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Jonathan Ortner

About Jonathan

Jonathan Ortner is a Senior Associate in the firm’s taxation group. Jonathan practices in all areas of direct and indirect tax with a particular focus on the taxation of trusts and corporate income tax, mergers and acquisitions and funds management.

Winner of the 2017 'Emerging Tax Star' award

The Tax Institute's "Tax Adviser of the Year" Awards

Jonathan has also advised extensively on: cross-border taxation issues; employment taxes, including the tax treatment of employee share schemes, termination payments and fringe benefits; and the GST implications of transactions and dealings in the development of property. 

In 2017, Jonathan won the 'Emerging Tax Star' award at The Tax Institute's "Tax Adviser of the Year" Awards.

Using his technical tax knowledge, Jonathan works with clients to obtain commercial and practical outcomes.  He has particular experience in dealing with the Australian Taxation Office on complex tax issues in a dispute resolution context.

Prior to joining Arnold Bloch Leibler in 2012, Jonathan worked in a financial advisory role at a top investment bank.

Jonathan holds a Bachelor of Commerce and a Bachelor of Laws from the University of New South Wales. In addition, Jonathan is currently undertaking a Masters of Tax at the University of Sydney.


Practice focus

Jonathan’s practice focuses on the following areas:

  • advising clients on, and managing, all stages of ATO audits and reviews of clients’ income tax and GST affairs (mainly in relation to large business, high wealth and private group audits) and resolving disputes with the ATO;
  • advising on the GST implications of property transactions, cross border transactions and on the sale of businesses;
  • advising clients on, and managing, all stages of making a voluntary disclosure, including liaising with the Australian Taxation Office;
  • corporate and international income tax, including the Australian tax implications of mergers and acquisitions, consolidation, group restructuring (solvent and insolvent), investment into and out of Australia, and the application of Australia’s tax treaty network;
  • taxation issues affecting individuals including the taxation of offshore assets and structures, issues and disputes concerning tax residency and advising on asset protection;
  • taxation of trusts and funds advice; and
  • employee incentive arrangements and employment related taxes.


Directorships & memberships

Jonathan is a Fellow of the Taxation Institute of Australia.


Jonathan has acted for both domestic and international clients in a wide range of taxation matters, including:

  • a listed company: in relation to the design and implementation of a cross-border employee share scheme;
  • a listed company: in relation to the design and implementation of an executive performance rights scheme;
  • AsheMorgan: in relation to taxation issues arising from a series of refinancings/debt restructures in the property sector;
  • Vector Limited: in relation to the cross-border taxation issues arising from the roll-out of smart meters for the supply of electricity in NSW, Australia;
  • large domestic and international financiers: in relation to structuring and taxation advice for various domestic and cross-border lending arrangements;
  • high net worth clients: in relation to complex tax disputes with the Commissioner of Taxation;
  • various high net worth individuals: in relation to the lodgement of voluntary disclosures with the Australian Taxation Office; and
  • various not-for-profit clients: in relation to applications for income tax exempt and deductible gift recipient status.

Contact Jonathan Ortner

Recognition & publications

Take a look at Insights & News articles referencing Jonathan Ortner.