What is superfunding a 529 and how does the 5-year gift election work?

Superfunding means front-loading up to five years of annual gift-tax exclusions into a 529 in a single year, then electing to spread the gift evenly over five years for gift-tax purposes. In 2025 the annual exclusion is $19,000 per recipient, so one person can contribute $95,000 (or $190,000 for a married couple splitting gifts) at once without using lifetime exemption. You make the election by filing IRS Form 709 for the contribution year. The appeal is time in the market: a large early deposit has more years to compound tax-free. The trade-offs are real – you generally can't make additional excludable gifts to that beneficiary for five years, and if you die within the period a prorated portion may return to your estate. Superfunding suits grandparents or parents with cash to deploy and a long runway before college.