Does Alliant offer overdraft protection? Alliant offers overdraft protection65 as an opt-in service. If you opt in, we will honor checks, ACH debits, internal and external bill pay items, and debit card transactions drawn on your insufficient available balance. We will do so by transferring funds from another deposit or loan account, as you have directed under the Overdraft Protection plan agreement or per the terms of your applicable loan account, and by Alliant's Account Agreement and Disclosures. This service is free and an excellent option for members with backup funds. Learn more about Overdraft Protection. Note: Members with a Line of Credit may also sign up for Overdraft Protection linked to their Line of Credit. However, there is a $3 fee for each Line of Credit Overdraft Protection use.