ITR World Tax 2026

In mid-October 2025, ITR (International Tax Review) published its current rankings of the world’s most recognised tax consulting firms and tax practitioners. ITR World Tax 2026 lists WTS Klient in Tier 2 in three categories:

• General corporate tax: Tier 2
• Indirect tax: Tier 2
• Transfer pricing: Tier 2

ITR World Tax Leaders 2026

In the country-by-country ranking of the world’s best tax practitioners, ITR World Tax Leaders 2026, five of our advisers were included again this year, similarly to last year.

• Réka Kiss, Director at WTS Klient, received a “Highly regarded” rating in the general corporate tax category
• Tamás Gyányi, Senior Partner at WTS Klient, received a “Highly regarded” rating in the indirect tax category
• András Szadai, Partner, Head of Tax Services at WTS Klient, received a “Highly regarded” rating in the indirect tax category
• Tamás László, Director at WTS Klient, received a “Rising star” rating in the indirect tax category
• Zoltán Cseri, Senior Manager at WTS Klient, received the title of “Rising star” in the indirect tax category

According to the ranking, Tamás Gyányi and András Szadai are among the nine best indirect tax advisers in Hungary, while Réka Kiss is one of the four best general corporate tax experts in the country. Tamás László and Zoltán Cseri were named “Rising Stars” for the third time. A total of eight young tax professionals in Hungary received this title this year.

Meet WTS Klient’s renowned tax advisers!

Réka Kiss started her professional career as a tax adviser assistant at Noerr Hungary before joining the WTS Klient team, where she currently holds the position of tax director. She spent a year in the VAT department of WTS Germany’s Munich office. Her main areas of expertise are global expatriate tax services, mergers and due diligences before acquisitions.

After his years at a Big4 company, Tamás Gyányi joined Klient in 2004. His name is synonymous with the establishment of the company’s tax consulting division, which has since become one of the strongest bastions of WTS Klient. In 2014, he was appointed a tax partner of the firm, then in March 2022, a senior partner of the tax advisory, payroll and later the HR services divisions. He has been ranked as “Highly regarded” in the ITR World Tax Leaders 2026 for the 10th time, meaning he has been awarded this title every year since 2017.

András Szadai started as a trainee in the tax team of Klient in 2006, after his college studies. He worked as a tax adviser in London for two years and gained experience also in the transfer pricing group of WTS in Munich for 4 months. Since 2022 he has been head of the tax consulting division of WTS Klient as a partner.

Tamás László economist, tax consultant and certified VAT expert. He mainly deals with VAT issues and tax representation for international companies, handling tax and transfer pricing advice, VAT registration, tax audits, tax planning and due diligence, and he is an outstanding expert in digital solutions in taxation and the related IT-developments.

Zoltán Cseri started his professional career as an intern at WTS Klient. He is a tax consultant, a certified tax adviser, qualified transfer pricing expert and environmental product fee expert, so his main areas of expertise include VAT, transfer pricing and expatriate tax advice, as well as environmental product fee and EPR consulting.

A WTS Klient ranked Tier 2 in ITR World Tax 2026 bejegyzés először WTS Klient Hungary | tax | accounting | payroll | advisory | HR services | digital solutions | state aid-én jelent meg.

More than 5,100 companies and 6,200 tax professionals from over 155 countries in every part of the world were ranked this year by the world’s most respected tax journal, the International Tax Review (ITR). 

ITR World Tax Leaders 2025 

In the ranking of tax professionals, ITR World Tax Leaders 2025, apart from Tamás Gyányi, senior partner at WTS Klient, also András Szadai partner, who leads the tax consulting division of the company, was ranked as “highly regarded”. Both of them were awarded in the indirect tax category, which means that they are under the nine most outstanding indirect tax advisers in Hungary. In the general corporate tax category, Réka Kiss, tax director at WTS Klient, was rated “highly regarded”, making her one of the top three corporate tax advisers in the country. 

Senior managers Zoltán Cseri and Tamás László were included this year, similarly to the previous year, among the World Tax Leaders, earning the title of “Rising star” also in the indirect tax category. In this tax type only three Hungarian tax advisers have been awarded this title. 

The best tax advisers

Réka Kiss started her professional career as a tax adviser assistant at Noerr Hungary before joining the WTS Klient team, where she currently holds the position of tax director. She spent a year in the VAT department of WTS Germany’s Munich office. Her main areas of expertise are global expatriate tax services, mergers and due diligences before acquisitions.

After his years at a Big4 company, Tamás Gyányi joined Klient in 2004. His name is synonymous with the establishment of the company’s tax consulting division, which has since become one of the strongest bastions of WTS Klient. In 2014, he was appointed a tax partner of the firm, then in March 2022, a senior partner of the tax advisory, payroll and later the HR services divisions. He has been ranked as “Highly regarded” in the ITR World Tax Leaders 2025 for the 9th time, meaning he has been awarded this title every year since 2017.

András Szadai started as a trainee in the tax team of Klient in 2006, after his college studies. He worked as a tax adviser in London for two years and gained experience also in the transfer pricing group of WTS in Munich for 4 months. Since 2022 he has been head of the tax consulting division of WTS Klient as a partner.

Zoltán Cseri started his professional career as an intern at WTS Klient. He is a tax consultant, a certified tax adviser and environmental product fee expert, so his main areas of expertise include VAT, transfer pricing and expatriate tax advice, as well as environmental product fee and EPR consulting.

Tamás László economist, tax consultant and certified VAT expert. He mainly deals with VAT issues and tax representation for international companies, handling tax and transfer pricing advice, VAT registration, tax audits, tax planning and due diligence, but he is also an outstanding expert in tax-related IT solutions. 

ITR World Tax 2025 

Apart from ITR World Tax Leaders 2025 list, WTS Klient numbers among the excellent companies also in the ranking of tax and transfer pricing advisory firms, the ITR World Tax 2025. In the ranking, which is based on the opinions of more than 29,000 clients and 5,300 tax professionals, the 30-strong team of András Szadai, tax partner has again this year, similarly to previous years, been ranked in Tier 2, retaining its excellent rating.

A ITR World Tax Leaders 2025 are now live bejegyzés először WTS Klient Hungary | tax | accounting | payroll | advisory | HR services | digital solutions | state aid-én jelent meg.