By Av. Serkan Kara, Istanbul Bar No. 53770. Last updated: 14 June 2026.
International tax planning for groups with a Turkish footprint now turns on the OECD Pillar Two global minimum tax (the GloBE Rules), which sets a 15% jurisdictional minimum effective tax rate for multinational groups whose consolidated revenue meets the EUR 750 million threshold. Turkey has adopted a domestic minimum tax in line with this framework, so cross-border structuring is no longer about finding the lowest statutory rate. It is about managing the effective tax rate, building audit-ready documentation, and surviving anti-abuse and substance scrutiny. Turkish participation exemption (Corporate Tax Law No. 5520, Article 5) and mandatory transfer pricing documentation (Law No. 5520, Article 13) sit at the centre of any defensible plan, and all rates and thresholds below should be confirmed in force at the time of filing.
What is the global minimum tax and how does it apply to a Turkish structure?
The global minimum tax is the OECD Pillar Two framework, implemented through the GloBE Model Rules and adopted into domestic law by participating jurisdictions including Turkey. It imposes a 15% minimum effective tax rate, measured jurisdiction by jurisdiction, on multinational enterprise groups that meet the EUR 750 million consolidated revenue threshold. Where a jurisdiction’s effective tax rate falls below 15%, a top-up tax is computed and collected.
It is not a single worldwide tax. It is a coordinated set of domestic implementations that interact, so you plan against a network of rules rather than one statute. For a group with Turkish entities, the practical questions are: are you in scope, what is your jurisdictional effective tax rate in each country, and which jurisdiction is entitled to collect any top-up. If your Turkish incentive position pushes the local effective rate below the minimum, the gap can be recaptured rather than retained.
Who is in scope of Pillar Two?
Pillar Two generally applies to multinational enterprise groups with annual consolidated group revenue at or above the EUR 750 million threshold set by the GloBE Rules, with detailed provisions for constituent entities, exclusions, and transitional mechanics. Below that threshold, a group is typically outside the global minimum tax, though ordinary Turkish corporate tax and transfer pricing rules still apply in full.
A board-level scoping review looks at the consolidated revenue figure at group level, the ownership and control chain, any presence in low-tax jurisdictions or incentive regimes, significant intangible income streams, and reliance on special zones or tax holidays. Confirm the revenue threshold and any transitional relief in force for the relevant fiscal year, because the precise figure and timing rules are set by the implementing legislation.
How is the top-up tax calculated, and what is QDMTT?
The calculation is jurisdictional. For each country, the group determines the GloBE income, the covered taxes associated with that income, and the resulting effective tax rate. If that rate is below 15%, a top-up percentage is applied to the relevant base, after specified exclusions, safe harbours, and ordering rules. A Qualified Domestic Minimum Top-up Tax (QDMTT) lets the source jurisdiction collect that top-up itself rather than ceding it to another country’s rule set.
QDMTT changes the structuring logic: a low statutory rate becomes less valuable, while administrative certainty, safe-harbour eligibility, and clean documentation become more valuable. Where domestic law treats a QDMTT as qualified, expect evidence requests, so build computation files, a reconciliation to the financial statements, and a memo explaining how the position meets local rules. Model the interaction between QDMTT, the income inclusion rule, and the under-taxed payments backstop together, never in isolation, or you cannot forecast cash tax reliably.
What documentation does a defensible cross-border structure need?
A defensible structure rests on substance evidence and contemporaneous transfer pricing documentation, which is mandatory in Turkey under Corporate Tax Law No. 5520, Article 13 (disguised profit distribution through transfer pricing). The core question is whether your intercompany agreements match real conduct: who performs the value-creating functions, and who controls and can bear the relevant risks. If contracts do not match operating reality, the structure is exposed to re-characterisation.
Build a beneficial ownership and substance pack for each material cross-border flow:
- board minutes, decision logs, and evidence of where key decisions are actually taken;
- residence certificates with their validity windows, for treaty claims;
- bank account control evidence, office and payroll proof;
- intercompany agreements that are signed and actually followed, with year-end true-ups documented transparently;
- a distribution policy consistent with cash flows.
A single coherent file matters because the same questions arrive from three directions at once: the tax authority, the paying bank’s compliance team, and investor diligence. Contradictions between your statutory accounts, transfer pricing file, and tax returns are read against the taxpayer.
Can you still use a Turkish holding structure for treaty benefits?
Yes, but only where the structure has real substance and a documented commercial rationale, because treaty benefits in 2026 are tested against principal-purpose and anti-abuse analyses. Turkey relies on an extensive network of double taxation treaties and on the participation exemption for qualifying foreign subsidiary dividends under Corporate Tax Law No. 5520, Article 5. Paper residency is fragile: if a holding company has no operational role, it becomes a target, and withholding relief can be denied at the payment stage before any audit.
A defensible Turkish platform reflects real operations such as management, treasury, procurement, or regional services, supported by staff, robust transfer pricing, and a documented business purpose. An indefensible one is a shell used only to route dividends or royalties. Confirm the dividend withholding rate and any treaty reduction in force at the time of distribution, since these rates are set by regulation and by the applicable treaty rather than fixed.
How do remote work and digital nomads create permanent establishment risk?
Remote work can create a permanent establishment and payroll tax exposure where employees habitually conclude contracts, manage key functions, or act as dependent agents in another jurisdiction. Authorities increasingly treat distributed teams as a taxable presence when the facts support it, so the risk is driven by what people actually do, not by job titles.
The common triggers are sales staff concluding contracts locally, senior executives habitually managing the business from one country, local dependent agents acting as a sales arm, and a home office that becomes a fixed place of business. Risk control is mainly governance: define who can bind the company and where, keep contract signature authority centralised, and maintain logs that show where revenue-generating decisions are approved.
Incentive jurisdiction versus minimum-tax exposure: which approach holds up?
The classic model of booking margin in a low-tax or incentive entity weakens once Pillar Two and QDMTT can capture the top-up. The table below contrasts the legacy approach with a 2026-aligned redesign so the decision is explicit.
| Factor | Legacy low-rate structure | 2026 substance-aligned design |
|---|---|---|
| Primary lever | Lowest statutory rate | Defensible effective tax rate |
| Profit location | IP or services in incentive entity | Profit follows functions and control |
| Minimum-tax outcome | Effective rate below 15% triggers top-up | Effective rate managed toward the minimum |
| Treaty position | Fragile under principal-purpose test | Backed by substance and documentation |
| Dispute risk | High, re-characterisation likely | Lower, audit-resilient |
The redesign is usually incremental: narrow shifted profit to what the incentive entity can justify operationally, move real functions and governance to match the profit allocation, reinforce transfer pricing with contemporaneous evidence, and build safe-harbour and QDMTT positions to reduce double-collection disputes. The goal is not zero tax. It is a stable effective rate, predictable cash tax, and lower dispute volatility.
Frequently asked questions
Is the 15% global minimum tax a single worldwide rate?
No. The 15% minimum is implemented through domestic laws that each calculate a jurisdictional effective tax rate and impose a top-up tax through defined mechanisms under the OECD GloBE Rules. The outcome for your group depends on where it operates and how each country, including Turkey, has implemented the framework into local law.
Does QDMTT eliminate top-up tax?
Not necessarily. A Qualified Domestic Minimum Top-up Tax mainly shifts where the top-up is collected, allowing the source jurisdiction to capture it rather than ceding it abroad. You still need correct jurisdictional calculations, a reconciliation to your financial statements, and a safe-harbour analysis to keep the position defensible under audit.
Is transfer pricing documentation mandatory in Turkey?
Yes. Corporate Tax Law No. 5520, Article 13 governs transfer pricing through the disguised profit distribution rules, and contemporaneous documentation supporting arm’s length intercompany pricing is required. Under a minimum-tax regime this matters even more, because pricing controls where profit is recognised and whether your tax story is consistent with real conduct.
Can a shell holding company still obtain treaty benefits?
Generally no. Anti-abuse and principal-purpose analysis, together with beneficial ownership scrutiny, can deny treaty benefits to structures without commercial substance. A holding entity needs real decision-making, people, and risk-bearing capacity, plus a documented business purpose, for treaty relief and the participation exemption to hold up.
Do remote workers really create tax exposure for the group?
They can. Where employees habitually conclude contracts or run key functions from a jurisdiction, authorities may assert a permanent establishment or payroll tax presence there. The exposure depends on the facts and on the authority involved, so role design, centralised signing authority, and clear written policies are the practical defences.
When should legal counsel be involved alongside tax advisors?
Involve counsel when the structure touches corporate governance, beneficial ownership, substance evidence, cross-border contracts, or dispute risk, and whenever you need a defensible legal narrative that aligns the documentation with operational reality. Our cross-border tax practice coordinates this with the transfer pricing and treaty analysis so the file tells one coherent story.
For a structured review of a cross-border group with Turkish entities, our tax law and customs regulations advisory team can scope your Pillar Two position, test your effective tax rate, and stress-test substance and documentation before filing.
Related reading: the tax system in Turkey for resident and non-resident liability, value added tax (VAT/KDV) in Turkey for indirect tax on cross-border supplies, and Turkish banking and finance law for the compliance side of cross-border distributions.
General information, not legal advice. Turkish law; verify your specific situation with qualified counsel.
Related legal guides
- For related guidance, see our business and corporate law.