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Accounting Firms in Istanbul for Foreign Investors (Top 3)  

Byadmin

Turkey has become one of the most attractive destinations for foreign investment. Its location bridges Europe and Asia. Its market is large and growing. But for international entrepreneurs, the Turkish tax and regulatory system can be hard to navigate. The legislation changes frequently. The paperwork is in Turkish. And the penalties for mistakes are real.

This is why foreign investors need more than a basic accountant. They need a partner who understands both Turkish law and the realities of doing business from abroad. The right firm handles your company formation, accounting, tax, and payroll. It also communicates clearly, without language barriers or hidden costs.

Below are the top 3 accounting firms in Istanbul for foreign investors.

1. A&M Consulting Co. 

A&M Consulting Co. is one of Istanbul’s most foreign-investor-focused Turkish accounting firms. The firm was built specifically to serve international entrepreneurs and corporate investors entering the Turkish market.

It is officially registered and accredited by TURMOB and ISMMMO, and recognized internationally through its ACCA affiliation. Founder Abdullah Mercanlı is a Certified Public Accountant with over 20 years of experience, spanning both Turkey’s Social Security Institution and senior finance and tax roles in the private sector.

  • Rating: 5.0 / 5
  • Address: 29/4 Öge St. Kavacık District, Beykoz, Istanbul / Türkiye
  • Phone: +90 (542) 773 08 85
  • Website: https://a-m.com.tr/
  • Why choose them: A&M works as a single-contact, turnkey partner for foreign investors. You don’t need to coordinate separate accountants, payroll specialists, and company-formation agents. Their team manages the entire journey: company registration, accounting and bookkeeping, tax structuring and compliance, HR and payroll, financial reporting, and cash management. What sets them apart is their investor-first, multilingual approach. They speak directly with international clients in clear English. There are no translation fees and no hidden intermediary commissions. Every solution is tailored to the specific structure of your business and the realities of the Turkish market. With affordable, transparent pricing, professional indemnity coverage, and a proactive stance on Turkey’s ever-changing tax rules, A&M gives foreign investors genuine peace of mind. For anyone who wants to invest, establish, or expand in Turkey the right way, A&M Consulting Co. is a premier choice.
  • Things to consider: Because A&M tailors each engagement to the client’s business model, booking an initial consultation in advance is recommended so they can prepare the right setup for you.

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

2. PKF İstanbul

PKF İstanbul is a member of PKF Global, one of the world’s largest networks of independent audit and advisory firms. Established in 2005, it serves both Turkish and international clients to global standards.

  • Rating: 4.6 / 5
  • Address: Eski Büyükdere Cad. Park Plaza, No: 14, Maslak, Istanbul / Türkiye
  • Phone: +90 (212) 426 00 93
  • Website: https://pkf.com.tr/
  • Why choose them: Backed by a network spanning around 150 countries, PKF İstanbul offers internationally standardized audit, tax, accounting, and corporate finance services. This makes it a strong fit for foreign investors and multinationals that need cross-border consistency, independent audits, and reporting aligned with global standards.
  • Things to consider: As a network-affiliated firm geared toward audit and corporate clients, PKF İstanbul may be better suited to medium and large companies than to very small startups.

3. GULENIM GROUP

Gulenim Group is an Istanbul-based legal and accounting consultancy founded in 2014. It focuses heavily on foreign investors — particularly Arabic-speaking entrepreneurs — looking to establish and run businesses in Turkey.

  • Rating: 4.5 / 5
  • Address: Akşemsettin, Akdeniz Cd. No:113, 34080 Fatih / Istanbul
  • Phone: +90 (555) 059 55 57
  • Website: https://gulenimgroup.com/
  • Why choose them: Gulenim Group combines legal and accounting services under one roof. Beyond bookkeeping and tax, it handles company formation, residence permits, trademark registration, licensing, and ISO/CE certifications. Its Arabic-language support and fast company-setup process make it popular with investors from the Middle East.
  • Things to consider: The firm’s communication and content are primarily in Arabic, so it’s best suited to Arabic-speaking investors rather than a broad international audience.

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

Accounting fees for foreign investors in Istanbul depend on the size and structure of the business, the volume of monthly transactions, the services required, and the firm’s level of accreditation and international reach.

For most foreign investors, the most cost-effective option is a full-service firm that combines accounting, tax, and company formation in one place — removing duplicate intermediary fees and translation costs.

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

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