Quick answer
What foreign-invested companies and branches in Turkey report through E-TUYS, including activity, capital and share-transfer information and authorization.
E-TUYS is the Ministry of Industry and Technology’s electronic system for foreign-investment information and incentive processes. Companies and branches in Turkey with foreign investors use it for specified foreign direct investment information; it is separate from MERSIS, tax returns and ordinary accounting filings.
What Information Is Reported?
Official investment guidance identifies three principal foreign-investment information groups received electronically through E-TUYS:
- FDI Activity Information Form.
- FDI Capital Data Form.
- FDI Share Transfer Data Form.
The Invest in Türkiye establishment guide explains that these forms are received electronically rather than on paper. Reporting scope and timing should be checked against the current FDI legislation and system guidance for the company’s event and period.
E-TUYS vs MERSIS
| System | Main purpose |
|---|---|
| MERSIS | Commercial registry data and company registry processes |
| E-TUYS | Foreign investment information and electronic incentive processes |
| Digital Tax Office | Tax registration, returns, payments and tax administration services |
| SGK systems | Employment and social security registrations and filings |
A share transfer may therefore require coordinated work across the Trade Registry, E-TUYS, accounting records, tax analysis and beneficial-ownership or bank KYC updates.
Authorization and Internal Ownership
E-TUYS actions are performed by an authorized user under the Ministry’s authorization process. The company should keep authorization current, identify an internal data owner and reconcile reported capital and ownership information with registry, bank and accounting records. The Ministry publishes E-TUYS authorization documents and guidance.
A Practical Compliance Workflow
- Identify whether the company or branch is within foreign-investment reporting scope.
- Complete user authorization before a reporting event becomes urgent.
- Reconcile shareholder, capital and transfer data with MERSIS and statutory records.
- Prepare the applicable activity or event information.
- Submit through the official system and retain evidence.
- Update the compliance calendar after capital or ownership changes.
For formation-stage planning, see company formation in Turkey and MERSIS registration. Our foreign investment consultancy covers ongoing coordination.
Coordinate Foreign Investment Reporting
Celikel CPA can align E-TUYS data with registry, accounting and tax records for foreign-invested companies. Request a compliance review or explore foreign investment consultancy.
Official Sources
- Invest in Türkiye — E-TUYS and Establishing a Business
- Ministry of Industry and Technology — E-TUYS User Guidance
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 does E-TUYS stand for?
It is the Electronic Incentive Application and Foreign Investment Information System managed by the Ministry of Industry and Technology.
Is E-TUYS the same as MERSIS?
No. MERSIS supports commercial registry processes. E-TUYS receives specified foreign-investment information and is also used for electronic investment-incentive processes.
Which foreign investment forms are submitted electronically?
Official guidance lists the FDI Activity Information, FDI Capital Data and FDI Share Transfer Data forms as information received through E-TUYS.
Who can submit an E-TUYS filing?
An authorized user acts through the system under the Ministry’s authorization procedure. Companies should arrange authorization and keep supporting documents current.
Does an E-TUYS filing replace registry or tax filings?
No. It is a separate compliance stream. The same event may also require Trade Registry, tax, accounting, bank or other regulatory updates.