Quick answer
Choose a Turkish NACE code by matching the company’s real main activity, licensing needs, tax profile, workplace risk and current official classification.
The correct NACE code in Turkey is the code that best reflects the company’s real principal activity. It should not be selected only because it looks broad or convenient: the code can affect chamber records, tax-office classification, workplace hazard class, licences, incentives and how authorities understand the business.
Start with the Operating Model
Write a plain-language description of what the company will sell, to whom, how it delivers, where it operates and which activity will generate the largest or most central revenue stream. Then map that activity to the current six-digit Turkish classification and separately identify secondary activities.
TÜİK announced the NACE Rev. 2.1 six-digit 2026 classification for the current year. Use the live official classification and conversion resources rather than copying a code from an older company or blog. See TÜİK public classification announcements.
Checks Before Confirming a Code
| Check | Practical question |
|---|---|
| Main revenue activity | Which activity is genuinely central to the business? |
| Regulated activity | Does the wording imply a licence, authorization or professional restriction? |
| Workplace risk | Does the code affect occupational health and safety classification? |
| Tax and incentives | Is treatment linked to a specific eligible activity? |
| Address suitability | Can the activity legally and practically operate at the selected address? |
| Articles of association | Does the purpose clause cover the planned activity without being misleading? |
Main and Secondary Activities
A company may conduct more than one permitted activity, but it still needs a defensible principal activity. Secondary activities should be consistent with the articles, permits and actual operations. If the business model changes materially, update the registry and tax records through the proper process rather than leaving the old classification in place.
Common Errors
- Copying a competitor’s code without checking actual delivery.
- Selecting “consulting” when the real activity is regulated or product-based.
- Ignoring e-commerce, import/export or manufacturing elements.
- Using an obsolete NACE version.
- Assuming a broad articles clause eliminates licence requirements.
- Failing to update the code after a business pivot.
The code is one input in the MERSIS registration process and the broader company formation in Turkey plan. After registration, keep accounting records consistent with the real activity through accounting services in Turkey.
Validate the Activity Before Filing
Celikel CPA can align the NACE code, articles, tax setup and operating model before the registry submission. Request a formation review or read the MERSIS guide.
Official Source
Need practical support in Turkey?
Discuss the accounting, tax, payroll, or company setup implications of your situation with a licensed local professional.
Frequently Asked Questions
What is a NACE code in Turkey?
It is an economic-activity classification used in official records. The six-digit Turkish code should describe the company’s principal real activity under the current classification.
Can a company have more than one NACE activity?
Yes, a company may conduct multiple lawful activities, but its principal activity should be identified accurately and secondary activities should be reflected where required.
Does the NACE code determine tax automatically?
Not by itself. It can influence classification and some sector-specific rules, but tax treatment ultimately follows the law and the company’s actual transactions.
Can the NACE code be changed later?
Yes. A genuine change in activity can be reflected through the applicable registry and tax procedures. Related licences and records should be reviewed together.
Is a licence included with NACE registration?
No. Selecting a code does not grant a sector licence or operating permit. Regulated activities require a separate authorization analysis.