Track and manage your tax obligations with confidence.
From tax return processes to tax planning, from double taxation treaties to audit support, we manage tax compliance end to end. On the TR–DACH axis, we bring clarity to cross-border taxation.
Tax compliance provides predictability
Tax compliance is not limited to merely filing returns; it is a continuous process that involves fulfilling obligations at the right time, in the right amount and in line with the legislation. Law No. 213 (Turkish Tax Procedure Law) and the relevant tax legislation impose strict rules on declaration, payment, documentation, and audit processes. Non-compliance can lead to consequences ranging from late-payment interest to tax-loss penalties.
At Köksal, we coordinate tax compliance as an inseparable part of our corporate secretarial service. From obligation analysis to declaration and payment tracking, from the application of double taxation treaties in cross-border transactions to support during the audit process, we establish a predictable tax framework along the Türkiye–DACH corridor.
When Does This Apply?
From declaration and payment tracking to cross-border taxation, from audit processes to planning, we are by your side at every stage of tax operations.
Declaration & Payment Tracking
We monitor the deadlines for returns such as corporate income tax, VAT, and withholding tax, and track declaration and payment obligations.
Cross-Border Taxation (DTT)
In Türkiye–DACH transactions, we ensure the correct application of double taxation treaties and the prevention of double taxation.
Tax Audit
In tax audit and inspection processes, we stand by you with document preparation, representation, and a defence strategy.
How Does the Process Work?
We manage tax compliance in three stages, end to end, from obligation analysis to audit support.
01 · Obligation Analysis
We identify tax obligations according to your activities and transaction structure, and assess risks and opportunities in advance.
02 · Declaration & Tracking
We coordinate tax return processes, monitor the payment schedule, and ensure obligations are fulfilled on time.
03 · Audit Support
In cases of tax audit and disputes, we provide strategic support in documentation, representation, and defence processes.
We approach taxation as a legal strategy
Tax compliance is as much a legal strategy as it is a technical operation. Particularly in cross-border transactions, the correct interpretation of double taxation treaties determines both compliance and predictability. At Köksal, drawing on our experience along the Türkiye–DACH corridor, we manage taxation, accounting and legal work as a single workstream.
- Complete and timely handling of the declaration and payment schedule
- Accurate application of TR–DACH double taxation treaties
- A defensible, legislation-compliant approach to tax planning
- Prepared representation and defence in tax audits
- Single-point coordination with accounting and corporate processes
Specialised Sub-Services
Tax Compliance — the focused applications of this service for particular needs.
OSS / IOSS & EU VAT Registrations
VAT compliance on B2C sales to the EU: setting up OSS/IOSS registrations, the filing regime, threshold monitoring, marketplace (deemed supplier) scenarios, and warehouse/fulfilment registrations.
Explore →Investment Incentive Certificate Advisory
From incentive modelling to the E-TUYS application, from revision procedures to the completion visa; single-source management of the entire life cycle of the investment incentive certificate.
Explore →Tax Audit & Settlement
From the first notice of the audit to the settlement table and, if necessary, to tax litigation; management of documents, defence and strategy throughout the process.
Explore →Pre-Investment Tax Modelling
Modelling tax scenarios before investment and structuring decisions: entity type, financing, profit distribution, and double taxation effects.
Explore →Government Supports & Grant Programmes
KOSGEB, TÜBİTAK, development agencies, and export supports: eligibility screening, application file, and commitment-audit compliance.
Explore →Other Corporate Secretarial Services
When needed, the same team can seamlessly extend its work to our other solutions in this area.
Related Areas & Legislation
The focus areas, practice areas, desks and legislation connected with this service.
Our Matters in This Service
The anonymised examples of our work that relate to this service.
Cross-border acquisition of a manufacturing facility in Türkiye
End-to-end representation of the buyer in a multi-jurisdictional acquisition, from due diligence to closing.
Review the matter →Investment · GreenfieldStructuring an incentivised manufacturing investment
Management of company formation, the incentive certificate and compliance processes in a greenfield investment.
Review the matter →Dispute · TaxConcluding a tax audit through settlement
In a transfer-pricing-focused audit; representation from the minutes stage through report assessment, and execution of the settlement strategy.
Review the matter →The Team Delivering This Service
With our multilingual team of lawyers, well-versed in Turkish and German law, we are by your side.
Related Publications
Fresh perspectives and guides from the Knowledge Centre.
A typical capital company files monthly VAT and a withholding-and-premium service return, quarterly advance tax, and an annual corporate tax return. Those obligations rest respectively on the VAT Law (No. 3065), the Income Tax Law (No. 193), the Social Insurance and General Health Insurance Law (No. 5510) and the Corporate Tax Law (No. 5520). Depending on what you do, stamp tax, special consumption tax (ÖTV) or acco…
Yes. The pre-assessment and post-assessment settlement mechanisms can significantly reduce penalty and late-payment burdens; and where settlement is not reached or not chosen, the reduction-in-penalties provisions of the Tax Procedure Law (No. 213) or an action in the tax court remain open. These routes are alternatives to one another, and each runs on a short statutory clock: a missed deadline forfeits the right in…
Yes. As part of ongoing tax compliance we monitor changes in legislation and secondary regulation and flag the incentives, allowances and exemptions that apply to your company, together with an estimate of their impact. Tax in Türkiye is shaped by frequently amended instruments, including the Corporate Tax Law (Law 5520), the Income Tax Law (Law 193) and the VAT Law (Law 3065), alongside the investment-incentive reg…
The agreements between Türkiye and Germany, Austria, and Switzerland are intended to prevent the same income from being taxed in two countries at once. Which country holds the right to tax is determined according to the type of income and the provisions of the agreement. We ensure that these provisions are applied correctly in your cross-border transactions.
During the audit, it is critical that documents are prepared completely and consistently and that the process is conducted in accordance with proper procedure. A sound strategy at an early stage can narrow the scope of any potential disputes. From document preparation through to representation, we are by your side throughout the process.
Tax compliance is a continuous process focused on fulfilling obligations accurately and on time. Tax planning, by contrast, aims to establish the most appropriate structure within the framework of the legislation. We coordinate both dimensions in an integrated manner with accounting and legal processes.
Yes. Tax compliance can be carried out in an integrated manner with our accounting and payroll services within the scope of corporate secretarial work. This integration improves data consistency and streamlines filing processes. Single-point coordination delivers both compliance and predictability.
In cross-border transactions, transfer pricing, withholding tax, and the interpretation of treaty provisions are the principal risk areas. Incorrect application may give rise to double taxation or penal sanctions. By analysing these areas in advance, we build a predictable and defensible structure.
Get the right legal support for Tax Compliance.
Let us determine the solution best suited to your needs, together with our experience in Türkiye and the DACH region.