Why the Maryland Wealth Tax Hits $5M-$50M Hardest

What Is the Maryland Wealth Tax Proposal and Who Would It Affect?

The Maryland wealth tax proposal would levy an annual tax on total net worth, not income, targeting residents above a specific asset threshold. Early legislative discussions center on a $1 billion floor, with rates ranging from 1% to 3%. But if you hold $5M to $50M in illiquid assets, the structural problems with this tax affect you more acutely than any billionaire with a diversified liquid portfolio.

Maryland already imposes a combined state and local income tax rate of up to 9.45% on high earners, according to the Tax Foundation, making it one of the heavier income-tax states in the Mid-Atlantic before any wealth tax enters the picture. Adding an annual net worth levy on top of that changes the calculus for anyone with significant assets tied to a closely held business, real estate, or private equity.

The bill's current status, sponsor list, and committee assignments are tracked through the Maryland General Assembly's official legislative database. Check there for real-time updates before making any planning decisions.

How a Maryland Wealth Tax Would Be Calculated on Investment Portfolios

Unlike income tax, a wealth tax requires annual valuation of your entire balance sheet. Publicly traded securities are straightforward. Everything else is not.

The proposed structure would likely include stocks, bonds, real estate holdings, business ownership interests, private equity stakes, cryptocurrency, and collectibles. Exemptions under discussion include primary residences up to a defined value, qualified retirement accounts, and assets tied to small businesses or family farms, though no final thresholds have been set.

The Institute on Taxation and Economic Policy has documented that valuation of illiquid assets, specifically closely held businesses, private equity, and real estate, represents the primary administrative obstacle in every state-level wealth tax proposal analyzed to date. For a business owner with $12M in enterprise value and $400K in liquid assets, the math gets uncomfortable fast.

Here is what the annual tax liability looks like across common net worth tiers at the rates currently under discussion:

These figures assume no exemptions apply. The liquidity problem is obvious: if your $25M net worth is 80% concentrated in a private business, you may owe $200,000 to $750,000 annually with no liquid assets to fund the payment without forcing a partial sale.

The Liquidity Problem: Why $5M–$50M Is the Danger Zone

This is the part that generic coverage misses entirely. The $1 billion threshold framing implies the tax only touches a handful of Bezos-tier households. The real risk sits in the $5M to $50M range, where wealth is often concentrated and illiquid.

A household with $8M in net worth held primarily in a closely held business or a portfolio of investment properties could face an annual wealth tax bill of $80,000 to $240,000 with no obvious funding source. Billionaires typically hold enough liquid securities to write the check. A founder who has not yet taken a liquidity event does not.

The Tax Policy Center has noted that asset-rich, cash-poor taxpayers face the most severe enforcement challenges under any wealth tax structure. Forced asset sales at unfavorable valuations are the predictable outcome, particularly in illiquid markets or during periods of credit tightening.

This is not a theoretical concern. It is the core structural flaw that caused several European wealth taxes to collapse under their own weight. The Federal Reserve's Survey of Consumer Finances confirms that the top 1% of U.S. households hold approximately 30% of total household net worth, but that concentration is heavily skewed toward illiquid private assets at the lower end of that cohort.

Wealth management strategies for high net worth individuals that worked under an income-only tax regime need to be re-examined if annual net worth becomes a taxable event.

How Maryland Compares to Neighboring States for High-Net-Worth Residents

Maryland's wealthiest ZIP codes, including Potomac, Bethesda, and Chevy Chase, sit within a short drive of two jurisdictions with meaningfully different tax profiles. That geographic reality makes Maryland uniquely vulnerable to intra-regional wealth migration in a way that California or New York is not.

According to Hoover Institution analysis of IRS migration data, high-income taxpayers are statistically more likely to relocate when marginal rates increase, with Florida and Texas as primary destinations for departing Mid-Atlantic residents. But for a Bethesda resident, the friction cost of moving to McLean, Virginia is far lower than the friction cost of moving to Naples, Florida.

Virginia's 5.75% top rate with no wealth tax proposal and no estate tax makes it the obvious short-distance alternative. A Maryland resident in the $5M to $50M range who successfully establishes Virginia domicile could eliminate both the wealth tax exposure and reduce their income tax rate by roughly 3.7 percentage points simultaneously.

Similar wealth tax proposals in neighboring states show how regional tax competition accelerates when one jurisdiction moves first.

Should You Move Out of Maryland to Avoid the Wealth Tax?

The relocation math is compelling on paper. Executing it correctly is harder than most people assume, and Maryland knows it.

Maryland is known for aggressively auditing high-net-worth individuals who claim to have changed domicile. A failed domicile change can result in owing taxes in both Maryland and the new state simultaneously, which is the worst possible outcome.

To successfully establish domicile in a new state, you generally need to satisfy a multi-factor legal test. The core elements include spending more than 183 days outside Maryland in the calendar year, changing your voter registration, updating your driver's license, establishing a new primary residence, and demonstrating that your primary social and economic connections have shifted. Moving your club memberships, your primary banking relationships, and your professional advisors matters. Courts and tax authorities look at the totality of facts, not just where you slept.

If you are considering relocation as a primary strategy, engage a tax attorney who specializes in domicile disputes before you make any moves, not after. The planning needs to precede the action by at least one full tax year to be defensible.

Tax planning considerations for FATFIRE residents in high-tax states cover the domicile change process in more detail, including documentation checklists and audit red flags.

Legal Strategies to Minimize Exposure Before Any Legislation Passes

The time to structure is now, not after the bill passes. Tax attorneys are already discussing several approaches in the context of state wealth tax exposure, and the window for some of them closes once legislation is enacted.

Irrevocable trust structures. Depending on how the final legislation defines "taxable wealth," assets held in certain irrevocable trusts may be excluded from the grantor's taxable estate for wealth tax purposes. The specifics depend entirely on the statutory language, which has not been finalized.

Family limited partnerships (FLPs). FLPs have long been used to apply valuation discounts to transferred assets for estate tax purposes. The same logic may apply to wealth tax calculations if the legislation adopts a fair market value standard, since minority interests in FLPs typically trade at a 20% to 40% discount to net asset value.

Qualified Opportunity Zone (QOZ) investments. QOZ investments defer and potentially reduce capital gains, and depending on how the wealth tax legislation treats deferred gain, they may offer additional planning value.

Charitable structures. Charitable remainder trusts (CRTs) and donor-advised funds (DAFs) can remove assets from your taxable balance sheet while preserving income streams and generating current deductions.

None of these strategies should be implemented without legal counsel familiar with both Maryland law and the current legislative draft. Advanced estate planning strategies that overlap with wealth tax mitigation deserve a dedicated conversation with your estate attorney before any bill reaches the governor's desk.

Family office structures for wealth preservation offer additional entity-level planning options worth exploring if your net worth is above $20M.

How Maryland's Proposal Compares to Other State Wealth Tax Attempts

Maryland is not the first state to try this. The track record of comparable proposals is instructive.

Washington's enacted capital gains tax is the closest U.S. precedent to a realized-gains wealth tax, though it targets a narrower base. California's broader wealth tax proposal died partly due to constitutional concerns and lobbying from the technology sector. Unrealized capital gains taxation approaches have an even shorter track record at the state level.

The American Bar Association has raised constitutional questions about state-level wealth taxes, particularly regarding valuation of intangible assets and potential Commerce Clause conflicts when taxing out-of-state holdings. A Maryland resident with a private equity stake in a Delaware-incorporated company, for example, creates immediate jurisdictional complexity.

What International Wealth Tax Models Actually Show

The European experience is the most relevant data set, and it is not encouraging for revenue projections.

The Tax Foundation reports that twelve European countries had wealth taxes in 1990. By 2023, only Norway, Spain, and Switzerland retained them. France's ISF wealth tax, implemented in 1982 and repealed in 2017, is the most cited case study. French Senate reporting estimated that the ISF caused capital outflows of over €35 billion and the departure of roughly 10,000 millionaires between 2000 and 2012.

NBER research on Sweden's wealth tax found significant behavioral responses including asset relocation and emigration among high-net-worth individuals, with revenue yields substantially below initial projections. The pattern repeated across Germany, Sweden, and Finland before each country repealed its wealth tax.

The common failure modes were: revenue underperformance due to behavioral responses, administrative costs that consumed a disproportionate share of collections, and constitutional or legal challenges that complicated enforcement. Maryland lawmakers who cite revenue projections without accounting for behavioral responses are working from an incomplete model.

International wealth tax models offer additional case studies on how different design choices, particularly around illiquid asset treatment, affected outcomes.

How Illiquid Assets Would Be Treated Under the Proposed Tax

This is where the legislative details matter most and where the current proposal is least defined.

Private equity stakes, closely held business interests, and real estate portfolios do not have a daily market price. Any wealth tax requires the state to establish a valuation methodology for these assets, and the methodology chosen determines both the tax burden and the compliance cost.

Common approaches include book value, capitalized earnings, or discounted cash flow analysis. Each produces a different number, and each creates different incentives. A capitalized earnings approach, for example, could produce wildly different valuations for the same business depending on the discount rate applied.

For a Maryland business owner with a $15M enterprise value, the difference between a 15x and a 12x earnings multiple in the state's valuation formula could mean a $45,000 to $90,000 swing in annual tax liability at a 2% rate. That is not a rounding error.

Private wealth banking solutions that include annual balance sheet reporting and asset valuation services will become more relevant if wealth tax legislation advances, since the documentation burden alone will require institutional support.

The Revenue Projection Problem

Proponents cite billions in annual revenue. The historical record suggests significant skepticism is warranted.

Behavioral responses are the primary variable that revenue projections consistently underweight. When France's ISF was in force, the estimated revenue consistently fell short of projections because high-net-worth individuals restructured assets, relocated, or shifted holdings into exempt categories faster than the legislation anticipated.

Maryland's tax base is also relatively concentrated. A small number of households account for a disproportionate share of any potential wealth tax revenue. If even a fraction of those households successfully change domicile or restructure assets, the revenue impact is material. The Hoover Institution's analysis of IRS migration data confirms that high-income taxpayers respond to rate increases with statistically significant relocation behavior.

The administrative cost side of the ledger is also underexamined. Accurately valuing illiquid assets across thousands of high-net-worth households requires significant state investment in valuation infrastructure, legal capacity for disputes, and audit resources. Those costs reduce net revenue and are rarely included in headline projections.

Investment strategies to optimize wealth in a higher-tax environment necessarily shift toward tax-efficient structures, which further erodes the projected tax base over time.

What to Do Now If You Are a Maryland Resident with $5M or More

The bill has not passed. That is the most important fact. But the planning window is open now, and it closes the moment legislation is enacted.

The practical checklist for Maryland residents in the $5M to $100M range:

1. Map your balance sheet by liquidity. Identify what percentage of your net worth is liquid versus illiquid. If illiquid assets exceed 60% of your net worth, you have a funding problem at any rate above 1%.

2. Review entity structures. Have your tax attorney assess whether your current business and real estate structures would be valued at a discount under likely wealth tax valuation methodologies.

3. Model the domicile change. If Virginia or Florida is a realistic option given your lifestyle and professional commitments, get a legal opinion on what a defensible domicile change requires in your specific situation.

4. Evaluate irrevocable trust and FLP structures. The window for certain transfers closes if the legislation defines taxable wealth broadly and includes a lookback period.

5. Monitor the legislative calendar. Track the bill through the Maryland General Assembly's database and retain a Maryland tax attorney who follows the committee process.

Wealth thresholds among top earners provide useful context for understanding where the Maryland proposal sits relative to national wealth distribution data.

The standard advice written for retail investors does not apply here. A 2% annual levy on a concentrated, illiquid position is not a marginal inconvenience. For a significant portion of the FATFIRE audience in Maryland, it is an existential planning question that deserves the same rigor you applied to building the wealth in the first place.

References

• Tax Foundation -- "Wealth Taxes in Europe and Lessons for the United States" (2023)
• Tax Foundation -- "State Individual Income Tax Rates and Brackets" (2024)
• National Bureau of Economic Research (NBER) -- "Behavioral Responses to Wealth Taxes: Evidence from Sweden" (2017)
• Maryland General Assembly -- "Maryland Legislative Services - Bill Search and Status" (2024)
• Institute on Taxation and Economic Policy (ITEP) -- "Wealth Tax Proposals: Design Considerations and Revenue Estimates" (2023)
• Federal Reserve Board -- "Survey of Consumer Finances" (2023)
• American Bar Association -- "State Wealth Taxes: Constitutional and Practical Challenges" (2022)
• Hoover Institution -- "The Migratory Response to High State Taxes: Evidence from IRS Migration Data" (2022)
• Urban-Brookings Tax Policy Center -- "Issues and Options for a Wealth Tax" (2023)