ABR Help Topics
You are required by law to ensure your Australian business number (ABN)
registration details are kept up to date. You must notify the Registrar
of any changes to your business details within 28 days.
You can update
your business details by :
If your Tax agent number (TAN)
is recorded against your client’s ABN record, you can update certain client
details through the Tax Agent Portal.
The electronic version of this document is the only authorised version.
Last updated: 14/03/2013
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