Gaffney (1971): The Property Tax Is A Progressive Tax

Overview

"The Property Tax Is A Progressive Tax" is Mason Gaffney's paper delivered to the National Tax Association's Sixty-Fourth Annual Conference on Taxation (1971) and printed in that conference's Proceedings, pp. 408–426, while Gaffney was at Resources for the Future, Inc.[1] It directly rebuts what Gaffney calls "a common block phrase among economists and in the popular press" — the claim that the property tax is regressive — with a sustained, data-supported argument that runs to four distinct lines of attack.

The paper fills a genuine gap in the wiki's property-tax coverage. The existing academic treatment of who bears the property tax is research/mieszkowski-property-tax-incidence, Peter Mieszkowski's 1972 "new view," which reaches a related conclusion (the property tax functions more like a tax on capital income than a regressive excise tax) through a wholly different mechanism: a general-equilibrium model of capital mobility across jurisdictions and sectors. Gaffney's paper — delivered in October 1971, print date 1971, essentially simultaneous with Mieszkowski's Journal of Public Economics piece — makes no capital-mobility argument at all. His case rests on ownership concentration and measurement bias: property ownership is so much more concentrated than income that almost any correctly specified comparison finds the property tax progressive, and the standard studies finding it regressive are, in Gaffney's telling, methodologically flawed in specific, correctable ways. The two papers are best read as independent arrivals at "the standard regressivity finding is wrong," from disjoint premises — one about capital's ability to relocate, the other about who owns what — rather than as competing versions of the same argument.

The Historical Frame

Gaffney opens with an argument from the tax's original design purpose rather than from data: the Founders regarded property taxation as redistributive. He quotes Madison on protecting "the minority of the opulent" from a "landless majority," and traces a pattern through 19th-century America in which propertied elites resisted extending the property tax and the franchise together — company towns like Arvin, California kept unincorporated "to keep migrant laborers from using the property tax on the owners"; northern Maine kept unincorporated, he argues, so paper companies could avoid "letting immigrant voters tax their property"; and the U.S. Southeast, having disenfranchised much of its poor population through poll taxes, relied comparatively less on the property tax than other regions and pioneered the state sales tax instead. Gaffney's inference: "If the property tax were regressive the dominant minority would seem rationally to have imposed it on the disenfranchised poor. Instead they pioneered the state sales tax." This is offered as circumstantial, not decisive, evidence — a plausibility argument that motivates taking the modern regressivity consensus as an artifact requiring explanation, not received wisdom.

Argument A: Property Ownership Is Far More Concentrated Than Income

Gaffney's central empirical claim is that whichever concentration measure you use, property is distributed far less equally than income. The top 10% of US income receivers get about 30% of income (as of his writing); Table 1 of the paper assembles concentration figures from a dozen independent studies of wealth, spanning 1926–1971:

(Reproduced selectively from Gaffney's Table 1; the paper computes full Gini/Lorenz ratios for each distribution, not reported here.)[1]

Gaffney argues these figures understate true concentration for four compounding reasons he works through with primary data of his own: (1) most studies omit the "unpropertied" — the roughly half of adults who own no meaningful taxable property at all, while nearly everyone has some wage income, so income data cover more of the population than property data by construction; (2) studies that use assessed rather than market value bake in regressive assessment practices (Gaffney's own Milwaukee ranking finds the top 10% of industrial firms held 76% of true land value but only 61% of assessed land value — an 15-point understatement from assessment practice alone); (3) partial inventories (of a single city, industry, or asset class) systematically understate concentration because the largest holders are most likely to be diversified outside the surveyed class; and (4) large holdings are frequently held by "straw owners" who are individually undercounted. He adds a fifth mechanism distinct from pure measurement: ownership of large property is itself "borrowing power and credit rating," giving large owners access to leverage, banking influence, and control premiums unavailable to small holders — the same credit-access concentration mechanism documented from Gaffney's other work on Land Monopoly, here applied specifically to explain why measured concentration in any single dataset undershoots true concentration.

Argument B: The Tax Is Not Primarily Shifted Forward

The standard case for regressivity assumes the property tax is passed forward to tenants and consumers as a general consumption tax. Gaffney argues this assumption is unsupported on both the land and capital components. On land: contemporary studies (pre-dating a 1968 Manvel study Gaffney cites as correcting them) badly understated land's share of real estate value, using figures near 15% against Gaffney's own Milwaukee data and cited California and Douglas Commission figures near 40% and rising — and land's share is highest in commercial property (he notes 40% of Milwaukee retail land was under gas stations) and lowest in owner-occupied housing, precisely inverting where the shifting assumption would need to hold for the tax to look regressive. On capital: a tax on capital is a tax on one input, not on output, so it cannot be "simply shifted forward" the way a proportional-to-output tax could; it falls disproportionately on capital-intensive firms unable to pass it through without losing ground to labor-intensive competitors, and in a genuinely closed economy would be borne mostly by capital itself. Gaffney's institutional aside is sharp: "In a cartelized society like ours the forward shifting thesis is not just shaky but ludicrous. Untaxing property, as by revenue sharing, would strengthen the hand of every cartel now locking up excess capacity."

Argument C: Regression Fallacy — "Which Top 10% Do You Mean?"

Gaffney's most technical point is a direct methodological challenge: income and property are loosely correlated, with large individual residuals, so which variable you rank by determines the answer. Rank households by income and the top decile may hold a smaller share of property than of income (making the tax look regressive); rank the same population by property value instead and an entirely different top decile emerges — "some of the humble have been exalted, and the mighty laid low" — holding a larger share of property than of income (making the tax look progressive). He argues the standard studies "uncritically chosen income as the proper ranking variable, by assumption, thus practically preordaining the conclusion." His resolution is not a statistical trick but a normative argument for why wealth is the correct ranking variable: he lists five independent rationales for basing tax capacity on wealth rather than current income (ability-to-pay derives from wealth as well as income; property income requires no current labor and so occupies "a higher welfare plane" than equivalent wage income; wealth taxation checks the compounding advantage of inherited property and credit access; and the property tax "plugs loopholes" in an income tax "inexorably devolving into a payroll tax"). Once ranked by wealth rather than income, he shows the same Milwaukee data used for Table 1 confirms the tax is progressive by his measure.

Argument D: Income Is Mismeasured — the "Reagan Effect"

Gaffney's fourth argument targets the reference measure itself: comparisons typically use Adjusted Gross Income (AGI), which he argues systematically undercounts income accruing to property owners through the era's full catalogue of tax-shelter mechanisms — accelerated depreciation, percentage depletion, capital-gains treatment, deferred realization, non-realization of unrealized accrued gains, and interest deduction chief among them. His illustration is pointed: "A certain citizen in 1970 reported no AGI, but heavy property taxes, which might make the property tax quite regressive were it not Ronald Reagan." Ranking by an income measure that property ownership itself depresses "pre-ordains" a finding of regressivity that Gaffney calls "totally illusory." He also flags a specific error in Dick Netzer's widely cited property-tax incidence work: treating property tax payments as proportional to rent rather than to capital value — a mismeasurement that biases the comparison, in Gaffney's account, because in declining neighborhoods capital value is a low multiple of rent (his Milwaukee "Inner Core" rule-of-thumb: 30 months' rent buys the property outright) while in appreciating neighborhoods capital value runs far above current rent, exactly reversing the picture a rent-based measure implies.

Standing and Limits

• A conference paper responding to a specific empirical literature of its moment (chiefly Musgrave, Carroll, Cook & Frane 1951 and its descendants, plus Netzer 1966 and Morton), not a general theoretical result. Several of the studies Gaffney criticizes are pre-1970s and the regressivity literature has evolved substantially since (see Mieszkowski and the "three views" synthesis on that page); this paper documents Gaffney's own 1971 critique of the older traditional-excise-tax literature, not a response to the "new view" itself, which postdates it by roughly a year.
• The wealth-concentration table blends heterogeneous, non-contemporaneous sources (1926 estate data next to 1971 acreage data; national data next to two of Gaffney's own single-city Milwaukee studies) at different levels of methodological rigor; treat the table as illustrative of concentration patterns across many independent measurements, not as a single coherent dataset. Several rows are Gaffney's own unpublished mass-appraisal research (marked "preliminary, subject to adjustment" in the original), not independently verified here.
• The paper predates, and cannot address, the "new view"/"benefit view" literature that now frames mainstream property-tax-incidence debate; this wiki's Mieszkowski page and its "three views" section are the more current academic anchor for incidence questions generally. Gaffney's ownership-concentration argument is a genuinely distinct axis (who owns the taxed asset) from all three views catalogued there (which concern how the tax's burden is reallocated through markets), and the two are complementary rather than competing — a reader should not treat this paper as superseding or updating Mieszkowski's framework.
• The "regressive assessment" concession is significant and Gaffney states it plainly: "A regressively conceived tax remains regressive under the best of management. If the property tax is progressive in essential concept, then it needs reform and new life rather than the gas chamber." His entire case is about the tax's concept (a uniform rate on true capital value), not about how it is actually administered in any given jurisdiction — a distinction this page's title inherits directly from the source and should not be read to mean "property tax administration is progressive in practice."
• Motive-attributing historical claims are Gaffney's own interpretation, not established historiography. The Arvin/northern Maine/Southeast franchise-restriction argument in the Overview is presented by Gaffney as circumstantial evidence for a thesis about elite intent, not as a documented causal history; this wiki carries it as Gaffney's own argument, attributed (D-claim), not as settled fact.

Bears On

• Research: Mieszkowski (1972), property tax incidence — a distinct, independent, near-simultaneous argument for a related conclusion (the property tax is not simply a regressive consumption tax), reached through ownership-concentration and measurement critique rather than capital-mobility general equilibrium; the two are complementary, not duplicative.
• Concept: Land Monopoly — the wealth- concentration table (Table 1) is a new, independent multi-study empirical dataset on property/wealth concentration, extending the credit-access concentration mechanism already documented there from Gaffney's other work.
• Benefit: Landlords cannot pass a land value tax on to tenants — Argument B's case against forward shifting of the capital and land components is an early (1971), independently reasoned precedent for this outcome's claim, historical context rather than new formal evidence.
• Concept: Split-Rate Taxation — the paper's land/capital shifting analysis (higher land share in commercial property than in owner-occupied housing) is directly relevant to predicting who wins and loses under a shift toward land, a question that page's "Practical Obstacles" section already raises from Cohen & Coughlin's later, different angle.
• Benefit: A land value tax can be progressive — carried as independent historical corroboration of the concentration premise (ownership more concentrated than income), reached by a distinct methodological route decades before the modern wealth-data evidence; not counted among that page's formal supporting sources.

Provenance

Scanned PDF with a legacy OCR text layer (unembedded WinAnsi-encoded base-14 fonts, the same pattern documented on the K-series, H3, and F7 pages). Re-OCR'd this session at 250dpi with Tesseract 5.3.4 (pdftoppm -r 250 + tesseract --psm 3); canonical text mirrored to sources/gaffney/text/G17-PropertyTaxProgressiveTax.CV.txt.

See Also

• Mieszkowski (1972), property tax incidence
• Land Monopoly
• Landlords cannot pass a land value tax on to tenants
• Split-Rate Taxation
• Gaffney (1992): Rising Inequality and Falling Property Tax Rates
• Mason Gaffney

Sources

1. Mason Gaffney, "The Property Tax Is A Progressive Tax," Proceedings of the Sixty-Fourth Annual Conference on Taxation, National Tax Association—Tax Institute of America (1971), pp. 408–426 — used for the entire page. Scanned PDF, legacy OCR text layer; re-OCR'd this session at 250dpi with Tesseract 5.3.4. Free PDF (masongaffney.org); local mirror at sources/gaffney/text/G17-PropertyTaxProgressiveTax.CV.txt.
2. Peter Mieszkowski (1972), "The Property Tax: An Excise Tax or a Profits Tax?", Journal of Public Economics 1(1): 73–96 — used for the "new view" comparison. Wiki summary