Pittsburgh, Pennsylvania

Overview

Pittsburgh has one of the longest histories of split-rate property taxation in the United States, having taxed land at a higher rate than buildings from 1913 — under Pennsylvania's Graded Tax Law for cities of the second class — continuously until 2001.[1][3] It is best known as the setting for Oates & Schwab's landmark 1997 study of land value taxation, and, in its abrupt 2001 repeal, as the clearest demonstration that the policy's practical survival depends on sound land assessment.

The Split-Rate Era, 1913–2001

Pittsburgh (with Scranton) adopted the graded tax in 1913 and phased it in over five increments between 1915 and 1925, reaching a building rate one-half the land rate.[3] The city then held a 2:1 land-to-building ratio from 1913 until 1979.[2]

The 1979–80 reform

Facing fiscal pressure, Pittsburgh sharply increased its land-tax rate around 1979–80, reaching roughly five times the rate on buildings by the 1980s — the most aggressive split-rate regime in the country at the time.[4] By 1989 the ratio stood at almost 6:1 (31.37 mills on land against 5.44 mills on improvements), and it held there until the 2001 repeal.[1]

Oates & Schwab's evidence

The 1980s that followed the reform saw a marked rise in building activity even as the city's steel economy collapsed. Comparing the average annual value of building permits in the 1980s against the prior decade for Pittsburgh and 15 comparison cities, Oates & Schwab (1997) found Pittsburgh's real building-permit value rose roughly 70%, placing it at or near the top of the sample while most comparators were flat or declining — and this despite Pittsburgh losing population and shedding steel jobs, so a general demand surge cannot explain the boom.[4] The authors are careful: the city also ran an aggressive downtown redevelopment push, so they claim only a "meaningful, plausibly significant role" for the tax, not sole causation. The single Pittsburgh case was later generalized by the multi-municipality panels of Plassmann & Tideman (2000) and Banzhaf & Lavery (2010).

The 2001 Repeal — a Reassessment Debacle, Not a Tax Failure

Pittsburgh abandoned the split-rate system in 2001, after nearly 90 years — but the cause was a collapse in the assessment system, not a failure of the tax principle.[1] The sequence is well documented by Mark Alan Hughes's Lincoln Institute case study:[1]

• The assessment freeze and the court order. Allegheny County had chronically under-assessed property on frozen, fractional values. In 1997, Common Pleas Judge R. Stanton Wettick Jr. ruled the freeze violated the state constitution's equal-protection and uniformity requirements, and ordered that all 550,000 properties in the county be reassigned values by an outside contractor.[1]
• The Sabre reassessment. In March 1998 the county awarded Sabre Systems and Service of Ohio a $23.9 million contract; over 27 months Sabre reassessed every property and moved the county from a fractional system (assessed values calibrated to 25% of market value) to full-market-value assessment.[1]
• The 2000 rate-setting. In fall 2000 Sabre reported the overall land share at about 20% of total assessed value; using that, the city set 2001 rates of 31.37 mills on land and 5.44 on improvements (the ~6:1 ratio in force since 1989), adopted by City Council on December 19, 2000.[1]
• The January 2001 crisis. Final reassessment notices — the first to break out separate land and improvement values and the two-tier tax owed — landed in January 2001. The land component rose far more than expected (assessed land value jumped 81% between 2000 and 2001), and Sabre's land-valuation method drew severe criticism for differential impacts by neighborhood.[1]
• The switch to a single rate. On January 19, 2001 — one week after the story broke — Mayor Tom Murphy moved the city to a single (flat) rate; City Council adopted a 10.8-mill uniform rate, described as a "temporary measure" to protect homeowners while the assessment system was fixed. It was never reversed. An analysis of the shift found that 54% of homeowners paid more under the single rate than under the two-tier tax.[1]

The episode is a cautionary tale about administration: the split-rate structure "made a difference" in whose bills rose when the long-frozen assessments were finally corrected, and the political backlash fell on the tax structure rather than on the botched reassessment that actually drove the changes.[1] As the split-rate construction page notes, the flagship case's causal story is not undone by the repeal.

Post-Repeal Record

After 2001 Pittsburgh remained on a single-rate property tax, and Allegheny County's assessment crisis continued (the 2001–2002 assessments were litigated further, under a new contractor, Cole Layer Trumble).[1] The subsequent split-rate literature has turned to the tax base: Yang & Hawley (2022), studying Pennsylvania municipalities, find that adopting split-rate taxation raised aggregate property market values by roughly 21.5% (concentrated in the adoption event), with land values falling only slightly — reinforcing, from the revenue angle, the construction story the Pittsburgh case first put on the map.

See Also

• Pennsylvania — the enabling-law framework · Harrisburg, Pennsylvania — the state's other flagship adopter
• Oates & Schwab (1997) · Split-rate taxation increases construction · Split-Rate Taxation · Land Value Tax

Sources

1. Mark Alan Hughes (2006), "Why So Little Georgism in America: Using the Pennsylvania Case Files to Understand the Slow, Uneven Progress of Land Value Taxation," Lincoln Institute of Land Policy Working Paper WP06ZK1. PDF — used for (full text read this session) the whole 2001-repeal narrative: the 1913–2001 continuous span; the ~6:1 ratio (31.37/5.44 mills) in force since 1989; Judge R. Stanton Wettick Jr.'s 1997 ruling that the county assessment freeze violated constitutional uniformity/equal protection and his order to reassign all 550,000 properties; the March 1998 $23.9M Sabre Systems contract and the 27-month move from fractional (25%) to full-market-value assessment; the fall-2000 ~20%-land-share figure and the December 19, 2000 rate adoption; the January 2001 final notices, the 81% jump in assessed land value between 2000 and 2001, and the neighborhood-differential criticism; and Mayor Tom Murphy's January 19, 2001 switch to a 10.8-mill single rate "temporary measure," under which "54 percent of homeowners paid more." A new source for this wiki, not yet in sources/registry.csv.
2. Alanna Hartzok (1997), "Pennsylvania's Success with Local Property Tax Reform: The Split Rate Tax," American Journal of Economics and Sociology 56(2):205–213. PDF — used for (verified this session) "Scranton and Pittsburgh had a land tax to building tax ratio of 2 to 1 from 1913 until 1979 when both cities expanded land tax rates beyond that ratio." A new source for this wiki, not yet in sources/registry.csv.
3. Edward F. Daume (1930), "A Critical Analysis of the Operation of the Pittsburgh Graded Tax Law," Annals of the American Academy of Political and Social Science 148(1). DOI — used for (abstract verified this session) the 1913 Graded Tax Law's gradual introduction "for cities of the second class … Pittsburgh and Scranton," fully effective in 1925 at a building rate one-half the land rate. A new source for this wiki, not yet in sources/registry.csv.
4. Wallace E. Oates & Robert M. Schwab (1997), "The Impact of Urban Land Taxation: The Pittsburgh Experience," National Tax Journal 50(1):1–21 — wiki summary · PDF. Used for the 1979–80 shift to land taxed ~5× buildings, the ~70% building-permit rise in the 1980s, the 15-city comparison, the shrinking-economy point, and the authors' own redevelopment-confound caution.
5. Zhou Yang & Zackary B. Hawley (2022), "Effects of Split-Rate Taxation on Tax Base," Public Finance Review 50(6):651–679 — wiki summary · Lincoln Institute PDF. Used for the post-repeal tax-base literature (aggregate market values rise ~21.5% on adoption; land values fall only slightly).