Turkish Social Insurance Law

Law No. 5510 brings everyone working in Turkey under a single system and settles three things for an employer: which category a person falls into, which notifications are due and when, and which premiums are payable on which base. An error in the first of those corrupts the other two.

This page covers the insurance categories, the employer’s notification duties and their deadlines, the premium rates and the earnings ceiling, what each branch of insurance provides, the rules for foreign employees, and the penalties.

Governing law
Law No. 5510
Employees under a contract
Category 4/a
Entry notification
Before work begins
Monthly return
26th of the following month
Employee premiums
15%
Employer premiums
22.75%
Earnings ceiling
9 times the minimum wage
Payment through a bank
From 5 employees
Law No. 506 is no longer in force

Social insurance is governed by Law No. 5510 on Social Insurance and Universal Health Insurance, adopted in 2006 and in force since 2008. It replaced the former Social Insurance Law No. 506 together with Laws No. 1479 and 5434.

Material still citing Law No. 506 is describing a framework that has not applied for more than eighteen years. Some transitional provisions refer back to the earlier laws, but those are exceptions and the general rule is Law No. 5510.

Insurance Categories

CategoryWho it coversWho pays
4/aThose employed under a service contract by one or more employersEmployer and employee together
4/bThe self-employed; company shareholders and tradespeopleThe insured person
4/cThose employed in public administration on established or contracted postsThe institution and the insured person
Universal health insuranceResidents of Turkey who fall into none of the above categoriesThe person themselves
A shareholder’s category is often assigned incorrectly

Shareholders of a limited liability company, and shareholders of a joint stock company who sit on the board, fall within category 4/b and pay their own premiums. A joint stock company shareholder who is not a board member is not insured on that basis.

The common error in practice is putting a shareholder on the company payroll under category 4/a. That reports both the category and the premiums incorrectly, and where it is identified, retrospective correction and late payment charges follow.

The Employer’s Notification Duties

  1. File the workplace declarationBefore employing the first insured person, a workplace declaration is filed with the unit for the location and a workplace registration number is issued. Branches and additional locations are notified separately.
  2. File the entry notification before work beginsThe entry notification must be filed before the employee actually starts work — not on the first day or afterwards. Different periods are prescribed for certain sectors and situations.
  3. File the monthly return on timeThe withholding and premium service return covers income tax withholding, stamp duty and social security in a single filing and is due by the 26th of the following month.
  4. Show missing days in the returnWhere days are under-declared because of sick leave, unpaid leave or part-time work, the reason is stated in the return. Supporting documents are not sent to the institution; they are kept at the workplace and produced on inspection.
  5. Pay wages through a bankAt workplaces with five or more employees, wages and similar payments must be made through a bank.
  6. File the exit notificationThe exit notification is filed within the prescribed period after insurance ends, and the exit code must reflect the actual reason for leaving.
Not “on the first day” but “before work begins”

The entry notification must be filed before work begins. An employee found working without one creates a problem well beyond the administrative fine: the start date then rests on assertion rather than record, and the way is open to a retrospective claim for service determination.

Choosing the exit code correctly matters equally. Using an employer-dismissal code on a mutual termination means the employer has declared its own dismissal on the official record, leaving its defence in a reinstatement claim without foundation.

Premium Rates and the Base

PartyItemRate
EmployeeSocial insurance14%
EmployeeUnemployment insurance1%
Employee total—15%
EmployerSocial insurance20.75%
EmployerUnemployment insurance2%
Employer totalBefore any reduction22.75%
Employer totalWhere the five point reduction applies17.75%

Premiums are calculated on earnings subject to premium. The floor is the gross minimum wage and the ceiling is nine times that amount. The conditions for the five point reduction include having no overdue premium debt; where a debt arises, the reduction does not apply for that period.

The ceiling multiple rose from 7.5 to 9 for 2026

The ceiling on earnings subject to premium was raised from 7.5 times the gross minimum wage to 9 times. The effect falls entirely on higher-paid staff: an employee whose salary sat above the old ceiling now attracts premiums on a materially larger base.

Because the employer cost rises although the salary has not changed, budgets built on the previous multiple understate the cost of senior employees.

Branches of Insurance

Short-term branches

Cover
Work accident, occupational disease, sickness and maternity
Provide
Temporary incapacity benefit, permanent incapacity income, nursing allowance
Premium condition for sickness
90 days in the last year
For work accidents
No premium day condition

Long-term branches

Cover
Invalidity, old age and death
Provide
Invalidity pension, old age pension, survivors’ pension and lump sum payment
Determined by
Length of insurance, premium days and age
Transitional rules
Different conditions may apply by first insurance date

A work accident is notified to the institution within three working days following the day it occurred. Where no notification is made, the costs incurred by the institution up to the date of notification may be recovered from the employer.

Incapacity Benefit

SituationWaiting periodRate
Illness, outpatientFirst two days unpaidTwo thirds of daily earnings
Illness, inpatientFirst two days unpaidOne half of daily earnings
Work accident and occupational diseaseNoneSame rates, from day one
MaternityNoneTwo thirds of daily earnings

Payment is made by the institution rather than the employer. The employer’s obligation is to notify that the employee did not work on the reported days and to show the missing days in the return.

See: sickness reports

Foreign Employees

  • Foreign nationals working under a service contract in Turkey are as a rule insured under category 4/a
  • Obtaining a work permit does not replace the insurance notification; they are separate obligations
  • Where a person comes on temporary assignment from a country with a bilateral social security agreement, a certificate permitting continued coverage there may be obtained
  • That certificate must be obtained before the assignment begins
  • Scope and periods differ by country; each agreement carries its own conditions
  • Without the certificate, a premium obligation arises in Turkey
  • Where salary is paid in foreign currency by an employer abroad, the income tax exemption does not affect insurance status
  • Insurance status and tax liability are assessed separately
Universal health insurance is a separate route for those not employed

Foreign nationals residing in Turkey who are not employed by an employer may be brought within universal health insurance where they meet the conditions. Application is made to the social security directorate for the place of residence, and the person must not be covered by another country’s social security system.

The premium is calculated as a percentage of the gross minimum wage and paid monthly. The rate and the application conditions change periodically and should be confirmed with the institution before applying. A separate rate and a separate application period apply to students.

Penalties

ObligationConsequence of breach
Workplace declarationAdministrative fine, varying with the size of the workplace
Entry notificationAdministrative fine for each insured person, increased where repeated
Monthly returnAdministrative fine and late payment charges
Premiums not paid on timeLate payment penalty and charges; entitlement to incentives and reductions is also lost
Wages not paid through a bankAdministrative fine per employee per month
Work accident not notifiedAdministrative fine and recovery from the employer of the costs incurred by the institution
Records not producedAdministrative fine; a further penalty where books and documents are treated as invalid

Common Mistakes

  • Proceeding on the basis of Law No. 506. The framework in force is Law No. 5510.
  • Filing the entry notification on the first day. It must be filed before work begins.
  • Declaring a shareholder under category 4/a. Limited company shareholders and board-member shareholders of joint stock companies fall under 4/b.
  • Calculating the ceiling on the old multiple. The upper limit rose from 7.5 to 9 times the minimum wage.
  • Applying the five point reduction while a debt is outstanding. An overdue premium debt removes the reduction for that period.
  • Sending supporting documents for missing days to the institution. The reason goes in the return and the documents stay at the workplace.
  • Selecting an exit code that does not reflect reality. The declared reason becomes evidence against the employer in any later dispute.
  • Not notifying a work accident within three working days. The costs incurred by the institution may be recovered from the employer.

Frequently Asked Questions

Which law governs social insurance in Turkey?
Law No. 5510 on Social Insurance and Universal Health Insurance, adopted in 2006 and in force since 2008. It replaced Laws No. 506, 1479 and 5434. Material still citing Law No. 506 is describing a framework that no longer applies.
When must the entry notification be filed?
Before the insured person actually starts work. Filing it on the first day or afterwards is not sufficient. Different periods are prescribed for certain sectors and situations, but the general rule is notification before work begins.
What are the premium rates?
From the employee, 14% social insurance plus 1% unemployment insurance, giving 15%; from the employer, 20.75% plus 2%, giving 22.75%. Employers meeting the conditions, including having no overdue premium debt, benefit from a five point reduction bringing their share to 17.75%.
What is the ceiling on earnings subject to premium?
Nine times the gross minimum wage. Because the multiple rose from 7.5 to 9, the cost of employees paid above the previous ceiling has increased even where their salary is unchanged.
Under which category are company shareholders insured?
Shareholders of a limited liability company, and shareholders of a joint stock company who sit on the board, fall within category 4/b and pay their own premiums. A joint stock company shareholder who is not a board member is not insured on that basis. Putting a shareholder on the company payroll under 4/a is a common error.
How does insurance work for foreign employees?
Foreign nationals working under a service contract are as a rule insured under category 4/a. Obtaining a work permit does not replace the insurance notification. Where a person comes on temporary assignment from a country with a bilateral agreement, the certificate permitting continued coverage must be obtained before the assignment begins.
When must a work accident be notified?
Within three working days following the day it occurred. Failure to notify produces an administrative fine, and the costs incurred by the institution up to the date of notification may be recovered from the employer.
Who pays for sick days?
Temporary incapacity benefit is paid by the institution. For illness, payment begins on the third day and at least ninety days of premiums in the preceding year are required; for work accidents and occupational diseases there is no waiting period and no premium day condition. The employer’s obligation is to notify, not to pay.

As the Ozbek CPA team, we handle the employer side of social security obligations in Turkey — workplace and insured person notifications, monthly return filings, structuring the premium base correctly, monitoring the conditions for incentives and reductions, missing day and sick leave notifications, and assessing the scope of bilateral agreements for foreign employees. See also our pages on payroll services, Turkish labour law, sickness reports and work permits. Contact us.

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