Education Funding for Wealthy Families: 529 Superfunding and the 529-to-Roth Rollover

529 superfunding lets a donor front-load five years of annual exclusion gifts into a 529 plan at once: up to $95,000 per beneficiary in 2026, or $190,000 from a married couple, with no gift tax and no use of lifetime exemption. The IRS annual gift exclusion is $19,000 per recipient for 2026, and Section 529 allows a special election to spread one large contribution over five years. Separately, SECURE 2.0 permits up to $35,000 per beneficiary, over a lifetime, to move from a long-held 529 into the beneficiary's Roth IRA.

For wealthy families, these two rules turn the 529 from a college account into a flexible, multigenerational wealth transfer tool.

How does 529 superfunding work?

Normally, gifts above the annual exclusion consume lifetime gift and estate tax exemption. Section 529 provides an exception: a contributor may elect on a gift tax return (Form 709) to treat a lump-sum 529 contribution as if it were made evenly over five calendar years. In 2026, with a $19,000 annual exclusion, that means $95,000 per donor per beneficiary, or $190,000 for a married couple electing together.

The contribution leaves your taxable estate immediately, and all future growth occurs outside the estate, yet you remain the account owner. You control investments, can change the beneficiary within the family, and can even take the money back, although a non-qualified withdrawal triggers income tax and a 10 percent penalty on earnings.

Two cautions. First, if you superfund, additional gifts to the same beneficiary during the five-year window will eat into lifetime exemption. Second, if the donor dies before the five years elapse, the exclusions for the remaining years are pulled back into the donor's estate; for families under the $15,000,000 per-person federal exemption effective in 2026, that recapture rarely creates tax, but it should be modeled.

What is the 529-to-Roth rollover and what are the rules?

SECURE 2.0 created a release valve for the classic objection to 529s: what if the child does not use the money? Beginning in 2024, leftover 529 funds can be rolled to a Roth IRA owned by the 529 beneficiary, subject to strict conditions confirmed in IRS guidance and plan documentation:

• A lifetime maximum of $35,000 per beneficiary, across all 529 accounts in that beneficiary's name.
• The 529 account must have been open for more than 15 years.
• Contributions made within the last 5 years, and their earnings, are not eligible.
• Each year's rollover is capped at the Roth IRA contribution limit ($7,500 in 2026), reduced by any regular IRA contributions, and the beneficiary must have earned income at least equal to the rollover.
• The transfer must go directly from the 529 to the Roth IRA, and the Roth income phase-outs do not apply.

In practice, filling the $35,000 lifetime cap takes roughly five years of maximum rollovers. One open question deserves care: the IRS has not definitively clarified whether changing the beneficiary restarts the 15-year clock. Until guidance arrives, conservative planners assume it might, and structure accounts accordingly.

A hypothetical example: grandparents fund three grandchildren

Suppose a hypothetical Madison couple, both 68, superfunds 529 accounts for three grandchildren in January 2026. They contribute $190,000 per grandchild, $570,000 in total, and file Form 709 making the five-year election. No gift tax is due and no lifetime exemption is used.

Assuming, purely for illustration, a hypothetical 6 percent annual return, each account would grow to roughly $340,000 in ten years and $610,000 in eighteen years. The $570,000 and all of its growth sit outside the grandparents' taxable estate. If one grandchild later attends college on scholarship, the family can change that account's beneficiary to another family member, withdraw an amount equal to the scholarship without the 10 percent penalty (earnings still taxed), or begin moving up to $35,000 into the grandchild's Roth IRA once the account and earned-income requirements are met. This example is hypothetical and not a prediction of any investment result.

Can a 529 become a multigenerational asset?

Yes, with planning. Account owners may change the beneficiary to another member of the beneficiary's family, including siblings, nieces and nephews, and eventually the beneficiary's own children, without income tax. Some families deliberately overfund 529s to create an education endowment that rolls down through generations.

The caution is transfer tax. Changing the beneficiary to someone a generation below the current beneficiary may be treated as a gift from the old beneficiary, and potentially a generation-skipping transfer; the regulations in this area are old and incomplete. Large multigenerational 529 strategies should be designed with estate counsel rather than improvised.

Is there a Wisconsin state tax benefit?

Yes. Wisconsin taxpayers who contribute to the state's Edvest 529 plan may deduct up to $5,280 per beneficiary from Wisconsin taxable income for 2026 ($2,640 for married filing separately), according to the Wisconsin Department of Financial Institutions. The deduction is available to any Wisconsin taxpayer who contributes, not only the account owner, and unused amounts above the annual cap can generally be carried forward. The state deduction is modest next to the federal estate planning benefits, but it is free efficiency for Wisconsin families.

Key numbers for 2026

Frequently asked questions

Can both grandparents and parents superfund the same child?Yes. The annual exclusion applies per donor, so parents and each set of grandparents can each make five-year elections for the same beneficiary, though coordination prevents accidental overlap with other gifts.

Do superfunded 529 assets affect financial aid?Grandparent-owned 529s no longer count as parental assets on the FAFSA, and distributions no longer count as student income under current aid rules. For most families at this wealth level, aid is not the driver, but the treatment has improved.

Does the 529-to-Roth rollover replace the beneficiary's own retirement saving?No. The rollover counts against the year's IRA contribution limit, so it substitutes for, rather than adds to, a regular Roth contribution in any given year.

What happens if I superfund and then die in year three?The exclusions attributable to the remaining two years are included in your taxable estate. With a $15,000,000 per-person federal exemption in 2026, this is usually a reporting issue rather than a tax cost, but it should be reviewed.

Can I use 529 money for private K-12 tuition?Federal law permits limited K-12 tuition withdrawals, and state treatment varies. Check current federal limits and your state plan's rules before relying on this use.

Is the 529-to-Roth rollover subject to income limits?No. The usual Roth IRA income phase-outs do not apply to 529-to-Roth rollovers, which makes the provision useful even for beneficiaries who become high earners.