PolicyBrief
S. 4306
119th CongressApr 15th 2026
Millionaires Surtax Act
IN COMMITTEE

This bill establishes a new 10% surtax on the income of high-earning individuals exceeding specified modified adjusted gross income thresholds.

Chris Van Hollen
D

Chris Van Hollen

Senator

MD

LEGISLATION

New 'Millionaires Surtax' Adds 10% Tax on Incomes Over $1M Starting 2025

Alright, let's talk taxes. This bill, officially dubbed the "Millionaires Surtax Act," is looking to add a new 10% tax on the highest earners. Think of it as an extra layer on top of what's already being paid. This isn't some distant future thing either; it kicks in for tax years starting after December 31, 2024.

The New Math for High Earners

So, what's the deal? If your modified adjusted gross income (that's basically your income before some deductions) goes over $1 million as a single filer, or $2 million if you're married filing jointly, you're looking at an additional 10% tax on the income above those thresholds. For example, if a single filer makes $1.2 million, that extra 10% would apply to the $200,000 above the $1 million mark. This isn't just for your regular paycheck; it includes income from trusts and estates too, as outlined in Section 1 and Section 2 of the bill. It's a straight-up additional tax, not a replacement for anything else.

Who's Feeling the Pinch and Why It Matters

This new surtax directly targets individuals with high incomes. If you're an entrepreneur, a high-level executive, or someone with significant investment income pushing you past that $1 million or $2 million mark, this means a bigger tax bill. The bill specifies that this surcharge isn't treated as a regular income tax for calculating credits or the alternative minimum tax, which keeps things from getting too tangled with other tax breaks. However, a key detail here is that the $1 million and $2 million thresholds are not adjusted for inflation. This means that over time, as the cost of living and incomes naturally rise, more people could find themselves crossing into this surtax bracket without necessarily feeling like they've hit the 'millionaire' status the bill intends to target. For folks running businesses or managing investments, this could influence decisions about how income is structured or where investments are made.

The Real-World Ripple Effect

For the government, this is a clear play for more revenue. The hope is that this extra cash can be used for public services or to chip away at the national debt. For those affected, the impact is pretty straightforward: less take-home income from their highest earnings. If you're a business owner making a substantial profit, this could mean less capital available for reinvestment or expansion. For individuals, it could alter financial planning or charitable giving strategies. The bill also has specific rules for situations like non-resident aliens or U.S. citizens living abroad, ensuring that the surtax applies only to their U.S.-taxable income or adjusts for foreign earned income exclusions, as detailed in Section 2. It’s a targeted approach, but one that could have broader implications for how high earners structure their financial lives.