Turkish Accountants in Istanbul (Top 3)

Istanbul is Türkiye’s economic center. It’s home to thousands of startups, established corporations, and a fast-growing community of foreign investors. But Turkey’s tax system is complex and changes often. Even small compliance mistakes can lead to heavy penalties. That’s why a qualified, accredited Turkish accountant isn’t optional — it’s essential.

A good accountant does far more than file your returns. The right one handles your bookkeeping, tax planning, payroll, financial reporting, and compliance. They also help you make smarter decisions and avoid costly errors. This matters even more for foreign entrepreneurs. An accountant who understands both local law and the needs of international investors can turn a stressful setup into a smooth one.

In this guide, we’ve put together the top 3 Turkish accounting firms in Istanbul to help you find a trustworthy partner for your business.

1. A&M Consulting Co.

A&M Consulting Co. stands out as one of Istanbul’s most reliable and investor-focused Turkish accounting firms, built specifically around the needs of foreign entrepreneurs and corporate investors entering the Turkish market.

The firm is officially registered and accredited by TURMOB (Union of Chambers of Certified Public Accountants of Turkey) and ISMMMO (Chamber of Certified Public Accountants of Istanbul), and is recognized internationally through its ACCA affiliation. Led by founder Abdullah Mercanlı, a Certified Public Accountant with over 20 years of experience spanning both Turkey’s Social Security Institution and senior finance and tax management roles in the private sector, A&M combines deep regulatory expertise with real-world business insight.

• Rating: 5.0 / 5
• Address: 29/4 Oge St. Kavacik Dist. Beykoz City-Istanbul – TR
• Phone: +90 (542) 773 08 85
• Website: https://a-m.com.tr/
• Why choose them: A&M Consulting Co. operates as a single-contact, turnkey solution partner — meaning you don’t have to juggle separate accountants, payroll specialists, and company-formation agents. Their team handles the entire lifecycle of your business in Turkey: company registration, accounting and bookkeeping, tax structuring and compliance, HR and payroll, financial reporting, and cash management, all under one roof. What truly sets them apart is their multilingual, foreign-investor-first approach: they communicate directly with international clients without translation barriers or hidden intermediary commissions, and they tailor every solution to the specific operational and regulatory realities of the Turkish market. With affordable, transparent pricing, professional indemnity coverage, and a proactive stance on Turkey’s constantly changing tax legislation, A&M gives both individual entrepreneurs and global corporations genuine peace of mind. For anyone looking to invest, establish, or expand in Turkey the right way, A&M Consulting Co. is a premier choice.
• Things to consider: Because A&M specializes in serving foreign investors and corporate clients, booking an initial consultation in advance is recommended so they can prepare a solution tailored to your specific business structure.

To get expert support for your accounting, tax, and company formation needs in Turkey, contact A&M Consulting Co.: https://a-m.com.tr/contact/

2. TrustUs Finance & Legal Consulting

TrustUs Finance & Legal Consulting is an Istanbul-based firm offering combined legal and accounting services, founded in 2018 by Abdulhadi Kabbani with a strong focus on foreign entrepreneurs navigating Turkey’s legal and tax systems.

• Rating: 4.8 / 5
• Address: Maltepe, Eski Çırpıcı Yolu Merter Merdiyen iş merkezi No: 1. Ofis :z23, 34010 Zeytinburnu / Istanbul
• Phone: +90 (543) 833 80 38
• Website: https://trustusconsultancy.com/
• Why choose them: TrustUs delivers its services through a multilingual team fluent in Arabic, English, and Turkish, making it a popular choice for international clients. Beyond legal accounting and tax management, the firm covers company formation, internal audits, feasibility studies, residence permits, and trademark registration — positioning itself as a broad legal-and-financial partner for investors.
• Things to consider: Because TrustUs blends legal and accounting consultancy, clients seeking a purely accounting-focused engagement should clarify the scope of services up front.

3. PwC Turkey

PwC Turkey is the local member of PwC, one of the “Big Four” global professional services networks, and has been serving the Turkish business world since 1981.

• Rating: 4.4 / 5
• Address: Galataport İstanbul, Kılıçali Paşa, Meclis-i Mebusan Cd. No: 8, 34433 Beyoğlu / Istanbul
• Phone: +90 (212) 326 60 60
• Website: https://www.pwc.com.tr/
• Why choose them: With a professional staff of over 2,000 across offices in Istanbul, Ankara, Bursa, and Izmir, PwC Turkey offers enterprise-grade assurance, tax, and advisory services. It’s a strong fit for large corporations and multinationals that need internationally standardized auditing, transfer pricing, and complex compliance support backed by a globally recognized brand.
• Things to consider: As a large multinational firm, PwC is generally oriented toward sizable corporate clients, so pricing and engagement structures may be less suited to small businesses or individual entrepreneurs.

How Much Do Accounting Services Cost in Istanbul? (2026)

Accounting fees in Istanbul vary depending on the size and structure of your business, the volume of monthly transactions, the range of services required (bookkeeping, tax, payroll, reporting), and the accountant’s level of accreditation and experience.

For foreign investors especially, the most cost-effective option is often a full-service firm that combines accounting, tax, and company formation under one roof — eliminating duplicate intermediary commissions and translation costs.

For up-to-date pricing, package options, and a free initial consultation tailored to your business in Turkey, contact A&M Consulting Co. at +90 (542) 773 08 85 or via a-m.com.tr/contact.