The 529 Plan Got a Major Upgrade. Here's How High Earners Should Use It in 2026
Most high earners think of a 529 as a college fund and nothing more. Put money in, watch it grow, pay tuition, done. That mental model is now out of date. Two rounds of legislation, SECURE 2.0 in 2022 and the One Big Beautiful Bill Act signed in July 2025, quietly turned the 529 into one of the more flexible tax-advantaged accounts available to families with real income.
A 529 plan is a state-sponsored investment account where your contributions grow tax-deferred and come out completely tax-free when used for qualified education expenses. That definition has not changed. What changed is the meaning of "qualified" and what happens to the money your kid never spends. The account now covers private K-12 costs up to $20,000 a year, funds trade certifications and professional licenses, and lets you move up to $35,000 of leftover funds into your child's Roth IRA without taxes or penalties.
Here is what actually matters for a household earning $300,000 or more, where the questions are usually about how much to put in, how to time it, and what happens if the plans change.
How Much Can You Put Into a 529 Without Triggering Gift Tax?
You can contribute up to $19,000 per child in 2026 without any gift tax filing at all, and a married couple can give $38,000 per child by combining their exclusions. Every dollar you put into a 529 counts as a gift to the beneficiary under federal law, so the annual gift tax exclusion is the number that governs contributions. Stay under it and there is no paperwork.
The more useful number for high earners is $95,000. A special provision unique to 529 plans lets you front-load five years of gifts in a single year, so one parent can drop $95,000 into a child's account at once, and a married couple can contribute $190,000, without owing gift tax. This is called superfunding or five-year averaging. You file IRS Form 709 in the first year to elect the treatment, then you make no further gifts to that same child for five years to stay clean.
The reason to superfund is time. Money that goes in early has years to compound before college, and inside a 529 that compounding is not taxed along the way. To illustrate the mechanics, a $190,000 contribution left untouched for eighteen years would roughly triple at a hypothetical 6% annual return, and if the growth is eventually spent on qualified education it comes out tax-free. That figure is an assumption used to show how compounding works, not a projection of what any account will earn, since actual returns vary and can be negative. The tradeoff is liquidity. That is real money locked into an account with a narrow purpose, so superfunding makes sense only after your own retirement and emergency reserves are solid.
There is a second, quieter benefit. Because a 529 contribution is a completed gift, the money leaves your taxable estate. For families whose net worth is approaching the federal estate tax exemption, superfunding several grandchildren at once is a way to move significant wealth out of the estate while keeping it working toward a family goal.
What Can 529 Money Actually Pay For Now?
As of 2026, a 529 can pay for far more than college tuition. The One Big Beautiful Bill Act expanded the account in two directions that matter for high-earning families.
First, K-12. Families can now withdraw up to $20,000 per child each year, tax-free at the federal level, for private or religious school. That is double the previous $10,000 cap, and it took effect for the 2026 tax year. The expanded law also broadened what counts beyond straight tuition, adding things like tutoring from an unrelated qualified instructor, standardized test and AP exam fees, curriculum materials, and educational therapies for students with disabilities. For a family already paying $30,000 or more a year in private school tuition, running that spending through a 529 first converts some of it into tax-free growth rather than after-tax cash out of pocket.
Second, credentials. The account now covers qualified postsecondary credentialing programs, not just four-year degrees. That includes tuition, fees, books, and exam costs for recognized certificates, licenses, and apprenticeships, from trade programs to professional certifications. If your child pursues a licensed trade instead of a university, or an adult beneficiary retools for a new career, the 529 follows them.
One caution runs through all of this. States do not automatically follow federal law. Several states have not adopted the OBBBA changes, which means a K-12 withdrawal that is federally tax-free could still trigger state income tax or claw back a prior state deduction. Confirm how your specific state treats these withdrawals before you take one.
What Happens to a 529 Your Child Never Uses?
Leftover 529 money can now be rolled into the beneficiary's Roth IRA, up to a $35,000 lifetime limit, without income tax or the usual 10% penalty on earnings. This was the change families had been waiting years for. The old fear, that you would overfund the account and get stuck paying tax plus a penalty to get your own money back, no longer has to control how much you contribute.
The rules are specific and worth getting right. The 529 must have been open for at least 15 years. The money you roll over has to have been in the account for at least five years. The Roth IRA must belong to the beneficiary, not the parent who owns the 529. And each year's rollover counts against the beneficiary's own Roth contribution limit, which is $7,500 in 2026, so moving the full $35,000 takes roughly five years of transfers. The beneficiary also needs earned income at least equal to the amount rolled over that year.
The most valuable feature is one that flies under the radar. The rollover ignores the income limits that normally block high earners from Roth IRAs. In 2026, a single filer earning above $153,000 cannot contribute directly to a Roth. But a child who receives a 529-to-Roth rollover faces no such cap. In our work at Lotus Asset Management with high-income families, this has become a way to seed a young adult's retirement with tax-free money that their income would otherwise put out of reach. A modest rollover at 22 has more than four decades to compound tax-free before retirement.
There is one important sequencing point. Contributions made in the last five years are not eligible to roll over, which means you cannot superfund a 529 and immediately move it to a Roth. The strategy rewards families who open and fund the account early, which is the same behavior that makes superfunding work in the first place.
Putting It Together
The 529 is no longer a single-purpose college account you fund and forget. It can front-load fifteen years of tax-free growth through superfunding, cover private school and trade credentials along the way, and convert whatever is left into a Roth IRA for a child who would otherwise be shut out by income limits. The three moves that matter most are opening the account early to start the 15-year clock, sizing contributions against your own liquidity and retirement needs first, and checking your state's rules before taking any of the newly expanded withdrawals.
None of this replaces the basic question of whether tying up money in an education account fits your broader plan. But if you have children, meaningful income, and an estate that could face tax someday, the current 529 rules give you more levers than most people realize. If any of this maps to your situation, it is worth walking through the numbers with your advisor before year-end.
Frequently Asked Questions
Q: Can I put $95,000 into my child's 529 in one year without paying gift tax? A: Yes. A single person can contribute up to $95,000 per beneficiary in 2026, and a married couple up to $190,000, by electing five-year gift tax averaging on IRS Form 709. The contribution is treated as if spread evenly over five years, so you cannot make additional gifts to that same child during the five-year window without using part of your lifetime exemption.
Q: What happens to leftover 529 money if my child gets a scholarship or doesn't go to college? A: You have several options. You can roll up to $35,000 over the beneficiary's lifetime into their own Roth IRA tax-free and penalty-free, provided the account is at least 15 years old and other conditions are met. You can also change the beneficiary to another family member, hold the funds for graduate school, or use them for the newly expanded trade and credentialing programs. A non-qualified withdrawal is still possible, but the earnings portion would be taxed and generally hit with a 10% penalty.
Q: Do the new OBBBA 529 rules apply in my state? A: Not necessarily. The federal changes, including the $20,000 K-12 limit and expanded qualified expenses, apply for federal tax purposes, but states set their own rules. Some states have adopted the changes and others have not, which means a withdrawal that is federally tax-free could still be taxed at the state level or trigger recapture of a prior state deduction. Confirm your state's treatment with a tax professional before withdrawing.
This post is for educational purposes only and does not constitute investment, tax, or legal advice. Please consult a qualified financial advisor, CPA, or attorney before making any financial decisions.
