• Lodge a form by mail

    The following forms are available for your Australian business number (ABN) registration – to:

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

    You need to quote the reference number that is in brackets when ordering the form from the Australian Taxation Office.

    See also:

    • Last modified: 26 Oct 2018QC 373