SGK APHB insurance type refers to the monthly premium and service declaration that employers submit to the Social Security Institution (SGK) on behalf of their employees. APHB stands for “Aylık Prim ve Hizmet Belgesi” (Monthly Premium and Service Statement). This document is critical to ensure employees’ social security rights are processed correctly. The declared insurance type indicates under which coverage the employee is insured.
The code “506 APHB” is one of the insurance codes that can appear on this declaration. This code denotes that the employee was reported under Law No. 506 on Social Insurances. It was commonly used in the older system and today typically corresponds to individuals who are covered under the 4A category. Below we explain what SGK insurance types mean, the details of the 506 APHB code, and answers to frequently asked questions related to it.
What is APHB? What Information Does It Contain?
The Monthly Premium and Service Statement (APHB) is the official document employers submit to SGK every month. The form records the employee’s working days for that month, the earnings subject to premiums, and the insurance type. It also allows verification of whether the employee’s contributions have been paid regularly.
Key information included on the APHB:
- Employee name and Turkish ID number
- Insurance type (for example: 506, 5510, etc.)
- Number of working days
- Amount of earnings subject to premiums
- If there is a missing-days notification, the reason for it
- Employer information and activity code
What Does SGK Insurance Type Mean?
The SGK insurance type indicates the employee’s legal status for social security purposes. The code appears on APHB forms and in the e-Government system. Each insurance type carries different rights and obligations.
Most commonly used SGK insurance types:
- 506: 4A insured (formerly under SSK)
- 5510: General SGK regulation introduced by the new law
- 2925: Agricultural workers
- 506-5434: Voluntary participants and those under the pension fund
- 4B (Bağ-Kur): Self-employed
- 4C: Public sector employees
Note: Although these are system codes, they affect the determination of an individual’s social rights.
What Does 506 APHB Mean?
506 APHB indicates that a worker was reported to SGK under the Social Insurances Law No. 506. This code belonged to the system used before the Law No. 5510 came into force. Some workplaces may still show this code for older service periods or historical records on e-Government.
Characteristics of 506 APHB:
- Represents employees formerly covered by SSK (now 4A).
- Can apply across both public institutions and the private sector.
- Seeing this code on a service record indicates the person was insured during that period.
- 506 appears in the insurance type row within the APHB.
List of SGK Insurance Types and Codes
Every worker is identified in the SGK system by an insurance type code. These codes define the employment status of the person.
| Code | Description |
|---|---|
| 1 – 506 | Employee under 4A (former SSK) |
| 2 – 1479 | Tradesperson Bağ-Kur |
| 3 – 5434 | Pension fund (civil servant) |
| 4 – 2925 | Agricultural workers |
| 5 – 5510 | General insurance (system after 2008) |
| 6 – 4B | Self-employed (tradesperson, farmer) |
| 7 – 4C | Public official, state employee |
Where to View SGK APHB Documents on e-Government?
Citizens can view all historical SGK service records and APHB details through the e-Government portal. These documents include job start and end dates and the declared insurance types.
Step-by-step to view APHB documents:
- Log in to the official e-Government portal.
- Type “SGK Registration and Service Statement” into the search bar.
- Enter the “4A Service Statement” section.
- The page shows workplaces, monthly premium days, and insurance types (506, 5510, etc.).
- You can download or print the information as a PDF.
What Is the Difference Between 506 and 5510?
Law No. 506 is the former Social Insurances Law. The Law No. 5510, effective from 2008, reorganized the social security system and consolidated the different schemes under a single framework.
Main differences:
- 506: Covered only SSK workers under the old system.
- 5510: Covers 4A, 4B, and 4C insured groups under the new system.
- Services coded as 506 generally belong to periods before 2008.
- The 5510 code applies to employees registered after the reform.
- Both codes may appear separately in e-Government for different time periods.
Note: 506 APHB is useful for understanding past service records and ensuring premium days are fully reflected.
What Are Employers’ SGK Reporting Obligations?
Employers are responsible for preparing a Monthly Premium and Service Statement (APHB) for each insured employee. The declaration must include the correct insurance type, number of days, earnings, and other required details.
Obligations related to SGK reporting:
- Working days for each month (from the 1st to the 30th) must be reported to SGK by the 23rd of the following month.
- The correct insurance type code must be selected (e.g., 506 or 5510).
- Missing-days notifications must include an explanation of the reason.
- Incorrect declarations can result in administrative fines.
- SGK inspections may review documents retroactively.
Warning: An employee who is not reported is considered uninsured by SGK. This can cause significant loss of rights for both the employer and the employee.
Frequently Asked Questions (FAQ)
What is 506 APHB, and is it still used?
Yes — it appears in historical records. Although the 5510 system is currently in force, past services may still be listed under the 506 code.
Why does my insurance type show as 506?
If you have work periods before 2008, those periods may be recorded as “506 APHB.”
If the insurance type does not appear on my e-Government SGK statement, what should I do?
Check your service statement in detail. If the information is missing, you can contact your provincial SGK office to verify and correct the records.
What happens if the employer reports the wrong insurance type?
If an error is detected, SGK will request a correction. Administrative penalties may also be applied.