Cost Segregation Study in Pennsylvania

Pennsylvania is an outlier in two directions at once. Its 3.07% flat personal income tax is among the lowest in the country, which makes the state cost of a bonus depreciation addback nearly trivial. But Pennsylvania is also one of the last income tax states with no pass-through entity tax, which means Pennsylvania business owners have no way to convert state tax into a federally deductible entity-level expense.

Pennsylvania also runs its own income classification system that ignores the federal passive activity rules entirely. That produces outcomes on a cost segregation study that surprise investors who assume the federal analysis carries over.

How Pennsylvania Income Tax Interacts With Federal Strategy

Pennsylvania imposes a flat 3.07% personal income tax with no brackets, no standard deduction, and no preferential rate for capital gains. The corporate net income tax is 7.49% for 2026, down from 7.99% in 2025 under the phase-down enacted in HB 1342 in 2021, which steps the rate down 0.5 points per year toward 4.99% in 2031.

Local earned income taxes add roughly 1% to 3% depending on the municipality and school district, and Philadelphia operates its own regime including the Business Income and Receipts Tax and the Net Profits Tax.

At 3.07%, the state cost of Pennsylvania's bonus depreciation addback is small in absolute terms. A $500,000 addback costs about $15,350 in Pennsylvania tax in the placed-in-service year, against a federal deduction worth up to $185,000. This is the most favorable federal-to-state ratio of any decoupling state on this list.

Pennsylvania Pass-Through Entity Tax

Pennsylvania does not have a pass-through entity tax. Legislation has been introduced repeatedly, including SB 659 which passed out of the Senate Finance Committee in March 2024, and a PTET was again left out of the state budget. As of 2026 Pennsylvania remains one of a small group of income tax states with no PTET election available.

The consequence for Pennsylvania pass-through owners is straightforward: state and local income tax paid on business income stays on the individual return, subject to the federal SALT cap, with no mechanism to move it to the entity where it would be fully deductible.

Two partial responses exist. Pennsylvania owners with operations in other states can often elect those states' PTETs on the income sourced there, capturing the deduction on the out-of-state portion. And because Pennsylvania's rate is only 3.07%, the amount at stake is smaller than it would be in a high-rate state. A Pennsylvania owner with $1 million of business income has roughly $30,700 of state tax at issue, where a New Jersey owner in the same position has more than $100,000.

For owners with meaningful out-of-state activity, mapping which states permit a PTET election on their sourced income is usually the highest-value hour of Pennsylvania planning available.

Pennsylvania Depreciation Conformity

Pennsylvania disallows bonus depreciation under IRC Sec. 168(k) for both of its income taxes, but by different mechanics.

For the personal income tax, Pennsylvania does not follow Sec. 168(k) at all. Depreciation for PIT purposes is computed under the ordinary cost recovery rules without any special allowance. Pennsylvania's Section 179 limit was aligned with the federal limitation for property placed in service after December 31, 2022 under Act 53 of 2022, which is a meaningful improvement over the prior $25,000 cap but is generally exhausted quickly on a real estate study.

For the corporate net income tax, Act 72 of 2018 resolved a problem the state had created for itself. Taxpayers add back the 100% federal bonus deduction and then deduct depreciation computed under IRC Sec. 167 and 168 without regard to Sec. 168(k). In other words, Pennsylvania recomputes on straight MACRS. Before Act 72, corporations were left with no state recovery at all until disposition.

Philadelphia follows the Pennsylvania approach for its business taxes, so city filers are not maintaining a third schedule the way New York City filers are.

Cost Segregation Considerations Specific to Pennsylvania

The Pennsylvania-specific analysis has one dominant feature and two secondary ones.

The dominant feature is that Pennsylvania does not follow the federal passive activity loss rules of IRC Sec. 469. Pennsylvania instead sorts income into eight classes and generally does not permit a loss in one class to offset income in another. Critically, Pennsylvania also does not provide a suspended-loss carryforward mechanism for personal income tax purposes the way Sec. 469 does. A Pennsylvania rental loss that cannot be used against rental income in the year it arises is frequently lost for Pennsylvania purposes rather than suspended and carried forward.

That inverts the usual planning advice. In most states the counsel is that a suspended federal loss will eventually be freed on sale. In Pennsylvania, an unusable state loss may simply disappear. Pennsylvania investors with a single rental and large wage income should therefore expect the state-side value of a cost segregation study to be close to zero, and should size the study decision on the federal benefit alone.

The first secondary point is the low rate working in your favor. Because Pennsylvania's addback costs only 3.07%, the federal-versus-state tradeoff that makes California and New York investors hesitate barely registers here. Pennsylvania is one of the easiest states in which to justify a study on the numbers.

The second is the corporate rate phase-down. With the CNIT dropping half a point per year through 2031, Pennsylvania corporate taxpayers have a rate-arbitrage reason to accelerate deductions into earlier, higher-rate years. A deduction taken at 7.49% in 2026 is worth more than the same deduction at 5.99% in 2029. For Pennsylvania C corporations holding real estate, that argues for running lookback studies and Form 3115 catch-up adjustments sooner rather than later.

Working With AE Tax Advisors in Pennsylvania

AE Tax Advisors works with real estate investors, business owners, and high-income professionals across Pennsylvania and all fifty states. We are a licensed CPA and IRS Enrolled Agent practice based in Billings, Montana, and we handle the engineering-based cost segregation study, the Pennsylvania conformity adjustments, the entity structuring, and the return preparation as one engagement rather than three vendors who do not talk to each other.

That matters more in Pennsylvania than it does in a state with simple conformity. A cost segregation provider who delivers a federal-only report leaves you and your preparer to work out the Pennsylvania treatment after the fact, which is where the errors happen. We model the federal and Pennsylvania outcome together before the study is commissioned, so you know what the number actually is on both returns before you spend anything.

Related reading: the complete guide to cost segregation, our cost segregation study service, short-term versus long-term rental tax treatment, lookback studies and Form 3115, and multi-state tax planning.

Pennsylvania tax rates, pass-through entity tax rules, and depreciation conformity provisions described on this page reflect law in effect as of August 2026 and are provided for general information only. State conformity changes frequently and often retroactively. Nothing here is tax advice for your situation, and no client relationship is created by reading it. Talk to us about your facts before acting.