A countywide reassessment was ordered.
The County must replace values based on 2012.
Allegheny County property reassessment
Property reassessment: What Allegheny County homeowners need to know
Allegheny County has been ordered to conduct a countywide reassessment. Here is what residents should know now, what remains undecided and where to find reliable updates.
Last updated August 18, 2026
Read PublicSource’s order summary (opens in a new tab)The short version
Three facts worth keeping straight.
Assessed values will change.
Those values help set each property’s share of local taxes.
Bills will not all move the same way.
They may rise, fall or stay similar, depending on value changes, tax rates and relief.
Known, unknown, next
What the order means—and does not mean.
On August 17, 2026, Judge Kenneth G. Valasek ordered Allegheny County to conduct a countywide reassessment replacing its 2012 base values. The process must be materially underway by July 1, 2027, and completed by June 30, 2032.
Confirmed
What the order means
- A reassessment is required.Allegheny County must replace its 2012 base values. The process must be materially underway by July 1, 2027, and finished by June 30, 2032.
- No assessment or tax bill changes today.The order begins a multiyear process. It does not change anyone’s current assessment or tax bill.
- Annual appeals remain separate.A current annual appeal is not the same process as the future countywide reassessment.
Still unresolved
What is not decided
- Individual property values.The order does not assign a new value to any property. The County still must carry out the reassessment.
- Individual tax bills.A bill may rise, fall or remain similar. The result depends on relative value changes, tax rates and any relief that applies.
- The detailed process.Key details about data collection, valuation and public communication are still to come.
Future decisions
What comes next
- Tax rates.The County, municipalities and school districts set their own tax rates. Those later decisions will affect final bills.
- Relief programs.Existing relief may apply to some homeowners. Any new or expanded relief would require separate public decisions.
- A recurring schedule.The order does not establish a schedule after this reassessment. County officials support regular future reassessments, but the timetable remains unresolved.
ConfirmedWhat the order means
- A reassessment is required.Allegheny County must replace its 2012 base values. The process must be materially underway by July 1, 2027, and finished by June 30, 2032.
- No assessment or tax bill changes today.The order begins a multiyear process. It does not change anyone’s current assessment or tax bill.
- Annual appeals remain separate.A current annual appeal is not the same process as the future countywide reassessment.
Still unresolvedWhat is not decided
- Individual property values.The order does not assign a new value to any property. The County still must carry out the reassessment.
- Individual tax bills.A bill may rise, fall or remain similar. The result depends on relative value changes, tax rates and any relief that applies.
- The detailed process.Key details about data collection, valuation and public communication are still to come.
Future decisionsWhat comes next
- Tax rates.The County, municipalities and school districts set their own tax rates. Those later decisions will affect final bills.
- Relief programs.Existing relief may apply to some homeowners. Any new or expanded relief would require separate public decisions.
- A recurring schedule.The order does not establish a schedule after this reassessment. County officials support regular future reassessments, but the timetable remains unresolved.
Sources
Show the work
Questions homeowners deserve answered.
- 01What problem is being solved?
- 02What will it cost?
- 03Who pays?
- 04Who benefits?
- 05How will residents know it worked?
What homeowners can do now.
Check your property record
Review the assessment and property details currently on file.
Open the property search (opens in a new tab)Understand annual appeals
Annual appeals are separate. Check the current filing window and instructions.
Read the appeal guidance (opens in a new tab)Review available tax relief
See current exemptions, eligibility information and applications.
See relief resources (opens in a new tab)Follow official County updates
Use the County hub for forms, office contacts and future notices.
Visit the County hub (opens in a new tab)General information only; not individual tax or legal advice.
Keep the conversation going.
Follow Thomas for video, short explanations and the public conversation as reassessment moves forward.
A listen-first approach.
Thomas West is a Pennsylvania native, small-business owner and former news producer. He listens first and verifies the facts.
Meet Thomas