Permanent Establishment in Turkey (2026): When a Foreign Company Must Register and Next Steps

Permanent establishment issues are increasingly important for foreign companies operating in Turkey in 2026. Digital registration workflows, tax-office procedures and e-document requirements make it important to assess potential tax obligations promptly once a taxable presence may arise. For CFOs, in-house tax teams and international business managers, the core issue is deceptively simple: at what point does ongoing activity in Turkey cross from “visiting market” into a reportable, taxable presence, and what must you file once it does? This guide takes a clear position rather than hedging: if your activities, agents or staff create a taxable footprint, you register and comply on a defined timeline, and you choose the right structure deliberately rather than by default.

Below you will find the legal tests, the practical scenarios, a step-by-step registration workflow (MERSIS, tax office and VAT), the post-registration tax and payroll obligations, a side-by-side comparison of your three realistic options, and a decision framework you can act on.

Quick answer: do you need to register a permanent establishment in Turkey?

A foreign company may have a permanent establishment in Turkey if it carries on business through a qualifying fixed place of business or, where the applicable rules provide, through a dependent agent. Whether tax registration or another formal registration is required depends on the facts, Turkish domestic law, and any applicable double tax treaty. A representative office is restricted to its authorised non-commercial activities; activities outside that scope may create tax and regulatory exposure. Obtain a fact-specific assessment rather than assuming that every local activity automatically creates a permanent establishment.

Quick checklist

• Fixed place? Do you have an office, branch, workshop, site or other location at your disposal in Turkey through which business is conducted? Assess the location and activities under domestic law and the applicable treaty.
• Dependent agent? Does someone in Turkey habitually conclude contracts on your behalf, or perform a role covered by the applicable treaty’s dependent-agent test? Review the specific treaty and actual conduct.
• People or invoices? Employees and local supplies may trigger payroll, SGK or VAT obligations, but they do not automatically establish a corporate-tax permanent establishment. Assess each obligation separately.

When a permanent establishment in Turkey arises: legal tests and practical scenarios

Turkey may tax non-resident companies on certain Turkish-source income under the Corporate Tax Law No. 5520 and other applicable legislation. Whether business profits are taxable through a permanent establishment depends on domestic law and, where applicable, the relevant double tax treaty. The treaty definition and its specific conditions must be reviewed alongside the domestic rules; treaty provisions and thresholds differ by country.

The practical takeaway is to assess the facts under both domestic law and the applicable treaty, then determine the relevant tax notifications and registration obligations. Do not assume that the stricter outcome automatically determines the registration route.

Fixed place of business: offices, branches, workshops and mines

A common trigger is a fixed place of business through which an enterprise carries on all or part of its business. Depending on the applicable domestic rules and treaty, examples may include offices, branches, factories, workshops, mines and other fixed locations. The permanence of the location, whether it is at the enterprise’s disposal and the activities conducted there are relevant. Specific treaty exclusions may apply to activities such as storage or display. A trade-fair booth or a leased office should therefore be assessed in context rather than classified automatically.

Dependent-agent test and authority to conclude contracts

Even without Turkish premises, a foreign company may create a permanent establishment through an agent where the relevant domestic or treaty conditions are met. Depending on the treaty, the test may address habitual authority to conclude contracts or a person who habitually plays the principal role leading to their conclusion. Review the contract, actual authority, degree of independence, commercial risk, exclusivity and remuneration. An intermediary acting independently for multiple principals in the ordinary course of its business may be treated differently from a dependent representative; the conclusion is treaty-specific.

Service and construction permanent establishments: duration thresholds

Construction, assembly or installation projects and related supervisory activities may create a permanent establishment once the duration specified in the applicable treaty is exceeded. The threshold is not universally six or twelve months; it varies by treaty. Some treaties also contain a service-PE provision for services performed through personnel in Turkey for a specified period. Review the relevant treaty and track project and personnel days from the beginning.

Digital activities and permanent establishment risk

Cross-border e-commerce into Turkey does not, by itself, necessarily create a traditional fixed-place permanent establishment. However, local warehousing, fulfilment arrangements, personnel or agents may require further analysis under domestic law and the relevant treaty. Separately, VAT and electronic-service rules may impose Turkish tax registration or collection obligations even where no corporate income-tax permanent establishment exists. Assess the permanent establishment question and the VAT question separately.

Employees, agents and representative offices: common scenarios

International businesses should assess the tax and employment implications of sending personnel to Turkey or appointing local agents. Depending on the facts, these arrangements may create permanent establishment exposure, payroll duties or social security obligations, but none of these outcomes should be assumed automatically.

Seconded employees and posted staff: payroll and SGK considerations

Where employees work physically in Turkey, Turkish payroll and SGK obligations may arise, including for short assignments. Social security treatment depends on the applicable domestic rules, any bilateral social security agreement and whether the required certificate of coverage is available. The employing or hosting arrangement should be reviewed to determine who has employer registration and reporting obligations. Personnel working from Turkish premises may also be relevant to a permanent establishment analysis, but the employment and PE tests remain separate.

For a secondment, confirm the assignment period, review any applicable social security agreement and certificate-of-coverage requirements, and separately assess the employee’s duties and work location for permanent establishment purposes.

Dependent versus independent agents: evidence to review

The classification may affect whether an agent creates a permanent establishment under the applicable rules. Review and retain evidence concerning:

• Authority. Does the written mandate allow the agent to conclude or routinely finalise contracts binding the foreign company? Binding authority points to a dependent agent.
• Independence. Does the agent act for multiple principals in the ordinary course of its own business, bearing its own entrepreneurial risk? Genuine independence points away from a PE.
• Control and exclusivity. Detailed instructions, reporting lines, exclusivity and the foreign company’s control over how work is done indicate dependence.
• Remuneration. A simple commission on sales the agent closes on your behalf, combined with exclusivity, strengthens the dependent-agent conclusion.

If an agent routinely concludes or materially facilitates contracts on the foreign company’s behalf, obtain a treaty-specific assessment and determine any resulting tax notification or registration requirements before relying on an independence argument.

Representative offices: permitted activities, VAT and payroll considerations

A representative office established with the required Ministry of Trade permission is limited to the activities authorised for it, which may include liaison, market research and promotion. It cannot be used to conduct commercial activities outside its permitted scope. Activities that go beyond that scope may create tax and regulatory exposure, depending on the facts and applicable rules. A representative office employing local staff must separately assess payroll, income-tax withholding and SGK obligations. Its authorisation does not, by itself, settle the tax treatment of the foreign enterprise’s activities.

Digital sellers and marketplaces

Non-resident digital sellers and platform operators can face VAT obligations in Turkey tied to supplies consumed there, and marketplace facilitators can carry withholding and reporting duties on payments flowing through them. These obligations attach to the supply, not to any office, so a seller with no Turkish premises may still require VAT registration and e-document compliance. If you also hold local stock or use a dependent agent, re-run the income-tax PE analysis in parallel.

Registration and reporting: MERSIS, the tax office and VAT

If a permanent establishment may exist, assess the position promptly and identify the required tax notifications and registrations. The correct procedure depends on whether the company operates through a registered branch, a representative office, a Turkish subsidiary or activities that create tax exposure without a separate Turkish establishment.

MERSIS and the Trade Registry: when formal registration is required

Company and branch registration procedures use MERSIS (the Central Registry Record System) and the Trade Registry, as applicable. The procedure depends on the legal structure:

• Branch of a foreign company. A branch is entered in the Trade Registry via MERSIS. You prepare and file the parent’s constitutional documents, a board resolution to open the branch, appointment of a fully authorised Turkey-resident representative, and the branch’s scope, all with notarised Turkish translations and apostille/legalisation as required.
• Representative office. Requires permission from the Ministry of Trade; it is a liaison vehicle and is not a Trade Registry commercial entity in the way a branch is.
• Taxable presence without a registered branch. A permanent establishment assessment does not automatically require a Trade Registry or MERSIS filing. The foreign company must determine the applicable tax notification and registration requirements based on its activities and legal status.

Typical document pack for a branch or registered presence:

• Power of attorney authorising local filing and representation, notarised and apostilled.
• Parent Articles of Association / certificate of incorporation with certified Turkish translation.
• Board resolution approving the Turkish presence and appointing the authorised representative.
• Passport copies / identity of the authorised signatory and representative, plus a Turkish tax identity number for each.
• Specimen signature of the Turkey representative, notarised.

Tax registration and tax identification (Vergi Kimlik Numarası)

A foreign company with Turkish tax obligations should determine the relevant tax identification and registration requirements. The documents and tax office procedure depend on the taxpayer’s status and whether it operates through a registered branch or another arrangement. For a branch, registry records and representative details may be required. Tax registration should be coordinated with the company’s actual activities and any treaty position.

VAT registration and electronic document obligations

VAT registration in Turkey depends on the nature and place of the supplies and the applicable Turkish VAT rules; it should not be assumed to follow automatically from every permanent establishment assessment. Depending on the taxpayer and transactions, relevant electronic document systems may include e-Fatura, e-Arşiv, e-Defter and e-İrsaliye. For certain cross-border services, the reverse-charge mechanism may require the Turkish recipient to account for VAT. Confirm the registration, invoicing and e-document requirements before issuing the first invoice.

Tax registration workflow and practical sequencing

Sequencing matters. In practice:

1. Confirm the PE trigger and chosen structure.
2. Prepare and legalise any required documents. Notarisation, translation and apostille or consular legalisation may affect timing, depending on the country and document.
3. Complete Trade Registry and MERSIS procedures if a branch is being registered; otherwise, determine the applicable tax notification and registration route.
4. Complete the relevant tax registration and obtain any required tax identification number.
5. Complete VAT and electronic document registrations where required.
6. Complete employer and employee notifications with SGK before employment begins, where required.

Post-registration first filings and deadlines

Filing frequency and deadlines depend on the relevant tax and the taxpayer’s status. VAT returns, withholding declarations, advance corporate tax and annual corporate tax returns may apply under different rules and calendars. Confirm the current deadlines with GİB and the relevant advisor rather than assuming that every obligation begins on the date a tax file is opened.

Tax and compliance obligations where a permanent establishment exists

Where a foreign enterprise is taxable through a permanent establishment in Turkey, the relevant Turkish tax and compliance obligations depend on the applicable legislation and treaty. The following areas should be reviewed according to the company’s circumstances.

Corporate income tax: taxable profits, filing and payment

Under the Corporate Tax Law No. 5520, a PE is assessed on the net profit attributable to its Turkish activity, computed broadly like a resident company’s trading profit for that activity. Taxpayers file an annual corporate tax return and pay advance corporate tax during the year, with the balance settled on the annual filing. Because the headline corporate tax rate is periodically adjusted by law, confirm the current rate on the GİB site before budgeting. The attribution of profit to the PE, which revenues and which deductible expenses belong to Turkey, is heavily scrutinised, so maintain contemporaneous records that justify the split.

VAT: taxable supplies, invoicing and returns

VAT Law No. 3065 applies VAT to supplies of goods and services performed in Turkey. A registered PE charges, collects and remits VAT on its taxable supplies, files periodic VAT returns, and recovers input VAT where permitted. Place-of-supply rules determine whether a service is Turkish-taxable; for cross-border services the reverse charge may apply, shifting accounting to a Turkish recipient. Your e-invoice and e-ledger obligations run alongside the return cycle, digital compliance is not separable from the VAT return itself. Current VAT rates are set by law and secondary legislation; confirm them before applying.

Withholding tax on payments to non-residents

Turkish withholding tax may apply to particular payments depending on the payment type, source, recipient, domestic law and any applicable double tax treaty. The payer may have withholding and reporting obligations. Treaty relief may be available where the relevant conditions and documentation requirements are satisfied. The following table gives broad examples only; the applicable treatment and rate must be checked for each payment:

The identity of the withholding agent and the economic burden should be determined under the rules applicable to the specific payment; they should not be assumed to be the same in every case.

Payroll and SGK obligations for employees in Turkey

Employing staff in Turkey may require employer registration with SGK, employee nvatotifications, social security contributions and income-tax withholding on salaries. The precise obligations and deadlines depend on the employment arrangement and applicable rules. For seconded staff, an applicable social security agreement and certificate of coverage may affect the contribution position; confirm the relevant requirements before the assignment begins.

Transfer pricing and documentation

Where a Turkish entity or taxable presence has transactions with related parties, the applicable transfer pricing rules and documentation requirements should be reviewed. Depending on the taxpayer and relevant thresholds, documentation may include local-file, master-file or country-by-country reporting requirements. The treatment of head-office allocations, financing, services and other related-party dealings should be supported by appropriate records.

Annual reconciliation, reporting and penalties

In addition to periodic returns, the company should reconcile withholding, finalise its annual tax position and complete any required transfer pricing disclosures. Late or inaccurate filing may result in penalties and interest under applicable legislation. Maintain a compliance calendar and confirm the obligations and deadlines relevant to the taxpayer.

Representative office vs branch vs local subsidiary

This is the decision at the centre of the whole exercise. The three realistic structures carry very different tax, cost, liability and compliance profiles. The grid below compares them dimension by dimension; the framework that follows tells you which to choose.

Practical checklists, timelines and templates

Use the following as an indicative planning checklist once a potential permanent establishment or other Turkish registration obligation has been identified. Actual timing depends on the procedure, documents and authorities involved:

1. Initial assessment: Confirm the relevant tax and legal position, choose the appropriate structure where needed, and appoint a Turkish advisor or authorised representative if required.
2. Document preparation and registration: Prepare the required documents and complete the relevant Trade Registry/MERSIS or tax-office procedures, as applicable.
3. Tax and VAT compliance: Complete the relevant tax registrations and electronic document enrolments where required.
4. Before employment begins: Complete applicable SGK and payroll procedures and verify any certificate-of-coverage requirements.
5. Ongoing compliance: Confirm the filing calendar and prepare the required accounting, tax, payroll and transfer pricing documentation.

Potential documents: power of attorney, parent company constitutional documents, board resolution, identity documents, Turkish translations, apostille or legalisation, and signature documents where required. Confirm the exact list with the relevant authority.

Decision framework and three worked scenarios

• Choose a Representative Office when your presence is strictly liaison, market research or promotion, with no invoicing and no local contracting, and you can evidence that staff duties are non-commercial.
• Assess permanent establishment exposure when the company has a fixed place of business, uses agents in Turkey or carries out services or projects that may meet the applicable domestic or treaty tests. A permanent establishment is a tax concept, not a separate legal structure to elect by itself.
• Choose a Local Subsidiary when you need full contracting capacity, want limited liability, or expect substantial, long-term Turkish revenue and operations.

Service provider: a foreign consultancy whose Turkish representative negotiates or concludes client contracts should review the dependent-agent provisions of the applicable treaty. Construction contractor: a long-running site should be monitored against the duration threshold in the relevant treaty. Seconded employees: review SGK coverage and payroll withholding separately from the question of whether the personnel and their workplace create a permanent establishment.

Conclusion

A permanent establishment in Turkey is assessed according to the company’s actual activities, premises, agents and personnel, together with the applicable domestic rules and treaty provisions. Foreign companies should assess potential tax exposure early, distinguish tax registration from formal establishment procedures, and determine their VAT, payroll and social security obligations separately. The appropriate operating structure should be chosen after reviewing the company’s activities, legal requirements and commercial objectives.

This article is for informational purposes and does not constitute legal advice; obtain tailored advisory support before acting on any specific set of facts.

Need Expert Advice?

This article was produced by A&M Consulting Co. For specialist advice on this topic, contact Abdullah MERCANLI at A&M Consulting Co., a member of the Global Law Experts network.

Sources

1. Turkish Revenue Administration (Gelir İdaresi Başkanlığı – GİB)
2. Turkish Official Legislation Portal (Mevzuat.gov.tr)
3. Social Security Institution (SGK)
4. Republic of Türkiye Ministry of Trade
5. MERSIS, Central Registry Record System (Ministry of Trade)
6. OECD, Tax Treaties & Model Convention resources