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Can grandparents open or contribute to a 529?
Yes — and they should. Grandparent 529 contributions are one of the most tax-efficient gifts in the entire tax code. Here's how to set one up.
Grandparents have a unique superpower in the 529 world: they can superfund a grandchild's account with up to five years of gift-tax exclusion in a single contribution — $95,000 individually or $190,000 per couple as of 2026 limits.
Two ways grandparents can help
1. Open their own 529 with the grandchild as beneficiary. They control the account, they get any state tax deduction, and they can change the beneficiary later.
2. Contribute to the parent's existing 529 via gift link. Easier, no paperwork, and the parent still gets the state deduction.