2024 529 Contribution Limits Married Filing Jointly. As a single parent with three children and three 529 plans, you can contribute $18,000 to each plan annually. 529 plans for each state have their own contribution limits.

529 plans for each state have their own contribution limits. The ira contribution limits for 2024 are $7,000 for those under age 50, and $8,000 for those age 50 or older.