All banks, including Ally, use the
(ACH) process to transfer funds electronically from one bank to another. It's safe, secure and at Ally, it's free.
Transfers usually take 3 business days. However, clearing houses aren't open on the weekends and so that will affect transfer times.
For incoming Ally transfers, interest starts to accrue as soon as the funds are received on Day 3. However, to help keep you and the bank protected from fraudulent activities, we conduct a risk review of all incoming transfers. During this time, the transferred funds are held until the very end of the day before they're available to you.