With overdraft account transfer, funds from your RCU savings and/or money market account will be transferred to your checking account in $100 increments to cover a transaction you do not have sufficient available funds to pay. This is a free service, limited to 6 transfers per month by Federal Regulation D.  To set up shares to be used for Overdraft Account Transfer, visit your local branch or call 1 (800) 479-7928.