Updated October 4, 2026. Quick answer: No. California allows no state deduction or credit for 529 contributions: the Franchise Tax Board’s analysis says state law “provides that contributions made to a qualified tuition program are not deductible”. The one bill that would have added a deduction for 2026, SB 529, is listed by the Legislature as an inactive bill that died.
What California allows for 529 contributions
| Item | What the documents say |
|---|---|
| Treatment | No deduction or credit |
| Limit | None |
| Proposed change | SB 529 would have added a deduction for 2026; it died |
| Not-qualified withdrawals | An additional state tax of 2.5% on earnings |
| Source | California Franchise Tax Board, SB 529 bill analysis; California Legislature bill status; ScholarShare 529 |
A $10,000 contribution by a married couple
A married couple who put $10,000 into a 529 account for one child deducts $0 on the California return. The plan’s earnings still grow without yearly California tax.
Optional adviser-matching service
Balance education savings with retirement
For U.S. investors with $250,000 or more in investable assets. Want help balancing education savings with retirement? Request adviser introductions for your wider investment plan.
This is investment-adviser matching, not 529 enrollment or tax-return preparation.
WiserAdvisor is an independent matching service. Free to request, with no obligation to hire. Request up to three adviser introductions; a match is not guaranteed. Submitting its form allows calls, texts and emails from WiserAdvisor and up to three advisers.
Clear Money Guide may earn a referral payment for a qualifying completed form. Advisers pay for introductions; an introduction is not a Clear Money Guide recommendation.
Compare investment advisersOpens on WiserAdvisor’s site in a new tab.
Nonqualified withdrawals
The analysis notes “an additional tax of 2.5 percent for state purposes”, and the ScholarShare plan’s page repeats it: “additional 2.5% California tax on earnings”.
What changes in 2026
SB 529 would have started a deduction for taxable years beginning in 2026. The Legislature lists it as an inactive bill that died, so no deduction takes effect.
Federal rules
A state break sits beside the federal rules for 529 plans: the statute is 26 U.S.C. 529 and the IRS explains it in Publication 970, Tax Benefits for Education.
Common mistakes
- Expecting a state deduction because other states offer one.
Related: how California taxes retirement income, whether California taxes pensions, the five questions behind any 529 state tax break, and the state-by-state table of 529 deductions.
Sources
- Bill Analysis, SB 529: Qualified Tuition Program Deduction: https://www.ftb.ca.gov/tax-pros/law/legislation/2025-2026/SB529-022025.pdf
- How a 529 Plan Works: Tax Advantages and Savings Tips: https://www.scholarshare529.com/learn/how-does-a-529-plan-work/
- Bill Status, SB-529 Personal income taxes: deduction: California qualified tuition program: https://leginfo.legislature.ca.gov/faces/billStatusClient.xhtml?bill_id=202520260SB529
Sources: the primary documents linked above, read on October 4, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the plan administrator or the agency itself is the right place to confirm anything consequential.