Alanya Attorney and Legal Consultancy Office

SGK Service Determination Lawsuit in Turkey: Your Guide to Claiming Uninsured Work

September 10, 2026 Labor and Social Security Law 10 mins’ read

Navigating Your Rights: The SGK Service Determination Lawsuit for Uninsured Employment

In the Turkish legal landscape, the rights of employees are robustly protected, yet the issue of uninsured or unregistered employment remains a significant challenge for many. Working without being registered with the Social Security Institution (SGK) deprives individuals of fundamental rights, including healthcare, pension benefits, and job security. At our Alanya-based law firm, we frequently encounter clients who have dedicated years of their lives to a company, only to discover their work was never officially recorded. The primary legal remedy for this injustice is the SGK Service Determination Lawsuit (Hizmet Tespit Davası). This comprehensive guide, prepared by our team of experienced labor law attorneys, will walk you through the complexities of this crucial lawsuit, empowering you to reclaim your rights.

Understanding Unregistered Employment and its Consequences in Turkey

Before delving into the specifics of the lawsuit, it’s essential to understand the legal framework. Turkish Labor Law and Social Security Law are unequivocal: every employer is legally obligated to register their employees with the SGK from the very first day of their employment. This is not optional; it is a fundamental requirement of conducting business in Turkey. Failure to do so constitutes a serious legal violation.

What Qualifies as Uninsured Work?

Unregistered employment isn’t always as simple as not being registered at all. It can manifest in several ways, each equally damaging to the employee:

  • Complete Non-Registration: The most straightforward scenario, where the employer never informs the SGK of the employment relationship. The employee is effectively invisible to the social security system.
  • Late Registration: The employer delays registering the employee for weeks, months, or even years after their start date, creating a gap in their social security record.
  • Under-reporting of Wages: A very common practice where the employer registers the employee with the SGK at the minimum wage but pays a higher salary in cash (‘under the table’). This significantly reduces future pension benefits and the amount received for severance and notice pay.
  • Incorrect Job Code (Meslek Kodu): Registering an employee under a lower-skilled or lower-paid job code to pay lower premiums. This can also affect pension calculations and access to certain professional benefits.

The Severe Impact on Employee Rights

Working uninsured has profound and lasting negative consequences. An unregistered employee is denied access to a wide array of social safety nets and legal protections. These include the inability to benefit from public healthcare services funded by the SGK for themselves and their dependents, the loss of accumulated days towards retirement, meaning their years of hard work will not count towards their pension, and ineligibility for unemployment benefits if the employment relationship ends. Furthermore, it complicates claims for work-related accidents and occupational diseases, and significantly undermines their ability to claim rightful severance and notice pay upon termination, as these are calculated based on the official SGK record.

The SGK Service Determination Lawsuit (Hizmet Tespit Davası): A Detailed Examination

The Service Determination Lawsuit is a powerful legal tool designed to correct the historical record. Its primary objective is to obtain a court order that retroactively establishes the existence of an employment relationship for a specific period, compelling the SGK to register those service days and the correct salary for the employee.

The Purpose and Parties Involved

The core purpose of this lawsuit is to make the unseen seen. The court’s decision, once finalized, officially recognizes the employee’s uninsured working days. This forces the employer to pay all the backdated premiums, along with significant penalties and interest. The lawsuit is filed by the employee (or their legal heirs if the employee is deceased) against the employer. Crucially, the Social Security Institution (SGK) is also included as a co-defendant. This is because the outcome of the case directly affects the SGK’s records and financial obligations, making its participation legally mandatory.

The Critical Statute of Limitations (Hak Düşürücü Süre)

One of the most critical aspects of this lawsuit is the strict time limit for filing. The law stipulates a 5-year statute of limitations. This period begins from the end of the calendar year in which the work was performed. For example, for work performed at any time during 2021, the right to file a lawsuit expires at the end of 2026 (31.12.2026). It is imperative to act within this timeframe, as failing to do so results in the permanent loss of the right to claim those service days. However, there are important exceptions where this 5-year rule does not apply, such as when the SGK has already been notified of the employment through official documents like payroll slips or an institutional declaration, but the premiums were not paid.

The Legal Process: A Step-by-Step Guide to Filing Your Claim

Initiating and successfully concluding a service determination lawsuit requires meticulous preparation and a deep understanding of legal procedure. It is not merely about stating a claim; it is about proving it with compelling evidence. Our team guides clients through every phase of this intricate process.

Step 1: Pre-Lawsuit Evidence Gathering

Before a single document is filed with the court, the most important work begins: collecting evidence. The burden of proof lies with the employee to demonstrate the existence, duration, and financial terms of the employment relationship. The stronger the evidence, the higher the chance of success. We work with our clients to compile a comprehensive file that may include a wide range of documents and information.

Step 2: The Power of Evidence (Deliller)

Since the very nature of the problem is the lack of official records, the court relies on a variety of direct and circumstantial evidence to establish the truth. Witness testimony is often paramount.

  • Witness Testimony (Tanık Beyanları): This is frequently the cornerstone of a service determination case. Witnesses can be former or current colleagues who worked during the same period, supervisors, or even clients and suppliers who can attest to the employee’s presence and role at the workplace. The credibility and consistency of witness statements are heavily scrutinized by the court.
  • Written and Digital Records: Any piece of documentation can be vital. This includes emails exchanged with the employer, text messages or WhatsApp conversations discussing work, salary payment records (even for cash payments), internal company memos, or employment offer letters.
  • Bank Records: If any part of the salary was paid via bank transfer, these records are powerful proof. Consistent monthly payments from the employer’s account to the employee’s account serve as strong evidence of an employment relationship and the actual salary.
  • Physical Evidence: Items like company ID cards, uniforms, business cards, or photographs taken at the workplace can help substantiate the claim.
  • Official SGK Records: In cases of partial registration, existing SGK entry and exit declarations (İşe Giriş ve İşten Ayrılış Bildirgeleri) can be used to prove the start or end dates, which can then be supported by witnesses to fill in the unregistered gaps.

Step 3: Filing the Lawsuit and Court Proceedings

Once the evidence is gathered, a formal petition is drafted and filed with the competent Labor Court (İş Mahkemesi). The petition outlines the employment period being claimed, the actual salary received, and the evidence that will be presented. The court then serves the petition to the employer and the SGK, who file their responses. The trial phase involves hearings where witnesses are questioned and cross-examined, documents are submitted and reviewed, and legal arguments are made by the attorneys. The judge may also request an on-site inspection of the workplace or appoint experts to examine financial records.

The Positive Outcomes of a Successful Lawsuit

Winning a service determination lawsuit is a transformative victory for an employee. The court’s decision retroactively grants the social security rights that were unjustly denied, creating a ripple effect of positive consequences.

Benefits for the Employee

The primary benefit is the retroactive registration of service days. These days are added to the employee’s official SGK record, directly contributing to their eligibility for retirement and increasing the total amount of their future pension. With the official registration, the employee and their dependents gain immediate access to public healthcare services. Furthermore, a successful verdict establishing the true, higher salary provides a legal foundation to file subsequent lawsuits for other unpaid rights, such as shortfalls in severance pay, notice pay, and overtime wages, all of which must be recalculated based on the real salary determined by the court.

Consequences for the Employer

For the employer, the financial and administrative consequences are severe. They will be ordered to pay all overdue SGK premiums for the entire determined period, covering both the employee’s and the employer’s shares. These premiums are subject to substantial late payment penalties and accrued interest, often multiplying the original amount owed. In addition to this, the SGK will levy significant administrative fines on the employer for each month of unregistered employment. This legal outcome serves as a powerful deterrent against the practice of informal labor.

Tackling Under-Reported Wages: A Common Related Challenge

A closely related issue is the under-reporting of wages. Many employers register employees at the official minimum wage to minimize their SGK premium costs, while paying the remainder of the actual salary in cash. This practice is just as illegal and detrimental as complete non-registration. A service determination lawsuit can also be used to address this. The goal is not only to prove the *period* of employment but also the *actual wage* earned.

Proving the real wage involves a similar evidence-gathering process. Bank records showing consistent payments above the minimum wage, witness testimony from colleagues about salary levels, and market research on comparable salaries for the same position in the same industry (emsal ücret araştırması) are all crucial tools. A court decision that establishes the real wage forces the employer to pay the premium difference with penalties and dramatically increases the employee’s entitlement to severance pay and other compensations.

Why You Need an Experienced Labor Lawyer in Alanya

The path to justice through an SGK Service Determination Lawsuit is complex and fraught with procedural challenges. The strict statute of limitations, the high burden of proof, and the strategic presentation of evidence and witnesses demand profound legal expertise. Attempting to navigate this process alone can lead to critical errors, missed deadlines, or a poorly presented case, resulting in the permanent loss of your rights.

As a leading law firm in Alanya, Antalya, specializing in Turkish Labor Law, we possess the intricate knowledge and litigation experience necessary to build a compelling case on your behalf. We understand the nuances of how local courts evaluate evidence, we are skilled in preparing witnesses for testimony, and we meticulously manage every legal deadline. Our team is committed to ensuring that your years of hard work are officially recognized and that you receive every single right you are entitled to under the law. If you have worked uninsured or your salary has been under-reported, do not let your rights disappear. Contact us for a confidential consultation to explore your legal options.

Frequently Asked Questions

It is a legal action filed by an employee against their employer to retroactively prove and register periods of uninsured work with the Social Security Institution (SGK), thereby securing pension and healthcare rights.
There is a strict 5-year statute of limitations, which starts from the end of the calendar year in which the work was performed. It is crucial to act within this period to avoid losing your right to claim.
Witness testimony from colleagues is often the most critical evidence. Additionally, bank statements showing salary payments, emails, text messages, and company documents are all vital for building a strong case.
The court orders your uninsured days to be registered with the SGK, and your employer must pay all backdated premiums with heavy penalties. This makes you eligible for social security benefits like pension and healthcare for that period.
Yes, you can. While more challenging, a case can be successfully built using credible witness testimony from co-workers, circumstantial evidence like photos at work, and internal communications to prove the employment relationship.
Absolutely. The lawsuit can be used not only to prove service days but also to establish your real, higher salary. A successful outcome will correct your SGK record and increase your entitlement to severance and notice pay.
Share this article:

Seek Legal Advice

Please consult our specialist solicitors regarding the subject of this article or any other legal issue you may have.

Your personal data is kept confidential in accordance with the Personal Data Protection Act.

Alanya Attorney and Law Office
Alanya Attorney and Law Office Online
×
Hello,
How can we help you?