Medicare and Social Security Fair Share Act
- Bill Number
- H.R. 3271
- Origin Chamber
- House
- Congress
- 119th Congress, Session 1
- Policy Area
- Taxation
- Status
- Introduced
- Latest Action
- 2025-05-08: Referred to the House Committee on Ways and Means.
- Last Updated
- 2026-06-11T04:11:22Z
AI-Generated Summary
Purpose
The Medicare and Social Security Fair Share Act (H.R. 3271) aims to boost funding for Social Security and Medicare programs by increasing taxes on high-income individuals. It does this by expanding the taxable base for payroll taxes, adding new Medicare surtaxes on high wages and self-employment income, and modifying taxes on investment income to capture more revenue from wealthy taxpayers. The goal is to direct these additional funds to the trust funds that support retirement, disability, and health benefits under these programs.
Key Provisions
- Expansion of Social Security Payroll Tax Base: Raises the maximum earnings subject to Social Security taxes (currently capped at a lower amount, like around $168,600 in recent years) to $400,000 per year for employees and employers. Wages between the current cap and $400,000 become taxable.
- New Medicare Surtax on High Wages: Imposes an additional 1.2% tax on Medicare wages exceeding $400,000 for single filers or $500,000 for joint filers (half for married filing separately). Employers withhold this on wages over $400,000 but do not consider a spouse's income; unwithheld amounts are paid directly by the employee.
- Adjustments for Self-Employment Income: Applies similar changes to self-employed individuals, taxing net earnings from self-employment up to $400,000 beyond the current cap for Social Security portions, and adding the 1.2% Medicare surtax on income over the same thresholds (coordinated with any wage income to avoid double-taxing).
- Expansion of Net Investment Income Tax (NIIT): Increases the NIIT rate and broadens its scope for high earners (modified adjusted gross income over $400,000 single/$500,000 joint). It now taxes "specified net income," which includes more types of business and passive income previously excluded (e.g., certain trade or business income not involving active participation). A phase-in applies for the expansion, and an additional 13.6% rate kicks in on income above thresholds. For trusts and estates, the rate rises to 17.4% on undistributed income.
- Revenue Allocation to Trust Funds: Directs 71.3% of the expanded NIIT revenue to the Social Security Old-Age and Survivors Trust Fund, 10.3% to the Disability Insurance Trust Fund, and 28.7% to the Medicare Hospital Insurance Trust Fund. These changes apply starting after December 31, 2025.
- Effective Dates: Payroll and self-employment changes start January 1 of the first full year after enactment; NIIT modifications begin for tax years after December 31, 2025. Includes rules for successor employers (e.g., in business acquisitions) and clarifications on foreign income and losses.
Significant Changes to Existing Law
- Payroll Taxes (FICA): Removes the exemption for Social Security taxes on earnings above the annual cap up to $400,000, effectively making the tax more progressive by taxing higher earners more. Adds a new tier to the existing Additional Medicare Tax (currently 0.9% on wages over $200,000/$250,000), creating a 1.2% surtax on even higher amounts without an upper limit.
- Self-Employment Taxes (SECA): Mirrors FICA changes, ensuring self-employed people face the same expanded base and surtax, with adjustments to prevent overlap with wage taxes. Eliminates deductions for the new surtax portions.
- Net Investment Income Tax: Expands what counts as taxable investment income by including more passive business earnings and certain foreign income (e.g., from controlled foreign corporations), while excluding items already taxed under payroll/self-employment rules. Increases rates significantly for high earners and trusts/estates, and adds phase-in rules and special treatments for pre-2026 foreign earnings.
- Trust Fund Transfers: Amends the Social Security Act to allocate a portion of NIIT revenues directly to the programs' trust funds, rather than general revenue, tying investment tax proceeds explicitly to entitlement funding.
Potential Impacts
- On Government Agencies: The IRS will need to update withholding systems, tax forms, and reporting for the expanded taxes, potentially increasing administrative costs short-term but generating billions in new revenue long-term. Social Security Administration (SSA) and Centers for Medicare & Medicaid Services (CMS) could see extended solvency for trust funds (e.g., delaying Medicare insolvency from projected 2036 and Social Security from 2034), reducing pressure on federal budgets without benefit cuts.
- On Citizens: High-income workers (e.g., executives, professionals earning over $400,000) and self-employed individuals will pay more in taxes, possibly affecting savings or retirement planning. Beneficiaries of Social Security and Medicare (mostly retirees, disabled people, and low/middle-income seniors) could indirectly benefit from stronger program funding. Lower- and middle-income earners see no change.
- On International Relations: Minimal direct impact, though expansions to taxing foreign-sourced income (e.g., from overseas investments) could affect U.S. taxpayers with global assets, potentially influencing multinational business decisions or tax treaties.
Main Stakeholders Affected
- High-Income Individuals and Families: Those with wages, self-employment income, or investments over $400,000/$500,000 thresholds, facing higher effective tax rates (up to several percentage points more on affected income).
- Self-Employed and Business Owners: Gig workers, freelancers, and small business owners with high earnings, who must track and pay expanded self-employment taxes.
- Trusts and Estates: Wealthy estates or irrevocable trusts distributing investment income, hit with a near-doubling of the NIIT rate.
- Employers: Larger companies with high-paid employees, responsible for withholding new surtaxes and handling successor rules in mergers/acquisitions.
- Social Security and Medicare Beneficiaries: Over 70 million Americans relying on these programs, who gain from increased funding stability.
- Federal Government: Treasury, IRS, SSA, and CMS, which manage tax collection and benefit distribution.
Notable Legal, Constitutional, or Political Implications
- Legal: The bill stays within Congress's broad authority under the Constitution (Article I, Section 8) to levy taxes for general welfare, including entitlements like Social Security and Medicare. It avoids retroactivity by setting future effective dates and includes coordination rules to prevent double taxation, reducing litigation risks. Potential challenges could arise over NIIT expansions (e.g., what qualifies as "specified net income"), but courts have upheld similar progressive tax structures (e.g., Affordable Care Act's Medicare surtax).
- Constitutional: No major issues; it promotes equal protection by targeting high earners progressively, aligning with precedents like the 16th Amendment's income tax provisions.
- Political: Represents a shift toward funding entitlements through wealthier taxpayers rather than broad-based hikes or benefit reductions, appealing to progressives but likely facing opposition from conservatives and business groups over "tax increases on success." Could spark debates on fiscal sustainability, income inequality, and the balance between payroll and investment taxes, influencing midterm elections or future budget negotiations.
This summary was generated by AI and may contain inaccuracies. Refer to the official source document for the authoritative text.
Sponsor
Rep. Boyle, Brendan F. [D-PA-2]
Recent Actions
- 2025-05-08: Referred to the House Committee on Ways and Means.
- 2025-05-08: Introduced in House
- 2025-05-08: Introduced in House
Bill Versions
- Medicare and Social Security Fair Share Act — issued 2025-05-08 — PDF (17 pages)