The Cost of College
College costs have outpaced general inflation for decades. Tuition at four-year public universities has risen at roughly 5% to 6% per year — about double the rate of overall inflation. For the 2024-25 academic year, the average annual cost of attendance (tuition, fees, room, and board) is approximately $24,000 at in-state public universities and $56,000 at private universities.
A child born today faces estimated costs of $200,000 to $500,000 for a four-year degree by the time they reach college age, depending on the type of institution. These numbers can feel paralyzing, but two facts help put them in perspective: most families don't pay the sticker price (financial aid, scholarships, and grants reduce the actual cost), and you don't need to save the full amount.
What Is a 529 Plan?
529 tax advantage. A 529 plan is a tax-advantaged savings account designed for education expenses. You contribute after-tax dollars, and the money grows tax-free. Withdrawals are also tax-free when used for qualified education expenses. This is the same tax treatment as a Roth individual retirement account (IRA) — no tax on growth, no tax on qualified withdrawals. Many states add a bonus: a state income tax deduction or credit for contributions to your state's plan (or sometimes any state's plan).
Every state sponsors at least one 529 plan. You don't have to use your own state's plan — you can open an account in any state. However, the state tax deduction (if your state offers one) usually requires using your home state's plan. Compare your state's plan quality and fees against other states, and weigh the tax deduction.
There are no income limits for contributing to a 529. Annual contributions up to $18,000 per beneficiary (2024 figure) fall within the annual gift tax exclusion, meaning no gift tax paperwork. A special "superfunding" rule allows you to contribute up to five years' worth ($90,000) in a single year without gift tax implications — useful for grandparents or anyone who wants to front-load growth.
What Counts as a Qualified Expense?
Qualified education expenses include tuition and fees, room and board (up to the school's cost-of-attendance allowance), books and supplies, computers and internet access required for enrollment, and special-needs equipment. Since 2018, 529 funds can also pay up to $10,000 per year for K-12 tuition at private or religious schools. Since 2019, up to $10,000 lifetime can repay student loans.
Withdrawals used for non-qualified expenses trigger income tax plus a 10% penalty on the earnings portion only. Your original contributions always come out tax-free and penalty-free, since you contributed after-tax dollars.
Investment Options and Age-Based Allocation
529 plans offer a menu of investment options, typically mutual funds or exchange-traded funds (ETFs). Most plans include an age-based portfolio that automatically shifts from aggressive (mostly stocks) when the child is young to conservative (mostly bonds and cash) as college approaches. This is similar to a target-date retirement fund — the allocation becomes more conservative as the goal date nears.
Age-based options are a reasonable default for most families. They invest aggressively when the time horizon is long (maximizing growth) and protect against market drops as the withdrawal date approaches. If you prefer more control, most plans also offer static portfolios at various risk levels.
Jordan opens a 529 for a newborn and selects the age-based portfolio. For the first 6 years, the portfolio is 90% stocks and 10% bonds — aggressive, because college is 18 years away. By age 10, it shifts to 70/30. By age 15, it's 40/60. By age 17, it's mostly bonds and money market funds. This automatic glide path means Jordan doesn't need to actively manage the investments. The portfolio naturally de-risks as the money is needed.
What If the Child Doesn't Go to College?
This is the most common concern parents have about 529 plans. The money isn't locked away forever:
- Change the beneficiary. Transfer the account to another family member — a sibling, cousin, niece, nephew, or even yourself. No tax or penalty. There's no limit on how many times you can change the beneficiary.
- Roth IRA rollover. Starting in 2024, you can roll up to $35,000 (lifetime limit) from a 529 into a Roth IRA for the beneficiary. The 529 account must have been open for at least 15 years, and rollovers are subject to annual Roth IRA contribution limits. This is a significant new option for unused 529 funds.
- Non-qualified withdrawal. You can withdraw the money for any purpose. You'll owe income tax plus a 10% penalty on the earnings, but your original contributions come out tax- and penalty-free. If the account earned 50% returns over its life, roughly one-third of the account is earnings and two-thirds is contributions.
- Trade school, apprenticeships, and continuing education. 529 funds cover any accredited post-secondary institution, not just four-year universities. Trade schools, community colleges, and many certification programs qualify.
Myth: "I need to save for 100% of college costs, and if my child doesn't go, the money is wasted."
Reality: Most families cover college through a combination of savings, current income, financial aid, scholarships, and some borrowing. Saving one-third to one-half of the expected cost is a strong target — the rest can come from other sources. And if the child doesn't attend college, the money isn't trapped: you can change the beneficiary, roll up to $35,000 into a Roth IRA, use it for trade school, or withdraw it (paying tax and a 10% penalty on earnings only). The 529 is flexible enough to handle most outcomes.
Alternatives to 529 Plans
529 plans aren't the only option for education savings:
- Coverdell Education Savings Account (ESA). Similar tax-free growth, but limited to $2,000/year in contributions and subject to income limits. Covers K-12 and college. Less popular since 529s expanded to cover K-12 tuition.
- Uniform Transfers to Minors Act / Uniform Gifts to Minors Act (UTMA/UGMA) custodial accounts. Not education-specific — the child gets full control of the money at age 18 or 21 (depending on the state). No tax advantage for growth, and the money counts heavily against financial aid eligibility. Useful for non-education gifts, but not ideal as a college savings vehicle.
- Taxable brokerage account. No contribution limits, no restrictions on use, full flexibility. But you pay capital gains tax on growth. Can make sense as a supplement if you've maxed your 529 or want unrestricted access.
- Roth IRA. Contributions (not earnings) can be withdrawn penalty-free for any purpose, including education. Some families use a Roth as a dual-purpose retirement and education account. The trade-off: Roth contribution limits are low ($7,000/year for 2024), and money withdrawn for college isn't available for retirement.
Don't Sacrifice Retirement for College
Maya earns $85,000 and is deciding between contributing $500/month to a 529 for her 3-year-old or increasing her 401(k) contributions (she's currently only contributing enough to get the employer match). Maya's financial advisor points out: her child can get scholarships, grants, work-study, and student loans for college. Maya cannot get a loan for retirement. If Maya underfunds her retirement to overfund the 529, she may end up financially dependent on her children later — the opposite of what she's trying to achieve. The recommendation: max the employer match first, then fund the 529 with what's left.
This is one of the most important principles in financial planning: your child can borrow for college, but you can't borrow for retirement. A parent with a secure retirement is in a much better position to help with college costs (and everything else) than a parent who sacrificed their own financial security.
A reasonable order of priorities: (1) get the full employer match on your 401(k) or similar plan, (2) build an emergency fund, (3) contribute to a Roth IRA, (4) then fund the 529 with what's available. If you can do all of these, great. If you have to choose, prioritize retirement.
Starting Early Matters
A 529 opened at birth has 18 years to grow. That's enough time for compound growth to do serious work. Contributing $200/month for 18 years at a 7% average annual return produces roughly $86,000 — of which only $43,200 is your contributions and $42,800 is investment growth. Start at age 8 instead, and 10 years of the same contributions at the same return produces about $35,000 — less than half, because you lost the most powerful compounding years.
Even small, early contributions outperform large, late ones. The math is the same as retirement saving: time in the market matters more than timing the market.
529 Growth by Starting Age
At 18: $86,400 (birth) · $52,900 (age 5) · $25,800 (age 10)
Open the College Savings Calculator. Set the child's current age to 0 and a monthly contribution of $200. Note the projected balance at age 18. Then change the starting age to 8 and keep the same monthly contribution. See how much less you end up with — that's the cost of waiting 8 years. Now try increasing the contribution to match the original projection. How much more per month do you need to make up for the lost time?
- 529 plans offer tax-free growth and tax-free withdrawals for qualified education expenses — the same tax treatment as a Roth IRA, but for education.
- Qualified expenses include tuition, room and board, books, computers, and up to $10,000/year for K-12 tuition.
- If the child doesn't attend college, you can change the beneficiary, roll up to $35,000 into a Roth IRA, use funds for trade school, or withdraw with a penalty on earnings only.
- Don't sacrifice retirement for college savings. Your child can borrow for school; you can't borrow for retirement.
- Starting early matters enormously. An 18-year time horizon lets compound growth roughly double your contributions. Waiting until the child is 8 cuts your growth potential by more than half.
- You don't need to save 100%. Covering one-third to one-half of expected costs through a 529 is a solid target — the rest comes from aid, scholarships, and current income.