Can I use my savings account as a funding source for Simple Savings? December 04, 2020 18:58 Currently, you can only use a checking account as a funding source for Simple Savings. You can change your funding source here: https://go.asktrim.com/simple_savings/transfers Related articles My phone number is associated with an existing account. How many funds transfers can I make every month? I don’t see the transfer in my Simple Savings account.