Pennsylvania Property Assessment Appeal Guide

What a Pennsylvania assessment appeal is

A property assessment appeal asks the local assessment appeal board to review the assessment assigned to a property.

The assessment is not always the same as the price you could sell the home for today. Pennsylvania counties may use a base-year system, an established ratio, or a common level ratio. These terms can feel confusing, but the main idea is simple: the county record creates an assessed value, and that assessed value is used with local millage rates to calculate property taxes.

An appeal may make sense when the county record appears wrong or when the assessed value does not line up with the fair market value and the county’s assessment rules.

What an appeal can fix, and what it cannot fix

Who handles the appeal

Most homeowners deal with a county assessment office and a county board of assessment appeals. The exact name changes by county.

In Philadelphia, formal market value appeals go to the Board of Revision of Taxes. Philadelphia also has a First Level Review process through the Office of Property Assessment, but a First Level Review is not the same as protecting a formal appeal deadline.

In Allegheny County, annual appeals go through the county’s annual appeals process and are heard by the Board of Property Assessment Appeals and Review.

Other counties may use names such as Board of Assessment Appeals, Board of Assessment and Revision of Taxes, or Board of Property Assessment Appeals. The safest search is your county name plus “assessment appeal.”

Step 1: Pull your county property record

Before filing, look up your property record on the county assessment website. Print or save it.

Check the facts that affect value: parcel number, land size, building size, finished living area, year built, condition, property class, outbuildings, and exemptions or exclusions already shown on the account.

If the county record says you have a finished basement when it is unfinished, or a larger home than you actually have, that error matters. Gather proof before the hearing. Photos, contractor documents, floor plans, permits, inspection reports, and a simple written explanation can help.

Step 2: Decide the reason for the appeal

A strong appeal is not just “my taxes are too high.” It explains why the assessment is wrong.

Philadelphia’s official appeal guidance says assessment appeals should prove at least one of these points: the estimated market value is too high or too low, the value is not uniform with similar surrounding properties, or the property characteristics are substantially incorrect. Those are useful categories even outside Philadelphia because they match how many county boards think about value evidence.

Wrong property facts

This is often the clearest appeal issue. The county may have the wrong square footage, wrong building description, wrong condition, or wrong land information. Keep the argument factual. Show the county record, show the correction, and show proof.

Market value appears wrong

If you believe the county’s implied market value is too high, compare it with recent sales of similar homes. Good comparable sales are nearby, recent, similar in size, similar in condition, and similar in use. A large renovated home across town may not help you appeal a small older home on a different kind of lot.

Uniformity problem

Uniformity means similar properties should not be assessed in a way that treats one owner unfairly compared with others. This can be more technical than a simple property-record mistake. If you rely on uniformity, bring clear examples and be ready to explain why the properties are truly comparable.

Step 3: Find the right deadline for your county and notice

There are several deadline patterns in Pennsylvania.

Do not assume a postmark, email, portal upload, or hand delivery is treated the same in every county. Read the county’s instructions before the last day.

Step 4: Get the county form and file it correctly

Most counties require a written appeal. The form may ask for the owner, parcel number, property location, the assessment being appealed, and the mailing address for hearing notices. Pennsylvania’s county assessment law lists similar information for written appeals.

Before submitting, check:

• the exact tax year you are appealing;
• whether the appeal is annual, interim, reassessment, exemption-related, or another type;
• whether there is a filing fee;
• whether the county accepts online filing, email, mail, or in-person filing;
• whether the county rejects faxed appeals;
• whether supporting documents must be submitted with the form or later;
• whether an agent, family member, or attorney needs an authorization form;
• whether multiple copies are required for the hearing.

Keep proof of filing. Save the confirmation page, email receipt, certified mail receipt, stamped copy, or other proof that shows what you filed and when.

Step 5: Build evidence that speaks to value

The board usually wants evidence about the property and its value. It does not usually decide based on stress, income, medical bills, or how difficult the tax bill feels.

Useful evidence may include:

• photos showing damage, condition, layout, view, access, slope, flooding, or other value issues;
• a copy of the county property record with mistakes marked;
• recent comparable sales with addresses, dates, sale prices, and reasons they are similar;
• a recent appraisal from a Pennsylvania-certified appraiser, if you have one;
• repair estimates for major condition problems;
• permits or inspection records;
• surveys, plats, or maps if land size or usable land is disputed;
• leases, rent rolls, income and expense statements, or operating records for rental or commercial property when required by county rules.

County rules vary. For example, Indiana County’s appeal rules describe appraisals, income and expense documents, comparable properties, expert witness reports, and hearing evidence. Philadelphia’s BRT rules list different evidence expectations depending on whether the property is owner-occupied residential, commercial, industrial, leased, mixed-use, or represented by an expert.

Step 6: Understand common level ratio before you argue numbers

Pennsylvania assessment math can look strange because a county’s assessed value may be a percentage of market value, not the full current market value.

The State Tax Equalization Board, through Pennsylvania’s Department of Community and Economic Development, annually establishes a Common Level Ratio for each county. The DCED STEB/TED page explains that the common level ratio compares assessed value to current market value using sales ratio studies.

In appeals, the board may first decide fair market value and then apply the proper ratio. York County’s assessment appeal page gives a plain example: if the board establishes market value and applies the county’s common level ratio, the result becomes the assessment. That example is county-specific, but the concept is useful statewide.

Because ratios and base-year systems vary, do not simply compare your assessment to a real estate website estimate. Ask: What market value does my assessment imply under my county’s current ratio? Is that market value supported by real sales and property facts?

Step 7: Remember that millage is separate from assessment

Your tax bill is affected by two big things: assessed value and millage rates.

The assessment is the value figure in the tax system. Millage is the tax rate set by local taxing bodies, such as the county, municipality, and school district. York County’s millage rate page explains that one mill equals 1/1,000 of a dollar and shows the basic calculation: convert mills to a decimal and multiply by the assessed value. Somerset County gives the same basic idea on its property tax calculator page.

An assessment appeal may change the assessed value if you win. It does not change the millage rates. If taxes rose because the school district, county, or municipality raised rates, an assessment appeal may not solve that problem unless the assessment itself is also wrong.

Step 8: Prepare for the hearing

After a timely appeal is filed, the board will schedule a hearing and send notice. Pennsylvania law says the board notifies the appellant, property owner, and affected taxing districts of the time and place of the hearing. In many county appeals, affected taxing districts, such as school districts, may also participate.

At the hearing, stay focused. A simple structure helps:

• State what you believe the fair market value should be.
• Explain the evidence supporting that value.
• Point out property-record errors clearly.
• Use comparable sales only if they are truly similar.
• Bring extra copies if your county requires them.
• Do not spend the hearing arguing that taxes are unaffordable unless the board specifically asks about hardship. Most boards are deciding value.

Some boards allow remote hearings. Some require in-person attendance. Some allow waiver of oral hearing in specific situations. Follow your county’s hearing notice closely.

What happens after the board decides

The county board will issue a decision. If the assessment changes, the county assessment office updates the roll according to the decision and local timing rules.

If you disagree with the board decision, Pennsylvania law allows an appeal to the Court of Common Pleas in the county where the property is located. The law says this follows an appeal to the board and must comply with court rules. It also says the board decision notice must state that the decision may be appealed to the Court of Common Pleas within 30 days of the mailing date of the decision. The court appeal rules are in 53 Pa.C.S. § 8854.

A court appeal is more formal than a county board hearing. If you are thinking about going to court, consider getting legal help quickly. The clock is short.

If you are late

Call the county assessment office or appeal board right away. Ask what late-filing options exist, if any, and ask where the written rule or form is posted.

Do not assume a late appeal will be accepted. County rules can be strict. Allegheny County says missed annual appeals may be allowed only under limited circumstances and requires a late-filed appeal request. Philadelphia posts late filing forms for certain late market value appeals, but that does not mean every late filing will be granted.

If the problem is that you never received a notice, received it very late, were hospitalized, or faced another serious issue, keep documents that prove the dates and facts. The official office or the court may need more than a phone explanation.

If you are denied

Read the decision notice carefully. Look for:

• the mailing date of the decision;
• the assessment value decided by the board;
• whether the decision applies to the current year or next tax year;
• court appeal instructions;
• the 30-day court appeal warning, if shown;
• instructions about notifying taxing districts;
• whether taxes must still be paid while an appeal continues.

Pennsylvania law says an appeal does not stop the collection of taxes based on the assessment being appealed. If the assessment is later reduced, the law provides for return of overpayment with interest under the statute. If you cannot pay a bill while an appeal is pending, contact the tax collector or treasurer quickly and ask about payment options. Do not ignore delinquent notices.

If the property was reassessed

A countywide reassessment can make many homeowners anxious because the new number may look very different from the old one. That does not always mean the tax bill will rise by the same percentage. Local millage rates may change after a reassessment, and different taxing bodies set their own rates.

During a countywide reassessment, Pennsylvania law provides for mailed notices and a 40-day appeal right after the mailing date stated on the notice. Some counties also offer an informal review before the final roll. The informal review may help correct factual mistakes, but the formal appeal deadline is still the date to protect.

If you receive a reassessment notice, do these four things the same day if possible:

• write down the notice date and appeal deadline;
• check the property record for errors;
• look up the county’s reassessment appeal form;
• start gathering comparable sales or property-condition proof.

Documents to gather before filing or hearing

You may not need every document below. Use the ones that match your issue and your county’s rules.

• assessment or reassessment notice;
• current tax bill and county property record card;
• photos, measurements, floor plans, permits, or repair estimates;
• appraisal or recent comparable sales list, if available;
• lease, rent roll, and income/expense statements for rental or income property if required;
• agent authorization or power of attorney if someone else will file or appear for you.