Congress raises taxes on the wealthy to shore up Social Security and Medicare

What it does

This bill raises payroll and investment taxes on high-income earners to shore up Social Security and Medicare. It lifts the Social Security wage cap from its current level to $400,000 (and $500,000 for joint filers), meaning high earners pay Social Security tax on more of their income; adds a 1.2% additional Medicare tax on wages and self-employment income above $400,000/$500,000; and imposes a new 13.6% tax on investment income (capital gains, dividends, etc.) for high earners, with revenues split among Social Security and Medicare trust funds. The net effect is that wealthy individuals and families pay more in taxes, while the trust funds receive dedicated new revenue.

Why we flagged it

The bill's core mechanism is straightforward: raise taxes on high earners and investment income, dedicate the proceeds to Social Security and Medicare trust funds. The title accurately describes the function—a 'fair share' tax on high incomes to support entitlements.

What the text implies

• Investment income taxation (Section 4) is significantly broader than typical capital-gains treatment—it includes passive business income and foreign investment, potentially affecting real-estate investors, business owners, and those with international holdings more broadly than headline suggests.
• The 13.6% net investment income tax is in addition to existing 3.8% NIIT and ordinary income tax, creating marginal rates on investment income that may exceed 50% for top earners in high-tax states, potentially affecting investment behavior and capital allocation.

The full analysis lists 4 implications of this text.

Who stands to gain

Social Security trust fund (OASI/DI); Medicare Hospital Insurance trust fund; Beneficiaries of Social Security and Medicare (broad public)