What Is ISG-KATİP? A User Guide for Employers

What is ISG-KATİP, and what does it do for the employer?

The short answer to the question what is ISG-KATİP is this: it is the electronic system in which the Ministry of Labour and Social Security records occupational health and safety services, and it is used at isgkatip.csgb.gov.tr. When an OHS specialist or workplace physician is appointed to your workplace, when you sign a contract with an OSGB (joint health and safety unit) or when you take on the service yourself, the legal counterpart of this is the approved record in this system.

Art. 14 of the Regulation on OHS Services describes the employer-facing side of the system as follows:

• A contract in line with the sample on ISG-KATİP is drawn up between the OSGB and the employer, and both parties approve it in the system within 5 days at the latest.
• If the specialist, physician or DSP is appointed from among the workplace's own employees, the appointment document is also approved in the same way within 5 days.
• If the employer takes on the service themselves, the declaration is drawn up and approved within 5 days at the latest.
• Termination of the contract is notified to the system within 5 working days; departing staff are replaced within 30 days.

In addition, the system also contains contracts with persons who will carry out periodic inspections of work equipment (the EKİPNET module) and laboratories' notifications of workplace exposure measurements. In other words, ISG-KATİP is like the "official register" of your workplace's OHS services.

ISG-KATİP login: e-Devlet and two-factor verification

The ISG-KATİP e-Devlet login is described in the same way in the system guides published by the Ministry in 2025:

1. Go to isgkatip.csgb.gov.tr in your browser.
2. Click the "E-Devlet Login" button on the page; you are redirected to the e-Devlet gateway (the government's online services portal).
3. Log in with your e-Devlet account. To log in to ISG-KATİP, two-factor verification must be enabled on your e-Devlet account. If it is not enabled, first turn this feature on in your e-Devlet settings.
4. After logging in, the system takes you to your personal (individual) screen.

ISG-KATİP works on a personal basis through e-Devlet. So do not share your password with your OSGB, your accountant or an employee; a shared password makes it unclear who actually gave the approval.

Individual and corporate screens: how does your authority appear?

There are two separate working areas in ISG-KATİP. At the top of the page there are "INDIVIDUAL" and "CORPORATE" tabs.

The individual screen is your personal card. According to the guides, two menus stand out here:

• PERSONAL CARD INFORMATION > COMPETENCE INFORMATION: The competences the system has assigned to you are shown. For example, for an employer or employer's representative who has completed the OHS training for employers, the competence needed to provide the service themselves is assigned in this area.
• PERSONAL CARD INFORMATION > SGK AUTHORITY INFORMATION: Shows in which workplaces you are authorised according to SGK records, for example whether you appear as an "e-declaration officer".

The corporate screen is your workplace's card. When you click the "CORPORATE" tab, the relevant workplace or role is selected from the "PLEASE SELECT AN INSTITUTION" field in the window that opens. On the corporate side, the "VERIFY E-DECLARATION USER" tab in the WORKPLACE CARD INFORMATION > SGK AUTHORITY INFORMATION menu checks whether your role comes through as "EMPLOYER" or "EMPLOYER'S REPRESENTATIVE".

If your role does not come through, the problem is usually not in ISG-KATİP but in SGK records. In this case, the guide says to contact the SGK employer registration unit to which your workplace belongs and have the necessary procedure done so that you appear as the employer. If you cannot see a contract pending approval, first check this chain of authority.

ISG-KATİP menus: applying through Process Management

Transactions the employer starts themselves run under PROCESS MANAGEMENT in the left menu. The flow in the guides is similar for every process:

1. Open the relevant sub-menu. For example, if you will take on the service yourself, PROCESS MANAGEMENT > EMPLOYER AND EMPLOYER'S REPRESENTATIVE DECLARATIONS; if you will employ an apprentice under MESEM (vocational education centres), PROCESS MANAGEMENT > INDIVIDUAL NOTIFICATION APPLICATIONS.
2. Click the "+ NEW" tab, select the process from the list that opens and click "START".
3. Read the information page, tick the "I HAVE READ AND APPROVE" box and continue with "NEXT".
4. In the declaration, enter the SGK registration number of the workplace where you are the employer or employer's representative and list the workplace with "FIND".
5. In the last step, tick the approval page and finish the process with "NEXT" or "COMPLETE". When you see the success message, the application is complete.

The declaration is possible only in less hazardous workplaces with fewer than 50 employees, for an employer or employer's representative who has completed the training set by the Ministry; pre-employment and periodic examinations are outside this scope. Details are in our guide for workplaces with fewer than 50 employees.

ISG-KATİP employer transactions: the most common ones

We explained in detail how to approve a contract step by step and which fields to check before approval in our article on ISG-KATİP contract approval. Before approving, we recommend checking with the OHS obligation calculator whether the monthly hours are sufficient for your number of employees.

The periodic inspection and measurement rows are important: an inspection carried out by someone not registered on EKİPNET (the Ministry's register of authorised inspection personnel), or a measurement made without being notified on ISG-KATİP, may not be considered valid in an inspection. It is up to you to ask the engineer or technician who will carry out the inspection, and the laboratory that will make the measurement, for these records. For intervals, see our article on work equipment periodic inspection intervals.

Five checks to make on first login

For an employer logging in to ISG-KATİP for the first time, or after a long time, a short check round prevents surprises in the following months:

1. Authority: Look at your SGK authority information on the individual screen; do all the workplace registrations you are responsible for appear on the list?
2. Role: On the corporate screen, check that your role is verified as "EMPLOYER" or "EMPLOYER'S REPRESENTATIVE" for each registration.
3. Appointees: Compare the names of the specialist, physician and any DSP registered to the workplace, the specialist's certificate class and the monthly hours with the actual situation on site.
4. Pending records: Is there a contract or appointment awaiting your approval? If so, the 5-day period has started running.
5. Old records: If the record of an OSGB you no longer use, or of a specialist who has left, still appears open, make sure the termination is processed.

Note the result of these five checks on one page, and repeat the round when your number of employees, hazard class or OSGB changes.

Common login and authority problems

• Two-factor verification switched off: The system does not allow login. Turn on verification in your e-Devlet security settings and try again.
• The workplace does not appear on the corporate tab: You are not defined in SGK records as the employer or employer's representative for that workplace. Apply to the SGK employer registration unit.
• More than one branch: Each SGK registration appears as a separate workplace. Before approving, check which registration the contract was made for.
• Wrong hazard class: If the class on the record does not match your main activity, do not approve; first clarify the class. For guidance, see our article on how to find out your hazard class.
• Change of OSGB: If the old contract's termination is not processed, the new appointment becomes confused. Make the transition in the order given in our guide to changing OSGB.
• Not noticing a change of appointee: When the OSGB appoints a new specialist or physician, this record also awaits your approval. Make it a habit to check pending records at least once a month.

Our advice to businesses in Bursa and the surrounding provinces is that, before starting the contract process, the employer or employer's representative who will give the approval should try once to log in and see the workplace on the corporate screen. This small check prevents the 5-day approval period from being lost to an authority problem. As a Ministry-authorised OSGB, Bursa Sistemer follows up the approval steps together with you after creating the record in OHS specialist and workplace physician contracts.

Frequently Asked Questions

Is an e-Devlet password enough to log in to ISG-KATİP?

No. According to the Ministry's guides, two-factor verification must be enabled on the e-Devlet account to log in to ISG-KATİP. If it is not enabled, first turn it on in your e-Devlet settings, then try again with the "E-Devlet Login" button.

Who can give approval on ISG-KATİP?

Approval is given by the person defined in SGK records as the employer or employer's representative for that workplace, using their own e-Devlet login. If your authority does not appear at the "VERIFY E-DECLARATION USER" step, the SGK record must be corrected first.

What happens if I do not approve the contract within 5 days?

The service does not start under an unapproved contract or appointment; your workplace appears in the system without appointees. The 2026 base administrative fine for not appointing a specialist or physician is 111,263 TL for each person not appointed and is repeated every month the breach continues.

Can I see the authority of the person carrying out a periodic inspection on ISG-KATİP?

Periodic inspections are carried out by an engineer, technical teacher, technician or higher technician registered on EKİPNET, and the contract is set up through ISG-KATİP at least 1 day before the inspection. Asking before the inspection whether this record has been made protects the validity of the report.