Add a 529 plan
Use the 529 plan account type to track your education savings account. When you add a 529 plan to Quicken, Quicken automatically marks the account as tax-deferred.
...
- Click the Add Account icon on the top right of the Customize About the Account Bar.
- Click 529 Plan.
- Follow the on-screen instructions.
Your other option is to add your 529 plan to Quicken with the basic procedure for adding an investment account.