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Why Homeowners Choose Ownwell
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Keep more of your savings with our low 35% fee. Many local firms charge more.
Pennsylvania-Specific Expertise & Tech
Allegheny County still assesses to a 2012 base year. Philadelphia revalues every parcel at full market value. These require two different arguments, and we build the right one for your property.
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How Pennsylvania Property Taxes Work
Pennsylvania levies no state property tax. Three separate local bodies tax the same parcel: your county, your municipality, and your school district. The school district is almost always the largest share of the bill. Because each sets its own rate, two homes with identical assessments in the same county can carry very different bills.
Assessment happens at the county level, and this is where Pennsylvania gets unusual.
- There is no state law requiring counties to reassess on any schedule.
- Each of the 67 counties freezes its values to a "base year" of its own choosing, and many have not moved it in decades.
- Allegheny County is still assessing to 2012. Philadelphia is one of the few counties that revalues regularly.
The Common Level Ratio, briefly
Because base-year assessments drift away from real market values, the State Tax Equalization Board publishes a Common Level Ratio (CLR) for every county each July.
Multiply your home's current market value by your county's CLR, and you get what your assessment should be. If your actual assessment is higher than that number, you're likely over-assessed, and you have a case.
- In Allegheny County, the CLR has fallen every year since the last reassessment, which means the gap keeps widening in homeowners' favor.
- In Philadelphia, the ratio sits near 1:1, so the argument is simply that the county's market value is wrong.
Allegheny
2012
49.3%
Philadelphia
Annual (full market value)
94.3%
Source: PA Department of Revenue, Common Level Ratio Real Estate Valuation Factors, effective July 1, 2026 β June 30, 2027.
Want the full breakdown? Read our Pennsylvania Property Taxes 101 guide for base years and CLRs across all seven of the state's largest counties, worked math examples, and the complete relief-program list.
Your Pennsylvania Property Tax Appeal Timeline
Allegheny County and Philadelphia run on separate calendars and separate processes. Find your county below.
Allegheny County Tax Year 2027 (Open Now)
Allegheny moved its appeals into the year before the tax year, so the window that is open right now decides your 2027 bill.
- Now
See how much you could save and sign up for Ownwell to appeal on your behalf
We combine real-time market data, local expertise, and technology to estimate your potential savings before we file. View your savings estimate for free (no contact info required)! - July 1, 2026
The tax year 2027 appeal window opens
Allegheny has not reassessed since 2012, so there is no annual notice of valuation to wait for. Your 2012-era value simply carries forward until you challenge it. - By September 1, 2026
Appeal filing deadline
This is a hard deadline. Ownwell files your appeal with the Office of Property Assessments, with comparable sales evidence and the current Common Level Ratio applied to your property. There is no filing fee in Allegheny County.Allegheny's tax year 2027 window closes Tuesday, September 1, 2026.
- After filing
Hearing before the Board of Property Assessment Appeals and Review (BPAAR)
The county provides at least 21 days' notice for residential hearings, and hearings are commonly conducted by telephone. Ownwell presents your evidence. You do not need to attend or take time off work. - Results
Your assessed value is lowered
Because Allegheny has no scheduled reassessment, a reduction won on appeal carries forward until the county changes your value or reassesses countywide. The savings repeat every year you stay in the home. - If further appeal is warranted
Court of Common Pleas
If the BPAAR decision does not reflect fair value, an appeal to the Court of Common Pleas is available within 30 days, and from there to the Commonwealth Court. Ownwell evaluates each case and advises on next steps.
Philadelphia Tax Year 2027
Philadelphia values every property at 100% of market value and revalues on a regular cycle, so your argument is simply that the City's number is wrong.
- Now
Sign up and authorize Ownwell to appeal on your behalf
Check your assessment for free at property.phila.gov, then see what Ownwell estimates you could save. - Mailed starting June 29, 2026
The Office of Property Assessment mails Notices of Valuation
The City revalued more than 580,000 properties for tax year 2027 using computer-assisted mass appraisal, aerial and street-level imagery, and market data. The City estimates the median residential bill change at roughly $97 β but mass appraisal creates parcel-by-parcel winners and losers, so a modest citywide median can conceal a large swing on your specific property. - By September 1, 2026
First Level Review deadline (informal)
A First Level Review is an informal desk review by OPA. The application arrives with your Notice of Valuation. - By October 5, 2026
Formal appeal deadline β Board of Revision of Taxes (BRT)
The BRT is an independent body, and this is the track that carries real hearing rights. Important: filing a First Level Review does not preserve your BRT rights. The two tracks are separate, and you can pursue both. Ownwell files whichever combination gives your property the best chance. - By December 1, 2026
Homestead Exemption applications due, and tax bills begin mailing
Philadelphia's homestead exemption removes $100,000 of taxable assessed value for 2027 β roughly $1,399 a year for most homeowners. Every owner-occupant qualifies regardless of income. It stacks with an assessment appeal; the two are independent. - January 1, 2027
New assessments take effect
Any reduction won on appeal is reflected in the tax bill for the 2027 tax year. Payment is due March 31, 2027.
Is appealing worth it?
In most cases, yes, and in Allegheny County especially, because a fourteen-year-old base year and a falling Common Level Ratio mean a large share of properties are assessed above where the math says they should be.
We will be straight with you about one Pennsylvania quirk:
Unlike some states, a Pennsylvania board of assessment appeals reviews your property's value, and school districts and municipalities can file their own appeals to raise assessments. They routinely target homes that recently sold well above their assessed value.
That is exactly why we evaluate before we file. Ownwell only pursues an appeal when the evidence supports a reduction, and we tell you plainly when it does not.
Important Pennsylvania Property Tax Dates
Tax year 2027 cycle, for the counties Ownwell serves.
Assessment notice mailed
None: 2012 base year values carry forward
From June 29, 2026
Appeal window opens
July 1, 2026
Usually early August
Informal review deadline
N/A (single BPAAR track)
Sept. 1, 2026 (First Level Review)
Formal appeal deadline
Sept. 1, 2026 (BPAAR)
Oct. 5, 2026 (BRT)
Filing fee
None
None
Homestead application due
March 1
Dec. 1, 2026
Tax bills mailed
Varies by taxing body
From Dec. 1, 2026
New assessment effective
Tax year 2027
Jan. 1, 2027
Payment due
Varies by taxing body
March 31, 2027
Further appeal
Court of Common Pleas, within 30 days ($139.75 fee)
Court of Common Pleas, within 30 days ($94.60)
Pennsylvania's statutory annual appeal deadline is August 1 for most counties. Allegheny operates on its own September 1 deadline under County Council Ordinance 06-24-OR, and Philadelphia on the first Monday in October. Deadlines can change by ordinance, and we'll update accordingly.
Counties We Serve in Pennsylvania
Allegheny County
Pennsylvania's second-most-populous county has not reassessed since 2012. Fourteen years of appreciation have pushed the Common Level Ratio down every single year, and every drop widens the gap between what the county says your home is worth and what it should be assessed at. Appeals for tax year 2027 are open through September 1, 2026.
Philadelphia County
A consolidated city-county that assesses at full market value and revalued more than 580,000 properties for tax year 2027. Two independent appeal tracks are available, and the formal deadline is October 5, 2026.
Don't see your county?
Ownwell currently files appeals in Allegheny County and Philadelphia, and we are actively expanding our Pennsylvania coverage.
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Frequently Asked Questions
Which Pennsylvania counties does Ownwell serve?
Ownwell currently files property tax appeals in Allegheny County and Philadelphia County. However, we may serve other Pennsylvania counties in the future.
How do property tax appeals work in Pennsylvania?
Pennsylvania appeals turn on a single question: What is your property worth today? In most counties, including Allegheny, you establish current market value, multiply it by the county's Common Level Ratio, and compare the result to your current assessment. If your assessment is higher, you are over-assessed.
In Philadelphia, the City already assesses at full market value, so you skip the ratio and argue directly that the City's number is wrong. Either way you file with the county board, present comparable sales evidence, and receive a decision. If the board rules against you, you may appeal to the Court of Common Pleas within 30 days.
What is the Common Level Ratio and why does it matter?
The Common Level Ratio is the bridge between a county's frozen base-year assessments and today's market. The State Tax Equalization Board publishes one for each of Pennsylvania's 67 counties every July.
Multiply your home's current market value by your county's ratio, and you get what your assessment should be. Allegheny County's ratio for tax year 2027 is 49.3%, down from 54.5% in 2024, and every year it falls, more properties become appealable.
Why is my assessed value so much lower than what my house is worth?
Because in most of Pennsylvania, it is supposed to be. Your assessed value is not an estimate of today's market value. It's an estimate of what your home was worth in your county's base year. Allegheny County's base year is 2012.
That does not mean your assessment is correct. The whole point of an appeal is that base-year values drift unevenly. Neighborhoods that appreciated quickly end up badly over-assessed relative to those that did not, and the only way to fix it is to file.
When is the deadline to appeal in Allegheny County?
September 1, 2026 for tax year 2027. Allegheny restructured its calendar under County Council Ordinance 06-24-OR to move appeals into the year before the tax year, so the window that is open now β July 1 through September 1, 2026 β determines your 2027 bill. There is no filing fee.
When is the deadline to appeal in Philadelphia?
October 5, 2026 for a formal appeal to the Board of Revision of Taxes, and September 1, 2026 for an informal First Level Review with the Office of Property Assessment. The two are separate deadlines on separate tracks.
What is the difference between a First Level Review and a BRT appeal?
A First Level Review is an informal desk review conducted by the Office of Property Assessment; the application comes with your Notice of Valuation. A Board of Revision of Taxes appeal is a formal, independent hearing.
The critical detail: filing a First Level Review does not preserve your BRT rights. If you want the formal appeal, you must file it separately by October 5. The two tracks can be pursued at the same time.
Can my assessment go up if I appeal?
Pennsylvania works differently from states where an appeal can only go one direction. A Pennsylvania board reviews your property's value, and separately, school districts and municipalities can file their own appeals to raise assessments. They routinely target homes that recently sold well above their assessed value.
This is why Ownwell evaluates your property before filing anything. We only pursue an appeal when the evidence supports a reduction, and we will tell you when it does not.
If I win, do I have to appeal again next year?
In Allegheny County, generally no. Because the county has no scheduled reassessment, a reduction won on appeal carries forward until the county changes your value or reassesses countywide β so the savings repeat annually.
In Philadelphia, the City revalues on a regular cycle, so a new assessment can arrive in a future year. Ownwell continues to monitor your property either way and will file again if your assessment looks unfair.
What homestead exemptions does Pennsylvania have, and will Ownwell file them for me?
Pennsylvania has no single universal statewide homestead exemption. Instead, counties, municipalities, and school districts each adopt their own, which is why the amount varies enormously depending on where you live.
These programs are separate from an assessment appeal, and they stack: reducing your assessed value saves you money on top of any exemption you already have.
Statewide
Homestead and Farmstead Exclusion
Removes a fixed dollar amount of assessed value from an owner-occupied home. Amounts range from a few thousand dollars in many school districts to Philadelphia's $100,000. Apply through your county assessment office; the standard deadline is March 1 for the following tax year. Once approved, it continues until ownership changes or the home stops being your primary residence.
Property Tax/Rent Rebate Program (PTRR)
Pennsylvania's largest relief program. For property taxes or rent paid in 2025, the household income limit is $48,110, with only half of Social Security income counted.
Eligible claimants are age 65 or older, widows and widowers age 50 or older, and people with disabilities age 18 or older. Standard rebates run $380 to $1,000, and residents of Philadelphia, Pittsburgh, and Scranton with high tax-to-income ratios may qualify for supplemental rebates.
File Form PA-1000 with the Department of Revenue. The deadline for 2025 claims has been extended to December 31, 2026.
Disabled Veterans Real Estate Tax Exemption
Veterans with a 100% permanent service-connected disability may qualify for a total exemption on their primary residence, subject to a financial need determination. Apply through your County Director of Veterans Affairs. Surviving spouses may retain the exemption.
Allegheny County
- Homestead/Farmstead Exclusion (Act 50): Reduces assessed value by $18,000 for county real property tax only. Apply through the Office of Property Assessments by March 1. Individual municipalities and school districts may adopt additional exclusions.
- Act 77 Senior Citizen Tax Relief: A flat 30% discount on county real estate tax. Requires age 60 or older (or widow/widower 50-60, or permanently disabled and 18-60), ten continuous years of ownership and occupancy in the county, and gross household income of $30,000 or less. Administered by the County Treasurer.
- City of Pittsburgh Act 77: Pittsburgh administers its own parallel program with a 40% discount on the city portion of the bill for qualifying owners.
Philadelphia
Philadelphia offers the deepest set of relief programs in the state.
- Homestead Exemption: Reduces taxable assessed value by $100,000 for 2027, saving most homeowners about $1,399 a year. Every owner-occupant is eligible regardless of income. Applications due December 1, 2026. No need to reapply unless ownership changes.
- Senior Citizen and Low-Income Real Estate Tax Freeze: Freezes your Real Estate Tax so it will not rise even if the rate or your assessment does. Income limit is $33,500 single or $41,500 married. Applications due September 30, 2027.
- Longtime Owner Occupants Program (LOOP): For owners of at least ten years who saw an assessment increase of 50% or more year-over-year, or 75% or more over five years, and who meet income limits. Caps the taxable portion of the assessment. Applications due September 30, 2027.
- Real Estate Tax Installment Plan: Seniors and income-qualified homeowners can pay in eleven monthly installments instead of a lump sum. Applications due March 31, 2027.
- Owner-Occupied Payment Agreement (OOPA): Monthly payment plans for past-due Real Estate Tax, with some homeowners qualifying for $0 per month. Accepted year-round.
- Active Duty Reserve and National Guard Tax Credit: A credit against the City portion of Real Estate Tax for eligible members called to active duty.
Philadelphia's Real Estate Tax rate is 1.3998% of assessed value, split between the City (0.6159%) and the School District of Philadelphia (0.7839%).
Exemptions and appeals stack. Lowering your assessed value saves you money on top of any exemption you already receive.
What evidence is most helpful for an appeal?
The strongest evidence is comparable sales: Three to five recent sales of genuinely similar homes β same size, age, condition, and school district, ideally within half a mile β that closed below your indicated market value.
Beyond that, documented condition problems with photographs and contractor estimates, and factual errors in your property record.
Mass appraisal systems propagate data errors for years, and a factual error is the easiest appeal to win.
What does Ownwell do?
Ownwell specializes in property tax reduction for homeowners, small businesses, and real estate investors. We evaluate your current assessed value, perform a comparative market analysis, and prepare and file the evidence on your behalf.
We represent you at hearings before the county board. In Allegheny, hearings are commonly conducted by telephone, so you do not need to take time off work. After your appeal, we continue monitoring your assessment and will file again if your taxes look unfair.
What are Ownwell's fees?
There are no upfront costs. Ownwell charges a 35% contingency fee on your first-year savings. If we don't reduce your property's assessed value, you pay nothing. Sign up takes about three minutes; no credit card is required.