Dauphin County Property Tax Appeal — Deadline and How to File
The deadline
Filing deadline
August 1
per the Dauphin County Board of Assessment Appeals' Rules of Appeal Procedure, checked 2026-09-10 — source
Who hears it, and where it goes
Your appeal is decided by the Dauphin County Board of Assessment Appeals.
Where to file
Dauphin County Board of Assessment AppealsPO Box 1295
Harrisburg, PA 17108-1295
The form: Residential/Vacant Lot Appeal Form.
Filed by mail or in person at the Administration Building, 2 South 2nd Street, 2nd Floor, Harrisburg, weekdays 8:00 a.m. to 4:30 p.m..
A filing fee is due with the appeal.
The appeal must be received by the deadline; one mailed in time that arrives late is rejected.
per the Dauphin County Board of Assessment Appeals' Board of Assessment Appeals page, checked 2026-09-10 — source
Nearby counties
- Lebanon County — Lebanon County Board of Assessment Revision
- Perry County — Perry County Board of Assessment Appeals
- Northumberland County — Northumberland County Board of Assessment Revision
- Cumberland County — Cumberland County Board of Assessment Appeals
- York County — York County Board of Assessment Appeals
- Schuylkill County — Schuylkill 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 38.31% of current market. Confirm the ratio on your notice (53 Pa.C.S. §8854).
Dauphin 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 Dauphin County Board of Assessment Appeals 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 Dauphin County Board of Assessment Appeals 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 Dauphin County?
- The deadline is August 1 — per the Dauphin County Board of Assessment Appeals' Rules of Appeal Procedure, checked 2026-09-10.
- Who decides my appeal in Dauphin County?
- The Dauphin County Board of Assessment Appeals.
- Where do I send my appeal in Dauphin County?
- To the Dauphin County Board of Assessment Appeals, PO Box 1295, Harrisburg, PA 17108-1295 — per the Dauphin County Board of Assessment Appeals' Board of Assessment Appeals page, checked 2026-09-10. The form is the Residential/Vacant Lot Appeal Form.
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 Dauphin 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].