What is Independent Audit?
Independent Audit (Bağımsız Denetim) under Turkish Commercial Code Article 397 is the mandatory third-party audit requirement applicable to Turkish companies meeting defined size thresholds: providing assurance over financial statements, internal controls, and compliance with applicable accounting standards. The TTK independent-audit framework was substantially restructured by the 2011 TTK reform, replacing prior internal-auditor models with externally-licensed audit firms regulated by KGK (Kamu Gözetimi Kurumu: Public Oversight Authority).
The current TTK independent-audit thresholds (as updated 2023, applicable to 2024 fiscal year and beyond) require independent audit when a Turkish A.Ş. or Ltd. meets ANY TWO of three criteria over two consecutive years: total assets exceeding TRY 150M; annual net revenue exceeding TRY 300M; or average employee count exceeding 150. Lower thresholds apply to specific sectors (capital-markets entities, banks, insurance, etc., where SPK or BDDK frameworks impose audit regardless of size). Public companies, banks, insurance, and SPK-regulated entities are subject to independent audit regardless of size.
Beyond statutory threshold-triggered audit, several scenarios involve elective or contractually-required audit: VC-investor requirement: virtually all institutional VC term sheets require annual independent audit as a covenant; strategic-investor requirement: M&A transactions and joint ventures typically include audited-financials obligations; banking-relationship requirement: major Turkish banks increasingly require audited financials for significant credit relationships; and cross-border-reporting requirement: Turkish subsidiaries of multinational groups must produce audited statements for group consolidation purposes.
The independent audit process follows International Standards on Auditing (ISA) as adopted by KGK, modified for Turkish-specific requirements. Audit deliverables include: auditor’s report on financial statements (clean, qualified, adverse, or disclaimer opinion); audit findings on internal-control weaknesses and process recommendations; compliance verification on TTK and other applicable regulatory frameworks; and independent-audit certificate filed with relevant authorities. The auditor must be a KGK-licensed independent audit firm, with rotation requirements after extended engagement (typically every 7–10 years depending on company size).
For VC-backed Turkish startups, audit preparation is operationally significant: ensuring proper accounting practice from inception (rather than retroactive cleanup before audit), maintaining contemporaneous supporting documentation, implementing internal-control frameworks scaled to company size, and selecting an audit firm with sector experience and reasonable cost-quality balance (Big Four for late-stage/IPO-bound companies, mid-tier firms: Mazars, BDO, Grant Thornton, Crowe: for growth-stage). Vircon Legal advises Turkish startups and growth-stage companies on audit readiness, audit-firm selection and engagement-letter negotiation, audit-finding response and remediation, and the integration of audit-related obligations with broader VC reporting requirements.
Sources. Turkish Commercial Code No. 6102. Statute links open the official consolidated Turkish texts on mevzuat.gov.tr.