Abnra - Australian Business Number Lookup
Abnra
ABN 21 954 283 977

O'CALLAGHAN, MARK G

Individual/Sole Trader

Registration Details

ABN
21 954 283 977
Business Name
O'CALLAGHAN, MARK G
ABN Status
Cancelled
Registration Date
5 February 2026
State
New South Wales
Postcode
2250
Entity Type
Individual/Sole Trader
Record Last Updated
6 February 2026

Goods and Services Tax (GST)

GST Status
Cancelled
GST Registration Date
6 February 2026

Other Names

Trading Name

  • M.G.O'Callaghan & Associates

Business Summary

O'CALLAGHAN, MARK G is a registered Australian business with a cancelled ABN status since 5 February 2026. The entity operates as an Individual/Sole Trader.

This business is located in New South Wales, postcode 2250.

This business was previously registered for GST but the registration has been cancelled as of 6 February 2026. You cannot claim GST credits on invoices dated after the cancellation date.

Data sourced from the Australian Business Register (ABR) bulk data extract. This record was last updated on 6 February 2026.

Change History

    • ABN Status
      ActiveCancelled
    • ABN Status Date
      1 October 20035 February 2026
    • GST Status
      ActiveCancelled
    • GST Status Date
      1 October 20036 February 2026
    • Record Updated
      1 September 20256 February 2026
    • Business Name
      O'CALLAGHAN, MARK GERARDO'CALLAGHAN, MARK G
    • Business Name
      O'CALLAGHAN, MARK GO'CALLAGHAN, MARK GERARD
    • Business Name
      —O'CALLAGHAN, MARK G
    • ABN Status
      —Active
    • ABN Status Date
      —1 October 2003
    • GST Status
      —Active
    • GST Status Date
      —1 October 2003
    • State
      —NSW
    • Postcode
      —2250
    • Other Names
      +M.G.O'Callaghan & Associates

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