Written by: Todd Kratt, Managing Director, Property Tax
What Pennsylvania Property Owners Need to Know in 2026
Pennsylvania’s property tax system is built on a base-year assessment structure, meaning assessed values typically remain in place until a formal reassessment occurs. Unlike many states, there is no mandated reassessment cycle, so property values established during a countywide reassessment can remain unchanged for years—or even decades.
As market conditions shift over time, this structure can create a growing gap between assessed value and current market reality. In Pennsylvania, values generally only change due to reassessment, appeal, new construction, or demolition, making proactive review critical.
Because updated assessments are not applied annually, taxpayers rely on common level ratios to estimate market value for appeal purposes. Without regular evaluation, properties may remain overassessed for extended periods, increasing tax liability year after year.
How Pennsylvania Property Tax Works in Practice
Pennsylvania property assessments follow a base-year system, meaning values often stay in place until a triggering event occurs, such as a reassessment, appeal, or physical change to the property. Because there is no consistent statewide reassessment schedule, counties may operate with outdated values for extended periods.
Assessment notices and timelines vary by jurisdiction, but preliminary notices often precede final assessment change notices, which are commonly issued in early summer during reassessment years. Once final notices are released, property owners may have a limited window—often around 40 days—to file an appeal.
Early awareness of notice timing and jurisdiction-specific deadlines is key to maintaining control over your property tax position.
Key Reassessment Facts
| VALUATION (LIEN) DATE | Typically January 1 |
| TAX YEARS IMPACTED | 2027 and beyond |
| JURISDICTIONS AFFECTED | Lancaster County, Mercer County, Juniata County, City of Philadelphia |
| ASSESSMENT NOTICES EXPECTED | May – June |
| APPEAL DEADLINES | August – October |
Where Overassessment Risk is Highest in 2026
For many Pennsylvania properties, the greatest risk of overassessment in 2026 stems from the disconnect between historical valuation dates and current market conditions.
Across many property types, rents have stabilized or declined, vacancy levels remain elevated in certain sectors, and tenant concessions continue to impact income performance. At the same time, operating expenses have increased, compressing net operating income. Rising interest rates have further contributed to downward pressure on property values.
Despite these shifts, assessments may still reflect outdated assumptions. In addition, declining common level ratios in some jurisdictions can unintentionally inflate assessed values for commercial properties.
Because assessors often rely heavily on the income and cost approaches, the accuracy of underlying assumptions plays a critical role in whether an assessment reflects current market reality.
What This Means for Your Bottom Line
- Multi-year impact: Property tax assessments often carry forward for multiple years, amplifying the impact of inaccuracies over time
- Increased likelihood of overassessment: Market shifts combined with declining assessment ratios can result in overstated values
- Limited correction windows: Missed appeal opportunities may lock in elevated tax positions for years
Valuation Trends by Property Type
| Property Type | Expected Trend | Notes |
|---|---|---|
| Office | ↓ | Vacancy rates continue to reflect lease rollover activity, putting downward pressure on value. |
| Retail | ↓ → | Increased tenant concessions and reduced footprints are impacting income stability. |
| Multifamily | ↓ → | Rent growth has flattened while operating expenses continue to rise. |
| Industrial | ↑ → | Demand remains strong, with values holding steady or increasing in select markets. |
| Hospitality | ↑ → | Stabilized occupancy and rising expenses are constraining NOI and valuations. |
| Senior Care | ↓ → | Older facilities are experiencing declining or stagnant census levels, while rising labor and operating costs continue to compress margins and reduce overall value. |
Why Early Review Matters in Pennsylvania Property Tax
Early assessment review can significantly impact your property tax position for the current year Assessment notices and common level ratios are typically released in late spring, creating a critical window for property owners to evaluate their position. Reviewing assessments early allows for a more thorough analysis of valuation assumptions, supporting data, and jurisdictional factors before appeal deadlines approach.
Identifying potential issues at this stage creates greater flexibility in determining the most effective appeal strategy and avoids last-minute decision-making under tight timelines. DMA adds the most value during this period by combining market data, valuation expertise, and local jurisdiction insight to identify discrepancies quickly. Our team develops supporting analysis, aligns strategy with appeal timing, and provides full representation throughout the appeal process.
Proven Results for Pennsylvania Property Owners
Office Property
- 42% reduction resulting in $650,000 in annual savings, with continued impact over multiple years.
Office Portfolio
- 35% reduction generating $423,000 in annual savings, delivering meaningful multi-year financial benefit.
Industrial Property
- 34% reduction resulting in $293,000 in annual savings, equating to millions in cumulative savings over time.
Why Pennsylvania Owners Engage DMA
- Deep knowledge of local jurisdictions and assessment practices
- Proven strategies across informal and formal appeal processes
- Advanced valuation expertise across property types
- Integrated approach across compliance, consulting, and advisory
Get a Risk-Free Property Tax Review
We’ll review your assessment, compare it to current market conditions, and help determine whether an appeal or adjustment makes sense.
Connect with DMA’s property tax team to identify overassessment risk, evaluate your position, and uncover potential savings.