529 college savings plans: how they work
State-sponsored tax-advantaged accounts for education. Tax breaks, contribution limits, and recent SECURE 2.0 changes.
A state-sponsored tax-advantaged investment account for qualified education expenses. Earnings grow tax-free; qualified withdrawals are tax-free.
Example: $10,000/year for 18 years at 7% in a 529 grows to $336,000 with no federal tax on growth.
Tuition, fees, books, supplies, and room/board for accredited college; up to $10,000/year for K-12 tuition; up to $10,000 lifetime for student loan repayment.
Example: Computers and internet access used for school count; private high school tuition counts up to $10K/year.
The owner controls the account and chooses the beneficiary (usually a child). The owner can change the beneficiary or use funds for themselves with tax penalty.
Example: If your first child does not need all the funds, change the beneficiary to a sibling, niece, or even yourself.
529 plans are the standard tax-advantaged vehicle for college savings. They are state-sponsored but you do not have to use your home state — you can pick any state plan, though many states give an income tax deduction for using their own.
How the tax treatment works
Contributions are made with after-tax dollars (no federal deduction). Growth is federal tax-free. Withdrawals for qualified education expenses are also federal tax-free. Many states offer a deduction or credit for contributions to their own plan.
2026 contribution limits
There is no annual federal contribution limit for a 529, but contributions are generally treated as gifts. For 2026, the federal annual gift-tax exclusion is $19,000 per donor per beneficiary ($38,000 when two spouses split gifts); a donor can elect to spread up to $95,000 over five years ($190,000 for two spouses) under the qualified-tuition-program rules. Check the current IRS instructions and your plan's aggregate account limit before contributing.
SECURE 2.0 Roth conversion
Under the rules for distributions after 2023, some leftover 529 funds can be rolled directly to a Roth IRA for the beneficiary, subject to the annual IRA contribution limit, a $35,000 lifetime cap, a 529 account age requirement of more than 15 years and the five-year contribution lookback. Check the current IRS Publication 590-A and plan administrator rules; this is not a universal escape hatch for every excess balance.
Investment options
Most 529 plans offer age-based portfolios that automatically shift from stocks to bonds as the beneficiary approaches college age, and many offer static portfolios. Compare the plan's expense ratios, investment menu, state tax benefit, fees, risk level and disclosure documents; a named plan is not a universal recommendation and fees can change.
Coordination with financial aid
Parent-owned 529s are assessed at up to 5.64% on FAFSA — much better than student-owned assets (20%). Grandparent-owned 529s are no longer counted at all on FAFSA as of 2024 (FAFSA Simplification Act), making them a powerful planning tool.
Frequently asked questions
What if my child does not go to college?
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Should I use my home state plan?
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How much should I save?
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Sources & further reading
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