Heritage Bank Limited is Australia's second-largest mutual bank. Its head office is in Toowoomba, Queensland.

A mutual savings bank is a financial institution chartered by a central or regional government, without capital stock, owned by its members who subscribe to a common fund. From this fund, claims, loans, etc., are paid. Profits after deductions are shared among the members. The institution is intended to provide a safe place for individual members to save and to invest those savings in mortgages, loans, stocks, bonds and other securities and to share in any profits or losses that result.