In law no 5510, optional insurance is defined as "the insurance which allows the individuals to be subject to long term insurance branches and universal health insurance by paying optional premiums".
As of 01.10.2008, the conditions below apply in order to be optional insurance holder:
1. Residency in Turkey,
2. Being over the age of 18,
3. Not working in a manner to require being subject to compulsory insurance in the Law or working as an insurance holder but less than 30 days a month or less than 360 days within the last year or not working full time.
4. Not being put on pension due to one's own insurance
5. Applying to the Institution with an optional insurance request petition