Juniata County Property Tax Appeal — Deadline and How to File

a house on a hill covered in snow
Photo by Nellie Adamyan on Unsplash

The deadline

Filing deadline

August 1, or the next business day when it falls on a weekend or holiday

per the Juniata County Board of Assessment Appeals' Rules of the Board of Assessment Appeals, checked 2026-09-10 — source

Who hears it, and where it goes

Your appeal is decided by the Juniata County Board of Assessment Appeals.

Where to file

Juniata County Board of Assessment Appeals
Juniata County Courthouse, 1 N Main St
Mifflintown, PA 17059

The form: Statement of Intention of Appeal.

Filed by mail to the Juniata County Assessment & GIS Office, 1 N Main St, Mifflintown, PA 17059, by fax to (717) 470-3086, by email to [email protected], or in person, Monday to Friday, 8:00 AM to 4:30 PM.

A filing fee is due with the appeal.

An appeal received after the deadline is held for the following year, even if it was mailed on time.

per the Juniata County Board of Assessment Appeals' Rules of the Board of Assessment Appeals, checked 2026-09-10 — source

Nearby counties

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 7.4% of current market. Confirm the ratio on your notice (53 Pa.C.S. §8854).

Juniata 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 Juniata 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 Juniata 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 Juniata County?
The deadline is August 1, or the next business day when it falls on a weekend or holiday — per the Juniata County Board of Assessment Appeals' Rules of the Board of Assessment Appeals, checked 2026-09-10.
Who decides my appeal in Juniata County?
The Juniata County Board of Assessment Appeals.
Where do I send my appeal in Juniata County?
To the Juniata County Board of Assessment Appeals, Juniata County Courthouse, 1 N Main St, Mifflintown, PA 17059 — per the Juniata County Board of Assessment Appeals' Rules of the Board of Assessment Appeals, checked 2026-09-10. The form is the Statement of Intention of Appeal.

Property tax rules and deadlines vary by jurisdiction and can change — verify with your county before relying on this.

PROppeal is coming soon for Juniata 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].