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Tax data

Current rules, public receipts.

Tax year 2026 data verified against IRS Rev. Proc. 2025-32, IRS Notice 2025-67, SSA 2026, CMS 2026. Latest imported PolicyEngine US version: bug109-aca-fpl400-prior-year.

Freshness at a glance

Live metadata from active, anonymous-readable rules. Refreshed hourly.

Last active-rule update

Tax years covered

24

Active rule values

68,554

PolicyEngine US

bug109-aca-fpl400-prior-year

Provenance mix

ACTUAL
45,303
PROJECTED
12,121
EXTRAPOLATED
8,710
MANUAL
2,420

Recent rule changes

Public admin run records are restricted, so this log groups active rule values by their UTC creation date.

  1. 74 active rule values added or refreshed

  2. 7 active rule values added or refreshed

  3. 6 active rule values added or refreshed

  4. 7 active rule values added or refreshed

  5. 13 active rule values added or refreshed

  6. 2,088 active rule values added or refreshed

Primary-source citations by rule family

Each row shows the first populated citation on the newest active 2026 rule in that family. Links appear only when the live citation text includes an HTTP address.

Representative primary-source citations for major tax rule families
Rule familyLive source citationProvenance
Tax bracketsstate.income_tax.bracket.rateGA DOR 2025 IT-511 Tax Rate Schedule bracket 1ACTUAL
Deductionsfederal.deductions.pmi.phaseout_increment26 U.S.C. §163(h)(3)(E)(ii) (OBBBA §70108) — deduction reduced 10% per $500 (or fraction) of AGI over start, MFSMANUAL
Contribution limitscontribution_limits.hsa_catch_up_55plusIRS — Cost-of-Living Adjustments for Retirement Items (IRC §415(d) annual indexing)MANUAL
Social Securityssa.pia.bend_pointSSA OACT bend points table — 2026 second bend point $7,749 (seed 016 carried the 2025 value $7,391)MANUAL
Medicare / IRMAAhealthcare.irmaa.tier.part_d_monthlyCMS 2026 fact sheet (2025-11-14) / SSA POMS HI 01101.020 — 2026 Part D IRMAA tier surcharge (audit 2026-07-21: seed 013 carried 2025-vintage values)MANUAL
ACAhealthcare.aca.fpl_400ACA §36B(c)(2)(B) 4× multiplier × HHS 2025 (PRIOR-year) FPG 2-person ($21,150). 2026 coverage uses the 2025 guidelines (IRC §36B / 26 CFR 1.36B-1(h)).ACTUAL
RunwayFI LLC · United States · How tax projections work