Pennsylvania Cost Segregation: Bonus, Section 179 and State Basis
By AE Tax Advisors · Published 2026-08-10 · Updated November 8, 2026.
A federal cost segregation projection is not a Pennsylvania tax projection. Identify whether the owner is subject to personal income tax or corporate net income tax, then reconcile the federal asset schedules to the applicable state rules before estimating a benefit.
Separate federal eligibility from the state result
A study must support asset classifications, basis and service dates. Federal bonus eligibility and the owner's ability to use the resulting loss remain separate questions. No standard reclassification percentage guarantees a current deduction or tax saving.
Pennsylvania personal income tax does not allow federal bonus
Pennsylvania does not allow Section 168(k) bonus depreciation for personal income tax. Maintain a state schedule instead of carrying the federal first-year deduction directly onto the Pennsylvania return.
State depreciation also has its own basis and method rules. When Pennsylvania and federal bases differ, straight-line treatment can be required. Do not assume that removing bonus while keeping the same federal MACRS calculation always produces the correct state deduction.
The old $25,000 Section 179 limit is not the current general rule
Act 53 of 2022 changed the Pennsylvania personal-income-tax dollar limitation to follow the federal limitation for qualifying property placed in service in tax years beginning on or after January 1, 2023. The Department of Revenue's current federal-law conformity table reflects that change.
This does not mean every rental asset qualifies. Review Pennsylvania's eligible-property definition, active-business requirement, income limitations and election treatment. A federal Section 179 claim is not sufficient evidence that an identical state deduction is available.
Apply Pennsylvania income-class rules
Pennsylvania personal income tax separates categories of income. A federal nonpassive rental loss does not automatically become a state deduction against wages. Determine the correct state class, permitted offsets and applicable loss treatment before estimating owner savings.
Maintain state basis even where a loss produces no current benefit. The later sale requires a Pennsylvania calculation; the federal adjusted basis is not a substitute.
Corporate net income tax is a separate model
Pennsylvania corporate net income tax starts with federal taxable income and state modifications. Its depreciation adjustments and recovery rules differ from personal income tax. Use the corporation's tax period and current return instructions when preparing that reconciliation.
A corporate structure should be evaluated with owner distributions and exit tax, not solely from the state rate or a first-year depreciation estimate.
Prepare a federal-to-state bridge
- Owner and entity tax classification.
- Land, building and component basis.
- Acquisition and placed-in-service dates.
- Federal depreciation, bonus and elections.
- Pennsylvania basis, method and current deduction.
- Income-class limits and later disposition treatment.
Book a Cost Seg Discovery Call with the study proposal, closing statement and both sets of prior depreciation schedules. The useful output is a reconciled federal and state projection.
Frequently Asked Questions
Does Pennsylvania allow federal bonus depreciation for personal income tax?
No. A separate Pennsylvania computation is required.
Is Pennsylvania Section 179 still capped at $25,000 for all current assets?
No. Act 53 changed the dollar limitation for qualifying property placed in service in tax years beginning in 2023 or later. Other state eligibility and limitation rules still matter.
Can I use the federal adjusted basis when I sell?
Not automatically. Maintain the Pennsylvania depreciation and basis history separately.
Sources and review notes
Reviewed November 8, 2026 by AE Tax Advisors. Examples are illustrative; apply the rules to the relevant tax year and records. See our editorial policy.