How do I appeal my Allegheny County property tax assessment?
To appeal your Allegheny County property tax assessment for the 2027 tax year, file with the Board of Property Assessment Appeals and Review (BPAAR) between July 1 and September 2, 2026. Filing is free. The 2026 Common Level Ratio (CLR), set by the Pennsylvania State Tax Equalization Board, is 50.14% — meaning your assessed value should equal approximately half of your home's current fair market value. If your current assessment is higher than that threshold, you may be overpaying every year, and a successful appeal commonly reduces property taxes by 10–30%.
If you own a home in Allegheny County and haven't heard the phrase “Common Level Ratio” before, you need to read this.
The 2026 CLR for Allegheny County is 50.14%. That number, set annually by the Pennsylvania State Tax Equalization Board, determines what your property should be assessed at relative to its current market value. And because Allegheny County hasn't done a countywide reassessment since 2012 — meaning most property values are frozen at 14-year-old figures — there's a significant chance your assessment no longer reflects reality.
The filing window to challenge your assessment for the 2027 tax year opens July 1, 2026 and closes September 2, 2026. That's less than two months from now.
Here’s everything you need to know to figure out if you're over-assessed — and what to do about it.
How the Common Level Ratio Works in Allegheny County
Pennsylvania doesn't require counties to reassess properties at current market value every year. What it does require is a mechanism to adjust for the gap between assessed values and actual market values — and that mechanism is the CLR.
The formula is straightforward:
Current Market Value × CLR = Target Assessment
With a 2026 CLR of 50.14%, a home worth $350,000 on the open market today should be assessed at roughly $175,490. If your current assessment is $220,000, you're over-assessed — and you're paying taxes on $44,510 of value that shouldn't be taxed at all.
To find your current assessed value, search the Allegheny County Real Estate Portal at alleghenypa.gov. Your property record shows the current assessed value. Compare it to the formula above using your best estimate of today's market value. Pittsburgh home values have shifted meaningfully over the past few years — knowing where your specific property sits today is the first step.
One important nuance: the 2012 base year means your assessment reflects what the county believed your property was worth in 2012, not what you paid for it, and not what it's worth now. That gap is exactly what a CLR-based appeal addresses.
Who Is Most Likely Over-Assessed?
Not every Allegheny County homeowner is over-assessed, but three groups should absolutely run the calculation:
Recent buyers (2021–2024). If you purchased during the Pittsburgh market's appreciation run, here's a counterintuitive reality: buying at current market prices can actually trigger a higher assessment. When a property sells, the county's taxing bodies — including the school district and municipality — can use your purchase price as evidence that your home's value is higher than the current assessment suggests. They can file what's called a “reverse appeal” to push your assessment upward. If this happened to you after closing, your assessment may now be significantly above the CLR threshold — meaning you're paying taxes on more than you should be.
Long-time homeowners whose market value has risen substantially since 2012. The Pittsburgh area has appreciated meaningfully since the 2012 base year. If your home was assessed at a number that now exceeds 50.14% of current market value, you're in the same position — over-assessed, overpaying.
Properties with condition issues or deferred maintenance. Assessments don't account for the actual state of your property. If your roof is aging, your HVAC is due for replacement, or there are structural issues that would affect a buyer's offer price, those reduce your home's real market value — which may mean your assessment should be lower than the formula alone suggests.
The quick check: pull your assessed value from the county's records and multiply your estimated current market value by 0.5014. If your current assessment is higher than that result, you have a reasonable case to file.
The Filing Process — Step by Step
The good news: filing a property tax assessment appeal in Allegheny County is free and accessible. You don't need an attorney to get started, and the process is more straightforward than most homeowners expect.
Step 1: Confirm your numbers. Look up your current assessed value. Estimate your home's current fair market value — either through a professional appraisal or a detailed CMA from a local agent who knows your neighborhood's recent sales. Multiply your market value by 0.5014. If the result is lower than your current assessment, you have grounds to file.
Step 2: Gather your evidence. The BPAAR hearing officer will want to see current fair market value evidence. The strongest options are a licensed appraisal and recent comparable sales — meaning actual closed sale prices of similar homes nearby, not assessed values. If your property has condition problems that affect its market value, condition photos and repair estimates are also useful. Avoid bringing in assessed values of other properties; that's irrelevant to your case.
Step 3: File online. The Allegheny County Real Estate Portal allows you to submit your appeal electronically. The window opens July 1 and closes September 2, 2026. File early — hearings are scheduled on a rolling basis, and early filers often get earlier hearing dates.
Step 4: Attend your hearing. Hearings are conducted by phone and typically run about 10 minutes. A hearing officer — usually a licensed real estate professional or attorney — reviews your evidence and produces a recommendation that goes before the full BPAAR board for a vote. Submit all your evidence to the county at least 10 days before your scheduled hearing date.
Step 5: Receive your decision. BPAAR decisions typically arrive three to six months after the hearing. If the board agrees your home is over-assessed, your new assessment takes effect for the 2027 tax year and carries forward — meaning you'll see savings every year going forward, not just once.
If you're not satisfied with the BPAAR decision, you have 30 days from the mailing date to escalate to the Board of Viewers — the next level of appeal.
Do You Need a Lawyer?
Not necessarily. Many Allegheny County homeowners file successfully on their own, particularly when they have clear recent comparable sales to support their case.
That said, Pittsburgh-area attorneys who specialize in assessment appeals typically work on contingency — meaning they charge a fee (usually one-third of two years' worth of tax savings) only if your appeal results in a reduction. If your appeal doesn't succeed, you owe nothing. For homeowners with complex situations — unusual properties, large potential savings, or properties already facing a reverse appeal from the taxing bodies — working with an attorney can be worth it.
The most important thing either way is the quality of your market value evidence. A professional appraisal is the gold standard. A detailed, agent-run CMA using recent closed sales in your specific Pittsburgh neighborhood gives you a solid foundation — and it's where most homeowners start when they're evaluating whether to file.
Every home is different. The only way to know whether your specific property is over-assessed, and by how much, is to compare what the market actually says your home is worth today against what the county says it should be taxed on. That comparison is where the real answer lives.
Frequently Asked Questions
What is the Common Level Ratio (CLR) in Allegheny County for 2026?
The 2026 Allegheny County Common Level Ratio (CLR) is 50.14%, as set by the Pennsylvania State Tax Equalization Board (STEB). This means your property's assessed value should equal approximately 50.14% of its current fair market value. If your assessment is higher than that threshold — after multiplying your home's actual market value by 0.5014 — you may have grounds to file a successful appeal with BPAAR.
Can I appeal my property taxes if I recently bought my home in Allegheny County?
Yes — and recent buyers are often the ones most at risk of being over-assessed. When a property sells, Allegheny County taxing bodies can use the purchase price as evidence of market value and seek an upward assessment adjustment. If your home was assessed before your purchase at a value that now exceeds the CLR calculation, you can file your own appeal. The filing window for the 2027 tax year runs July 1 through September 2, 2026.
How much can I save by appealing my Allegheny County property tax assessment?
Property owners who successfully appeal commonly see reductions of 10–30% or more in their assessed value, according to tax appeal attorneys in the Pittsburgh area. The actual savings depend on how over-assessed your property is and the current millage rates in your municipality and school district. Because a reduced assessment carries forward across multiple tax years, the total savings over time can be significant.
Do I need a lawyer to file a property tax appeal in Allegheny County?
No. Filing with the Board of Property Assessment Appeals and Review (BPAAR) is free and does not require an attorney. Many homeowners file successfully on their own using recent comparable sales as evidence. Pittsburgh-area real estate attorneys who specialize in assessment appeals often work on contingency — meaning they charge a fee (typically one-third of two years' worth of tax savings) only if your appeal succeeds, so there's no out-of-pocket risk.
What happens if Allegheny County files an appeal against my assessment?
Taxing bodies — including the county, municipality, and school district — also have the right to appeal assessments they believe are too low. This is called a reverse appeal, and it's most likely to occur when a property recently sold at a price significantly higher than what the current assessment implies. If you receive notice of a reverse appeal, you'll have the opportunity to present evidence defending your current assessed value at a BPAAR hearing.
Deadline Reminder
The filing window opens July 1, 2026. You have until September 2, 2026 to submit your appeal for the 2027 tax year.
The first number you need is your home's actual current market value — not a Zestimate, not your assessed value, not what you paid for it three years ago. You need what a real buyer would pay for your home today, in your specific Pittsburgh neighborhood, in its current condition.
That’s exactly what a personalized home valuation from the Mike Pastor Group gives you. We’ll run a detailed analysis using real recent sales in your neighborhood — the same data that holds up in a BPAAR hearing — and give you a clear picture of where your home stands in today’s market.
Get started at pittsburghhometeam.com/seller/homeestimate/default.
By Mike Pastor - Realtor & Team Lead of The Mike Pastor Group at Realty One Group Landmark | May 6, 2026
About Mike Pastor
Mike Pastor leads the Mike Pastor Group at Realty One Group Landmark, helping Pittsburgh-area sellers and buyers navigate the market across Allegheny, Westmoreland, Washington, Armstrong, Indiana, and Butler counties. With a team of 10+ agents and hundreds of transactions across neighborhoods like Fox Chapel, Squirrel Hill, Cranberry, Murrysville, Upper St. Clair, Allison Park, Plum Boro, Lawrenceville, and Highland Park, Mike combines deep local knowledge with a no-nonsense approach to pricing, prep, and negotiation. Connect with the team at pittsburghhometeam.com.