ABN Finder — Find Your ABN for Free

Fill in the form below. Enter your details — the entire process takes less than a minute.

Get your result instantly.

✅ If your ABN is active — it will be displayed on screen and sent to your email.

⚠️ If your ABN is cancelled — we'll show you how to reactivate it quickly.

1 Your details

First Name: Fillout your first name

Middle Name: Fillout your middle name

Last Name: * Fillout your last name.
Please enter your legal name or one previously submitted to the ATO for your TFN.

Email Address: * Please enter your main email address. Please check carefully for typos and other mistakes. Your confirmation data will be sent to this email address.

Mobile Phone Number: * Enter your Australian mobile number, e.g. 0412345678 — 10 digits, numbers only (no spaces or +61).

Date of birth *

Must match what the ATO has on file

Tax File Number (TFN): * The TFN itself it's 9 digits, with a check digit. Individuals received a 9 digit TFN. Your Tax File Number (TFN) can be found on any official TAX Office documents. We may contact you to provide your TFN if the ATO cannot verify your information with the details you have provided as a TFN number is required for an ABN number to be issued.

📄 TFN is optional but recommended. Providing your TFN helps the ATO match your identity faster. Your TFN can be found on any ATO letter, your tax return, or through myGov → ATO → My profile.

2 Terms & Conditions

I have read and accepted the Terms of Service and hereby authorise ROSS AND NOBLE PTY LTD (ABN 49 660 334 298) to act on my behalf in relation to this application, including submitting the relevant request to the Australian Business Register (ABR) and adding me to its tax agent portal where required for the purpose of processing, managing and completing this request. *

The information provided in this application (including attachments if applicable) is true and correct *

🔒 Your information is encrypted and never shared with third parties. This service is completely free.

Already know your ABN? Use our ABN Lookup to check its status, GST registration, Business Name, and more.

🔍 Go to ABN Lookup

🗑️ ABN showing as cancelled?

We can reactivate your ABN. Most reactivations are processed within the hour. Without an active ABN, clients must withhold 47% of your payment.

✅ Reactivate My ABN — $89

🔍 ABN Finder

🗑️ ABN showing as cancelled?

🚀 Don't have an ABN yet?