Cumberland County Property Tax Appeal — Deadline and How to File
The deadline
Filing deadline
September 1
per the Cumberland County Board of Assessment Appeals' Property Assessment page, checked 2026-09-10 — source
Who hears it, and where it goes
Your appeal is decided by the Cumberland County Board of Assessment Appeals.
Where to file
Cumberland County Board of Assessment Appeals1 Courthouse Square, Room 107
Carlisle, PA 17013
The form: Residential or Land Appeal Form.
Filed by mail or in person at the Assessment Office, Room 104, 8 a.m. to 4:30 p.m..
A filing fee is due with the appeal.
A mailed form must be received in the Assessment Office by the deadline.
per the Cumberland County Board of Assessment Appeals' Property Appeal Information page, checked 2026-09-10 — source
Nearby counties
- Perry County — Perry County Board of Assessment Appeals
- Adams County — Adams County Board of Assessment Appeals
- Franklin County — Franklin County Board of Assessment Appeals
- Dauphin County — Dauphin County Board of Assessment Appeals
- York County — York County Board of Assessment Appeals
- Juniata County — Juniata 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 64.1% of current market. Confirm the ratio on your notice (53 Pa.C.S. §8854).
Cumberland 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 Cumberland 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 Cumberland 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 Cumberland County?
- The deadline is September 1 — per the Cumberland County Board of Assessment Appeals' Property Assessment page, checked 2026-09-10.
- Who decides my appeal in Cumberland County?
- The Cumberland County Board of Assessment Appeals.
- Where do I send my appeal in Cumberland County?
- To the Cumberland County Board of Assessment Appeals, 1 Courthouse Square, Room 107, Carlisle, PA 17013 — per the Cumberland County Board of Assessment Appeals' Property Appeal Information page, checked 2026-09-10. The form is the Residential or Land 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 Cumberland 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].