Firms in the Spotlight Tax



Tax is one of the most valuable practices at DANİŞ LAW OFFICE and we offer a wide range of services.

View Profile...

Kaya Koksal

Kaya Koksal logo

Kaya Köksal is a full-service law firm based in Istanbul, providing services to both local and international clients. Founded by Selda Taşyürek Köksal, after ten years of experience in one of the most prominent law firms in Turkey, and Yılmaz Kaya, who worked for 11 years at the Tax Inspectors Board, the most prestigious authority …

View Profile...

Tax in Turkey

Esin Attorney Partnership, a Member Firm of Baker McKenzie International, a Swiss Verein

Esin Attorney Partnership, a Member Firm of Baker McKenzie International, a Swiss Verein advises multinational corporates across the infrastructure, healthcare, financial services, travel, and technology sectors on digital taxation, tax audits, disputes, restructuring, and planning. Bringing over 25 years to the group, Erdal Ekinci leads the practice with Orhan Pala who utilises a background as a tax inspector at the Ministry of Finance. Key support is provided by senior associate İpek Beril Bozoğlu.

Practice head(s):

Erdal Ekinci; Orhan Pala

Other key lawyers:

İpek Beril Bozoğlu


‘The team is very professional in every step. They are unique in every area.’

‘The team is super responsive and has high technical capacity.’

‘Expertise, communication, and relationship-building.’

GSG Attorneys at Law/GSG Hukuk

Leveraging its position as part of the PwC global network, GSG Attorneys at Law/GSG Hukuk provides a comprehensive service to globally recognised corporations operating across a broad range of sectors, notably technology, pharmaceuticals, electronics, real estate, and entertainment. The practice that is headed by Ezgi Turkmen, who brings a background in tax auditing and extensive experience to complex tax and customs disputes. Director Gülcan Caliskan, specialises in tax inspections, while Öykü Ocal is another key member of the team.

Practice head(s):

Ezgi Turkmen

Other key lawyers:

Gülcan Caliskan; Yeşim Dikici; Oyku Ocal; Fatma Zelal Duran; Ozge Erkis; Aykut Alp Kapusuzoğlu


‘The communication and alignment between the team members is superb. While communicating with the team, any member is quite knowledgeable about the matter in hand.’

‘The most striking aspect of the team is the total comprehension as a whole. Every member of the team portrays a comprehensive understanding of the subject matter simultaneously.’

‘The flexibility of the individuals is striking. Each member of the team is available to align with the expectations of the customer.’

‘Ezgi Turkmen and Yesim Dikici are smart, reliable, and know what they are talking about.’

‘The team is always accessible, they provide different perspectives, and in-depth coverage of topics.’

‘The team are always able to meet our requirements quickly and efficiently.’

‘Professional and constructive approach, responsiveness, and high level know-how.’

‘All individuals within GSG Law team have a high level of knowledge with their education and past experience. In addition, their communication and analysis skills are their strongest aspects that distinguish them from other competitors.’

NAZALI Attorney Partnership

With extensive experience in advising multinational corporates across the energy, automotive, and IT spheres, the tax boutique firm NAZALI Attorney Partnership counts various international household names on its client roster, notably Siemens, Samsung, and LG Electronics. The team’s full-service offering encompasses tax litigation, consultancy, and the tax aspects of M&A and transfer pricing. The practice is jointly headed by Ersin Nazali, who utilises his background as a tax inspector in the Revenue Administration in tax-customs disputes, customs litigation, and transfer pricing; experienced litigator and mediator Gözde Saruhan Berk; and senior associate Begüm Solak Ekler, a specialist in tax-free restructurings.

Practice head(s):

Ersin Nazalı; Begüm Solak Ekler; Gözde Saruhan Berk


‘Our requests are followed as a team. When there is an urgent issue, someone from the team is always in contact.’

‘Their quick replies, ability to follow up-to-date information very closely, agility and accessibility make a difference compared to their international alternatives.’

‘Strong communication and on-site suggestions focused on solving the problems in a practical way with their expertise.’

Key clients

Türk Henkel Kimya Sanayi ve Ticaret Anonim Şirketi

Siemens Mobility Ulaşım Sistemleri Anonim Şirketi

AKKUYU Nükleer Anonim Şirketi

FujiFilm Dış Ticaret Anonim Şirketi

TPI-Kompozit Kanat Sanayi ve Ticaret Anonim Şirketi

Bosal Metal İşleme Sanayi Anonim Şirketi

Beymen Perakende ve Tekstil Yatırımları Anonim Şirketi

GMM Corporation Ltd||GMM |Services Yazılım Hizmetleri Ticaret Anonim Şirketi

Hekim Holding Anonim Şirketi

“Modern Karton Sanayi ve Ticaret Anonim Şirketi” a member of Eren Holding Anonim Şirketi

PROCAT Danışmanlık Yazılım Telekomünikasyon Pazarlama Ticaret Anonim Şirketi

Samsung C&T Corporation Merkezi Kore Cumhuriyeti Türkiye İstanbul Şubesi

Banvit Bandırma Vitaminli Yem Sanayi A.Ş.

ASUS Bilgisayar Sistemleri Ticaret Ltd. Şti.

LG Electronics Ticaret Anonim Şirketi

Nordex Enerji A.Ş.

TetraPak Paketleme Sanayi ve Ticaret Ltd. Şti.

Mondi Kalenobel Ambalaj San. ve Tic. A.Ş.

Yemek Sepeti Elektronik İletişim Perakande Gıda Lojistik A.Ş.

Logo Teknoloji ve Yatırım A.Ş.

CMS Jant ve Makina Sanayi A.Ş.

Roche Müstahzarları Sanayi A.Ş.

Adjust GmbH

AdColony (acquired by Digital Turbine)

Mobilike Mobil Reklam Pazarlama ve Ticaret Anonim Şirketi

Belenco Dış Ticaret Anonim Şirketi

Kopaş Kozmetik Pazarlama ve Sanayi Anonim Şirketi

Beyçelik Gestamp Otomativ Sanayi Anonim Şirketi ||Beyçelik Gestamp Şasi Otomotiv Sanayi Anonim Şirketi ||Çelikform Gestamp Otomotiv Anonim Şirketi

Vansan Makina Montaj ve Pazarlama A.Ş.

Equant İstanbul Telekom A.Ş. (Orange)

ORKA Holding A.Ş.

SAGUN Group (Kemal Balıkçılılık, TSM Deniz, Sagun Su, Sagun Aqua, Biomar Sagun, Marines, Merlion)

Bien Trading Dış Ticaret A.Ş.

Polimer Kauçuk Sanayi ve Pazarlama A.Ş.

Pilenpak Ambalaj Sanayi ve Ticaret Anonim Şirketi

ADMD/Mavioglu & Alkan Law Office

With ‘excellent skills, deep knowledge, and experience combined with personalized service‘, ADMD/Mavioglu & Alkan Law Office is a key port of call for various agriculture, energy, retail, and technolgy entities. The team’s full service covers complex tax litigation, audits, compliance, succession planning, and the tax aspects of restructuring and M&A. The practice is headed by firm co-founder Duygu Alkan, who also serves as the senior partner for the firm’s dispute resolution team. Co-founder and firm managing partner Orhan Yavuz Mavioglu brings expertise in litigation and investment tax matters. Other key figures include tax compliance specialist Barlas GucluSevgi Durmus, who is knowledgeable of matters involving double taxation treaties and applications; and Mine Tamusta.

Practice head(s):

Duygu Alkan

Other key lawyers:

Orhan Yavuz Mavioglu; Barlas Guclu; Sevgi Durmus; Mine Tamusta


‘ADMD is very easy to work with and very dependable. They are very fast with their answers and solutions which are understand and implement.’

‘Orhan Yavuz Mavioglu and Duygu Alkan are impressively knowledgeable.’

‘Orhan Yaviz Mavioglu provide clear guidance, seasoned expertise, and a steady hand in navigating uncertain tax matters.’

‘ADMD is a top-tier firm that offers reasonably priced, high-quality, and personalised services, exemplifying excellence.’

‘Orhan Mavioglu is truly exceptional in his role as a tax advisor, as he possesses a comprehensive knowledge of all the intricate details, incentives and regulatory alerts related to taxation. Duygu Alkan excels as an excellent litigator, particularly when it comes to resolving tax-related disputes effectively’

‘Orhan Yaviz Mavioglu’s knowledge and network on tax issues is unparalleled.

‘Excellent skills, deep knowledge and experience combined with personalized service.’

‘Mr. Yavuz Mavioglu consistently exhibits precision in his work, displaying a comprehensive understanding of technical tax issues. He is known for his superb responsiveness, brilliance, and proactive approach. In addition, Barlas Guclu is distinguished for his focused and diligent work as a tax attorney.’

Key clients

Alight (NGA)

Al Tayer

BICS Telecom



Europe Emirates Group




Mitsui Bussan

Montleman SA


Remington Seeds

Sam Gas

Standard Club

Telecom Italia

Urus Investment

XOL Automation


Work highlights

  • Advised Remington Seeds on transfer pricing analysis and implementation methodology.
  • Assisted Enersys with employee income tax withholding review and implementation.
  • Assisted Inventronics on the taxation review of various business asset acquisitions.

Hergüner Bilgen Üçer Attorney Partnership

Praised for its ‘client-oriented and business-minded approach‘, Hergüner Bilgen Üçer Attorney Partnership is a strong choice for domestic and multinational corporates operating across the manufacturing, oil and gas, energy, banking, aerospace, hospitality and real estate sectors. The team’s full service offering covers multi-jurisdictional tax litigation and assistance matters involving stamp, corporate, and income tax . The practice is headed by experienced tax litigators Ayşe Hergüner Bilgen and Tolga Danışman, with key support provided by counsel Zaman Özer, a specialist in risk management and tax compliance.

Practice head(s):

Ayşe Hergüner Bilgen; Tolga Danışman

Other key lawyers:

Zaman Özer


‘Extremely capable lawyers. Their client-oriented and business-minded approach stands out.’

Key clients

Odea Bank A.S.

LM Wind Power Blades Turkey

ST Martins Şişli Gayrimenkul |Yatırımcılığı Tic. A.S.

Çırağan Sarayı ve İşletmeleri Geliştirme İnşaat ve Turizm A.Ş.

Özdirekcan Dündar Şenocak Ak

Gide Loyrette Nouel A.A.R.P.I.-associated firm Özdirekcan Dündar Şenocak Ak assists multinational financial institutions and corporates across the tourism, manufacturing, and energy sectors, in various tax matters ranging from disputes, VAT, income tax, as well as the tax aspects of joint ventures, M&A and restructurings. The group is headed by seasoned tax litigator Bülent Özdirekcan and associate Mustafa Karadaş. Tuygun Can Elbek left the firm.

Practice head(s):

Bulent Ozdirekcan; Mustafa Karadaş

Key clients

Société Générale Milano

Club Med



Believe SA

BNP Paribas

Axa Mediterranean Holding



Ersa Construction

Cuatrecasas Law Firm

LCA Studio Legal

Work highlights

  • Advised Société Générale Milano on tax regimes applicable to a cross-border financial lease delivered to SunExpress, a joint venture formed between Turkish Airlines Inc and Lufthansa.
  • Advising Club Med SA on a right of easement which has been granted for a 49 year period of time by the Turkish authorities to the benefit of the fully owned Turkish subsidiary of Club Med SA.
  • Advised Saint-Gobain within the scope of the formation of a joint-venture with the Turkish Dalsan Group, a manufacturer in Turkey and exporter of construction solutions.

Penezoglu Law Firm

Penezoglu Law Firm is a strong choice for domestic and multinational corporates operating in the energy, entertainment, and real estate spaces on tax planning, risk analysis, administration, and litigation. The practice is headed by experienced litigator and founder Yusuf Gokhan Penezoglu, who brings expertise to international tax structuring and consultancy services. Other key figures include senior associates Zeynep Kilavuz, Ece Sara Tari and Ayse Uzun Nurili.

Practice head(s):

Yusuf Gökhan Penezoğlu

Other key lawyers:

Zeynep Kilavuz; Ece Sara Tari; Ayse Uzun Nurili


‘Yusuf Gokhan Penezoglu is already a well-known market leader in his field. Ece Sara Tari makes you feel well taken care of. She provides you with multiple options and once you make a selection, you are provided with the best result.’

‘Penezoglu Law firm is very professional and knowledgable of the Turkish tax and legal system. They have great customer service.’

‘Zeynep Kilavuz always tries to understand our approach, the desired outcomes we want, and our priorities before bringing possible solutions to the table, which saves a tremendous amount of time. ’

‘Penezoglu law firm helped us very effectively on tax matters and we had positive results with them. ’

‘Reliable information and support in every aspect are the most important elements for us, and Penezoğlu Law Firm exceeds our expectations in this regard.’

‘We respect the whole team very much, but I would like to mention Yusuf Penezoğlu and Ece Şara Tarı. Yusuf is a leader in the sector with his knowledge, experience, and positivity. We are very pleased to work with Ece. She responds to our requests very quickly. We are very glad to work with these people.’

‘They helped us very effectively on tax matters.’

‘What makes this practice unique is its owner, Yusuf Gokhan Penezoglu. He and his team are always very responsive, structured and comprehensive in their services, which perfectly meet our expectations.’

Bezen & Partners

Bezen & Partners advises financial institutions and corporates operating across the energy, finance, infrastructure, and software sectors, on tax litigation, credits, customs matters, VAT, stamp duty, and the tax aspects of banking and finance transactions. The practice is led by Serdar Bezen, who draws on a background in project finance; and Ege Göktuna, who holds a Ph.D. in Tax Law.

Practice head(s):

Serdar Bezen; Ege Göktuna

Key clients

Hitachi Zosen Inova AG

Guess Europe

Aegir – Marine B.V.

Familia Giyim Ticaret Anonim Şirketi

LDI Trading Dış Ticaret Anonim Şirketi

RHG Enertürk Enerji Üretim ve Ticaret A.Ş.

Kipros LLP

TMF Group B.V.


Absa Bank Tanzania

Work highlights

  • Advising Hitachi Zosen Inova AG in relation to the construction of a waste incineration and EfW to be built in Istanbul, including advice on tax structuring in respect of the joint venture.
  • Advised the Turkish subsidiary of Guess? Inc. regarding tax matters in connection with its operations in Türkiye and mainly on e-commerce.
  • Advised a Swiss consultancy company on the applicability of value added tax in respect of the digital services provided by an online networking platform.

Erdem & Erdem Law Office

Praised for its ‘impressive track record of successfully navigating complex tax issues’ Erdem & Erdem Law Office advises automotive, shipping, real estate, insurance and banking corporates on restructuring, administrative fines, and complex tax litigation. The practice is led by Canan Doksat who was appointed to partner in January 2023, and brings experience in disputes and reconciliation procedures against customs duties and fines. Key support is provided at the associate level by Beyza Günsel Sürücü.

Practice head(s):

Canan Doksat

Other key lawyers:

Beyza Günsel Sürücü


‘The team at Erdem & Erdem boasts an impressive track record of successfully navigating complex tax issues. Their seasoned attorneys have a deep understanding of tax laws and regulations, ensuring that clients receive the most effective counsel and representation.’

‘Canan Doksat possesses an in-depth understanding of complex tax matters, and her ability to provide insightful guidance and solutions to clients is truly impressive.’

Key clients

İş Bankası

Mersin International Port


H Bayraktar


Ege Fren

Turkon Holding

Ege Endüstri


Kumport Liman İşletmeleri

Bayraktar Holding



Work highlights

  • Advising Ege Fren on tax litigation in relation to the tax case to be initiated with the cancellation claim of the earthquake tax.
  • Advising Bayraktar Holding on a restructuring project in three phases: a merger, a capital increase through internal sources, and asymmetric full spin-off transactions.

GNDO Legal/ Gündüz Özgenç Attorney Partnership

GNDO Legal/ Gündüz Özgenç Attorney Partnership is well-regarded for its in-depth experience in complex, multi-jurisdictional tax litigation. The team’s diverse client base spans pharmaceutical, insurance, as well as logistics and tourism entities, and is headed by seasoned litigators Zeki Gündüz and Selçuk Özgenç.

Practice head(s):

Zeki Gündüz; Selçuk Özgenç


‘Zeki Gündüz’s deep knowledge and 30+ years of experience makes you feel in good hands. Selçuk Özgenç’s in-depth experience of tax laws and regulations, combined with his ability to devise innovative solutions, makes him an invaluable asset for any individual or business seeking to navigate the intricacies of tax law.’

‘The GNDO Legal team are top specialists in the tax dispute area at the local, as well as the global level. They have a proven track record in assisting on tax audits, negotiating reconciliation processes, legal advice, and tax litigation for more than 25 years in Turkey.’

‘Zeki Gündüz brings rare insights on the inner thinking of tax authorities.’

‘The team is very focused and result-oriented, with broad experience in all legal and tax areas and deep knowledge in special topics.’

‘GNDO Legal is one of the most important firms in the tax law practice and draws its success from the strong background of its partners.’

‘Zeki Gündüz is very professional and trustworthy. He is one of the most reputable tax experts in Turkey.’

‘Their unique blend of expertise, innovation, and dedication to clients sets them apart in the industry, making them a trustworthy partner for all tax-related matters. ’

‘They are very knowledgeable and experienced in all areas of tax law. They have a good command of both practice, legal regulations and theory.’ 

Moroglu Arseven

Moroglu Arseven advises corporates operating across the transport, technology, entertainment sectors on a wide range of day-to-day corporate matters, including regulatory compliance, cross-border transactions, and tax litigation. The practice is led by Ertunç Şirin, who brings expertise to tax administrative procedures and disputes, in addition to sanctions and international trade. The team is supported by senior associate and compliance specialist Metin Abut.

Practice head(s):

Ertunç Şirin

Other key lawyers:

Metin Abut


‘This firm is responsive, focused, and provides good practical advice.’

‘Metin Abut is unique for his focus on the perspective of companies and the decisions that need to be made. His advice has been very helpful.’

Pekin & Pekin

Pekin & Pekin often advises insurers, banks, and high-net-worth individuals on matters ranging from the tax aspects of cross-border transactions, indirect taxation, tax inspections, as well in litigation. The team is headed by experienced tax planner Firat Yalçin, who also leads the firm’s M&A practice.

Practice head(s):

Fırat Yalçın