TaxMath
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·6 min read·Federal
by TaxMath

The One Big Beautiful Bill: What Actually Changed for 2026

Sources

Ordered by authority — the law and the agencies administering it first. Every link is checked for rot; see all sources.

  1. Primary law
    26 U.S.C. §164 — TaxesOffice of the Law Revision Counsel · checked 2026-08-02The SALT deduction, its dollar limitation, and the limitation’s sunset.Other articles citing this source
  2. Primary law
    H.R. 1 — One Big Beautiful Bill Act, 119th CongressU.S. Congress · published 2025-07-04 · checked 2026-08-02Bill text, section-by-section summary, and legislative history.Other articles citing this source
  3. Primary law
    One Big Beautiful Bill Act, Public Law 119-21U.S. Government Publishing Office · published 2025-07-04 · checked 2026-08-02The Act as enacted — controlling text for every OBBB provision described on this site.Other articles citing this source
  4. Government
    IRS releases tax inflation adjustments for tax year 2026, including amendments from the One Big Beautiful BillInternal Revenue Service · checked 2026-08-02Source of record for the 2026 brackets, standard deduction, AMT exemption, and estate exclusion.Other articles citing this source
  5. Government
    Schedule 1-A, Additional Deductions: what to know about the new formInternal Revenue Service · checked 2026-08-02What each line of Schedule 1-A covers and how the total flows to Form 1040.Other articles citing this source
  6. Government
    Tax deductions for working Americans and seniorsInternal Revenue Service · checked 2026-08-02IRS summary of the tips, overtime, car loan interest, and senior deductions and their limits.Other articles citing this source
  7. Government
    Treasury, IRS provide guidance on the new deduction for car loan interestInternal Revenue Service · checked 2026-08-02Qualified vehicle definition, the final assembly test, lender reporting, and what is excluded.Other articles citing this source
  8. Government
    Trump AccountsInternal Revenue Service · checked 2026-08-02Eligibility, contribution timing, investment restrictions, and distribution rules.Other articles citing this source
  9. Government
    Working Families Tax Cuts — individuals and workersInternal Revenue Service · checked 2026-08-02Per-provision eligibility, caps, and phase-outs for the individual OBBB deductions.Other articles citing this source
  10. Government
    Working Families Tax Cuts: One, Big, Beautiful Bill provisionsInternal Revenue Service · checked 2026-08-02The IRS hub collecting every OBBB implementation page.Other articles citing this source
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