Aigner Buzanich Attorneys at law is a law firm established in Austria engaged in the practice of Austrian and international tax law. Chambers Europe 2018: Chambers Commentary (based on the Chambers research)  What the team is known for  Dynamic tax boutique assisting with Austrian and international tax matters. Advises on corporate tax planning, tax structures and income stream optimisation. Also assists with a wide variety of tax issues involving M&A and finance transactions as well as VAT, tax restructuring, litigation and due diligence. Represents real estate companies alongside regional and international financial institutions. Also acts for private individuals.  Strengths  Market commentators describe the team as a "tax law boutique" that is "a very good small tax practice."  Work highlights  Assisted Macquarie with the tax aspects of its acquisition of a 49% stake in Gas Connect Austria. Advised IK Investment Partners on a number of tax matters such as Austrian tax due diligence and acquisition structuring in relation to its acquisition of Messerschmitt Systems. Notable practitioners  Hans-Jörgen Aigner is respected for his work relating to investment fund taxation and corporate tax matters, including the taxation of bond issuances. Aigner also assists clients with the tax classification of new products and represents them in tax litigation. Herbert Buzanich advises clients on transactional tax matters, as well as representing them in tax audits and tax investigations. Market commentators describe him as a "highly qualified and well-organised lawyer."