Allegheny County Property Tax Appeal Guide
If you own property in Allegheny County, Pennsylvania, you may be paying more in property taxes than you legally owe. Many homeowners don't realize their assessment may be based on outdated market values, leading to an unfair tax burden.
Understanding Property Assessments in Allegheny County
Allegheny County reassesses properties periodically, but market values can change significantly between assessments. The county uses the Common Level Ratio (CLR) to determine the assessed value that should be used for taxation purposes. For 2026, Pennsylvania's official CLR is 49.3%, meaning your property should be assessed at 49.3% of its fair market value.
How to Know If Your Assessment Is Too High
A simple way to check is to compare your assessed value to recent sales of similar properties in your neighborhood. If comparable homes are selling for significantly less than what would justify your current assessment under the CLR, you may have a strong case for an appeal.
Our free calculator can instantly estimate whether your assessment appears high based on the current Common Level Ratio and county data.
The Appeal Process
Allegheny County property tax appeals are handled by the Board of Property Assessment Appeals and Review (BPAAR). The process typically involves:
- Gathering evidence (recent comparable sales)
- Filing an appeal form
- Presenting your case to the board
- Waiting for a decision
You can file your appeal online or by mail, and you don't need a lawyer for the initial hearing.
What You Need to File
To build a strong appeal, you'll need:
- Your property's current assessment notice
- Sales data for 3-5 comparable properties in your area
- Photos of your property showing any issues affecting value
- A completed appeal form
Common Mistakes to Avoid
Many appeals are denied because homeowners:
- Miss the filing deadline
- Use incompatible comparable properties
- Don't adjust for differences between properties
- Focus on tax rate instead of assessment value
Our sample report shows exactly what a strong appeal packet looks like.
Get Started
The first step is to check if your assessment appears high. Use our free tool to get an instant estimate, then decide if filing an appeal is worthwhile for your situation.