2021 - Investition in der Türkei, RC Gedächtniskirche, 26.01.2021, Berlin (together with M. Manzel) (Almanca);

2020 - Die Besteuerung der Zinseinkünfte gemäß des Doppelbesteuerungsabkommens zwischen Deutschland und der Türkei unter Berücksichtigung des automatischen Informationsaustausches über Finanzkonten in Steuersachen zwischen Deutschland und der Türkei, Deutsch-Türkische Gesellschaft e.V., 10.12.2020, Berlin (in German);

2020 - Oppurtunities of Taxpayer During and After Pandemic: Draft Law on Tax Debt Restructing, Digital Taxation Symposium, 27.10.2020, Pamukkale;

2020 - Steuerwelt waehrend und nach der Pandemie, RC Spree, 11.06.2020, Berlin (in German);

2019 - “Ability To Pay Principle” As A Tool For Ensuring Equality In Tax Law, 29th IVR World Congress, 7-12.07.2019, Luzern (in English);

2019 - Digital Transformation, Big Data, And The Right of Privacy of Taxpayers, 34th International Public Finance Symposium / Turkey, 24-27.04.2019, Antalya;

2018 - Taxation System In The New Presidential Government Model, 8th Turkey Accounting Expertises Congress, 06.12.2018, Istanbul;

2018 - Instruments of Transparency Towards The Tax Administration (Panel 2), and Limitations of Transparency and Protection of The Taxpayer (Panel 4) (as general reporter), EATLP Annual Congress 2018, 07-09.06.2018, Zurich (in English);

2018 - Establishing Tax Consciousness and Importance of Appropriate Tax Education, 14th Tax Congress of Turkey, 06-07.04.2018, Istanbul;

2018 - Tax Evasion Crime Committed by False or Misleading Documents, Congress About Legal Developments, 29.03.2018, Istanbul;

2017 - Limits of Taxation Intervention in The Right of Privacy and Protection of Personal Data, VEHUP 4th National Congress, 20.11.2017, Alanya;

2017 - Do Tax Incentives bring us to the Goal? Evaluation of Tax Incentives for R & D, 7th Turkey Accounting Expertises Congress, 05.11.2017, Istanbul;

2017 - Meaning, Purposes and Effects of Tax Transparency, Tax Transparency - Preparatory Seminar for the EATLP Congress 2018, 06-07.04.2017, Istanbul (in English);

2016 - Transfer Pricing and CbCR, Problems of International Taxation, IFA Region Meeting, 27-28.10.2016, Tiflis/Georgia (in English);

2016 - Fair Tax Base, Ideals for Taxation of Income and the Draft of Income Tax Law, VEHUP 1st National Congress, 02.05.2016, Istanbul;

2015 - Decriminalization of Tax Law by Administrative Penalties on Tax Duties, Surcharges and Penalties in Tax Law, EATLP Annual Congress, 29.05.2015, Milano (in English);

2015 - Identifying Arm’s Length Price in Transfer Pricing, Current Developments in International Tax Law and its Effects on Turkey, VEHUP 1st Annual Congress, 03.11.2015, Istanbul;

2015 - Discretionary Powers of the Tax Administration, Magna Carta, Were Freedom Seeds Spread Eight Hundred Years Ago Widely Enough?, Law Faculty of Bahçeşehir University, 09.10.2015, Istanbul;

2015 - Authorization of Administration in the Field of the Taxation, Magna Carta: The 800th Anniversary of the Constitution From Tax Window, Law Faculty of Yeditepe University, 13.05.2015, Istanbul;

2015 - Taxes in the Federal Republic of Germany, Investment Opportunities in State of Mecklenburg-Vorpommern, Turkish-German Chamber of Commerce, 07.05.2015, Istanbul;

2015 - Evaluation of Taxes on Income, Public Finance and Tax System: Reform or Revision?, Association for Independent Industrialists and Businessmen (MUSİAD), 24.02.2015, Istanbul;

2014 - Tax Tariff and Tax Justice, System Problems and Current Developments in the Value Added Tax, 6th International Public Finance Law Symposium, 17.11.2014, Istanbul;

2013 - The Principle of Legality - in the Tax Law - As a Sub-Principle of the Legal Certainty, Legal Certainty Principle, Platform for Public Lawyers, 08-09.11.2013, Ankara;

2013 - Functionality of “the Minor Infraction of Rules”, International Perspective of Turkish Criminal Law Tax System, Law Faculty of Maltepe University, 22.03.2013, Istanbul;

2013 - The Crime of the Breach in Tax Secrecy, The Problems and Restructuring of the System of Tax Sanctions, 5th International Finance Law Symposium, 20-21.03.2013, Istanbul;

2012 - Das türkische Einkommensbesteuerungssystem, das Deutsch-Türkisch Doppelbesteuerungsabkommen, Deutsch-Türkisch Juristenverein, 26.10.2012, Berlin (in German);

2012 - The Structure, Problems and Solution Proposals of Tax Audit in Turkey, Turkish Tax Audit System in the Light of Practices in Developed Countries, Association of Certified Public Accountants, 29.05.2012, Ankara;

2012 - Advance Pricing Agreements and the Constitutional Limits on these Agreements, Transfer Pricing in International Discussion, 3rd International Public Finance Law Symposium, 6.03.2012, Istanbul (repeated in the Panel on Distribution of Hidden Gain Through Transfer Pricing, State Council 19.06.2012, Ankara);

2010 - Tax Audit in Turkish Law, Lawful and Effective Public Supervision, 2nd International Public Finance Law Symposium (Humboldt Kolleg), 26-27.04.2010, Istanbul;

2010 - Requirements for a Good Tax System and Tax Justice in Addition to a Well-Established Constitution, Financial and Tax Expectations from Constitution, Law Faculty of Bahcesehir University, 08-09.01.2010, Istanbul;

2008 - Change Process in Tax Penal Law and Effects of this Process on Tax Penalty System, Panel on Tax Penalty System: Current Situation, Problems, Clues of Change, Association for Tax Auditors & Istanbul Chamber of Commerce, 08.01.2008, Istanbul;

2007 - Administrative Tax Offences and Sanctions in Turkish Tax Procedure Law, Administrative Penal Law, 1st International Public Finance Law Symposium, 20-21.09.2007, Istanbul;

2007 - Limitation of Taxation Interventions on Human Rights and Freedoms, Public Leadership and Individual Autonomy in Public Law, Private Law and Criminal Law Areas Symposium, Law Faculty of Istanbul Kultur University & Istanbul Bar Association, 28-29.05.2007, Istanbul;

2006 - Administrative Tax Offences and Penalties, 138th Anniversary of State Council and Administrative Justice, 11.05.2006, Ankara;

2002 - Does the Demand for Fair Competition overcome the Difficulties with the Consolidated Corporate Tax in the European Union?, Transition Process to the European Union and Adaptation of Turkish Public Finance Law, 17th Public Finance Law Symposium of Turkey, 22-25.05.2002, Fethiye;

2002 - Unfair Tax Competition in European Union, Crisis Economy and Public Finance, 6th Tax Congress of Turkey, Publications of Associations of Alumnies MUIIBF & IYT, 19-20.04.2002, Istanbul;

2001 - Compliance with the Code of Conduct for Business Taxation in European Union, Efforts to Harmonise Turkish Tax Legislation with EU Tax Legislation in the Light of Accession Partnership Document and the National Program towards EU Membership, Law Faculty of Marmara University, 04.06.2001, Istanbul;

2000 - Federal German Finance Administration and Principles of Administrative Procedure, Taxes in the Year 2000 and European Union, 5th Tax Congress of Turkey, 28-29.04.2000, Istanbul;

1999 - The Meaning of the Term “Income” According to the Law No. 4369, How Should Incomes be Taxed in the 21st Century?, Faculty of Economics and Administartive Sciences of Marmara University & Konrad Adenauer Foundation, 04.12.1999, Istanbul;

1999 - The Offence of Failure to Furnish Information, How should Crime and Punishment in the Tax Law be Addressed in the 21st Century, Law Faculty of Marmara University, 31.05.1999, Istanbul.