Who is affected and how:

• Highest-income taxpayers / highly compensated individuals: Directly affected — the core change creates a new minimum tax obligation that will increase tax liability for taxpayers whose current federal tax falls below the new floor. The exact impact depends on the statutory formula, thresholds, and interactions with existing credits and deductions (not detailed in the summary provided).

• Taxpayers and tax preparers generally: Moderately affected — taxpayers near the top of the income distribution and their advisors will need to calculate the new minimum tax and may change tax planning strategies. Tax preparers must update software and compliance procedures.

• Internal Revenue Service and federal tax administration: Moderately affected — the IRS must implement rules, guidance, forms, and processing changes to administer the new statutory provision.

• Federal budget and deficit: Benefited — the bill is presented as increasing revenue and reducing the deficit by billions per year, though actual amounts depend on legislative details and enforcement.

• Businesses and other taxpayers not in the top income tiers: Largely unaffected directly — unless provisions extend to passthrough income allocations or otherwise alter business tax items in detailed rules not included here. The legislation as summarized targets high‑income taxpayers rather than broad business tax changes.

Potential secondary effects:

• Tax planning: High‑income taxpayers may alter timing of income, realization events, or use of credits and deductions in response to a new minimum tax.
• Compliance costs: Software providers, tax preparers, and the IRS will incur one-time and recurring costs to adjust for the new computation.

Uncertainties:

• The summary does not provide the technical mechanics (rates, thresholds, credit interactions), so the magnitude of effects on specific taxpayers and revenue collections cannot be precisely estimated from the provided text alone.