What are the recurring annual costs of running a Turkish company?

Key recurring costs include: monthly SMMM accounting fees (36,000–96,000 TL/year), annual trade registry and chamber of commerce fees (2,000–5,000 TL), corporate tax (25% of net profit), VAT filings (monthly), and social security contributions if you have employees. Technopark-registered companies save significantly on corporate tax and payroll tax.