Pennsylvania Rental Property Taxes: Why the County Decides

Program and regulatory figures verified September 15, 2026. Details change; confirm your scenario with us.

By Mike Certo, Cornerstone First Mortgage · NMLS #260555 · Updated September 15, 2026

This is the page most Pennsylvania investors wish they had read before their first purchase. The tax line sits inside PITIA, in the denominator of your DSCR ratio, and Pennsylvania computes it in a way that makes every state average useless.

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There is no Pennsylvania property tax rate

Ask what property taxes run in Pennsylvania and the honest answer is a question back: which county, which municipality, which school district, and what is the parcel's assessed value? Three separate taxing bodies levy millage on the same property. The assessed value that millage applies to is not market value. It is a figure pegged to whatever base year the county last used for a reassessment, which in some counties is recent and in others is a generation old.

That structure produces a spread no other state we lend in comes close to.

The common level ratio, and the table that proves the point

Each year before July 1, the State Tax Equalization Board certifies a common level ratio for every county, derived from sales-ratio studies. The Department of Revenue publishes the reciprocals as common level ratio factors. Here is the published table for documents accepted from July 1, 2026 through June 30, 2027, based on 2024 sales data:

Pennsylvania Department of Revenue, 2025 Common Level Ratio Real Estate Valuation Factors, published July 2026, based on State Tax Equalization Board 2024 sales data. Applicable to documents accepted July 1, 2026 through June 30, 2027. Philadelphia's 1.06 applies through December 31, 2026 and 1.00 after that. Factors are reissued every July.

What the factor actually means for your payment

The factor is the mathematical reciprocal of the common level ratio. Allegheny's 2.03 corresponds to roughly a 49% ratio, so assessed values there sit near half of current market value. Bucks' 17.86 corresponds to roughly 5.6%, so assessed values sit at a small fraction of market value, with a much higher millage rate applied to compensate.

The trap is assuming a low factor means low taxes or a high factor means high taxes. It means neither on its own. What the factor tells you is the size of the gap between what you pay for a property and what the county currently has it assessed at, and that gap is the single best predictor of whether your tax bill will be revised after you buy.

The newcomer appeal: the thing that catches out-of-state buyers

In Pennsylvania you are not the only party who can appeal your assessment. Allegheny County's Board of Property Assessment Appeals and Review states it plainly in its own FAQ: "Other parties that have an interest in your tax assessment may file an appeal on your property," listing the County, the School District and the Local Taxing Authority. The same document warns that on any appeal "Your assessment may INCREASE, DECREASE or STAY THE SAME."

School districts watch recorded sales. When a property that has been assessed on a 2012 base year sells for several times its assessed value, that sale is a filing opportunity. The result is a bill that bears no resemblance to the one the seller showed you, arriving in the year after your purchase. Allegheny's appeal forms are available July 1 through September 1, 2026, for tax year 2027, which is the cadence: an appeal filed in one year lands on the next year's bill.

How we underwrite it

• We pull the parcel's current assessed value, not an estimate from price.
• We pull the county, municipal and school district millage that actually applies to that parcel.
• We compare the purchase price to the assessed value and look at the county's factor. A wide gap in a high-factor county is a flag.
• Where the gap is wide, we run the ratio twice: once at the current bill and once at a post-appeal assessment. If the deal only clears on the current bill, you should know that before you offer.

Appealing your own assessment

The same right runs your direction. Allegheny's process is representative: check the property record card for data errors, compare assessed values of similar properties in the same school district, gather recent sales of comparable properties within 12 months, and submit evidence to all interested parties at least three days before the hearing. Most hearings are held by telephone. Each party gets one postponement, up to seven days before the hearing. Remember the same warning applies to an appeal you file: the assessment may go up.

No pressure and no obligation: a 20-minute call with our team, the real full payment run against a realistic Pennsylvania rent, with the actual parcel tax bill in it, and a straight answer on whether the deal clears before you write an offer.

Frequently asked questions

What is the property tax rate in Pennsylvania?

There is no single rate. Pennsylvania layers county, municipal and school district millage over an assessed value that is pegged to a county-specific base year. The Department of Revenue's common level ratio factors effective July 1, 2026 run from 1.00 in Philadelphia, Lackawanna, Perry, Schuylkill, Clarion and Warren to 17.86 in Bucks. Underwrite the parcel's actual assessment and district millage, never a state average.

What is a common level ratio in Pennsylvania?

It is the ratio of assessed value to current market value in a given county, certified each year before July 1 by the State Tax Equalization Board from sales-ratio studies. The Department of Revenue publishes the reciprocal as a CLR factor. Allegheny's 2.03 factor works out to roughly a 49% ratio; Bucks' 17.86 factor to roughly 5.6%. The factor tells you how far a county's assessments lag current market value.

Can my school district raise my Pennsylvania property assessment after I buy?

Yes. Allegheny County's appeals FAQ states that other parties with an interest in your assessment may file an appeal on your property, naming the County, the School District and the Local Taxing Authority, and warns that an assessment may increase, decrease or stay the same. A sale far above a stale base-year assessment is exactly what prompts a district filing, which is why we model the post-appeal tax line.

Which Pennsylvania counties assess closest to market value?

The counties with a 1.00 factor effective July 1, 2026: Philadelphia (1.06 through the end of 2026, then 1.00), Lackawanna, Perry, Schuylkill, Clarion and Warren. Luzerne at 1.14, Blair at 1.28, Beaver at 1.34 and Indiana at 1.42 are close behind. In those counties the gap between purchase price and assessed value is narrow, so post-purchase reassessment exposure is low.

How do I appeal a Pennsylvania property assessment?

File with the county board during its annual window; in Allegheny County forms are available July 1 through September 1, 2026, for tax year 2027. Check the property record card for errors, compare assessments of similar properties in the same school district, and gather sales of comparable properties from the last 12 months. Submit evidence to all interested parties at least three days before the hearing. Note that an appeal can raise your assessment as well as lower it.

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Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Educational content, not a loan commitment and not legal or tax advice. County assessment practice, school district millage, city rental-permit rules, and short-term-rental ordinances change; confirm current requirements with the county assessment office, your CPA, or a Pennsylvania real estate attorney before you buy. Loans are subject to buyer and property qualification.