September 23, 2026
Mail ballots go out October 5. Prop 3 removes the 2030 end date on California's 10.3% to 12.3% rates, which reach single filers above about $371,000 and couples above $743,000.
The IRS said farmers and ranchers forced to sell breeding, dairy, or draft livestock because of drought may get more time to replace animals and defer tax on gains in most of the country.
The IRS said some SECURE and SECURE 2.0 retirement plan amendments may be due after Dec. 31, 2026, depending on when the agency places a provision on its Required Amendments List.
2025 raised retroactively by OBBBA from $15,000 (Rev. Proc. 2025-32 sec. 3.01 removes Rev. Proc. 2024-40 sec. 2.15(1)).
See the table
| August 31, 2026 | Massachusetts elective 4% pass-through entity surtax (Chapter 63E) |
| July 1, 2026 | Rhode Island non-owner-occupied property tax on homes over $1 million |
| June 17, 2026 | California Proposition 40: one-time 5% billionaire tax |
| May 28, 2026 | New York FY2027 budget: NYC pied-a-terre surcharge |
| March 30, 2026 | Washington ESSB 6346: 9.9% tax on income above $1 million |
| March 24, 2026 | Washington SB 6347: estate tax top rate rolled back |
In Lewis v. Commissioner, the court rejected both the IRS's $53.4 million figure and the family's $156,000 claim, holding that state law and an avoided tax-reimbursement duty set the value.
SpaceX priced the largest IPO in history at $135 a share, but the flat 22% withholding on employee RSUs falls well short of what many will actually owe.
REG-116506-25 would require opportunity funds to report investor dispositions, have zone businesses attest to compliance and follow new decertification steps, with comments due October 16.
The uniform deal announced in May is closed and its deadlines withdrawn. Investors in syndicated easement partnerships now face case-by-case talks with a new dedicated IRS office.
A California appeals court said San Francisco’s voter-approved Empty Homes Tax conflicts with state law, leaving a levy of $2,500 to $20,000 per vacant unit unenforceable for now.
One email a week: the rule changes that matter, the numbers behind them, and the questions to bring to your advisor. Built from 275 stories in the archive.
