
In Australia, a Unique Superannuation Identifier (USI) is a code that links an individual to their superannuation account. It is used in the SuperStream system to identify an APRA fund and/or its superannuation product, ensuring contributions are paid into the correct fund. Previously, super funds used a Superannuation Product Identifier Number (SPIN), Superannuation Fund Number (SFN), or ABN, but in 2014, these were replaced with the single USI. While most super funds now use a USI, self-managed super funds (SMSFs) may still use an ABN as they are not regulated by APRA. It is important to protect your USI and be vigilant about its use, as large amounts of money are held in superannuation accounts, making the sector vulnerable to hacking and scams.
| Characteristics | Values |
|---|---|
| Full Form | Unique Superannuation Identifier |
| Abbreviation | USI |
| Purpose | To identify an individual super fund and individual superannuation products |
| Use | Used in SuperStream to identify an APRA fund and/or its superannuation product which an employee (member) is contributing to |
| History | Introduced in July 2014 as part of the SuperStream system |
| Previous Identifiers | Superannuation Product Identifier Number (SPIN), Superannuation Fund Number (SFN), Australian Business Number (ABN) |
| Where to Find | Superannuation statement, online account, Australian Taxation Office’s Fund USI and SPIN lookup table, Super Fund Lookup portal, bank where savings account is maintained |
| Security Concerns | Vulnerable to hacking and scammers |
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What You'll Learn

The Unique Superannuation Identifier (USI) is a unique code
The USI is used to identify an individual's super fund and superannuation products, essentially acting as a code that links an individual to their superannuation account. It is important for employers to have an accurate USI for each employee to ensure that super contributions are paid into the correct fund or product.
Previously, Australians were required to supply their USI when starting a new job if they wanted to continue using their existing fund instead of joining the company's default offer. However, since the introduction of 'super stapling' by the Federal Government in 2021, workers now automatically retain their super fund when changing jobs, unless they choose otherwise.
While most super funds now use a USI, it is important to note that self-managed super funds (SMSFs) are not regulated by APRA and therefore do not have USIs. SMSFs typically use their ABN as an identifier and require an Electronic Service Address (ESA) to facilitate transactions through SuperStream.
There are several ways to find your USI, including checking your most recent superannuation statement or logging into your online account. Additionally, the Australian Taxation Office (ATO) provides a Fund USI and SPIN lookup table, and the Super Fund Lookup portal can also be used to find USI information. Given the significant amounts of money associated with superannuation accounts, it is crucial to be vigilant about protecting your USI and ensuring the security of your superannuation details.
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USI replaced older identifiers like ABN, SPIN, and SFN
The Unique Superannuation Identifier (USI) is used in SuperStream to identify an APRA fund and/or its superannuation product, which an employee contributes to. It was introduced in July 2014 as part of the SuperStream system and replaced older identifiers such as the Australian Business Number (ABN), Superannuation Product Identifier Number (SPIN), and Superannuation Fund Number (SFN) for funds regulated by the Australian Prudential Regulation Authority (APRA).
Before the Australian government mandated USIs, super contributions were usually referenced using either the SPIN or the ABN, in addition to the super fund product's name. Since all this information is included in the USI database, you can search for the USI if you know any one of the other identifiers. In some cases, the super fund trustees may have chosen to use the SPIN itself as the USI.
While most super funds now use a USI, self-managed super funds (SMSFs) may still rely on an ABN. SMSFs are not regulated by APRA, so they do not have USIs. However, to receive employer contributions through SuperStream, all SMSFs must have an ABN and an Electronic Service Address (ESA).
The ATO has published a Fund USI and SPIN (Super Product Identifier Number) lookup table to assist employers in obtaining new fund data required to send contributions using SuperStream. This tool allows employers to look up the USI and SPIN for a particular super fund. It is important to note that USIs may not have completely replaced SPINs, and in some cases, both identifiers may be required when conducting transactions involving super funds.
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USI is used to identify an individual super fund
The Unique Superannuation Identifier (USI) is a number used to identify an individual super fund and superannuation products. It is used in SuperStream to identify an APRA fund and/or its superannuation product, to which an employee (member) is contributing. A USI may represent an entire fund or be specific to individual products within it. Its primary purpose is to direct superannuation contributions accurately and securely to the intended fund, ensuring retirement savings are managed appropriately.
Previously, Australians needed to supply their USI when starting a new job and wanted to stick with the same fund, rather than joining the company's default offer. However, since the Federal Government introduced 'super stapling' in 2021, workers automatically take their super fund with them to their new job, unless they elect otherwise.
There are several ways to find your USI. The most common way is to look up your most recent superannuation statement or log on to your account online, where you can easily find your USI. Alternatively, you can contact the Australian Taxation Office (ATO) for access to your USI, or use the Super Fund Lookup portal. The ATO has published a Fund USI and SPIN (Super Product Identifier Number) lookup table to assist employers in obtaining new fund data required to send contributions using SuperStream.
It is important to be vigilant about protecting your USI and ensure the veracity of any messages on social media or via email that purport to be from your super fund. SMSFs are not regulated by APRA, so they do not have USIs. Instead, they use their ABN number as an identifier.
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USIs are used in SuperStream to identify an APRA fund
The Unique Superannuation Identifier (USI) is a number used to identify an individual super fund and/or superannuation products that an employee contributes to. USIs are used in SuperStream to identify an APRA fund. SuperStream is an administrative platform for processing super contributions.
Before the introduction of USIs in 2014, super funds used a Superannuation Product Identifier Number (SPIN), a Superannuation Fund Number (SFN), or an ABN. Now, USIs are used to direct superannuation contributions accurately and securely to the intended fund, ensuring retirement savings are appropriately managed.
USIs are unique codes that differentiate between super funds. A USI may represent an entire fund or be specific to individual products within it. It is important that employers have an accurate USI for each employee, as it allows them to identify the super fund and/or the superannuation product they need to pay their employees' super contributions into.
SMSFs are not regulated by APRA, so they do not have USIs. However, to receive employer contributions through SuperStream, all SMSFs must have an ABN.
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How to find your USI
The Unique Superannuation Identifier (USI) is used in SuperStream to identify an APRA fund and/or its superannuation product which an employee (member) contributes to. If you are a student, you can create your own USI in the Student Portal. It takes less than 5 minutes, and there is no minimum age requirement. You will need a valid form of verifiable Australian identification.
To create a USI, follow these steps:
- Go to the USI Registry System and have a valid form of ID ready.
- Agree to the terms and conditions.
- Select 'Create USI'.
- Select your evidence of identity document (you can see the types of ID you can use on the website).
- Enter your personal details exactly as they appear on your form of ID.
If you have undertaken any registered training since 2015, you may already have a USI. To find it, you will need to enter your email address, mobile number, date of birth, full name, gender, and town/city of birth. You will then receive an email or SMS containing your USI details. You can also find your USI by logging into your USI account from myGov if you have linked the two accounts.
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Frequently asked questions
A Unique Superannuation Identifier (USI) is a number used to identify an individual super fund and superannuation products. It is used to direct superannuation contributions accurately and securely to the intended fund.
You can find your USI by looking up your most recent superannuation statement or logging into your account online. You can also contact the Australian Taxation Office (ATO) or use their Fund USI and SPIN lookup table.
A USI is used to identify an individual super fund and/or superannuation product, whereas a SPIN is used to identify a specific product within a fund. USIs replaced SPINs in 2014 as the primary identifier for superannuation funds.
Yes, your employer will need your USI to identify the super fund and/or superannuation product they need to pay your super contributions into.



















