Distinction Between Temporary and Permanent Work Incapacity in Compensation for Physical Injury: Theoretical Foundations, Calculation Techniques and Judicial Application

DISTINCTION BETWEEN TEMPORARY AND PERMANENT INCAPACITY FOR WORK IN COMPENSATION FOR BODILY INJURIES: THEORETICAL FOUNDATIONS, CALCULATION TECHNIQUES, AND JUDICIAL APPLICATIONS

I. INTRODUCTION

In Turkish Liability Law, violation of bodily integrity (physical injury) is the most frequently encountered and most technically detailed type of damage in cases of tort or breach of contract. Article 54 of the Turkish Code of Obligations No. 6098 (TCO) has classified bodily damages as: medical expenses, loss of earnings, losses arising from reduction or loss of working capacity, and losses arising from impairment of economic future.

Within this classification, the greatest complexity for practitioners (judges, lawyers, and expert witnesses) is the determination of the temporal and qualitative boundaries of the concepts of "Temporary Incapacity for Work" and "Permanent Incapacity for Work." Failure to correctly distinguish these two concepts leads to duplicate payments (unjust enrichment), deficient compensation calculations, or errors in recourse proceedings.

This article will address these concepts with their doctrinal foundations, examine calculation methods in light of the Court of Cassation's established case law, and offer solutions to frequently made errors in practice.

II. CONCEPTUAL ANALYSIS AND LEGAL NATURE

A. Temporary Incapacity for Work (Temporary Disability)

1. Definition and Scope: Temporary incapacity for work refers to the period from the date of the incident during which the person who has suffered bodily injury continues to undergo medical treatment and full recovery has not yet been achieved. During this period, the person is unable to pursue their professional activity due to the bodily injury and suffers an income loss as a result. In social security law terminology, this period is the period during which the insured is on "medical leave."

2. Legal Nature: "Lost Profit" (Lucrum Cessans): Temporary incapacity for work compensation is, by its nature, a pure "loss of earnings" compensation. It is the situation where an increase that was likely to occur in the assets of the injured party does not materialize due to the tort. What is compensated here is not "working capacity" but "income lost due to inability to work."

3. Court of Cassation Practice: The Court of Cassation takes the concept of "medical recovery" (recovery period) as the basis in determining the period of temporary incapacity for work. This period is determined by the 3rd Specialization Board of the Forensic Medicine Institute or by the forensic medicine departments of universities.

"It is a matter of compensating for the income that the insured was deprived of during the period when they could not work during the temporary incapacity period... This damage is calculated by accepting that the insured suffered 100% loss of working capacity during the period they were on medical leave, determining the wage amount they should have received from the employer during this period..." (Closed) 21st Civil Chamber 2015/5928 Case, 2015/20734 Decision.

B. Permanent Incapacity for Work (Permanent Disability)

1. Definition and Scope: Permanent incapacity for work is the condition that, despite the completion of medical treatment and the end of the recovery process, has permanently reduced or eliminated the person's earning capacity in their profession due to changes in their physical capacity (anatomical integrity) or psychological structure. This period begins from the moment the temporary incapacity period ends and continues for the person's lifetime (remaining life expectancy).

2. Legal Nature: "Loss of Capacity Theory" and "Effort Compensation": There are two main views in doctrine on the legal nature of permanent incapacity for work compensation: the "Difference Theory" and the "Loss of Capacity Theory." Turkish Court of Cassation practice has consistently adopted the Loss of Capacity Theory.

According to this theory, a person whose bodily integrity has been violated is entitled to compensation even if they continue to perform the same work and there is no reduction in their income (even if their income increases). Because the person who remains disabled must exert more "effort" (strength/energy) than their healthy peers to perform the same work. This extra effort exerted has an economic value and must be compensated. In practice, this compensation is referred to as "Effort Compensation."

"Although a person who has entered a state of permanent partial incapacity for work can continue to work, it is accepted that they have the right to claim compensation (in proportion to their disability) even if there is no reduction in their earnings, since they will spend more effort and energy compared to their peers and those in the same situation (in proportion to their disability)." Republic of Turkey İzmir 7th Commercial Court of First Instance.

III. BOUNDARY BETWEEN TEMPORARY AND PERMANENT INCAPACITY FOR WORK AND TRANSITION PROBLEMS

The most critical stage of compensation calculation is correctly drawing the boundary between these two periods. A person cannot be both "in the process of recovery" and "in the process of permanent disability" at the same time. This situation is contrary to the rules of logic and the general principles of law.

A. Recovery Date Criterion

The end of temporary incapacity is the beginning of permanent incapacity. This date is determined by medical documents (medical leave reports, epicrises). If there is no definitive date in the medical documents, the "customary recovery period" should be requested from the Forensic Medicine Institute. For example, in a fracture case, the basis should not be the date the cast was removed, but the date on which bone union was completed and physical therapy ended.

B. Prohibition of Periodic Overlap and Risk of Duplicate Payment

The most frequently made error in practice is calculating both temporary incapacity compensation and permanent incapacity compensation for the period of temporary incapacity.

Example Case: A worker who suffered a work accident remained on medical leave for 6 months (temporary incapacity) and subsequently a 20% disability (permanent incapacity) was determined.

• Erroneous Application: Starting permanent incapacity compensation from the date of the accident. In this case, both full salary loss and 20% disability compensation would be calculated for the first 6 months, which constitutes duplicate payment.
• Correct Application: Only temporary incapacity (full salary loss) should be calculated for the first 6 months; permanent incapacity compensation should be started from the end of the 6th month.

The Court of Cassation 21st Civil Chamber has formulated this principle as follows:

"Permanent incapacity compensation is determined by calculating from the end of the temporary incapacity period." Republic of Turkey Ankara Regional Court of Justice 26th Civil Chamber.

IV. PARAMETERS AFFECTING COMPENSATION CALCULATION AND CALCULATION TECHNIQUES

A. Earnings Element: Determination of Actual Wage

The basic parameter in both types of compensation is "actual earnings." Compensation law is shaped not by "minimum wage" but by the person's "actual damage."

1. Burden of Proof: The plaintiff is obligated to prove their actual wage (CCP Article 190). However, the Court of Cassation requires research on comparable wages from relevant professional chambers (Provincial Directorate of Environment and Urbanization, TURKSTAT, Professional Chambers) in cases where it is contrary to the ordinary course of life for the worker to work at minimum wage, taking into account the worker's seniority, the nature of the work performed, and professional experience.

2. Periodic Differences:

• In Temporary Incapacity: The net earnings at the date of the incident are taken as the basis.
• In Permanent Incapacity: For periods after the recovery date, calculations are made using actual wages for known periods and, for unknown (future) periods, by the method of increasing the last known wage by 10% per year and then discounting by 10% (progressive annuity) in accordance with the Court of Cassation's established practice.

B. Disability Rate and Age Factor

• In Temporary Incapacity: The disability rate is not taken into account. The person is accepted as 100% incapacitated for work as long as they are on medical leave. Because during this period they are prohibited from working and are completely deprived of income.
• In Permanent Incapacity: The "Rate of Loss of Earning Capacity in the Profession" (Disability Rate) determined by the Forensic Medicine Institute or SSI Health Board is the basic multiplier of the calculation.
• Remaining Life Expectancy: Permanent incapacity compensation is calculated over the person's remaining life expectancy. While the Court of Cassation used the PMF-1931 table for many years, it has recently (post-2020) made it mandatory to use the TRH-2010 (Turkey Life Table) life table.

C. Deduction of Social Security Payments (Recourse and Deduction)

Pursuant to TCO Article 55 and Law No. 5510 Article 21, in accordance with the "Prohibition of Enrichment" principle, payments made by the SSI that are subject to recourse are deducted from compensation.

1. Temporary Incapacity Benefit: This amount paid by the SSI is deducted from the calculated temporary incapacity compensation.

Important Note: If the employer has paid the worker's wage in full during the period on medical leave and the SSI benefit has been credited to the employer (or if the worker has returned the benefit received to the employer), the worker's temporary incapacity damage is deemed not to have arisen. In this case, the compensation claim is rejected.

2. Permanent Incapacity Income (PCI): The "First Lump Sum Capital Value" (PCI) of the income connected by the SSI is deducted from the permanent incapacity compensation to the extent corresponding to the proportion of fault.

Recourse Eligibility Condition: The PCI to be deducted must be subject to recourse in proportion to the fault of the employer or third party. Portions that cannot be reclaimed (for example, portions assumed by the SSI pursuant to the principle of inevitability) cannot be deducted from compensation (TCO Article 55).

V. FREQUENTLY ENCOUNTERED PROBLEMS IN PRACTICE AND PROPOSED SOLUTIONS

A. "Developing Condition" (Increase in Disability)

The impairment resulting from the accident may increase over time or new complications may arise. In this case, a "developing condition" is at issue.

• Legal Consequence: Where a developing condition exists, statute of limitations periods begin to run anew. Even if there is a previously finalized judgment, an "Additional Action" may be filed for the increased disability rate.
• Determination: The existence of a developing condition must be proven by medical reports. The Court of Cassation accepts that the statute of limitations will begin to run from the date the developing condition ceases.

B. Calculation for After Age 60 (Passive Period)

In permanent incapacity compensation, it is debated whether compensation should also be calculated for the period after age 60, at which the person is assumed to retire (passive period).

• Court of Cassation View: The Court of Cassation accepts that even when retired, the person will exert more effort due to their disability while maintaining daily life (dressing, eating, walking, etc.). For this reason, effort compensation must also be calculated for the passive period based on minimum wage (excluding minimum living allowance).

C. Those Who Receive Wages in Foreign Currency

If the injured party's wage is denominated in foreign currency, how will the compensation calculation be made?

• Practice: The Court of Cassation accepts that for those who receive wages in foreign currency, compensation may also be calculated in foreign currency or the Turkish Lira equivalent at the exchange rate on the actual payment date may be claimed. However, when making the calculation, discount rates must be differentiated by taking into account the interest rates of the foreign currency and its situation against inflation.

VI. CONCLUSION

The distinction between "Temporary Incapacity for Work" and "Permanent Incapacity for Work" in compensation for bodily injuries is of vital importance for a fair trial and a correct compensation calculation. These two concepts are two separate damage items that follow each other but have completely different legal natures, calculation parameters, and purposes.

Practitioners (Lawyers, Judges, Expert Witnesses) should follow this checklist:

1. Recovery Date: Must be definitively determined by medical documents and accepted as the boundary between the two periods.
2. Periodic Distinction: Full earnings loss for the temporary period, and loss of capacity according to the disability rate for the permanent period, must be calculated.
3. Actual Wage: Actual damage must be found through comparable wage research.
4. Deduction: SSI payments (Benefit and PCI) must be deducted from the relevant compensation item, within recourse eligibility limits.
5. Life Table: The current TRH-2010 table must be used.

A calculation made in light of these principles will comply both with the TCO's "full compensation" principle and with the Court of Cassation's established case law, thereby preventing prolongation of the litigation process and loss of rights.