Contents 13 sections
A foreign shareholder does not merely affect a Turkish company’s ownership chart. It can also place the company or branch within Turkey’s foreign direct investment reporting framework. E-TUYS is the Ministry of Industry and Technology’s electronic system for collecting this information. The compliance task is not a single annual form: it combines an annual activity filing with event-based updates for capital and share changes.
The control point
A company within the foreign direct investment framework should complete its annual activity information in E-TUYS by the end of May. Capital increases or decreases, capital payments and share transfers can trigger separate one-month reporting periods.
The safest process is to assign one data owner, one authorised E-TUYS user and one dated evidence file. Do not wait for the annual filing to report a transaction that has its own event-based deadline.
What is E-TUYS?
E-TUYS stands for Elektronik Teşvik Uygulama ve Yabancı Sermaye Bilgi Sistemi, the Electronic Incentive Implementation and Foreign Capital Information System. The system is administered by the General Directorate of Incentive Implementation and Foreign Investment within the Ministry of Industry and Technology.
For foreign direct investment reporting, E-TUYS replaced paper submission of the activity, capital and share-transfer information previously sent to the Ministry. It is also used for investment incentive processes, but a company’s foreign investment reporting should not be confused with an application for an investment incentive certificate.
The legal entity remains responsible for the accuracy and timeliness of its information even where an employee, lawyer or accountant is authorised to use the system. Our tax, bookkeeping and accounting service in Turkey can integrate this reporting with corporate records and recurring accounting controls.
Does your entity fall within foreign investment reporting?
The first step is a legal-entity and ownership test. Under the implementing regulation for the Foreign Direct Investment Law, Turkish companies and Turkish branches established by foreign investors are within the reporting framework. A wholly Turkish-owned company can enter the framework later if a foreign investor acquires shares or participates in a capital increase.
| Entity or event | Initial reporting view | Evidence to check |
|---|---|---|
| Turkish LLC or JSC with a foreign individual or corporate shareholder | Generally within the FDI reporting framework | Current shareholder ledger, trade registry records and ownership chart |
| Registered Turkish branch of a foreign company | Generally within the framework | Branch registration and foreign head-office records |
| Previously domestic company receiving a foreign shareholder | Entry into the framework must be reviewed immediately | Share transfer or capital-increase documents and payment records |
| Liaison office | Different Ministry permission and annual reporting route | Liaison-office permit, approved activity and annual office form |
| Overseas company with no Turkish company or registered branch | Do not assume this company/branch reporting route applies | Actual Turkish presence, registration and investment structure |
Scope warning
“Foreign-owned” is not a substitute for reviewing the legal structure. A subsidiary, branch and liaison office have different identities and reporting routes. If the structure itself is unclear, first compare the options in our Turkey business structures guide.
Authorisation and data ownership
An E-TUYS filing should begin with authority, not data entry. The company or branch authorises a user who will submit information electronically on its behalf. Current Ministry guidance should be checked for the required application documents, qualified electronic signature and submission channel before relying on an old authorisation file.
Separate the three operational roles
Corporate owner: confirms shareholder, capital and representation records.
Financial data owner: prepares the annual activity figures and reconciles them to the statutory accounts.
Authorised E-TUYS user: enters, reviews and submits the information through the system.
One person may perform more than one role, but the responsibilities should still be documented. If the authorised employee leaves, the company changes accountant or the electronic signature expires, the reporting obligation does not pause. Maintain a renewal and revocation control instead of discovering an access problem near a deadline.
Initial system data after authorisation
The implementing rules require the investor, shareholder list and any affiliated-participation information to be entered after authorisation. This is not a one-time clerical exercise. The opening dataset should agree with the trade registry, articles of association, shareholder ledger, capital payments and the current group ownership chart.
Annual activity filing: the end-of-May obligation
Companies and branches within the framework must complete the fields in the E-TUYS Annex 1 Activity Information Form on an annual basis by the end of May. The return concerns the preceding activity period and should be prepared from finalised, supportable data rather than an unreviewed management estimate.
A calendar reminder is useful, but it is not a complete control. The reporting team should first map each requested field to an owner and source record. Depending on the system fields and the entity, the working file may draw on corporate identity data, ownership, capital, employment, financial statements, activity classification, imports, exports and other operating information.
Annual close-to-E-TUYS reconciliation
Freeze the reporting population: confirm which Turkish entities and branches are in scope.
Confirm corporate master data: legal name, tax identity, address, activity and ownership.
Reconcile financial figures: trace submitted amounts to the final trial balance and financial statements.
Reconcile operating data: document the source for employment, trade and activity fields.
Review changes since the previous filing: explain capital, shareholder, activity or structural movements.
Submit and archive: retain the submission result, review sign-off and supporting workbook.
Event-based filings: the one-month clock
Annual reporting does not absorb transaction reporting. The implementing regulation creates separate one-month periods for specified capital and ownership events. The triggering date is not necessarily the date on which the accounting team first sees the documents.
| Trigger | E-TUYS action | Timing under the regulation | Core evidence |
|---|---|---|---|
| Capital increase or decrease | Update the shareholder list | Within one month of the event | Resolution, registered capital record and updated shareholder ledger |
| Payment related to a capital increase | Complete the Annex 2 Capital Information fields | Within one month following payment | Bank receipt, shareholder identity, currency and capital documentation |
| Payment related to a share transfer | Complete the Annex 2 Capital Information fields where applicable | Within one month following payment | Transfer agreement, payment evidence and ownership records |
| Transfer between existing shareholders or to an outside investor | Update the shareholder list | Within one month after the transfer | Transfer, approval/registration and updated shareholder ledger |
| Foreign investor enters a previously domestic company | Enter investor, shareholder and any affiliate data | Within one month after the transfer bringing the company into scope | Complete transaction and ownership file |
A single transaction can affect more than one field and can involve more than one date. For example, a capital resolution, trade-registry registration and bank payment may occur on different days. Record the legal event date, payment date and reporting action separately rather than using one generic “transaction date.”
A practical responsibility matrix
| Task | Primary owner | Reviewer | Completion evidence |
|---|---|---|---|
| Identify reportable ownership or capital event | Company secretary, legal or management | Finance/accounting | Dated trigger notice |
| Reconcile payment and capital data | Finance | CPA/accounting reviewer | Bank-to-ledger reconciliation |
| Maintain ownership master data | Corporate owner | Management/legal | Signed ownership chart and shareholder ledger check |
| Enter and submit in E-TUYS | Authorised user | Assigned approver | System submission record |
| Prepare annual activity dataset | Finance/accounting | Management and authorised user | Reviewed mapping workbook and sign-off |
Evidence and review checklist
Keep a filing pack that allows a reviewer to reproduce the submission without relying on the memory of the person who entered it. A proportionate file should include:
current trade registry records, articles and shareholder ledger;
group structure showing direct and ultimate ownership;
share transfer agreements, capital resolutions and registration evidence;
bank receipts and a clear explanation of payer, currency, amount and purpose;
final trial balance, financial statements and field-by-field annual data mapping;
headcount and operating data reconciled to the responsible records;
E-TUYS authority documents, user status and electronic-signature control;
submission output, review approval and any corrective correspondence.
Where balances were inherited from a previous adviser, first resolve unsupported equity, bank or shareholder positions. Our guide to unreconciled opening balances after an accountant change explains how to build that evidence trail.
Common E-TUYS reporting failures
Treating E-TUYS as an annual-only filing: a reportable share or capital event is left until May.
Using the registry date for every deadline: payment and transfer dates are not separately tracked.
Submitting unreconciled figures: annual information does not agree with the final ledger or financial statements.
Outdated ownership data: the E-TUYS shareholder list, shareholder ledger and group chart tell different stories.
Single-user dependency: the only authorised user leaves or loses access without a handover.
Confusing entity types: a liaison office is processed like a commercial subsidiary or branch.
Assuming no cash means no action: shareholder-list updates and capital information are not the same reporting step.
Do not confuse the filing with the underlying transaction
E-TUYS reporting does not replace a trade-registry filing, shareholder-ledger update, corporate approval, bank documentation, tax review or accounting entry. The transaction must be legally completed and accurately recorded before its reporting data can be trusted.
Year-round compliance calendar
At every board, manager or shareholder action: ask whether capital or ownership changes.
At every shareholder payment: identify whether it is capital, share consideration, a loan or another transaction before booking it.
Monthly: review registry, shareholder and equity movements for unreported triggers.
After year-end close: prepare the annual activity mapping from final records.
Before the end of May: complete, review and submit the annual activity information.
On every user change: verify access, electronic signature, authority and handover.
How accounting support should work
For an international group, E-TUYS reporting works best as an extension of the month-end and year-end close. The Turkish finance team should not receive a foreign shareholder transaction only after the group legal team has completed it. Create an advance notification rule for proposed capital, share and ownership changes.
An English-speaking Turkish CPA can coordinate the corporate records, accounting data and filing timetable, but management must still provide complete transaction documents and approve the reported information. The engagement scope should state who monitors events, who prepares data, who submits and who retains evidence.
Build an E-TUYS reporting file before the deadline
We help foreign-owned Turkish companies connect shareholder records, capital movements, annual accounting data and E-TUYS responsibilities in one reviewable compliance workflow.
Official sources
Investment Office of the Presidency: Establishing a Business and E-TUYS
Ministry of Industry and Technology: E-TUYS Authorisation Documents and Guidance
Reviewed on 14 October 2026. This article provides general information. Filing scope, trigger date, system fields and required evidence must be checked against the entity’s legal form, ownership, transaction documents and the rules effective for the relevant event.
Share this guide with your network
Choose a platform and share the article with its title, link and preview image ready.
Need advisory on this topic?
Contact us by WhatsApp or phone, or submit your request using the short form below.
