K-12 Tax Strategies: Using a 529 for Private School and Beyond

Why This Matters

Most people think of 529 plans as a way to save for college. But under recent federal tax changes, 529 plans have become a meaningful tool for paying K-12 education expenses too — including private school tuition, tutoring, educational materials, and certain therapies for students with learning differences.

For families paying for private elementary or secondary school — or supplementing public school education with significant outside services — these changes can deliver real tax savings. But there’s a major caveat: not all states have updated their rules to match the federal changes, which creates a planning trap worth understanding.

The $20,000 Annual K-12 Limit (Starting 2026)

The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, significantly expanded 529 plans’ K-12 utility. Two major changes:

1. The annual K-12 withdrawal limit doubled — from $10,000 to $20,000 per beneficiary per year, effective January 1, 2026. This applies whether the student attends public, private, religious, or homeschool programs.

2. The list of qualified K-12 expenses expanded dramatically, effective July 5, 2025. Previously, only tuition qualified. Now eligible expenses include:

• Tuition at public, private, or religious schools
• Curriculum and curricular materials
• Books and instructional materials
• Online educational materials
• Tutoring or educational classes outside the home (with restrictions on who can serve as tutor)
• Standardized test fees (SAT, ACT, AP exams, etc.)
• Dual enrollment fees for college courses taken in high school
• Educational therapies for students with disabilities

This expansion meaningfully broadens the value of 529 plans for K-12 expenses. A family with a child in private school might have previously been limited to using 529 funds only for tuition. Now they can also pay for tutoring, testing fees, curriculum materials, and other support services tax-free at the federal level.

How This Compares to Earlier Rules

Before the OBBBA, K-12 use of 529 funds was limited:

• Pre-2018: 529 funds could only be used for post-secondary education
• 2018-2025: Up to $10,000 per year could be used for K-12 tuition only
• 2026 onward: Up to $20,000 per year for K-12 expenses, with the expanded list of qualified expenses (which technically started July 5, 2025)

For families currently paying for private school or significant outside educational services, the doubled limit and expanded eligibility represent the most meaningful K-12 changes to 529 plans since they were first allowed.

The Critical State Tax Caveat

Here’s where it gets complicated: state tax treatment varies significantly, and not all states have updated their rules to match the federal changes.

The issue: 529 plans are administered by states. Each state has its own rules for:

• How much you can deduct (or credit) on your state tax return for 529 contributions
• Whether withdrawals are tax-free at the state level
• What counts as a “qualified expense” under state law

Some states have moved quickly to align with federal rules. Others have not, and some have explicitly chosen not to extend state tax benefits to K-12 expenses. In states that don’t conform:

• Withdrawals for K-12 expenses may still be federally tax-free, but subject to state income tax on the earnings portion
• State tax deductions or credits taken in prior years may be subject to recapture if you use the funds for K-12 expenses that don’t qualify under state law
• The expanded list of qualified expenses (tutoring, materials, therapies) may not be recognized for state tax purposes

Before using 529 funds for K-12 expenses, check your state’s specific rules. The federal tax break is meaningful, but the state tax cost can offset much of the benefit — or even create a net negative if state recapture rules apply.

Strategic Considerations

For families weighing whether to use 529 funds for K-12 expenses, a few practical considerations:

The trade-off with college savings. Every dollar used for K-12 is a dollar not growing in the 529 for future college costs. Withdrawing $20,000 per year for K-12 reduces the principal and the years of tax-free compounding. For families with substantial 529 balances and rising tuition costs, this trade-off may be worth it. For families with limited 529 funds and a strong college expectation, withdrawing for K-12 may compromise the original goal.

Front-loading contributions. If you anticipate significant K-12 expenses and you have funds to contribute, contributing to a 529 — even briefly — creates a “pass-through” for tax-free growth. Contribute, hold for a short time to satisfy any state-specific holding requirements, then withdraw for K-12 expenses. The federal tax benefit applies even with short holding periods, though state benefits may require longer holds. For families with larger amounts to deploy, superfunding can let a single contributor put up to $95,000 (or $190,000 for married couples) into a 529 in a single year.

Coordinating with state benefits. Some states offer immediate income tax deductions or credits for 529 contributions. Even if you plan to withdraw quickly for K-12 expenses, the state deduction may be worth more than any state-level recapture risk — but this requires careful analysis of your specific state’s rules.

Tutoring and therapy expenses. The expanded list of qualified expenses is particularly valuable for families with students needing learning support. Educational therapies for students with disabilities (such as those used to support learning differences) can be expensive, and being able to pay for them with tax-advantaged 529 funds is a meaningful benefit at the federal level.

The Takeaway

The OBBBA significantly expanded the use of 529 plans for K-12 education. Starting in 2026, families can withdraw up to $20,000 per beneficiary per year (double the previous $10,000 limit) for a much broader range of K-12 expenses — including tutoring, testing fees, curriculum materials, and educational therapies, not just tuition. For families currently paying for private school or supplementing education with outside services, this is a meaningful benefit. The major caveat: state tax treatment varies, and not all states have updated their rules to match federal changes. Before using 529 funds for K-12 expenses, check your state’s specific rules — withdrawals that are federally tax-free may still be subject to state income tax or trigger recapture of prior state tax benefits. For families considering this strategy, the trade-off between K-12 use and preserving funds for college is also worth weighing carefully.