Tax Design: LVT as Policy Machinery

If you are briefing a decision-maker, the interesting questions about a land value tax are not "is land rent real?" but "how do you build the thing, and what can it actually deliver?" This portal is organized around the five design questions a staffer has to be able to answer under cross-examination: assessment (can you measure land value separately, and how accurately?), rate and revenue (how much can it raise, and what is hype versus evidence?), transition (who gets hurt when land prices fall, and how do you cushion it?), progressivity (does the burden actually fall on the wealthy?), and implementation (where has split-rate been done, and what happened?).

On assessment, the honest answer is that separating land from building value is a known, solvable problem, not a mystery. Mass-appraisal methods — computer-assisted valuation, hedonic regression — are standard practice; the Berlin study finds statistical land-value estimates correlate ~0.845 with official expert assessments, and Australian appeal rates sit well below the internationally accepted 2% error benchmark. The land-cannot-be-assessed objection is the most common practical one and the most fully answered.

On rate and revenue, discipline matters most, because this is where advocates overreach. Land rent is a major potential revenue source, but full replacement of all other taxes is contested — Krugman's and Blaug's skepticism is steelmanned on the objection page. Two ideas expand the estimated base — ATCOR ("all taxes come out of rent") and its companion EBCOR — but treat them exactly as this wiki does: as attributed theoretical hypotheses (Gaffney's), not established results. A staffer who presents ATCOR as fact will be caught; a staffer who presents it as "proponents argue, untested" will not.

On transition, the real cost is honest and manageable: introducing LVT capitalizes into an immediate fall in land prices, hitting owners who bought at untaxed prices — a one-time wealth shock addressed by phase-in and deferral, not waved away. On progressivity, the record is genuinely two-sided: because land wealth is concentrated, LVT is progressive by design, but household-level incidence is jurisdiction-specific, and one revenue-neutral case (Dover, NH) was regressive absent a credit — so a flat refundable dividend is what makes it sharply progressive. Finally, the canons of taxation give you the framing to score it whole against Smith's and George's classical tests. The pages below are grouped by design question, strongest evidence first.

Assessment — can you measure land value?

• Objection: land value can't be assessed accurately — start here: the most common practical objection, with the empirical and methodological responses. Status: addressed.
• Mass Appraisal Methods — the statistical toolkit assessors actually use to separate land from building value at scale.
• Kolbe et al.: land-value appraisal in Berlin — the source of the 0.845-correlation claim: statistical estimates matched against the city's official land-value map.
• Hefferan & Boyd: mass appraisal in Australia — the real-world reliability signal: appeal rates well below the accepted 2% benchmark.

Rate and revenue — how much can it bear?

• Objection: LVT can't raise enough revenue — Krugman's and Blaug's versions steelmanned; the honest target is "major source," not "the only tax."
• Land rent could fund a large share of government — the problem page, graded Contested: estimates vary widely with method and scope.
• ATCOR — "all taxes come out of rent," Gaffney's base-expanding thesis, labeled an untested hypothesis — cite it as such.
• EBCOR — the companion: deadweight losses of distortionary taxes also fall on rent — same attributed status.
• Gaffney (2005): the ATCOR concept — the primary source that names and states the thesis.

Transition and incidence — who pays?

• Objection: LVT inflicts a one-time wealth shock — the real transition cost and how a phased introduction manages it.
• Objection: LVT hurts the "asset-rich, cash-poor" — the "little old lady in a valuable house," resolved by deferral and phase-in.
• A land value tax can be progressive — the two-sided record: progressive by design, but incidence is jurisdiction-specific — a refundable credit is what clinches it.

Efficiency and revenue quality

• LVT can replace capital taxes without efficiency loss — Strong: the core efficiency case, theory plus calibrated models, for shifting off capital and onto land.
• Assessing the Theory and Practice of LVT (Dye & England) — Core: the standard modern policy reference — the one document to hand a skeptical staffer.

Implementation — where it has been done

• Split-Rate Taxation — the practical, incremental design: a higher rate on land than buildings, used across Pennsylvania.
• Split-rate taxation increases urban construction — the measured effect, Moderate–Strong, from the actual implementations.
• Yang: effects of split-rate on the tax base — panel evidence from Pennsylvania municipalities on what switching does to the base.
• Canons of Taxation — the closing frame: how LVT scores against Smith's four maxims and George's four conditions, revenue caveat included.

Guides: Start Here · Evidence Dashboard · How We Verify Portals: Housing · Cycles & Crises · Tax Design · Climate & Commons · History & People · Case Studies · Objections Answered · The Rent Frontier