Balcıoğlu Selçuk Eymirlioğlu Ardıyok Keki Attorney Partnership (BASEAK), a full-service Istanbul-based law firm affiliated with Dentons, offers comprehensive tax law expertise. Led by Dr. Gökçe Sarısu Kanmaz, a seasoned practitioner with nearly 20 years of experience, the tax team handles litigation, audits, M&A taxation, and international tax matters. She is supported by Görkem Haraççı Salar, a senior associate with a decade of experience. The team collaborates with other practice areas including corporate, litigation, and finance, and is recognized for its client service and legal excellence by industry publications. BASEAK comprises nearly 100 lawyers with global and local experience.
During the research phase, the firm assisted a leading distributor and solutions aggregator for the IT ecosystem oncomplex tax matters and requires an understanding of M&A transactions to guide the client in a more precise way from tax perspective.
Client feedback
“Always available, easy to reach, good know how.”
Centrum Turkey, established in 2015, is one of Turkey’s fastest-growing audit and consulting firms, offering end-to-end services in tax, international tax, audit, consultancy, internal control, and CFO support. With over 100 professionals across four offices, it serves 750+ clients. Centrum is the Turkish representative of ETL Global and Taxand. Known for its proactive, solution-oriented approach, it emphasizes strategic value creation beyond compliance. Led by Burçin Gözlüklü, its tax team specializes in diverse industries and expanded its client base by over 30% in 2025.
During the research phase, the firm assisted a leading company in Tax audit dispute after it received a tax penalty notice of 1,093,934.60 TRY due to a mismatch in temporary tax reporting, which was later acknowledged by the Tax Audit Board as an error caused by AI-generated data, prompting the company to file an objection.
Client feedback
“Accessible, knowledgeable and solution oriented.”
Erdem & Erdem is a full-service law firm with over 40 years of experience, offering expertise in mergers and acquisitions, finance, real estate, corporate law, and litigation. Its tax department, led by Partner Canan Doksat, has provided advisory and litigation services for 7 years across Istanbul, Izmir, and a new Amsterdam office. The team advises on tax and customs legislation, restructuring, insolvency, and risk assessment. They also handle tax and customs disputes from inspection to litigation. Erdem & Erdem is a member of TAG Alliances and TerraLex.
During the research phase, the firm assisted a leading payments provider with expert tax advisory services for a tax-neutral group restructuring, which includes a tax-free merger, spin-off, and carve-out.
Client feedback
“To-the-point opinions, deep knowledge on tax issues and reflection of business perspective very well on the opinions provided.”
Penezoğlu Law Firm, founded by Yusuf Gokhan Penezoğlu, is a full-service Turkish law firm with a strong focus on tax law. With nearly 25 years of experience, Mr. Penezoğlu has led the transformation of tax law practice in Turkey from accounting to legal expertise. The firm, independent and unaffiliated with foreign entities, serves major multinational clients. Its specialized team handles complex tax disputes and has achieved landmark court decisions. The firm’s deep industry knowledge and client-centric approach distinguish it as a pioneer in Turkish tax litigation and advisory services.
During the research phase, the firm assisted a software major overseeing both legal and financial structuring of the client's global expansion strategy, managing the end-to-end execution of the project. In addition, the team acts as the primary tax and legal advisor for a multi-year reorganization of one of Turkey’s largest family-owned conglomerates.
Client feedback
“We have been working with Penezoglu Law Firm for several years and they have been providing us with very valuable advice on a variety of complex matters relating to Tax law. They are very professional, have very experienced and great team.”
“I believe they are the number one law firm in Turkey in the field of taxation. It is truly difficult to find experts in both tax and law in Turkey. Most law firms shy away from any legal matters involving taxes, but this team is not only highly specialized in their field but also acts as our right-hand in every matter.”
