Deposit Interest Rates

General

Rates effective 29th May 2026. You should consider the IMB Member Guide to Transaction Banking - Product Disclosure Statement before making a decision about IMB products and facilities. Target Market Determination available here. Fees and charges may apply, see the PDS – Fees, Charges and Limits for more details.  

Interest on all deposits is calculated on the daily balance at a daily rate equivalent to the annual rate divided by 365. Interest rates are paid on the entire balance of the account, except for Everyday 50PLUS, Reward Saver and Reward Saver Kick Start accounts. For these accounts, a different rate applies to the portion of the balance in each tier. E.g. The interest paid on that part of the balance between $10,000 and $49,999.99 is different to the interest paid on the first $9,999.99 of the balance.

Rates and features

1. Standard Variable Bonus interest is payable when bonus interest criteria are met - a minimum $10 deposit and no withdrawals are made in the calendar month.

2. To earn bonus interest account holder must make a minimum $20 deposit and no withdrawals per month. If bonus interest criteria are not met for the calendar month, both the Standard Variable Bonus Interest and Kick Start Bonus Interest Rate are forfeited.

3. The Kick Start Bonus Interest Rate is a variable interest rate payable for the duration the account holder is eligible to hold a Reward Saver Kick Start account. Also refer to general information above.

4. To earn bonus interest the account holder must make a minimum $50 deposit and no withdrawals per month. If bonus interest criteria are not met for the calendar month, both the Standard Variable Bonus Interest and Introductory Fixed Bonus Interest Rate are forfeited.

5. Introductory Fixed Bonus Interest Rate is payable for the first 4 interest payments for new accounts opened from 18th March 2026, for new or existing Members who have not held a Reward Saver account before.

6. If there are any withdrawals between January 1 and October 31 the account will be closed and the bonus forfeited.