Contact the ABR

Business information enquiries for applying, cancelling, or updating your ABN.

In Australia:

13 92 26

Outside Australia:

+ 61 2 6216 1111

Self-managed superannuation funds (SMSF), all enquiries.

13 10 20

Government agency only enquiries:

• access and use of Australian Business Register (ABR) non-public data
• access and use of ABR Explorer as a reporting tool for ABR information
• to advise us of a breach in use of data
• ABR Explorer login error messages.

13 92 26 (Select option 2)

Complaints, objections, and appeals

If you are not satisfied with a decision that has been made on behalf of the Registrar of the Australian Business Register, contact us first so we can try to resolve the issue.

In Australia:

13 92 26

Outside Australia:

+ 61 2 6216 1111

Reporting fraud

If you suspect fraud, tax evasion or shadow economy behaviour, we encourage you to report it.



Reporting is strictly confidential and can be anonymous.

Business names

To register a business name or manage your business name details you must contact Australian Security Investments Commission (ASIC).

In Australia:

1300 300 630

Outside Australia:

+61 3 5177 5407

National Relay Service (NRS)

If you have difficulty hearing or speaking to people who use a phone, you can contact us through the NRS. There are 2 easy steps:

• select your preferred NRS access point
• provide the ATO phone number you need to phone.

Contact us using the National Relay Service (NRS) call numbers.

Translating and Interpreting Service (TIS)

If you have difficulty speaking or understanding English, the service will phone us with an interpreter, so we can help you with your query

In Australia:

13 14 50

Outside Australia:

+61 3 9268 8332

To request your ABN details be suppressed or if we have asked you to write to us.

The Registrar

Australian Business Register

PO Box 3373

PENRITH NSW 2750

To obtain an extract of your ABN details or to obtain a certified copy of someone else's public ABN details.

The Registrar

Australian Business Register

GPO Box 9977

SYDNEY NSW 2001

Request a paper form.

Use the ATO Publication Ordering Service to have a paper copy mailed to you for:

• change your ABN details – Change your registration details (NAT 2943)
• cancel your ABN registration – Application to cancel registration (NAT 2955)