Practice area

World Tax Reviews

Andersen Tax

UnityFour, an independent firm specialising in tax and accounting, offers a comprehensive tax service, and all the senior members have previously worked for the big four. The managing partner, Nikolaos Siakantaris, has experience in corporate tax, private client, international tax planning and VAT. Martha Papasotiriou heads the firm's tax advisory, international tax and transfer pricing services, and has broad experience in jurisdictions on cross-border structuring, tax consulting, tax planning and transfer pricing.

The firm announced in July 2017 its collaboration with Andersen Global (an international association of independent firms) in Greece and in Cyprus. As members, these firms now provide legal, tax and accounting services in Greece and legal, tax, accounting and fiduciary services in Cyprus.

The firm relocated to a new office in the centre of Athens due to the growth and expansion of the business. It has also began cooperating with a large multinational company that allows it to offer comprehensive tax services including more complex transfer pricing and international tax consulting.


A big four firm, Deloitte is one of the leading teams for tax legal practice offering a full range of tax services. The accounting firm continues to develop its tax practice, for example, its private client team has expanded the service offerings to high net worth individuals, succession planning and family governance. Its payroll services team has expanded its services to HR compliance and administration. Maria Trakadi, partner, is the tax leader and consumer products leader for the firm.

The practice advised a client on a $300 million acquisition in the tobacco industry for its expansion for producing and selling new tobacco products. The team advised on the tax and accounting aspects of the investment. The advice including permanent establishment, VAT and withholding tax rules.

The team has increased the size of its offering with the recruitment of partner Koimtzoglou Ilias and principal Kitsio Aristotelis.

Dryllerakis & Associates

The Dryllerakis & Associates tax team, led by senior partner Sophia Grigoriadou, offers its clients comprehensive tax law advisory such as tax controversy, indirect, transactional, transfer pricing, tax planning, and provides tax advisory for criminal law and accounting law. The firm's litigators are experienced in representing clients in both the administrative courts and the Supreme Court.

The firm is representing clients from various sectors such as banking, IT and manufacturing on cases that will serve as a precedent for future court rulings, for example, cases involving VAT refunds, real estate, stamp duty, individual clients' bank deposits, bank loans, dividends, etc.

Client feedback

“Very quickly and effectively they set up immediate, near term and long term goals, milestones and strategies in an effort to define the project and organise our efforts towards our objectives.”


EY, a big four accounting firm, is one of the prominent players in Greece’s tax law market. It has one of the biggest tax practices with 195 fee earners and seven partners, and it is a go-to firm for transfer pricing advisory. Its tax team has comprehensive experience advising in all tax areas and had advised on some of the biggest cross-border transaction deals within various sectors such as insurance, pharmaceuticals, healthcare, technology, telecommunications, energy, oil, consumer products and gas. Its transaction tax team was involved in all major deals in Greece in 2017.

Koutalidis Law Firm

Koutalidis Law Firm advises on tax legal cases covering general tax with various financial transactional cases valued at more than €500 million. The tax practice is led by George Naskaris, tax partner.

Naskaris advised major banks including Alpha Bank, Credit Suisse Securities, HSBC Bank, the National Bank of Greece and Piraeus Bank regarding a debt tender offer issued by Hellenic Petroleum Finance. Koutalidis acted as the Greek legal advisor to the former banks due to the fact many of the debt holders were Greek taxpayers. Koutalidis also advised Alpha Bank and Eurobank on matters relating to a joint venture with KKR on creating a management platform regarding managing non-performing loans.

Zepos & Yannopoulos

Zepos & Yannopoulos is a leading law firm with a specialised team of 35 lawyers and some economists and accountants who work exclusively in tax legal, offering a comprehensive advisory service to multinationals, high net worth individuals, non-profit organisations and domestic firms. In addition, the firm also has the expertise and capability to advise and prepare transfer pricing documentation. It has a dedicated specialised team in these areas: private client, transactional tax and tax controversy / litigation.

To highlight a few key high profile cases, the firm advised some financial institutions by interpreting new legislation regarding non-performing loans to facilitate/regulate the related income tax implications. However, this was complex due to the nature of the legislation focusing on loans as opposed to leasing, which the client firm was involved in.