The "Millionaire Tax" Wave: Is Connecticut the Next Domino to Fall?

As Washington State moves to tax high-earners, all eyes are on Hartford. For Connecticut homeowners and investors, the 2026 legislative session could signal a major shift in property and income tax policy. For years, the conversation around "taxing the rich" was largely confined to federal halls of power. But recently, the battleground has shifted to the state level. In a historic move, Washington State has officially implemented a new "Millionaire Tax," and as they follow in the footsteps of Massachusetts and Minnesota, the national domino effect is becoming harder to ignore.

The "Fair Share" Movement Gains Momentum

Washington isn't an outlier; it’s part of a growing trend where states are re-evaluating their revenue structures. Here is a look at how nearby states are currently positioned:

• Massachusetts: Their 4% surtax on income over $1 million has generated over $2 billion for education and transit, prompting similar proposals across the Northeast.
• New York & New Jersey: Both states maintain high top-tier tax brackets, often serving as the benchmark for Connecticut's own legislative debates.
• Vermont: Currently exploring a wealth tax on unrealized gains, pushing the boundaries of state-level taxation even further.

The Connecticut Context: HB 5133 and SB 101

In Hartford, the debate is no longer theoretical. Two major pieces of legislation are currently under the microscope in the 2026 session that directly impact the real estate community:

• House Bill 5133: A proposal to increase the highest marginal income tax rate from 6.99% to 7.99%.
• Senate Bill 101 (The "Mansion Tax"): Perhaps the most controversial, this bill seeks to establish a state-wide property tax on residential real estate assessed above $3 million.
• Capital Gains Surcharge: Discussions are also underway regarding a 1.75% surcharge on capital gains for the state's top earners.

What This Means for the CT Housing Market

As a Realtor, I’m watching how these proposals influence buyer sentiment and inventory. While some fear "wealth flight," the reality is often more nuanced. We must weigh these potential taxes against the factors that make Connecticut a premier destination: