Grandparents Can Shift $190,000 Per Grandchild Tax-Free With 529 Election

Q: Could a grandparent move $190,000 per grandchild out of an estate in one day with a 529—and what happens if they die early?

Yes. A grandparent can move up to $95,000 per grandchild into a 529 plan in one day in 2026 and elect to treat it as spread over five years for gift-tax purposes. A married couple using gift-splitting can generally double that to $190,000 per grandchild. That works because the 2026 annual federal gift-tax exclusion is $19,000 per donor, per beneficiary. Five years of that exclusion equals $95,000 for one donor, or $190,000 for two spouses. To use the rule, the donor must file IRS Form 709 and make the five-year election. The contribution is treated as a completed gift, so it is removed from the donor’s taxable estate right away, and future investment growth in the 529 is generally outside the estate too. The tradeoff is timing. If the donor dies before the five-year period ends, the portion allocated to the years after death is pulled back into the taxable estate. For example, if a grandparent superfunds a 529 and dies after two of the five years have passed, the remaining three-fifths of the original contribution is generally included in the estate. The earnings that accrued inside the 529 are generally not brought back in. This makes 529 “superfunding” a powerful estate-planning move for healthy grandparents who want to reduce their estate and help fund education, but a less attractive strategy for someone in fragile health. Families should also remember that other gifts to the same grandchild during the five-year window can affect how much remains sheltered.

3 articles · Updated · Yahoo Finance · Aug 1

$190,000 per grandchild can be moved out of a married couple’s taxable estate immediately by superfunding a 529 plan and electing five-year gift averaging on IRS Form 709.
The strategy works because 2026’s $19,000 annual gift-tax exclusion can be front-loaded over five years, letting one donor contribute $95,000 at once and a couple double that amount.
Four grandchildren would let a married couple remove $760,000 in one day, and any future investment growth on those 529 assets also stays outside the estate.
The main catch is a five-year mortality risk: if a donor dies before the window ends, the unused portion of the contribution is pulled back into the taxable estate.
The rule is grounded in Internal Revenue Code Section 529(c)(2)(B), making it a paperwork-driven estate-planning move rather than one requiring a separate legal structure.