Coming soon

Lehigh County Property Tax Appeal — Deadline and How to File

A street with cars parked on both sides of it
Photo by Jacob McGowin on Unsplash

The deadline

Filing deadline

August 1

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

Who hears it, and where it goes

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

Where to file

Lehigh County Office of Assessment
Government Center, Room 517
17 South Seventh Street
Allentown, PA 18101-2401

The form: Appeal Form for All Properties — one for each parcel.

Not accepted by fax.

A filing fee is due with the appeal.

The signed original must be received by the deadline; the Board does not accept a postmark as evidence of timely filing.

per the Lehigh County Office of Assessment's Assessment page, 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 46.95% of current market. Confirm the ratio on your notice (53 Pa.C.S. §8854).

Lehigh 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 Lehigh 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 Lehigh 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 Lehigh County?
The deadline is August 1 — per the Lehigh County Board of Assessment Appeals' Assessment page, checked 2026-09-10.
Who decides my appeal in Lehigh County?
The Lehigh County Board of Assessment Appeals.
Where do I send my appeal in Lehigh County?
To the Lehigh County Office of Assessment, Government Center, Room 517, 17 South Seventh Street, Allentown, PA 18101-2401 — per the Lehigh County Office of Assessment's Assessment page, checked 2026-09-10. The form is the Appeal Form for All Properties, one for each parcel.

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 Lehigh 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].