Trump Accounts in California: State Tax Treatment

California's general conformity date doesn't reach OBBBA

California conforms to the Internal Revenue Code as of a fixed date, not automatically as federal law changes. That date is currently January 1, 2025 — Cal. Rev. & Tax. Code § 17024.5(a)(1)(Q) sets it in exactly those terms: "For taxable years beginning on or after January 1, 2025 ........................ January 1, 2025." The Legislature moved the date forward to this point from January 1, 2015 by SB 711 (Stats. 2025, Ch. 231), effective October 1, 2025 — the first general conformity update in a decade.

January 1, 2025 is still before July 4, 2025, the date the One Big Beautiful Bill Act (OBBBA, Public Law 119-21) was enacted and created IRC §530A. California's general conformity mechanism therefore does not, by itself, pick up Trump Accounts at all — the same reasoning Grant Thornton's own coverage of SB 711 reached, confirmed here against the statute's own text rather than taken from that summary.

SB 180: a standalone fix, not a conformity-date update

California addressed this with a second, separate bill rather than by moving its general conformity date again. SB 180 (2025-2026 Regular Session) was approved by the Governor and filed with the Secretary of State on July 13, 2026, chaptered as Stats. 2026, Chapter 85. It adds three new sections to the Revenue and Taxation Code, each operative for taxable years beginning on or after January 1, 2026 — the first tax year a Trump Account could receive contributions, which the federal statute bars before July 4, 2026, so California's fix is in place before the account type exists in practice, not playing catch-up after the fact.

Revenue and Taxation Code § 17151.1 conforms California to IRC §128 as it relates to employer contributions to 530A accounts. Section 17151.2 conforms to IRC §139J as it relates to certain contributions to 530A accounts. Section 17509.5 is the substantive core: it states that IRC §530A "shall apply, except as otherwise provided" for California purposes, for taxable years beginning on or after January 1, 2026 — meaning California generally follows the federal tax-deferred, IRA-style treatment of a Trump Account's contributions and growth, subject to the four California-specific items below.

Where California's version differs from the federal rule

Section 17509.5 does not adopt §530A wholesale — it names four California-specific items, each verified directly against the chaptered bill text:

1. A different rate on an additional tax. SB 180 tells California to compute the additional tax "imposed under Section 530A(d)(2)" of the Internal Revenue Code, "relating to tax treatment of allowable distributions," "using a rate of 2.5 percent in lieu of the rate provided in that section." But IRC §530A(d)(2) itself sets no tax and no rate. It applies the federal annuity rules of IRC §72 to a Trump Account payout and keeps certain deposits (the $1,000 federal pilot deposit, employer contributions, and some government or charity deposits) out of the part you get back tax-free. The bill does not name the federal rate that 2.5 percent replaces, so ask a tax professional how California applies it before you take a payout.

2. One federal provision does not apply in California. IRC §530A(d)(5)(C), which the bill describes as "relating to distributions of excess contributions," is expressly excluded: California's statute states it "shall not apply." Practically, the federal answer for a distribution of an excess contribution does not carry over automatically; that scenario needs a California-specific analysis.

3. The federal trustee-selection provision does not apply either. IRC §530A(g) — the criteria the Treasury Secretary weighs when selecting a trustee for a Trump Account the Secretary creates — "shall not apply" for California purposes. This is a narrower, more technical item than the first two and is unlikely to change what a typical family experiences.

4. A copy of the federal report goes to the Franchise Tax Board. The statute requires that a copy of "the report required to be filed with the Secretary of the Treasury" under IRC §530A(i) be filed with the Franchise Tax Board "at the same time and in the same manner as specified in that section." This is a compliance obligation on the trustee/custodian side, not a new burden on the family, but it is worth a tax professional confirming a client's account custodian is actually doing before assuming California-side reporting is happening automatically.

What this means for a California family, practically

For a Trump Account funded and growing during a taxable year beginning on or after January 1, 2026, California now follows the federal deferral: contributions and investment growth are not separately taxed by California each year the way ordinary non-deferred investment income would be. That is the headline "California families won't owe annual tax" outcome some 2026 coverage described — accurately, as far as it goes, but only for tax years 2026 forward, and only with the four items above layered on top of the federal rule rather than a straight pass-through of it.

The practical points to know: SB 180 sets a 2.5 percent California rate for the additional tax it ties to IRC §530A(d)(2), but that paragraph names no federal rate, so have a tax professional work out the California tax on a payout rather than assuming it matches the federal one. IRC §530A(d)(5)(C), on distributions of excess contributions, does not apply in California, so work out the California result for that kind of distribution separately. And SB 180's sections apply only to taxable years beginning on or after January 1, 2026; the bill does not address earlier years. The Trump Accounts overview covers the $1,000 federal pilot deposit.