California 529 Plan Savings Calculator
Estimate how a 529 plan investment grows over time for California residents
California Calculator
Get accurate results
Updated for 2025 with real California rates, brackets, and regulations
California's 529 plan — ScholarShare 529 — is managed by TIAA and offers age-based and static investment portfolios with Vanguard index funds. One critical difference from many states: California offers NO state income tax deduction for 529 contributions. This means there's no tax incentive to use ScholarShare over another state's 529. However, all 529 growth is federal and CA tax-free when used for qualified education expenses. This calculator models your ScholarShare savings growth and projected college coverage.
Calculate Your CA Tax
529 Value at Age 18
$70,634
Total Contributed
$46,800
Growth
$23,834
Target Cost (4yr)
$150,000
Coverage
47.1%
Shortfall
$79,366
Years to Save
13years
Breakdown
Insight
Contributing $300/mo to ScholarShare 529 for 13 years grows to $70,634 — covering 47% of estimated UC costs. California's ScholarShare 529 has no state tax deduction (CA doesn't offer one), but federal tax-free growth makes it worthwhile. You're $79,366 short — increase contributions to $637 /mo to fully cover costs. ScholarShare uses Vanguard and TIAA funds with low fees.
AI Explanation
What This Means
Based on default inputs, the California 529 Plan Savings Calculator shows a 529 value at age 18 of $70,634. Key figures: Total Contributed: $46,800, Growth: $23,834, Target Cost (4yr): $150,000, Coverage: 47.1%, Shortfall: $79,366, Years to Save: 13years.
Key Insights
Contributing $300/mo to ScholarShare 529 for 13 years grows to $70,634 — covering 47% of estimated UC costs. California's ScholarShare 529 has no state tax deduction (CA doesn't offer one), but federal tax-free growth makes it worthwhile. You're $79,366 short — increase contributions to $637 /mo to fully cover costs. ScholarShare uses Vanguard and TIAA funds with low fees.
What You Can Do
Enter your actual figures in the calculator above for a personalized breakdown. Consider consulting a tax professional for comprehensive planning, especially for complex situations involving multiple income sources or deductions.
Keep In Mind
This calculator provides estimates based on 2026 rates. Actual tax liability may vary based on credits, exemptions, and other factors not captured here. This is for educational purposes only and should not be considered tax advice.
How the California 529 Plan Savings Calculator Works
The California 529 Plan Savings Calculator uses 2026 tax rates, brackets, and deductions specific to California to provide you with an accurate estimate of your tax obligations. Unlike generic federal-only calculators, this tool accounts for the unique tax structure that California residents face.
Formula
Future Value = Monthly Contribution × [((1+r)^n - 1) / r] + Current Balance × (1+r)^n. Where r = monthly return, n = months until college.Simply enter your financial details above, and the calculator instantly computes your results using the latest available data. All calculations happen directly in your browser — your personal information is never sent to any server or stored anywhere.
Why Use a California-Specific Calculator?
State-Specific Rates
Uses real 2026 California tax brackets, rates, and thresholds — not generic national averages that miss state-level nuances.
Local Programs & Exemptions
Factors in California-specific programs, exemptions, and deductions that national calculators simply don't account for.
Instant & Private
All calculations run locally in your browser. No account required, no data stored, no waiting for results.
AI-Powered Explanations
Get a plain-English breakdown of your results with actionable insights you can actually use for financial planning.
What's Included
Growth Projections
Models aggressive, moderate, and conservative portfolio returns to age 18
No CA Tax Deduction
Clarifies that CA offers no state tax break — choose any state's 529
College Coverage
Shows what percentage of UC, CSU, or private school costs your savings cover
Frequently Asked Questions
Does California offer a 529 tax deduction?
No. California is one of the few states with an income tax that does NOT offer a state tax deduction for 529 contributions. This means there's no tax advantage to using ScholarShare over another state's 529 plan.
What is ScholarShare 529?
ScholarShare 529 is California's official 529 plan managed by TIAA. It offers age-based portfolios (automatically become conservative as college nears) and static portfolios using Vanguard index funds. No state tax deduction, but investment growth is tax-free.
Should I use California's 529 or another state's plan?
Since CA offers no tax deduction, you can use any state's 529. Compare expense ratios and investment options. Utah's My529 and Nevada's Vanguard 529 are popular alternatives with lower fees.
How much should I save per month for college in California?
For a 4-year UC education (~$160K total), starting at birth: ~$500/month at 6% returns. Starting at age 5: ~$750/month. For CSU (~$100K total), reduce by 35%. Community college transfer path cuts total cost roughly in half.
Can 529 funds be used for K-12 tuition in California?
Yes. Federal law allows up to $10,000/year from 529 plans for K-12 tuition. California conforms to this federal provision. Private school tuition in CA ranges from $20K-$50K/year, making 529 savings valuable for K-12 as well.
Important Information for California Residents
Tax laws in California can change annually. This calculator is updated regularly to reflect the latest 2026 rates and regulations, but you should always verify important financial decisions with a qualified California tax professional or CPA.
This tool is designed for informational and educational purposes. While we strive for accuracy using official California Department of Taxation data, the results should be used as estimates for planning purposes only. Your actual tax liability may differ based on credits, special circumstances, and legislative changes that occur after our last update.
For filing deadlines, payment schedules, and official forms, visit the California Department of Taxation and Finance website. If you have complex tax situations involving multiple states, business income, or significant investment gains, professional guidance is recommended.
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