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Turkey Launches Competition Probe Into 65 Auditing and Advisory Firms

By  |  March 11, 2026

Turkey’s competition watchdog has opened a wide-ranging investigation into dozens of companies operating in the auditing and financial advisory sector, including the local branches of the world’s largest accounting networks.

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    The country’s Competition Board (RK) announced Wednesday that it has initiated a probe involving 65 companies and professional organizations active in the industry. The investigation includes the Turkish units of the so-called Big Four accounting firms — KPMG, PwC, Deloitte and EY — according to a statement from the authority.

    Regulators said the inquiry will examine whether firms in the sector coordinated on service pricing or engaged in practices that may have restricted competition in the labor market. The authority said it is also assessing whether professional associations played any role in such conduct, per a statement issued by the board.

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    The investigation will focus on whether companies shared pricing information or client portfolios in ways that could violate competition rules. Officials are also reviewing whether any actions were taken that might have prevented new firms from entering the market or otherwise distorted competition, according to a statement from the regulator.

    Read more: Turkey Fines Poultry Producers $89 Million for Collusion

    In addition, the authority said it is evaluating whether companies exchanged information related to employment practices that could have harmed workers’ rights, including possible impacts on wages. Authorities are examining whether there were agreements or communications affecting hiring practices in the sector, per a statement.

    “The Competition Board, at its meeting on Jan. 29, 2026, decided to determine whether Article 4 of the Law No. 4054 on the Protection of Competition was violated by making price fixing and customer sharing agreements in service (output) markets, and non-poaching and wage fixing labor agreements (input) markets; exchanging information regarding both input and output markets; and also taking decisions of undertaking associations that restrict competition,” the statement shared by the authority read.

    The probe represents one of the largest investigations in recent years into Turkey’s professional services industry. Regulators did not immediately provide a timeline for the investigation or indicate whether penalties could follow if violations are confirmed, according to a statement.

    Source: Daily Sabah