How to Appeal Property Taxes in Philadelphia County, Pennsylvania (2026 Guide)

Direct answer: For Philadelphia County/City, the 2026 deadline to file a formal 2027 Real Estate Market Value Appeal is Monday, October 5, 2026—the “first Monday in October” rule applied to tax year 2027. File the Market value appeal form with the Board of Revision of Taxes (BRT) by email at appealinquiry@phila.gov, by mail, or in person at 601 Walnut Street, Suite 325 East, Philadelphia, PA 19106; the City’s instructions do not list an online portal or a filing fee.

How assessments work in Philadelphia County

Philadelphia is both the city and county for property tax purposes. The Office of Property Assessment (OPA) sets the dollar value; the Board of Revision of Taxes (BRT) hears formal assessment appeals. The Tax Review Board is not the place for principal real estate assessment appeals.

The current cycle is the Tax Year 2027 revaluation. OPA’s June 2026 methodology summary says it estimated more than 580,000 residential, commercial, industrial, and institutional properties by mass appraisal. The new assessment’s effective date is January 1, 2027, and 2027 real estate taxes are due March 31, 2027. OPA says the 2027 models used validated sales data from January 2020 through June 2025, so very recent 2026 market changes may not be fully reflected.

For a typical house, OPA looks at size, age, location, proximity to amenities, condition, and recent comparable sales. Your notice separates Total Market Value into Improvement Market Value and Land Market Value; assessment data on the 2027 notice reflects OPA records as of March 31, 2026, with ownership and Homestead information as of May 1, 2026.

Since Philadelphia assesses taxable property at 100% of market value, your assessment should roughly equal what the property would sell for in the relevant market—not what you can afford to pay.

Whether you should appeal

Appeal if you can prove one of three Philadelphia-specific grounds: overvaluation, non-uniformity compared with similar properties, or a substantial error in property characteristics such as square footage, condition, classification, or missing/incorrect exemption.

Start at property.phila.gov. Confirm your OPA account number, address, owner name, land/building split, building size, lot size, condition, and Homestead status. Then collect evidence:

• Recent sales of similar nearby homes, ideally before OPA’s June 2025 sales cutoff and close to your property’s size/condition.
• Photos showing deferred maintenance, exterior defects, damaged interiors, alley/traffic issues, or condition problems that OPA may not see.
• Appraisal or broker price opinion if the dollar difference is large enough to justify the cost.
• Uniformity evidence: nearby similar homes with materially lower assessed values.
• Correction evidence: permits, floor plans, inspection reports, or photographs if OPA has the wrong building area, condition, or use.

Do not rely on “my taxes went up too much” or “I can’t afford the bill.” OPA specifically says financial impact or rate of change alone is not enough for review.

There is also an informal OPA route: First Level Review (FLR). For TY2027, the FLR deadline is September 1, 2026. The FLR form comes with the mailed Notice of Proposed Valuation; if you lose it, call 215-686-9200. File FLR if you want OPA to reconsider, but do not wait for an FLR result if the BRT deadline is approaching. OPA says you may file both, and if BRT decides first, BRT’s decision supersedes OPA.

Published success rates or median reductions: I found no official 2026 City/BRT publication giving homeowner appeal win rates or median assessment reductions, so do not trust marketing claims that quote Philadelphia success statistics without a source.

Step-by-step how to file

1. Get the correct form. For a market value appeal, use the “Market value appeal form” for Real Estate Market Value Appeal for Tax Year 2027. The form says it is due by October 5, 2026 and that you must use a separate form for each OPA account.

Other official BRT forms worth knowing:

• Appraisal summary cover sheet / BRT Value Summary Cover Sheet — used to provide appraisal information, especially for non-residential parcels.
• Power of attorney form / Appeals Appointment of Authorized Representative — required if someone files or appears for you.
• Denied abatement or exemption appeal form — for denied abatement, nonprofit exemption, Homestead Exemption, or veterans exemption decisions.
• Late filing – market value appeal form (nunc pro tunc) — only for an untimely appeal; the late petition must show extraordinary circumstances such as fraud, duress, coercion, or qualifying official negligence.

2. Choose oral or non-oral. The 2027 form asks you to select one:

• Oral hearing: you attend a public BRT hearing in person or remotely. If you do not appear, the appeal is abandoned.
• Non-oral appeal: no public hearing; the Board decides from your written documentation.

3. State your opinion of value. Do not simply write “too high.” Put the market value you believe is correct and briefly explain why: comparable sales, wrong condition, wrong square footage, non-uniform assessment, or missing exemption.

4. Attach evidence. For an owner-occupied home, include clear photos—front, rear, side, street context—and any documents that support your value. For income-producing property under the appraisal threshold, the BRT form requires current leases plus two years of income and expense statements. For TY2027, properties with a city-certified market value of $1,500,000 or more must submit three hard copies and one electronic copy of a qualifying appraisal with an effective date of January 1, 2027, at least 45 days before the scheduled hearing.

5. File once—no duplicates. Filing methods listed by BRT are:

• Email: appealinquiry@phila.gov
• Mail: Board of Revision of Taxes, 601 Walnut Street, Suite 325 East, Philadelphia, PA 19106
• In person: same address, Monday–Friday, 8:30 a.m.–4:30 p.m.
• Portal: no BRT online appeal portal is listed in the 2027 form or BRT rules.
• Fax: do not fax.
• Fee: no filing fee is listed in the official BRT instructions.

What happens after

If you request an oral hearing, BRT will send written notice of the hearing date, time, and location about 45 to 90 days in advance. Hearings may be remote or in person; BRT event notices tell scheduled appellants to log in at the scheduled time, wait in the Zoom waiting room, and clearly identify their name and appeal address. If you need a translator, BRT event notices say to call 215-686-4343 at least five days in advance.

At the hearing, you or your representative explain your basis for appeal and present evidence. The Board is not bound by strict courtroom evidence rules and may consider relevant, helpful evidence. Board members may question you or your witnesses and may ask for additional documents. For non-oral appeals, assume your packet is your entire case—make it organized and self-explanatory.

The official materials are specific about the 45–90 day hearing notice but do not promise a fixed number of days for the final market-value decision after the hearing. Watch your mail and property record. If taxes are already due, pay what is billed or confirm with Revenue how to avoid delinquency while the appeal is pending.

Local tips

Check Homestead before appealing. Philadelphia’s Homestead Exemption reduces the taxable assessed value of an owner-occupied primary residence by $100,000, saving most homeowners up to about $1,399 per year at the current tax rate. The final annual Homestead application deadline is December 1, but early filers should apply by October 1 to see it on the first bill. You generally cannot have Homestead and a 10-year residential abatement or LOOP at the same time.

Consider LOOP if your value jumped. The Longtime Owner Occupants Program (LOOP) may help if your assessment increased at least 50% over last year or 75% over five years, and you meet income, ownership, residency, and tax-status requirements. The 2026 LOOP application deadline is September 30, 2026. LOOP and Homestead are mutually exclusive, so use the City calculator before choosing.

Do the tax math before spending on an appraisal. Philadelphia’s Real Estate Tax rate is 1.3998% of assessed value. Example: suppose OPA assessed your owner-occupied rowhome at $420,000, and you believe good comparable sales support $370,000. With Homestead, the taxable value would be $320,000 before appeal versus $270,000 after appeal. A $50,000 reduction saves $50,000 × 0.013998 = $699.90 per year. If a private appraisal costs $500–$700, that may be worth it for a strong case; if your realistic reduction is only $10,000, the annual savings is about $139.98.

New owner exception. If a property is conveyed after the first Monday in October and before December 31 of the year before the tax year, the new owner generally has 30 calendar days after the deed date to appeal. A late-dated assessment notice or qualifying agreement of sale can also create a 30-day window, but do not rely on this unless the facts fit BRT’s rule exactly.