightforward residential appeal at the county Board of Assessment Appeals, many homeowners represent themselves, since hearings are usually informal. A lawyer or appraiser can help for complex properties or if you escalate to the Court of Common Pleas, which is more formal and has its own deadlines.
+What happens if the board denies my appeal?
If you disagree with the board's decision, Pennsylvania allows a further appeal to the county Court of Common Pleas. This step is more formal and has a separate filing deadline, so review those requirements promptly or consult a professional if you intend to pursue it.
+How often can I appeal my assessment?
Pennsylvania counties generally allow an annual appeal during a set filing window, and some also permit interim appeals after certain events. Because market values and assessments change over time, it can be worth re-checking your assessment periodically. Confirm your county's specific rules on its assessment office website.
The Tax Appeal Pros help homeowners across the U.S. check whether their property assessment is fair and file a county appeal. Our editorial team reviews every guide for accuracy against how the appeal process actually works.
See if you're over-assessed — free
We check your assessed value against recent comparable sales before you pay anything.
Check my assessmentThis guide is general information, not legal or tax advice. Property tax rules, rates, and deadlines vary by jurisdiction and change over time — always confirm the specifics for your county on your own assessment notice or your county's official website.