Nothing but speed! Sometimes you need funds right away. Instant Floats use a payment transfer system (which charges us a small fee) to work with your debit card to get the money into your account within minutes. Just a heads up, you will have to pay us back that extra fee on top of your Float.
Standard Floats use the traditional ACH transfer method, which is free, however it can take 1-3 days to be deposited into your account.