Philadelphia County Property Tax Appeal — Deadline and How to File
The deadline
Filing deadline
The first Monday in October
per the Board of Revision of Taxes' published appeal instructions, checked 2026-09-08 — source
Who hears it, and where it goes
Your appeal is decided by the Board of Revision of Taxes.
Where to file
Board of Revision of Taxes601 Walnut Street, Suite 325 East
Philadelphia, PA 19106
The form: Appeal Application.
Filed by mail, in person, Monday through Friday, 8:30 a.m. to 4:30 p.m., or by emailing the PDF form to [email protected].
The Board asks that you not send duplicates.
per the Board of Revision of Taxes' appeal rules, checked 2026-09-10 — source
Nearby counties
- Delaware County — Delaware County Board of Assessment Appeals
- Montgomery County — Montgomery County Board of Assessment Appeals
- Bucks County — Bucks County Board of Assessment Appeals
- Chester County — Chester County Board of Assessment Appeals
- Lehigh County — Lehigh County Board of Assessment Appeals
- Berks County — Berks County Board of Assessment Appeals
More: the county index and the Pennsylvania guide.
What your assessed value means here
Pennsylvania — assessed at a base-year value; the STEB Common Level Ratio for your county is about 94.34% of current market. Confirm the ratio on your notice (53 Pa.C.S. §8854).
Philadelphia County's common level ratio is drawn from the 2025 CLR (2024 sales data; effective 7/1/2026–6/30/2027) table — the same figure the app uses to compare your assessment to current market value.
Can the board raise your assessment?
Yes. The Board of Revision of Taxes can raise your assessment on your own appeal, not only lower it. That is the risk you take by filing, and it is why the case has to be worth making before you file it.
What a board actually weighs
The Board of Revision of Taxes decides what your property was worth on the valuation date, so recent comparable sales carry the case, not the size of the bill. The Pennsylvania guide covers the evidence.
Common questions
- When is the deadline to appeal my property assessment in Philadelphia County?
- The deadline is the first Monday in October — per the Board of Revision of Taxes' published appeal instructions, checked 2026-09-08.
- Who decides my appeal in Philadelphia County?
- The Board of Revision of Taxes.
- Where do I send my appeal in Philadelphia County?
- To the Board of Revision of Taxes, 601 Walnut Street, Suite 325 East, Philadelphia, PA 19106 — per the Board of Revision of Taxes' appeal rules, checked 2026-09-10. The form is the Appeal Application.
Sources
Property tax rules and deadlines vary by jurisdiction and can change — verify with your county before relying on this.
PROppeal is coming soon for Philadelphia County
When it launches, PROppeal will check your case against real, recent comparable sales and give you an honest verdict — then build the board-ready letter to file — $29.99, no percentage of your savings.
Want a heads-up when it’s live? Email [email protected].