Every housing crisis eventually generates a political response, and every political response creates a new set of victims. Real estate transfer taxes — one-time levies imposed on the sale of property — have become the latest "solution" proliferating across American cities: Los Angeles, San Francisco, Philadelphia, Pittsburgh, and Chicago have all either enacted them or tried to. The theory is seductive: tax expensive real estate transactions, and fund affordable housing with the proceeds. Milton Friedman would have recognized the pattern immediately. The problem isn't the goal. The problem is that transfer taxes reliably produce the opposite of their stated purpose — suppressing the very housing transactions that the market depends on to allocate homes to their highest-value uses.
The Economic Mechanism: Transaction Costs Lock People In Place
A real estate transfer tax is a direct levy on the act of buying or selling a home. At the moment a transaction closes, one or both parties pay a percentage of the sale price to government. The immediate economic effect is straightforward: you have made moving more expensive. When moving costs rise, people move less. When people move less, homes that no longer fit their circumstances — too large after children leave, too far from a new job, too small for a growing family — stay occupied by households who would prefer to sell but can't justify the tax cost of doing so.
This "lock-in" effect is well-documented. A 2024 Federal Reserve working paper on housing mobility found that the gap between prevailing mortgage rates and homeowners' existing fixed rates explained 44 percent of the drop in mortgage borrower mobility from 2021 to 2022 — a separate but structurally identical mechanism in which financial friction suppresses housing turnover. Transfer taxes operate by the same logic, permanently baked into every transaction rather than dependent on interest rate cycles.
The international evidence on transfer taxes is unambiguous. A September 2025 report by Sage Policy Group, commissioned by the Community Tax Coalition and examining transfer tax impacts across major U.S. cities, found that even modest transfer taxes reduce home sales by double digits. In Finland, a half-point rate increase reduced apartment mobility by 7.2 percent. In Toronto, a 1.1 percent municipal transfer tax drove home sales down by 15 percent. Less mobility means fewer homes available to buyers — which means the families who most need to find housing in a particular market face a thinner, more competitive supply.
Los Angeles: A $900 Million Lesson in Unintended Consequences
No recent case study illustrates these dynamics more vividly than Los Angeles's Measure ULA — the so-called "mansion tax" passed by voters in November 2022 and enacted in April 2023. The measure imposes a 4 percent additional transfer tax on property sales between $5 million and $10 million, and a 5.5 percent tax on sales above $10 million, on top of the city's existing 0.45 percent base rate. The revenue was supposed to fund affordable housing programs and homelessness prevention services.
The actual results have been a textbook study in the unintended consequences that Friedman and Thomas Sowell spent careers documenting. According to the UCLA Lewis Center for Regional Policy Studies, Measure ULA was projected to raise between $600 million and $1.1 billion annually. Through December 2024 — 20 months into operation — it had raised approximately $480 million in total. That is not $480 million per year; that is $480 million across nearly two years, against annual projections of up to $1.1 billion.
But the revenue shortfall is only half the damage. Research by UCLA's Shane Phillips and Jason Ward found that Measure ULA drove multifamily housing construction down by 18 percent — approximately 1,900 fewer apartment units delivered annually, including a meaningful reduction in affordable units. The tax, designed to fund affordable housing, is suppressing the construction of affordable housing. This is not a paradox; it is precisely the mechanism Friedman described: price interventions in a market with inelastic supply create shortages at both ends of the transaction. Research by a team from Harvard, UC Irvine, and UC San Diego, cited by Matthews Real Estate Intelligence, found that the slump in sales has reduced property tax collections by an amount that offsets an estimated 63 percent of the transfer tax revenue Measure ULA does generate. Los Angeles traded a functioning transaction market for a dysfunctional one, and got less revenue in the exchange.
Chicago Voters Said No — and They Were Right
In March 2024, Chicago voters faced a similar proposal: the "Bring Chicago Home" referendum would have restructured the city's real estate transfer tax to impose steeply higher rates on transactions above $1 million, with the proceeds earmarked for homelessness services. The measure was backed by organized labor and progressive advocacy groups and projected to generate $100 million annually. Chicago voters rejected it, with No votes outpacing Yes by approximately 8 percentage points — a notable margin in one of the country's most reliably progressive large cities. According to Ballotpedia's documentation of the race, the coalition opposing the measure raised concerns about market distortion, economic harm, and the practical precedent of taxing real estate transactions to solve non-housing policy problems.
The Chicago outcome reflects what happens when voters are given enough information to apply basic economic reasoning to a policy question. A tax on the act of selling a home discourages sales. Fewer sales means a less liquid market. A less liquid market means higher prices and less housing available to buyers and renters alike. The promised $100 million revenue figure — like Los Angeles's $900 million projection — assumed transaction behavior would remain unchanged even after making every transaction more costly. It would not.
The Regressive Bite the Revenue Projections Never Mention
Transfer taxes are also strikingly regressive in their distributional impact — a fact often buried beneath the "mansion tax" branding. The Sage Policy Group analysis found that a 1 percent real estate transfer tax is equivalent to 12 percent of annual income for a household earning under $20,000. For a moderate-income family purchasing a starter home at the median price in a major metropolitan area, a 1 to 2 percent transfer levy can represent months of saved income — a barrier that wealthier buyers absorb with ease. Thomas Sowell's observation about the politics of taxation applies directly here: policies structured to appear targeted at the rich routinely impose the largest proportional burden on those with the least ability to pay.
Additionally, the Sage report found that the $245 million reduction in construction activity attributable to higher transfer taxes eliminates nearly 2,700 construction jobs and more than $600 million in annual economic activity nationwide. The workers who lose those jobs are not wealthy property investors. They are the carpenters, plumbers, electricians, and concrete workers who build the apartments that never get started because the economics no longer pencil out.
The Supply-Side Alternative That Actually Works
The analysis of transfer taxes is not an argument against funding affordable housing programs. It is an argument that transaction taxes are among the most economically destructive ways to raise that funding — and that the housing affordability problem is fundamentally a supply problem, not a revenue problem. Hayek's insight about the price system as an information network applies directly: every home transaction is a signal that housing is being allocated to a new use. Transfer taxes suppress those signals, and the result is misallocation — households stuck in homes that no longer fit them, and families who need those homes unable to find them.
The most effective interventions on housing affordability — zoning reform, ADU legalization, streamlined permitting, and the removal of exclusionary land use restrictions — cost government nothing. They work by removing prohibitions rather than imposing new levies. Cities that have cut apartment production by 18 percent while missing revenue projections by hundreds of millions of dollars are paying a very expensive price to learn what any introductory economics textbook would have told them for free.
