The USI is used to identify different super funds and specific super fund products. It is different to your member account number. You can find your USI on your super fund’s website or by contacting your super fund directly.
An ESA is used so the fund can receive electronic messages and payments from your employer using SuperStream. You can find your ESA by contacting your SMSF messaging provider or through your SMSF administrator, tax agent, accountant or bank.