
Calculation and Proof of Overtime Pay in Labor Court: Summary and Key Points
Claims of overtime are among the frequently encountered disputes in daily employment relationships. Justifiably, workers resort to the court to collect unpaid overtime wages; employers, on the other hand, cite lack of evidence. In this article, I explain how overtime wages are calculated, how to prove overtime wages in court, particularly with witness testimony, and provide practical information regarding the process in Izmir.
Why is this topic important?
- Overtime wages directly affect the worker's income; insufficient or non-payment leads to significant financial loss.
- If employers do not provide payroll and entry-exit records, cases result in reliance on witness testimony, correspondence, or expert examination.
- Accurate calculation and strong presentation of evidence determine the outcome of the case; thus, working with an expert labor lawyer in Izmir is often recommended.
Legal Framework – Key Provisions
The main regulation regarding overtime is found in the Labor Law No. 4857. The salient articles are:
- Article 41: Work exceeding the weekly working hours is considered as overtime; the hourly rate for overtime pay is 50% more than the regular hourly wage (1.5 times). In certain cases, provisions for “working overtime” apply with a 25% increase (Art. 41/2-3).
- Article 41/5: The worker may prefer to use free time instead of payment (1 hour 30 minutes for each hour of overtime; 1 hour 15 minutes for extensions).
- Article 41/7: The worker's consent is required for overtime; written approval is obligatory (exceptions are stated in Articles 42 and 43).
- Annual Limit: A maximum of 270 hours of overtime can be worked per year; exceeding this limit is evaluated separately.
- Statute of Limitations: The general statute of limitations for claims for overtime pay is 5 years.
Calculation of Overtime Pay – Practical Formula and Example
The most important point to heed in calculations is from which amount (gross or net) the hourly wage will be taken. In judicial practice, gross wage is generally considered; unless otherwise specified in the employment contract, the gross amount is preferred in wage calculations.
Simple formula:
- Hourly Wage = Monthly Gross Wage ÷ (Weekly Working Hours × 4.333)
- Overtime Hourly Wage = Hourly Wage × 1.5 (50% increase as per Article 41)
- Total Overtime Pay = Overtime Hourly Wage × Number of Overtime Hours Worked
Example (rounded for calculation convenience):
- Monthly gross wage: 10,000 TL
- Weekly working hours: 45 hours
- Hourly wage = 10,000 ÷ (45 × 4,333) ≈ 51.28 TL
- Overtime hourly wage = 51.28 × 1.5 ≈ 76.92 TL
- If there are up to 20 unpaid overtime hours in the month = 76.92 × 20 ≈ 1,538.40 TL
Note: Calculations may vary based on the form of the employment contract, whether bonuses and incentives are included in the wages; therefore, expert examination is a frequently used method in court.
Evidence: Is it Possible to Prove with Witnesses? How to Prepare?
In situations where the employer cannot produce payroll, entry-exit records, or written orders, witness evidence is frequently accepted by the court. Supreme Court precedents emphasize that the testimony is supportive of the worker's claims, especially if there are multiple and consistent witness statements (e.g., HGK case law shows this).
Considerations for Proving with Witnesses
- It is important that witnesses have direct knowledge of the dispute (having worked in the same workplace, having been present in the same shift).
- Witness statements should be detailed according to dates, start and end times of shifts, tasks performed, and the repetition of events.
- The neutrality of the witnesses and any possible conflict of interest is evaluated by the court; statements from former employees or those with conflicting interests need to be substantiated.
- Collecting written evidence that supports the witness statement (emails, work orders, duty rosters, messages, security/card access records, and any video footage if available) increases the likelihood of case success.
- An expert report confirms the accuracy of the wage calculation; the court appoints an expert for wage calculations when necessary.
Court Process: Step by Step (Application in İzmir is the Same)
- Application for Mediation: Under Law No. 7036, application for mediation is mandatory in labor disputes. The process generally concludes quickly, and if no agreement is reached, a “report of non-agreement” is prepared.
- Filing the Lawsuit: A lawsuit is filed with the competent Labor Court, along with the report of non-agreement (the Labor Courts in your district in Izmir are competent).
- Presentation of Evidence: Payroll, entry-exit records, witness lists, and any written evidence are submitted with the petition.
- Hearings: Witnesses are heard, and expert examination is conducted. Appeals and review options against the first-instance decision are available.
- Finalization and Enforcement: When the decision becomes final, collection of the receivable is ensured through enforcement proceedings.
Cost, Fees, and Time Expectations (Estimates)
Litigation expenses and attorney fees vary depending on the scope of the case. The figures below are intended to provide a general framework; current legislation and court procedures should be checked for exact figures.
- Filing Fee: Varies according to the amount claimed; for current rates, the Fees Law should be reviewed.
- Mediation: Generally free; in case of disputes, the mediator's fee application is minimal.
- Attorney Fee: Usually agreed as a certain percentage of the claim or a fixed fee; varies in Izmir based on the size of the case.
- Expert and Other Expenses: Fees for experts and costs for witnesses and inspections may apply; these are determined by the court and generally allocated to the losing party.
- Duration: The average duration for first-instance cases is 1–2 years; appeal and review processes take additional time. The mediation period is generally short (within the framework of the regulation stipulated in the law).
Court Practice and Precedents
- Supreme Court decisions accept that witness testimony can carry evidentiary value, particularly in cases where written documents like payroll are unavailable (relevant Supreme Court precedents exist).
- It has been clarified through various decisions that daily working limits (e.g., the 7.5-hour rule for night work, 11 hours per day) must be observed.
- Practices in labor courts in Izmir generally follow established precedents; hence, case preparation should be done meticulously.
How Do We Assist as Korkmaz Law Office?
- We examine the legal basis and calculation of your overtime claim and enter the pre-court mediation phase with a carefully prepared case file.
- We provide expertise in identifying witnesses and preparing statements, collecting written supporting evidence, and guiding the expert report process.
- Our team, proficient in the practices of Izmir Labor Courts, develops defense and claim strategies compliant with local procedures and precedents. Especially in cases requiring proof of “overtime wages with witnesses,” we ensure that witnesses are presented strongly and in an acceptable manner by the court.
- Throughout the legal process, we transparently assess costs, duration, and potential risks and inform our clients accordingly.
Conclusion
Claims for overtime pay can be largely protected through accurate calculation and strong presentation of evidence. If there are no payroll and electronic records, witness testimony is an important and effective piece of evidence; however, its success depends on the quality of the witnesses, consistency of the statements, and supporting evidence. The process should be planned with the support of a labor lawyer in Izmir, the mediation stage should be effectively utilized, and the lawsuit petition must be prepared in detail.
Note: The calculation examples and cost estimates provided in this text are for informational purposes only. Official legislation should be consulted for exact figures and current fee rates.
Disclaimer
This article is for general informational purposes and does not substitute for legal consultation. It is important to meet with Korkmaz Law Office for case-specific interpretations, strategies, and calculations. We recommend reviewing official sources for current legal texts and fee rates.

Author
Av. Hilal Korkmaz
Avukat | İzmir Barosu
Av. Hilal Korkmaz is a graduate of the Faculty of Law at İzmir University of Economics. She has been practicing law as a registered attorney with the İzmir Bar Association since 2021. She specializes ...
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