If you have an integrated 529 plan, you may update payments into the 529 account directly from your Betterment account. In order to update your payment information, please log into your Betterment account from a web browser. From here, choose your 529 Plan goal from the left hand side. You can either make a one time deposit from a linked bank account by choosing Deposit in the right hand corner, or set up an auto-deposit.
To set up an auto deposit, please choose Set Up next to your goal. This will then prompt you to either select to fund through payroll contributions or through a connected bank account. Contributions through payroll will allow you to qualify for any employer matching contributions set up by your employer, but making contributions through a connected bank account will not.