A wealth tax is an annual government levy on the total net value of everything a person owns — real estate, investments, cash, business equity, and other holdings — after subtracting debts. Unlike an income tax, which applies to what you earn in a year, a wealth tax applies to what you have accumulated, whether or not any of it produced income. The United States has no federal wealth tax, and only a handful of countries currently impose one, though proposals surface regularly in Congress and in several state legislatures.
How It Differs From an Income Tax
The core distinction is between stock and flow. An income tax measures what flows into your accounts over a year: wages, dividends, capital gains from a sale. A wealth tax measures the stock — the total value of what you hold on a single date, whether or not you sold anything or earned a cent that year.
A person sitting on $50 million in appreciated stock who takes no salary and sells nothing would owe zero federal income tax in the U.S. but could owe a substantial wealth tax under a system that imposed one. That is the practical point of the tax: it reaches assets that never generate a taxable event under an income-based system.
The difference creates unique challenges. Income is relatively easy to measure because money changes hands and generates records. Wealth, especially in illiquid assets like private businesses or art collections, requires valuation, and reasonable people can disagree sharply about what something is worth when there’s no recent sale.
What Gets Counted
In countries that impose wealth taxes, the taxable base sweeps broadly. Real estate — primary homes, vacation properties, rental buildings, and undeveloped land — usually forms the largest chunk. Financial holdings such as brokerage accounts, stocks, bonds, and bank deposits are standard components. Business owners must account for their equity in private companies, including the value of equipment, inventory, and goodwill.
High-value personal property like art collections, jewelry, luxury vehicles, and aircraft is generally included and must be formally appraised. Retirement accounts and life insurance policies with a cash surrender value may also count, depending on the jurisdiction. Some countries narrow the base significantly. France, for instance, only taxes real estate and exempts financial assets entirely.
How Net Wealth Is Calculated
The formula is straightforward: total the fair market value of all assets, then subtract qualifying debts. Mortgages, business loans, and other documented liabilities reduce your taxable base, so the tax applies only to your equity. Personal debts like credit card balances are deductible in most systems if they existed before the valuation date.
Nearly all wealth tax systems pick a single snapshot date and measure everything as of that moment. France uses January 1, while other systems use the final day of the year.1impots.gouv.fr. Property Wealth Tax (IFI) for Non-Residents Who Own Property in France and/or Abroad Fair market value means the price a willing buyer and seller would agree to in an open transaction. For publicly traded stocks, that’s simple: look up the closing price. For private businesses, rare collectibles, or undeveloped land, taxpayers often hire certified appraisers, and those appraisals can run anywhere from a few thousand dollars for a simple property to $20,000 or more for a complex business valuation.
Thresholds and Rates
Every wealth tax sets an exemption threshold, a floor below which you owe nothing. The threshold keeps the tax focused on genuinely wealthy individuals rather than middle-class homeowners. Only wealth above that floor gets taxed.
Most systems use progressive brackets, similar in concept to income tax brackets. You don’t pay the top rate on your entire fortune. You pay escalating rates on each slice. If a system taxes wealth between €800,000 and €1,300,000 at 0.50% and the next bracket at 0.70%, someone with €1,500,000 in taxable wealth pays 0.50% on the first bracket and 0.70% only on the €200,000 that falls into the second bracket.
Countries That Currently Impose One
Wealth taxes were once common across Europe. At their peak in the 1990s, over a dozen OECD countries imposed them. Today only a few remain, and the systems that survive look quite different from one another.
France
France replaced its broad wealth tax with a narrower real estate wealth tax (Impôt sur la fortune immobilière, or IFI) in 2018. The IFI only applies to net real estate assets; financial investments like stocks and bonds are entirely exempt. You owe the tax if your household’s net real estate holdings exceed €1,300,000, though the rate scale actually begins calculating from €800,000.2Service Public. Calculation of the Real Estate Wealth Tax (IFI) Rates climb from 0.50% to 1.50% on real estate above €10 million. Property used for business purposes is exempt.1impots.gouv.fr. Property Wealth Tax (IFI) for Non-Residents Who Own Property in France and/or Abroad
Spain
Spain maintains two overlapping wealth taxes. The general wealth tax (Impuesto sobre el Patrimonio) covers a broad range of assets with progressive rates from 0.2% to 3.5%. On top of that, Spain made its solidarity tax on large fortunes permanent in 2025. Originally introduced as a temporary measure, the solidarity tax kicks in at roughly €3.7 million in net wealth and applies rates from 1.7% to 3.5%. The solidarity tax was designed to override regional exemptions that some autonomous communities had granted.
Norway
Norway levies wealth tax at both the municipal and national levels. The combined threshold is NOK 1,900,000, roughly $175,000 at recent exchange rates. Above that, the municipal rate is 0.35% and the state rate is 0.65%, for a combined 1.0%. Wealth above NOK 21,500,000 faces a higher state rate of 0.75%, bringing the combined top rate to 1.10%.3Skatteetaten. Net Wealth Tax and Valuation Discounts The relatively low threshold means Norway’s wealth tax reaches further down the wealth spectrum than most.
Switzerland
Switzerland taxes wealth at the cantonal level rather than nationally, so rates and exemptions vary depending on where you live. In the Canton of Zurich, wealth below CHF 75,000 is exempt, and rates climb progressively from roughly 0.025% to around 0.30% on large fortunes. Other cantons set their own schedules, and the variation influences where wealthy residents choose to settle within the country.
Colombia
Colombia imposes a wealth tax on net worth held as of March 1 each year. The general rate is 0.5% on net worth exceeding approximately 200,000 UVT, a tax unit adjusted for inflation and worth roughly $2.8 million in 2026. Financial institutions face a higher rate of 1.6%. Colombia is one of the few countries outside Europe to maintain an active wealth tax.
Why Most Countries Dropped Theirs
The bigger story isn’t which countries have wealth taxes but how many abandoned them. Austria repealed its wealth tax in 1994. Denmark and Germany followed in 1997. Finland and Iceland dropped theirs in 2006. Sweden, often held up as a model of progressive taxation, eliminated its wealth tax in 2007. France’s decision to narrow its broad wealth tax to real estate only in 2018 continued the pattern.
The reasons for repeal cluster around a few recurring problems. Wealthy individuals relocated to neighboring countries with lower or no wealth taxes; Sweden lost significant capital to lower-tax jurisdictions before its repeal. Administration costs ran high because valuing illiquid assets like private businesses and art required constant appraisal infrastructure. And the revenue raised was often modest relative to the political and economic friction the taxes created.
Wealth Tax vs. Estate Tax
People sometimes confuse wealth taxes with estate taxes because both target accumulated assets rather than income. The differences are significant. A wealth tax hits you every year while you’re alive. An estate tax hits once, at death, before assets pass to heirs. The U.S. federal estate tax exempts the first $15,000,000 per person in 2026, meaning only estates above that threshold owe anything.4Internal Revenue Service. What’s New — Estate and Gift Tax
The compounding effect of an annual wealth tax makes it far more aggressive over time than an estate tax. A 1% annual wealth tax applied over 30 years takes a much larger share of wealth than a one-time estate tax at a higher rate. Supporters see that as the point: annual taxation prevents indefinite accumulation. Critics argue it amounts to taxing the same dollar repeatedly and penalizes people who save rather than spend.
The U.S. Picture
The United States has never enacted a federal wealth tax. The debate isn’t just about policy preferences. There’s a genuine constitutional question about whether Congress has the power to impose one at all.
The Constitutional Barrier
Article I of the Constitution requires that “direct taxes” be apportioned among the states based on population. If a wealth tax is a direct tax, and most constitutional scholars argue it is, since it falls on people based on what they own rather than any transaction, then Congress would need to distribute the tax burden in proportion to each state’s share of the national population. In practice, apportionment would produce absurd results, with residents of poorer states facing higher effective rates than residents of wealthier states.
The Supreme Court had a chance to clarify the landscape in Moore v. United States (2024) but deliberately sidestepped the broader question. The Court upheld the Mandatory Repatriation Tax, which attributed a foreign corporation’s realized income to its American shareholders, but explicitly stated: “We do not decide” whether the Constitution requires income to be realized before it can be taxed.5Supreme Court of the United States. Moore v. United States, No. 22-800 That unanswered question sits at the heart of whether a federal wealth tax, which by definition taxes unrealized gains, could survive judicial review.
Recent Proposals
In March 2026, Senator Bernie Sanders and Representative Ro Khanna introduced the “Make Billionaires Pay Their Fair Share Act,” proposing a 5% annual tax on assets exceeding $1 billion. The bill targets fewer than 1,000 individuals. Earlier proposals from Senator Elizabeth Warren in 2019 and President Biden’s Billionaire Minimum Income Tax took different approaches: Warren proposed a direct wealth tax, while Biden’s version functioned more like a minimum tax on unrealized gains, attempting to sidestep the direct-tax problem. None have passed.
Several states have explored their own legislation. California’s 2026 Billionaire Tax Act, a proposed ballot measure, would impose a one-time 5% tax on the wealth of high-net-worth individuals who resided in the state as of January 1, 2026. Hawaii’s Senate Bill 313 would levy a 1% annual tax on net assets above $20 million. State-level wealth taxes face their own constitutional questions under both federal and state law, and none have been enacted as of mid-2026.
The Exit Tax
The U.S. does impose what functions as a one-time wealth tax on certain people who renounce their citizenship or give up a green card. If your net worth is $2 million or more at the time of expatriation, you’re classified as a “covered expatriate” and must pay an exit tax that treats all your assets as if they were sold at fair market value on the day before you leave. The exit tax isn’t labeled a wealth tax, but it operates like one, taxing accumulated wealth at the moment of departure rather than waiting for an actual sale.