If you're making regular withdrawals from your brokerage account for income, you may have to sell investments at a loss during a down market and miss out on potential future gains. (nylinvestments.com)
Make regular withdrawals from your credit union account to be transferred to the 529 plan. (studentloansguy.com)
They aren't intended to be used like a checking account, with regular withdrawals or transfers. (mybanktracker.com)