What happens if you contribute too much to a 529 plan?
Contributing more than a 529 plan allows might result in taxes and penalties. If you over-contribute to a 529 account beyond the 529 limit, one option is to change the primary beneficiary of the plan to another child to be used for their education savings. You can also consider rolling the funds into a Roth IRA for the original beneficiary. Either option can help you avoid a taxable event.