Pennsylvania levies no state-level property tax. Every dollar you pay is set locally — and unlike most states, Pennsylvania homeowners deal with a genuine three-layer system: a county tax, a municipal (city, borough, or township) tax, and a school district tax, each set independently by its own governing body and each appearing as a separate line on your bill. The statewide average effective property tax rate is approximately 1.2%–1.3% (the Tax Foundation puts it at 1.26% of home value), which is above the U.S. average of roughly 0.9%, driven in large part by the school district component — typically the largest of the three.
Because assessed values in Pennsylvania are set at the county level and many counties have not conducted a full reassessment in decades, assessed value and current market value can diverge sharply from county to county (and even parcel to parcel). The state's Common Level Ratio, published annually by the Department of Revenue, exists specifically to correct for this gap. This guide explains how the three-layer millage system works, how the Homestead/Farmstead Exclusion and Property Tax/Rent Rebate Program can lower your bill, how Clean and Green (Act 319) preferential assessment works for farm and forest land, how rates compare across major counties, and a worked example for a $350,000 home in Allegheny County.
Pennsylvania is unusual among states because a typical homeowner's property tax bill is the sum of three genuinely independent local levies, each set by its own elected body:
Each layer sets its own millage rate, expressed in mills (dollars of tax per $1,000 of assessed value; 1 mill = 0.1%). Your total bill is the sum of all three:
Property Tax = Assessed Value × (County Millage + Municipal Millage + School Millage)
This trips up most new Pennsylvania homeowners. Your county assessor sets an assessed value that may not have been comprehensively updated in years — sometimes decades. Some counties (Allegheny, Chester, Lancaster) have reassessed relatively recently; others haven't conducted a countywide reassessment since the 1970s or 1980s. When a county's assessed values lag far behind market value, its nominal millage rate looks very high to compensate — while a recently reassessed county's millage looks comparatively low, even though actual bills end up similar.
To make comparisons possible, the Department of Revenue publishes an annual Common Level Ratio (CLR) for every county — the ratio of assessed value to market value based on actual sales. A CLR of 50% means assessed values average roughly half of market value. It's used to calculate the Realty Transfer Tax on sales, and it's the quickest way to sanity-check whether your assessment is proportionate to what your home would actually sell for.
Pennsylvania's statutory framework keeps property taxation entirely local. State education funding to school districts flows as a separate subsidy stream, not property tax revenue — the state's role is mostly limited to setting the rules (millage caps, exclusion mechanics, and the CLR) rather than levying or collecting property tax itself. Combined millage (county + municipal + school) commonly runs from the low-20s to mid-30s in mills, though this varies enormously: a county with older, lower assessed values needs a much higher nominal millage to raise the same revenue as a recently reassessed county. Always check your own municipality and school district's current millage rather than relying on a county-wide average.
Pennsylvania's Homestead/Farmstead Exclusion, authorized under Act 50 of 1998 and expanded through the Taxpayer Relief Act (Act 1 of Special Session 2006), is the state's primary owner-occupant property tax break. It works differently from an exemption you might know from other states.
Rather than a percentage discount, the exclusion reduces the assessed value of a qualifying homestead or farmstead by a flat dollar amount — the same figure for every qualifying property in that taxing jurisdiction. For example, Allegheny County's Act 50 exclusion currently reduces assessed value by $18,000 for the county portion of the bill; school and municipal exclusion amounts, where adopted, are set separately and can differ. By law, an exclusion amount cannot exceed 50% of the median assessed homestead value in that jurisdiction.
The Taxpayer Relief Act of 2006 directs a share of Pennsylvania's legalized gaming revenue to school districts to fund homestead and farmstead exclusions. Adoption isn't automatic or uniform statewide: some districts instead fund a local exclusion through other revenue (such as a local earned income tax under Act 50), so the per-homestead benefit varies by district.
Apply through your county assessment office by the statewide March 1 deadline. Most counties don't require annual reapplication unless your eligibility changes — you must notify the office if you sell, move, or stop using the property as your primary residence. You may only claim one homestead, and it must be your permanent residence, not a vacation or rental property.
The Property Tax/Rent Rebate Program (PTRR), administered by the Pennsylvania Department of Revenue, provides direct rebates to eligible homeowners and renters — separate from, and in addition to, the Homestead Exclusion.
| Household Income | Maximum Standard Rebate |
|---|---|
| $0 – $8,550 | $1,000 |
| $8,551 – $16,040 | $770 |
| $16,041 – $19,240 | $460 |
| $19,241 – $48,110 | $380 |
Qualifying homeowners can receive a supplemental rebate on top of the standard amount — generally available to those with income at or below roughly $32,070 whose property taxes exceed 15% of income, plus eligible residents of Philadelphia, Scranton, and Pittsburgh. Combined maximums reach up to $1,500 for the lowest-income households:
| Household Income | Supplement | Combined Maximum |
|---|---|---|
| $0 – $8,550 | $500 | $1,500 |
| $8,551 – $16,040 | $385 | $1,155 |
| $16,041 – $19,240 | $230 | $690 |
| $19,241 – $32,070 | $190 | $570 |
Applications are filed directly with the Department of Revenue (not the county), through the myPATH online portal or a paper PA-1000 form, available at pa.gov/ptrr. For the 2025 rebate year, the Department of Revenue extended the filing deadline to December 31, 2026. In its initial 2026 disbursement, the Commonwealth reported distributing roughly $226 million in rebates to nearly 376,000 Pennsylvanians.
These are two separate programs: the Homestead Exclusion reduces your assessed value automatically each year once approved, while PTRR is an annual cash rebate you apply for based on income. An eligible senior homeowner can — and should — claim both.
For owners of agricultural or forest land, Pennsylvania's Farmland and Forest Land Assessment Act of 1974 — universally known as Clean and Green (Act 319) — offers a different kind of relief: taxing enrolled land at its use value rather than its fair market value.
Land generally qualifies if it is at least 10 contiguous acres, or if a smaller parcel is capable of generating at least $2,000 in annual gross income from an agricultural commodity (and has done so for the preceding three years). Enrolled land must fall into one of three categories:
Rather than fair market value, the county assessor applies an annual use value supplied by the Department of Agriculture, calculated using an income-capitalization approach — essentially, what the land could earn used for its qualifying purpose. Because farmland's income-generating value is typically far below its speculative market value, especially near growing suburbs, enrollment commonly cuts the taxable assessment by roughly half, though the exact reduction depends on location and land type.
Clean and Green is a long-term commitment enforced by a real penalty. If enrolled land is developed, subdivided, or otherwise removed from a qualifying use, the owner owes a rollback tax: the difference between what was paid under Clean and Green and what would have been paid at fair market value, for up to the preceding seven years, plus 6% annual interest on each year's deferred amount — a significant number for landowners near development pressure to plan around.
Applications are filed with the county assessment office. More than 12 million acres are currently enrolled statewide. Because eligibility and use values are set at the county level using state-supplied figures, confirm current use values and application timing with your specific county before enrolling.
Because all three layers of Pennsylvania's system — county, municipal, and school — are set locally, effective rates (annual tax as a percentage of home value) vary substantially across the Commonwealth's 67 counties. The figures below are approximate effective rates compiled from secondary property-data aggregators (SmartAsset) rather than a single official statewide table, since the state does not itself publish a per-county effective-rate ranking; treat them as directional rather than exact for your specific parcel.
| County | Metro/Region | Approx. Effective Rate | Approx. Median Annual Tax |
|---|---|---|---|
| Delaware | Philadelphia suburbs | ~1.67% | ~$6,141 |
| Allegheny | Pittsburgh | ~1.39% | ~$3,368 |
| Montgomery | Philadelphia suburbs | ~1.25% | ~$5,795 |
| Bucks | Philadelphia suburbs | ~1.17% | ~$5,448 |
| Lancaster | Lancaster | ~1.17% | ~$3,890 |
| Chester | Philadelphia suburbs | ~1.15% | ~$6,198 |
| Philadelphia | Philadelphia | ~0.83% | ~$2,100 |
| Forest | Rural, north-central PA | ~1.0–1.1% of assessed value (assessed values well below market value; sale-price-based effective rates can appear far higher) | ~$860 (lowest median tax bill in the state) |
Philadelphia's effective rate looks low partly because the city relies heavily on its wage/earnings tax and business taxes rather than property tax, and partly because its wide range of home values pulls the median down. Forest County shows the assessed-value-lag problem directly: because assessed values there haven't been comprehensively updated in a long time, the county's own tax-per-assessed-value ratio is low (~1.0–1.1%), but bills calculated against actual recent sale prices can look far higher — a reminder that a quoted "effective rate" depends heavily on whether it's measured against assessed value or true market value.
Within any single county, the school district you fall into typically affects your final bill more than the county-level average suggests, since school millage is usually the largest component and can differ significantly between adjacent districts. Always check your specific municipality and school district's current millage rather than relying on a county-wide average alone.
This example illustrates both the quick estimate method and the more precise assessed-value method, since Allegheny County is a useful case study of how Pennsylvania's assessed-value-versus-market-value gap plays out in practice.
Using Allegheny County's approximate effective rate of ~1.39% (SmartAsset, based on actual sale prices):
$350,000 × 1.39% ≈ $4,865 per year (before any homestead exclusion)
Allegheny County's Common Level Ratio has recently been around ~50% — assessed values average roughly half of market value, since the county's last reassessment was 2012 and values have drifted since. Applying that ratio:
Estimated assessed value: $350,000 × 50% ≈ $175,000
For a home in the City of Pittsburgh, combined 2026 millage across all applicable layers is approximately:
Tax before exclusion: $175,000 × 2.56% ≈ $4,480 per year
If this is the owner's primary residence and they've filed for the Act 50 homestead exclusion, Allegheny County's current exclusion reduces assessed value by $18,000 for the county portion only:
The quick effective-rate estimate (~$4,865) and the detailed assessed-value/millage calculation (~$4,480, before the homestead reduction) land in the same general range — both are legitimate approximations, and the gap is a normal feature of Pennsylvania's system, not an error. Your actual bill depends on your parcel's specific assessed value (from the county's online property search), your municipality and school district's current millage, and whether you've filed for the homestead exclusion.
Because counties reassess on wildly different schedules, many homeowners eventually find their assessed value doesn't reflect what their home would actually sell for. Pennsylvania law gives every property owner the right to appeal.
Divide your assessed value by your county's current Common Level Ratio to get an implied market value:
Implied Market Value = Assessed Value ÷ Common Level Ratio
If that figure looks far off from recent comparable sales in your neighborhood, that's the basis for an appeal. In counties that reassess infrequently, such as Allegheny, a home bought well below its CLR-implied value (or one whose neighborhood has appreciated faster than average) is a common trigger — for the homeowner or, in some counties, the school district.
Appeals go to your county's Board of Assessment Appeals, with a filing deadline that varies by county (commonly late summer or early fall for the following tax year — confirm with your county). Evidence typically includes recent comparable sales, an independent appraisal, and condition photographs. A successful appeal changes your assessed value going forward; it doesn't refund prior years.
In several counties, including Allegheny, a sale can trigger an automatic "spot reassessment" of that specific parcel, raising the assessed value — and the tax bill — for a new buyer even though neighboring assessments stay unchanged. Buyers should budget for this rather than assuming the prior owner's bill carries over.
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