The Millionaire Tax Movement: A 2026 Roundup of State and Federal Trends
High-net-worth taxation is experiencing a significant shift across the United States. As state governments look for sustainable ways to fund infrastructure, education, and healthcare, the focus has increasingly turned toward high earners, luxury real estate, and billionaire assets. While some states are doubling down on surtaxes, others face legal hurdles or legislative stalemates. For business owners and real estate investors, understanding these shifts is essential for long-term tax strategy and cash flow planning.
Here is a comprehensive look at the current status of millionaire and wealth tax initiatives nationwide.
California: The 2026 Billionaire Tax Act
California continues to lead the conversation with one of the most aggressive proposals in the country. Advocates for the 2026 Billionaire Tax Act have successfully gathered the signatures required to place a 5% one-time wealth tax on the November 2026 ballot. This measure specifically targets residents with a net worth exceeding $1 billion. While supporters argue the revenue is critical for stabilizing healthcare programs, many tech leaders and policymakers, including Governor Gavin Newsom, have expressed concerns regarding potential wealth flight and the state's long-term competitive standing.
Maine: Implementing the Millionaire Surcharge
Maine has transitioned from legislative debate to active law. In April 2026, Governor Janet Mills signed a budget that introduced a 2% surcharge on individual income exceeding $1 million. For those filing as head of household or jointly, the threshold is set at $1.5 million. This tax is retroactive to January 1, 2026, and is projected to generate nearly $100 million annually to support public services. This move represents a significant shift in the state's approach to high-income earners.
Illinois: Millionaire Tax Push Loses Momentum
In Illinois, the momentum for a new millionaire tax has stalled. A proposed constitutional amendment aimed to give voters the chance to approve an additional 3% tax on income over $1 million. However, the measure failed to secure the necessary support within the Illinois House. As a result, it is highly unlikely that voters will see this initiative on the 2026 ballot, providing a temporary reprieve for high-income earners in the state who have been monitoring the proposal closely.
New York: Targeting Luxury Real Estate with the Pied-à-Terre Tax
New York is shifting its focus toward luxury real estate rather than traditional income. Governor Kathy Hochul has introduced a pied-à-terre tax proposal aimed at second homes in New York City with valuations of $5 million or more. The goal is to levy an annual surcharge on nonresident owners of ultra-luxury properties. While proponents view this as a way to capitalize on luxury investment vehicles, critics anticipate legal challenges regarding property valuations and nonresident tax jurisdiction.
Washington: High-Income Tax Faces Legal Scrutiny
Washington state has historically avoided a traditional state income tax, but that landscape changed in March 2026. Governor Bob Ferguson signed a new 9.9% tax on income exceeding $1 million, scheduled to take effect in 2028. The law is intended to rebalance the state's tax code and bolster public funding. However, opponents have already initiated legal action, arguing that the tax violates the state’s constitution, which has historically treated income as property subject to specific limitations.
Massachusetts: Analyzing the Fair Share Surtax
Massachusetts remains a vital test case for the impact of millionaire taxes on migration. Since 2023, the state has enforced a 4% surtax on taxable income above a specified threshold, with funds earmarked for transportation and education. While the revenue collections have been robust, economists and tax advisors continue to analyze whether the surtax is influencing the relocation of high-net-worth individuals to lower-tax jurisdictions.
Oregon and Vermont: Wealth and High-Bracket Proposals
Oregon may be the next state to let voters decide on a wealth tax. The "Very Rich Pay Their Fair Share Act" is currently gathering support for the 2026 ballot, seeking to tax assets like stock options and business interests. Meanwhile, Vermont legislators are debating a new top income tax bracket for the state's highest earners. One proposal suggests a rate as high as 13.3% for joint filers with income over $586,000, which would place Vermont among the highest-taxed states in the country.
Connecticut and Maryland: The Push for Net Worth Taxes
Advocacy for billionaire taxes is growing in Connecticut, where protesters have called for broader tax reform targeting high-value assets. While no law has passed yet, progressive lawmakers are floating several proposals. In Maryland, House Bill 1238 was introduced to create a one-time tax on residents with a net worth over $1 billion. These proceeds would be funneled into a state investment fund, though the bill currently remains in the legislative review phase.
Rhode Island and New Jersey: Real Estate Surcharges
Rhode Island recently enacted a surcharge on high-end properties, often referred to as the “Taylor Swift Tax.” Starting July 1, 2026, a 0.5% annual surcharge will apply to the portion of assessed value above $1 million for non-owner-occupied homes used less than half the year. Primary residences remain exempt.
In our home state of New Jersey, the millionaire tax conversation is heavily tied to real estate transactions. Following the 2025 expansion of the mansion tax, sales exceeding $3.5 million are now subject to a 3.5% tax. This tiered system replaces the old flat 1% rate, making strategic multi-entity planning and real estate holding structures more important than ever for Garden State investors.
Hawaii and the Federal Landscape
Hawaii lawmakers debated various tax hikes in 2026, including property tax increases for homes valued over $4 million. While many of these measures stalled in the Senate, the conversation regarding housing affordability and tax revenue remains active. On a federal level, the Ultra-Millionaire Tax Act has been reintroduced, proposing a 2% annual tax on net worth over $50 million. Although it faces significant political resistance, it remains a central pillar of the national dialogue on wealth inequality.
Planning Ahead in an Evolving Tax Environment
The term "millionaire tax" has evolved to include a variety of mechanisms: income surtaxes, wealth taxes, mansion taxes, and luxury property surcharges. Whether it is Maine's new income surcharge or the real estate focus in New Jersey and New York, the message for taxpayers is clear: policy is changing rapidly.
At Lizza & Carullo CPAs & Advisors, we specialize in helping business owners navigate these complexities through proactive tax strategy and financial structure optimization. If you are concerned about how these state-level changes might impact your cash flow or real estate portfolio, it is time to move from reacting to planning. Contact us today to explore how our advisory programs can help you maintain clarity and control over your financial future.
State tax policy is subject to rapid change. This information is current as of April 29, 2026.
The broader economic implications of these state-level movements extend far beyond the immediate tax bill. One of the most significant challenges for high-earning business owners is the volatility these proposals introduce into long-term capital allocation. When states like Oregon or California debate taxing unrealized gains or total net worth, it forces a shift in how entrepreneurs view their business equity. Instead of focusing solely on growth and eventual exit, owners must now consider the annual carrying cost of their success. This environment necessitates a more disciplined approach to liquidity management, ensuring that enough cash flow is available to cover potential wealth-based levies without stripping the business of its operating capital.
Furthermore, the rise of mansion taxes and second-home surcharges, like those seen in New Jersey and Rhode Island, reflects a growing trend of using real estate as a proxy for wealth. For real estate-driven business owners, this means that the traditional buy and hold strategy must be re-evaluated through the lens of increased transaction costs and annual surcharges. In New Jersey, the tiered system for sales over three and a half million dollars adds a layer of complexity to exit strategies, potentially affecting the timing of property divestitures. It is no longer enough to simply monitor market values; investors must also keep a pulse on the legislative climate of the specific municipalities and states where their assets are located.
Additionally, the administrative burden of tracking multi-state nexus cannot be overstated. As more states adopt unique high-earner surcharges, the risk of double taxation or missed filing requirements increases. This is why establishing a rigorous month-end discipline and maintaining clean bookkeeping oversight is paramount. For the service-based entrepreneur or the scaling startup, these tax updates are a reminder that financial infrastructure is just as important as the product or service being sold. By integrating tax strategy into the core operational workflow, businesses can better navigate the uncertainties of a shifting policy landscape and make proactive decisions with confidence.
Finally, the interplay between state surtaxes and federal policy remains a critical area for strategic planning. With the potential for federal wealth tax legislation always on the horizon, high-net-worth individuals must look for synergies in their planning efforts. For example, restructuring an entity to be more tax-efficient at the state level may also provide benefits under federal rules regarding passive income or qualified business income deductions. By maintaining a clean financial infrastructure and utilizing KPI dashboards to monitor the impact of tax changes in real-time, business owners can transform these legislative challenges into opportunities for greater organizational efficiency. The goal is to move beyond simple compliance and toward a model of financial control where every decision is backed by accurate data and a clear vision for the future.
Want tax & accounting tips and insights?
Sign up for our newsletter.