Attorney-at-Law | Rechtsanwalt
Mario Perl, Dr., LL.M., CPA
+43 664 516 3886

Deutsch | English

Your law firm
specialized in tax matters
in Vienna | Austria.

Attorney-at-Law | Rechtsanwalt
Mario Perl, Dr., LL.M., CPA

Solutions for Tax Questions.

Your are reaching limits in finding tax solutions or would like to avoid unnecessary tax risks?
I am an attorney specialized in tax law and provide tax support in planning and implementation of projects and advice in all tax law questions.
Simple, fast, reliable, trustworthy with international experience and a comprehensive understanding of tax, legal and economic topics.
Tax law advice for tax advisors, lawyers, notaries, accountants, companies and individuals.
In the areas structuring & transactions, international tax law, tax analysis & optimization, tax proceedings & appeals.

cooperative. efficient. connected.

Advice for Advisors

I offer special services in tax law for tax advisors, lawyers, notaries and accountants – to optimize or avoid tax risks. Thereby focusing on the cooperation with the advisor to offer the client the best solution.

Cost Transparency

Cost transparency and efficiency are of highest importance. Quality has its price. However, it does not prevent a cost-efficient implementation of a project based on a lean cost structure.

Network & Contacts

I am permanently in contact with advisors in different areas and countries and built up a network. Based on that, I am able to recommend specialists in other areas to my clients, which bring them forward.

perl steuer recht / tax law -- your expert in tax | law


Structuring & Transactions

Tax-optimized structuring, advice and support for transactions


  • Choice of legal form and foundation
  • Structuring of enterprises
  • Reorganization and restructurings
  • Succession planning
  • Private foundations and asset management

Transaction advice and support

  • Share and asset deals, reorganizations (M&A)
  • Service contracts
  • Director's and executive contracts
  • Lease and licence contracts


International Tax Law

Tax advice and optimization in cross-border situations

Cross-border business activities

  • Establishment of branches
  • Foundation of subsidiaries

Cross-border investment and financing

  • Equity and debt

Cross-border services

  • Advice for Expatriates
  • Secondment of employees
  • Personnel leasing


Tax Law Analysis & Optimization

Legally profound analyses, opinions and assessments to tax questions, tax optimization

Tax analysis and opinions

  • Tax analysis of facts and circumstances
  • Assessments of tax questions
  • Tax opinions

Tax Optimization

  • Assessment of tax risks
  • Assessment of tax optimization potentials


Tax Proceedings & Appeals

Support in tax proceedings in front of tax authorities, tax courts and highest courts in tax matters

Tax proceedings in front of tax authorities

  • Private rulings
  • Tax audits
  • Applications and tax reclaim proceedings
  • Appeals and legal remedies

Appeals in front of tax courts

  • Appeal proceedings

Appeals in front of highest courts

  • Appeals to the Highest Administrative Court
  • Appeal to the Consitutional Court

internationally experienced.

perl steuer recht / tax law -- your expert in tax | law

about myself

Mario Perl, Dr., LL.M., CPA
Attorney-at-Law | Rechtsanwalt
2002-07 | Studies of Business Sciences
Vienna University of Economics and Business (Mag. rer. soc. oec.)

2003-07 | Studies of Law
University of Vienna (Mag. iur.)

2007-10 | Doctoral studies
University of Vienna (Dr. iur.)

2009-10 | Postgraduate Program International Tax Law
Vienna University of Economics and Business (LL.M.)
2007-09 | Scientific Researcher
Institut of Tax Law at the University of Vienna

2010-2012 | Tax Associate
CPA firm, New York

2013 | U.S. Certified Public Accountant in the State of New York (CPA)

2013-18 | Lawyer and Attorney-at-Law
Schönherr Rechtsanwälte GmbH

Since 2019 | Independent Attorney-at-Law

simple. fast. reliable. trustworthy.

perl steuer recht / tax law -- your expert in tax | law

contact & imprint

Attorney-at-Law | Rechtsanwalt
Mario Perl, Dr., LL.M., CPA
+43 664 516 3886
Ferstelgasse 1 Top 2, 1090 Vienna
Vienna, Austria

VAT ID ATU 71888601

Rules of Professional Conduct of Austrian Attorneys:
Supervision by the Bar Association Vienna:

General Terms and Conditions including private policy statement