A 529 college savings plan is one of the most tax-efficient ways for grandparents to help with education and pass on wealth. Contributions grow tax-free and come out tax-free for qualified education costs, while also moving money out of the grandparent's estate. A special gifting rule even lets you front-load several years of contributions at once.

How a 529 works

A 529 plan is a tax-advantaged education savings account where your contributions grow free of federal tax and withdrawals are tax-free when used for qualified education expenses. Qualified costs include college tuition, fees, room and board, and a limited amount of K-12 tuition, among others. As the account owner, a grandparent keeps control of the money and can change the beneficiary to another family member if plans change. Many states also offer a tax deduction or credit for contributions.

The estate-planning angle

Contributions to a 529 are completed gifts that leave your taxable estate, along with all future growth, yet you keep control as the owner, an unusual and valuable combination. This lets grandparents reduce a potential estate-tax bill while still being able to reclaim the funds if truly needed (subject to tax and a penalty on earnings). Because the money is out of your estate, it also passes to the next generation without probate. Few other vehicles combine retained control with estate removal so cleanly.

Superfunding with five-year averaging

A special election lets you contribute up to five years of the annual gift tax exclusion to a 529 in a single year and treat it as spread evenly over five years. At the 2025 and 2026 exclusion, that is up to 95,000 dollars per grandchild from one grandparent, or 190,000 dollars from a couple, with no gift tax and no use of lifetime exemption. This front-loading gives the money more years to grow tax-free. If the grandparent dies within the five years, a portion is added back to their estate.

Financial aid and coordination

Thanks to recent changes to the federal aid formula, distributions from a grandparent-owned 529 no longer reduce the grandchild's federal financial aid, removing an old drawback. Still, coordinate with the parents so multiple 529s are not over- or under-funded. Unused funds can be redirected to another beneficiary, and a limited amount can now be rolled into the beneficiary's Roth IRA under certain conditions. Keep beneficiaries and account owners aligned with the family's overall plan.

Two grandparents superfund a 529 for a newborn grandchild with 190,000 dollars in one year, electing to spread it over five years so no gift tax applies. Invested for eighteen years, that sum can grow substantially and be withdrawn tax-free for college. Meanwhile, the 190,000 dollars and all its growth are out of the grandparents' taxable estate.

Key takeaways

  • A 529 grows tax-free and pays for qualified education costs tax-free.
  • Contributions leave the grandparent's estate while the owner keeps control of the account.
  • Five-year averaging lets you front-load up to 95,000 dollars per grandchild, or 190,000 as a couple, at 2025 and 2026 limits.
  • Grandparent-owned 529 withdrawals no longer hurt the grandchild's federal financial aid.

Common mistakes

FAQ

What happens to leftover 529 money?

You can change the beneficiary to another eligible family member, and a limited amount may be rolled into the beneficiary's Roth IRA under certain conditions, though nonqualified withdrawals owe tax and a penalty on earnings.

Does a 529 reduce my estate?

Yes. Contributions are completed gifts that leave your taxable estate along with future growth, even though you keep control as the account owner.