California 529 Plan Rules And College Savings Options

California 529 Plans At A Glance

California 529 Tax Rules

California doesn't offer a state income tax deduction or credit for 529 contributions, to ScholarShare or any other plan. Qualified withdrawals for college are free of California income tax (ScholarShare 529), and our state-by-state 529 tax deduction table shows which states do reward contributions.

The catch is that California only partly follows the federal 529 rules. California adopted the federal treatment of student loan and apprenticeship withdrawals for tax years starting in 2021, but it turned down the K-12 and Roth IRA rollover provisions, so the earnings on those withdrawals count as California income (Cal. Rev. & Tax. Code 17140.3). Our list of qualified 529 plan expenses explains the federal side.

Churning, which means running a tuition payment through a 529 to capture a state deduction, has no payoff in California because there's no deduction to capture. ScholarShare's Plan Description sets no minimum holding period for contributions, so money can go in and come back out for a qualified college expense in the same year (ScholarShare 529 Plan Description). Families moving from a state with a deduction should check that state's rules, which our breakdown of 529 plan churning and withdrawal limits lists.

The Roth rule is the biggest California trap. Federal law lets a 529 that's been open at least 15 years roll up to $35,000 into the beneficiary's Roth IRA tax-free, but California says that provision doesn't apply, and ScholarShare treats the rollover as a non-qualified withdrawal for California purposes, with earnings taxed plus the 2.5% additional tax (ScholarShare 529). Read our 529-to-Roth IRA rollover rules and run the California cost before you move leftover money.

California's tax code hasn't adopted the 2025 federal changes either, including the new category for postsecondary credential programs (Cal. Rev. & Tax. Code 17140.3). ScholarShare added credential expenses as a federally qualified use on January 1, 2026, but says state treatment depends on your state (ScholarShare 529 Plan Description), so confirm with the Franchise Tax Board first. Our breakdown of the 2026 529 plan expansion covers what changed federally.

How California's 529 Plan Ranks

California ranks 36th of the 50 state plans in our best 529 plans rankings, which include Washington, D.C., with a 58.8% net return on investment. Our Net ROI score models $100 a month for 10 years at a 5% annual return, subtracts plan fees, and reinvests the value of the state tax break each year. ScholarShare's 0.05% fee is one of the lowest in the table, and the lack of any state tax break is the only thing holding its score down.

Because California gives no tax break for any plan, ScholarShare has no home-state tax edge, and California families can shop every state's plan on fees alone. That comparison favors ScholarShare: Arizona's higher score comes from a tax break only Arizona taxpayers get, so a California family in Arizona's plan would pay a higher fee for nothing extra. The full rankings table lists all 50 state plans.

The gap with the top of the list comes down to one lever, since California's fees are already near the bottom. Indiana's 20% tax credit is what puts it at #1, and California is one of the few income-tax states that offers no deduction at all, so adding one would move California families up. If that matters to you, share these numbers with your state legislators, and use our 529 plan tax deductions by state table to show how other states reward savers.

Should California Residents Use ScholarShare 529?

Yes, for nearly every California family. ScholarShare's passive portfolios cost 0.04% to 0.08% a year with no account fee or minimum (ScholarShare 529), so a lower-cost plan elsewhere is hard to find. Our 529 plan overview explains how those costs compound.

Families who hold another state's plan lose nothing by staying put, since California taxes every plan the same way, and our explainer on 529 plan rollovers and transfers covers the once-per-year federal limit if you want to consolidate. Nonresidents can open ScholarShare too, since the plan has no residency requirement (ScholarShare 529), but they should first check where to open a 529 plan in their own state.

Four years at an in-state California public university runs about $114,000 on campus, so the average ScholarShare balance of about $41,300 covers a little more than one year. Our California college costs and financial aid breakdown lists costs and Cal Grant rules, and our 529 savings benchmarks by age show what to aim for.

California 529 Plan Details

ScholarShare 529 is overseen by the ScholarShare Investment Board and managed by TIAA-CREF Tuition Financing (ScholarShare 529). As of June 30, 2026, ScholarShare held $21.02 billion across 509,455 open accounts, which ranked California 8th among the states in 529 assets (The 529 Network). Families put more than $1 billion into the plan in 2025 (ScholarShare 529), and our 529 plan and college savings statistics show how that compares nationally.

Other California College Savings Programs

Upromise. Upromise lets you earn money for your ScholarShare account through rebates and rewards on everyday spending, and the Upromise credit card sends cash back straight into your child's 529 plan (Upromise). You can link a ScholarShare account to your Upromise profile, so the rewards add to the account even without a state tax deduction.

CalABLE. California residents with disabilities can save in CalABLE, a 529A account that accepts out-of-state residents and opens with $25 (ABLE National Resource Center). ABLE balances up to $100,000 don't count against SSI's resource limit (Social Security Administration), which our 529 plan overview compares with regular college savings.

Leftover money. Families with money left after college can change the beneficiary to a sibling or pay down up to $10,000 of student loans tax-free in California, but a Roth IRA rollover triggers California tax on the earnings. Our list of what to do with leftover 529 money covers each option, and California graduates in teaching or health care should also check California student loan forgiveness programs.

Frequently Asked Questions

Related California Resources

How We Sourced This Data

Plan details on this page come from the plan and the state: ScholarShare 529's website, FAQ, and fee page (fund expenses as of July 1, 2026), the ScholarShare Plan Description (May 16, 2025) with supplements dated January 1 and July 24, 2026, the CalKIDS website, and The 529 Network 529 plan data as of June 30, 2026. Tax rules come from California Revenue and Taxation Code section 17140.3 and ScholarShare's tax disclosures, CalKIDS rules from California Education Code section 69996.3, ABLE details from the ABLE National Resource Center and the Social Security Administration, and the college cost figure from our California financial aid page. Read more about how we fact-check and update content.

Page refreshed annually in September, after ScholarShare publishes its updated fee schedule, and reviewed in January for tax season. Last full refresh: September 24, 2026.