College costs continue to rise faster than inflation. The average annual cost of attendance at a four-year public university in 2026 exceeds $28,000, and private institutions average over $60,000. A 529 plan is the most tax-efficient way most families can save for these costs, offering tax-free growth on invested funds when the money is used for qualified education expenses.
What Is a 529 Plan?
A 529 plan is a tax-advantaged savings account designed specifically for education expenses. Named after Section 529 of the IRS code, these plans are sponsored by states and educational institutions. You invest after-tax dollars, the money grows tax-free, and withdrawals are tax-free when used for qualified education expenses.
529 plans are available to anyone — there are no income limits — and the beneficiary can be changed to another family member at any time.
What Can You Use 529 Funds For?
Qualified expenses for higher education include:
- Tuition and fees at accredited colleges, universities, and vocational schools
- Room and board (on-campus or off-campus, up to the school’s published cost of attendance)
- Books, supplies, and required equipment
- Computers and internet access if required for enrollment
- Special needs services for beneficiaries with disabilities
Since 2018, 529 funds can also be used for K-12 tuition (up to $10,000 per year per student) and, since 2024, unused balances can be rolled into a Roth IRA for the beneficiary (with limits and conditions).
How 529 Plans Work
You open a 529 account, name a beneficiary (typically a child), and invest contributions in a menu of mutual funds, index funds, or age-based portfolios that automatically shift from aggressive to conservative as the beneficiary approaches college age. You can contribute as much as the plan allows — most states allow total balances above $500,000 — though gift tax rules apply to annual contributions over $18,000.
State Tax Deductions
While contributions are not deductible at the federal level, over 30 states offer a state income tax deduction or credit for contributions to your home state’s 529 plan. The value of this deduction varies widely. If your state offers a deduction, contributing to your home state’s plan first makes sense. If your state has no deduction, you are free to choose any state’s plan — and plans vary significantly in investment options and fees.
Choosing the Right 529 Plan
The best 529 plans combine low investment fees, broad investment options, and strong performance history. Consistently top-rated plans include:
- Utah my529 — low fees, wide investment flexibility
- New York’s NY529 Direct Plan — Vanguard funds, low costs
- Nevada’s Vanguard 529 — straightforward and low-cost
Even if your state plan is mediocre, check whether the state tax deduction outweighs the cost disadvantage before choosing a different plan.
What If the Money Is Not Used for Education?
If your child does not use the funds, you have several options:
- Change the beneficiary to another family member (sibling, cousin, yourself)
- Roll up to $35,000 of the account into the beneficiary’s Roth IRA (subject to annual Roth IRA limits), starting in 2024, provided the account has been open at least 15 years
- Withdraw the funds and pay income tax plus a 10% penalty on the earnings only (not the principal)
How Much Should You Save?
Financial planners generally suggest aiming to cover one-third of projected college costs through 529 savings, another third through future income, and the final third through scholarships and financial aid. A good rule of thumb: contribute $250 to $500 per month per child starting at birth, invested in an age-based portfolio.
The Bottom Line
A 529 plan is the most tax-efficient tool available for college savings. Even if you start late, the tax-free growth on invested contributions can meaningfully reduce your out-of-pocket costs. Open an account as early as possible, automate contributions, and let compounding do the heavy lifting over time.
For an overview of tax-advantaged saving beyond education, see our guide to what a Roth IRA is. For general saving strategy that funds both education and retirement goals, see how to save for retirement.