Many 529 savings plans feature Vanguard funds and/or investment management. Choose a plan associated with Vanguard and compare it with other 529 savings plans.
Certain education savings withdrawals can be treated as a qualified education expense under the federal tax benefit; however, because each state makes its own rules, it's less clear whether account owners can receive a state tax break for such withdrawals, including K-12 tuition, apprenticeship program expenses, student loan repayments, and Roth IRA rollovers. To find out if you qualify for a state benefit, check the state where you pay state income tax—even if another state sponsors your 529 plan. You should consult your tax advisor for guidance.