Quick answer: Turkish companies have statutory bookkeeping, tax-declaration and financial-record obligations, and many businesses use a licensed SMMM (Serbest Muhasebeci Mali Müşavir) for these functions. But the statement “every company must appoint an external CPA at the Trade Registry formation stage” is too broad. The professional arrangement depends on the taxpayer’s category, filing obligations, whether a licensed professional is employed in-house, and whether a YMM certification route or another permitted filing arrangement applies.
This guide explains the Turkish CPA / SMMM requirement: when an external SMMM is normally used, when another licensed-professional arrangement may apply, and how accounting/tax onboarding fits into the company-formation timeline. For the separate daily record, reconciliation, software and month-end handoff workflow, use the Bookkeeping in Turkey guide.
SMMM, YMM and “CPA”: What Do These Terms Mean?
| Term |
Turkish role |
Typical function |
| SMMM |
Serbest Muhasebeci Mali Müşavir |
Licensed accounting/tax professional who can perform bookkeeping, prepare/sign declarations within the applicable professional rules and provide financial/tax services |
| YMM |
Yeminli Mali Müşavir |
Sworn financial adviser with additional certification/audit-related authority for specified tax and financial matters |
| “CPA” |
English shorthand often used for SMMM in international communication |
Not the formal Turkish professional title; the exact Turkish licence should be identified |
The professions are regulated under Law No. 3568 and related professional rules. Workon does not perform regulated accounting or tax practice itself; it coordinates onboarding with appropriately licensed professionals.
Does Every Turkish Company Need an External SMMM?
Not in exactly the same legal form. Turkish tax and professional-signature rules create categories of taxpayers for whom declarations must be signed or prepared through licensed professionals. GİB’s e-Beyanname guidance also recognises taxpayers that are outside the professional-signature obligation under the applicable criteria and can obtain authority to submit electronic declarations directly.
That means the correct question is not simply “Is an accountant mandatory?” but:
- What bookkeeping and declaration obligations apply to this taxpayer?
- Is the taxpayer within a professional-signature requirement?
- Is there a licensed SMMM employed internally?
- Is a YMM certification arrangement relevant?
- Who will prepare, sign and submit the company’s filings in practice?
Typical Scenarios
| Scenario |
Practical position |
| Foreign-owned SME with no in-house licensed accountant |
An external licensed SMMM is normally the practical way to organise statutory bookkeeping, tax declarations and ongoing compliance |
| Company employing a licensed professional internally |
Some accounting/declaration functions may be performed through the in-house licensed professional, subject to the applicable rules |
| Taxpayer outside the professional-signature obligation under current GİB criteria |
The taxpayer may be able to apply for electronic-declaration credentials and submit directly, subject to current GİB rules |
| Taxpayer using a YMM certification route |
The interaction between YMM certification and separate SMMM signature requirements depends on the return and applicable professional rules |
Practical rule for foreign founders: Even where the legal route is not “mandatory external CPA for every company,” a new foreign-owned Turkish company usually needs a licensed local professional arrangement quickly after registration because bookkeeping, declaration, payroll and tax-calendar obligations begin independently of the founder’s nationality.
Company Formation and CPA Onboarding Are Different Stages
The Trade Registry creates the legal company. It is not accurate to describe an external SMMM appointment as a universal prerequisite for the Trade Registry to create every LLC or JSC.
After registration, however, the company’s tax and accounting responsibilities must be organised promptly. This includes determining:
- which books and records apply;
- which declarations are required;
- which professional-signature rules apply;
- who will submit e-Beyanname filings;
- whether payroll/SGK processes are triggered;
- whether e-Fatura, e-Arşiv or e-Defter obligations apply;
- which authorisations and professional engagement documents are needed.
For the full formation sequence, see Process of Establishing a Company in Turkey.
Company registration and licensed accounting/tax onboarding are connected but separate workstreams.
What an SMMM Commonly Handles
The exact engagement varies by company, but an external SMMM commonly handles or coordinates regulated professional work such as:
- statutory bookkeeping;
- preparation and submission of applicable tax declarations;
- payroll and related accounting where employees exist;
- SGK-related accounting/reporting tasks where applicable;
- period-end and annual financial records;
- tax notices and professional correspondence within the authorised scope;
- e-Fatura / e-Arşiv / e-Defter compliance where the company falls within the applicable rules;
- financial reports and transaction-specific professional work.
Not every company has the same monthly declarations or digital-ledger obligations. Applicability depends on the taxpayer, activity, turnover, employment status and current GİB rules.
e-Beyanname: Who Can Submit Tax Declarations?
GİB’s electronic-declaration system distinguishes between taxpayers who submit through authorised professionals and taxpayers that qualify to obtain their own electronic-declaration credentials under the applicable rules.
This is important because it disproves the blanket statement that only an external SMMM can ever transmit a Turkish company’s declaration.
The real compliance question is whether the company falls into a category that:
- requires professional signature;
- uses an authorised SMMM/YMM arrangement;
- employs a licensed professional internally; or
- qualifies for its own electronic filing authority.
These categories and thresholds can change. Confirm the company’s current position against GİB guidance rather than relying on an old blog figure.
e-Defter and e-Fatura Are Not Automatically Day-One Requirements for Every Company
Do not treat e-Defter, e-Fatura, e-Arşiv and other digital systems as one universal incorporation checklist. Entry into those systems depends on current rules, thresholds, activity and taxpayer characteristics.
A licensed SMMM can help determine the correct digital-compliance calendar for the company, but the company should not incur unnecessary setup costs simply because an old article says “every new company must immediately use e-Defter.”
Dedicated guides:
When You May Need Additional Professional Reports
Some corporate transactions can require financial reports, certifications or professional work beyond ordinary monthly bookkeeping. Examples can include capital transactions, mergers, demergers, liquidation stages or other registry/tax procedures.
Do not assume that every transaction always requires the same SMMM report. The exact report depends on the transaction, company type, registry requirement and applicable legislation.
SMMM vs YMM: When the Difference Matters
Most foreign-owned SMEs deal primarily with an SMMM for ongoing bookkeeping and tax compliance. A YMM is relevant where Turkish tax law or the taxpayer’s chosen compliance/certification model requires or benefits from YMM certification or other YMM-specific authority.
The distinction matters because “CPA” is too broad a translation. Before paying for a professional service, confirm:
- the professional’s exact Turkish licence;
- which filings/services are included;
- whether YMM certification is required or optional;
- whether the engagement is monthly, annual or transaction-specific.
How Much Does an SMMM Cost in 2026?
There is no responsible single monthly figure for every company. Professional fees vary with bookkeeping class, workload/ledger-file size, employees, foreign-trade activity, location and additional services.
As an official 2026 reference, the SMMM professional-fee tariff shows the following monthly base ranges for balance-sheet bookkeeping before applicable additions and reductions:
| Economic scale |
2026 monthly base range |
| Micro |
TRY 7,985–19,165 |
| Small |
TRY 10,381–23,956 |
| Medium |
TRY 12,776–28,747 |
| Large |
TRY 15,172–33,538 |
These are SMMM professional-fee tariff references, not Workon prices and not a universal invoice amount. The tariff notes can change the base through applicable additions or reductions. Foreign-trade activity and the Istanbul population adjustment are separate tariff factors, while employee status and other workload characteristics can also affect the result. The applicable class and adjustments should be confirmed by the licensed professional.
For the current-year source, use the İSMMMO Professional Fee Tariffs archive and verify the relevant year’s TÜRMOB / Official Gazette tariff before relying on a number. For the wider first-year company budget and transaction-specific 2026 fee rows, see Company Setup Cost in Turkey: First-Year Budget.
How to Vet a Turkish SMMM
- Verify the licence. Confirm the person or firm’s professional registration through the relevant chamber/TÜRMOB structure.
- Confirm the engagement scope. Ask which declarations, books, payroll items, year-end work and corporate transactions are included.
- Check foreign-owned company experience. Cross-border invoices, shareholder funding, foreign trade and bilingual communication can materially change the workflow.
- Define document delivery. Agree how invoices, bank statements, payroll data and supporting records are submitted each month.
- Clarify extra charges. Ask which transaction-specific reports, declarations or corporate-change work are outside the monthly fee.
- Confirm access and communication. Know who answers tax notices, deadlines and urgent questions.
Can I Use My Accountant Abroad Instead?
An overseas accountant can support group reporting, management accounting or coordination, but that does not automatically give the person authority to perform regulated Turkish professional functions or use Turkish tax filing systems.
The Turkish compliance layer must be handled through a person or arrangement authorised under Turkish rules. Many international groups therefore use both:
- their home-country/group accountant; and
- a licensed Turkish SMMM/YMM arrangement for local statutory compliance.
When Should a New Foreign-Owned Company Arrange CPA/SMMM Onboarding?
Do it before post-registration deadlines become urgent. The professional should understand the company’s activity, first invoices, bank movements, shareholder funding, employees and digital-compliance obligations before the first reporting cycle is due.
This is one reason Workon treats legal registration and operational readiness as separate milestones. A company can exist legally while its accounting, banking and digital-compliance processes are still being activated.
How Workon Coordinates the CPA Onboarding Process
Workon coordinates company formation and post-registration operational readiness for foreign founders and overseas companies entering Türkiye. Depending on the agreed scope, this includes introduction/onboarding coordination with licensed SMMM professionals, document and authorisation sequencing, registered-address/tax-office workflow coordination and connection with the company’s broader banking and operational setup.
Workon does not provide regulated accounting or tax practice itself. Bookkeeping, statutory tax filings and other regulated professional services are handled by appropriately licensed SMMM/YMM professionals under their own professional authority and engagement.
Review Workon’s company registration and operational coordination service.
Official Sources
Last reviewed: 17 September 2026. Professional-signature criteria, filing authority and digital-compliance thresholds can change; confirm the company’s current position with the licensed professional and GİB.
Frequently Asked Questions
Companies have statutory bookkeeping and filing obligations, but an external SMMM is not a universal Trade Registry formation prerequisite. The permitted arrangement depends on professional-signature rules, any in-house licensed professional, relevant YMM certification and the taxpayer's own filing authority. Many foreign-owned SMEs use an external licensed SMMM for local compliance.
Within the engagement and professional authority, an SMMM commonly handles statutory bookkeeping, applicable tax declarations, payroll-related work, period-end records and tax correspondence. Digital-ledger and invoicing duties and transaction-specific reports depend on the company; confirm the included services and authorisations.
An overseas accountant can support group reporting and coordination, but that does not automatically authorise regulated Turkish accounting work or tax-system access. The local statutory layer must use an arrangement authorised under Turkish rules, which can involve licensed local professionals or an eligible taxpayer's own filing authority.
Arrange accounting and tax onboarding before the first post-registration deadlines become urgent. Confirm books, declarations, filing authority, shareholder funding, initial transactions, payroll and digital obligations. A separate professional capital or transaction report is required only where the applicable procedure calls for it.
Costs depend on transaction volume, employee count, and business complexity. Most companies pay a monthly retainer, with extra fees for special projects.
Important: This guide provides general information about Turkish bookkeeping, tax-filing and licensed-professional arrangements; it is not accounting, tax or legal advice. The applicable SMMM/YMM, signature, filing and digital-compliance requirements depend on the taxpayer, activity and current GİB/professional rules. Workon coordinates onboarding but regulated accounting and tax services are performed by appropriately licensed professionals.
