• Update your ABN details

    It's your responsibility to maintain your Australian business number (ABN) details.

    You must update your details within 28 days of becoming aware of changes.

    The fastest way to update your details is online using an AUSkey or Manage ABN Connections. All changes made to your ABN online will take effect immediately.

    Update your ABN

    What can't be updated

    Legal names for the following entities:

    • individuals and sole traders who need to contact the ATO directly
    • companies in the business names register that need to contact the Australian Securities & Investments Commission (ASIC). ATO and ASIC will communicate the changes to update the ABR.

    If you're unable to update details using the above link, contact us or lodge a form by mail.

    • Last modified: 21 Jun 2018QC 205