SmartDeposit is dynamic and calculates your ability to invest based on the settings you choose. It adjusts to your spending habits and ensures you are invested in the market as much as you can be
SmartDeposit checks your account weekly to see if the projected balance from any scheduled deposits exceed the threshold you specify. As long as the bank balance - pending any scheduled deposits, is above said threshold, SmartDeposit deposits the difference in your Betterment account.
Auto-deposits can be set for multiple goals.
SmartDeposit can only be set for a single goal.