For international accounting firms & corporate services groups
Your Local Accounting, Tax & Corporate Services Partner in Turkey
SYSTEMS CPA is the international corporate services practice of OZM Consultancy, an Istanbul-based, CPA-led professional services firm.
We support international accounting firms, corporate services providers and multinational groups that need reliable, licensed local delivery capability in Turkey.
In short: SYSTEMS CPA acts as the licensed Turkish delivery partner for international accounting networks, corporate services groups and M&A advisers. Our CPAs (SMMM, registered with TÜRMOB) keep statutory books, file Turkish tax returns, run payroll and handle corporate administration for your clients’ Turkish entities — under your client relationship, with English-language reporting to your team.
Key facts at a glance
| Firm | SYSTEMS CPA — the international practice of OZM Consultancy, Istanbul |
|---|---|
| Licensing | Work signed by Certified Public Accountants (SMMM) registered with TÜRMOB — lead CPA Reg. No. 35675 |
| Team | 3 licensed CPAs (SMMM) plus a dedicated accounting & payroll operations team |
| Client base | 130+ active client companies served across the OZM practice, including foreign-owned subsidiaries |
| Languages | English and Turkish — reporting to HQ in English, filings to Turkish authorities in Turkish |
| Partnership models | White-label delivery, referral arrangements, strategic collaboration and confidential investment / M&A discussions |
| Office | Deluxia Palace A-158, Teknik Yapı, Batı Ataşehir, Istanbul |
| Direct contact | evrenozmen@ozmconsultancy.com · +90 216 352 29 61 |
Our core capabilities
Statutory accounting & tax compliance
Turkish GAAP books, e-Ledger, corporate tax, VAT, withholding and provisional tax filings on the Turkish tax calendar.
Payroll & employment compliance
Monthly payroll, SGK social security and payroll tax declarations, onboarding and termination documentation.
Company formation & corporate administration
Ltd. and A.Ş. formation, branches and liaison offices, trade registry filings, capital increases and statutory books.
Group reporting & outsourced finance
Month-end close, reconciliations and reporting packs mapped to your client’s group chart of accounts and IFRS calendar.
Tax & financial due diligence support
Turkish tax exposure reviews, statutory record checks and local fieldwork for buy-side and sell-side transactions.
Partnership models: white-label delivery vs referral vs strategic partnership
| White-label / subcontracted delivery | You keep the client relationship and billing; we deliver Turkish accounting, tax and payroll work to your standards and report to your team in English. |
|---|---|
| Referral arrangement | You introduce clients with a Turkish entity; we contract and serve them directly and keep you informed on the relationship. |
| Strategic collaboration | A preferred-partner arrangement for a network or corporate services group building a long-term Turkey offering, with agreed service levels and escalation lines. |
| Investment / M&A discussions | Confidential conversations with groups considering a permanent presence in Turkey through deeper integration with an established local practice. |
Working with international partners
We welcome confidential discussions with international professional services networks, corporate services groups and strategic partners seeking to establish or strengthen their presence in Turkey.
Our focus is on long-term relationships, professional continuity, local expertise and reliable service delivery.
- One accountable signatory: every Turkish filing is prepared and signed by a licensed CPA — no unlicensed intermediaries.
- Your standards, our execution: we adapt to your engagement letters, checklists, review cycles and reporting templates.
- Confidentiality by default: NDA before any client or commercial information is exchanged.
- Continuity: documented files and an agreed transition protocol, so end clients are never left without a signatory.
Why foreign firms need a licensed local partner in Turkey
Under Law No. 3568 on Independent Accountants, Certified Public Accountants and Sworn-in Certified Public Accountants, only professionals licensed and registered with TÜRMOB may keep statutory books and sign tax returns for clients in Turkey. An international firm without its own licensed Turkish staff therefore needs a licensed local partner to deliver compliance work for its clients’ Turkish entities.
Practitioner’s note — Evren Özmen, CPA: “The international firms that do well in Turkey are the ones that treat their local partner as part of the engagement team, not as a filing vendor. The work that protects the end client — reconciling Turkish statutory books to group reporting, flagging a withholding exposure before year-end — only happens when both sides share one calendar and one escalation line.”
Our team
| Osman Evren Özmen | Certified Public Accountant (CPA, SMMM) · TÜRMOB Reg. No. 35675 — leads international engagements, tax certainty and partnership discussions |
|---|---|
| Kemal Özmen | Certified Public Accountant (CPA, SMMM) |
| Burcu Natıroğlu | Certified Public Accountant (CPA, SMMM) |
| Accounting & payroll operations | Sevda Aşıkoğlu, Sümeyra Durnagöl and the client portfolio team — bookkeeping, payroll and monthly filings |
Read more about our firm on the About page.
Frequently asked questions
Who is SYSTEMS CPA’s partnership offer for?
International accounting networks, corporate services and fund administration groups, global payroll and EOR providers, and M&A advisers who need a licensed, English-speaking delivery partner for clients with a Turkish entity. We act as your local execution layer under your client relationship, or as a referral or strategic partner.
Can SYSTEMS CPA work under our brand (white-label)?
Yes. We regularly deliver statutory accounting, tax filings and payroll as a subcontractor where the international firm keeps the client relationship. Turkish statutory filings are still signed by a licensed Turkish CPA (SMMM), as required by Law No. 3568, so the signing professional is always disclosed to the authorities.
What happens if a foreign firm tries to sign Turkish returns itself?
It cannot. Under Law No. 3568, only professionals licensed and registered with TÜRMOB may sign Turkish tax returns and keep statutory books for clients. A foreign firm without a licensed local partner must either hire licensed staff in a Turkish entity or work through a licensed firm such as SYSTEMS CPA.
What happens to the client if the partnership ends?
Continuity is written into the arrangement from day one: client files, ledgers and filing history are kept in a format that can be handed over, and an exit and transition protocol is agreed in the partnership terms, so the end client is never left without a licensed signatory mid-period.
Are you open to acquisition or investment discussions?
Yes. We welcome confidential discussions with corporate services groups and accounting networks considering a long-term presence in Turkey, including deeper integration of the practice. These conversations are handled directly by our senior CPA and kept strictly confidential.
How do we start a partnership discussion?
Email our senior CPA directly at evrenozmen@ozmconsultancy.com with the subject “Confidential Partnership Enquiry”, or call +90 216 352 29 61. We can sign an NDA before any client or commercial information is exchanged.
Confidential
Discuss a Confidential Partnership
Contact our senior team to explore international service delivery partnerships, referral arrangements and strategic collaboration opportunities. Your enquiry goes directly to our senior CPA — not to the general service-request inbox.
Discuss a Confidential PartnershipConnect on LinkedIn →
evrenozmen@ozmconsultancy.com · +90 216 352 29 61
Primary sources: Law No. 3568 (mevzuat.gov.tr) · Revenue Administration (gib.gov.tr) · Official Gazette (resmigazete.gov.tr) · TÜRMOB
Author: Osman Evren Özmen, CPA (SMMM) · TÜRMOB Reg. No. 35675 · Wikidata · Last updated 10 October 2026
“They are definitely the best accountant in Turkey for international business owners. They handle everything.”
“Finding a trustworthy, English-speaking CPA in Istanbul felt overwhelming at first — until I met Evren and his team.”
“Working with Evren has been the best decision for my business in Turkey.”
Need this handled in Turkey? Talk to a licensed CPA
Evren Özmen, CPA (SMMM) · TÜRMOB Reg. No. 35675 · We reply in English, usually within one business day.