
The Register of Insured Persons (RZO) is one of the key state registers of Ukraine, which provides a centralized record of all citizens covered by compulsory state social insurance.
RZO was developed by Medirent as a functional subsystem of the Integrated Comprehensive Information System of the Pension Fund of Ukraine. The register is used in all processes of granting pensions, payments, and compensations, and is also a source of data for other government agencies. It is a fundamental digital database that ensures transparency and accuracy in the social insurance system.

Multi-factor, comprehensive data that reflects an individual’s status within the mandatory state pension insurance system and, to a large extent, within the broader social protection framework. Specifically, it includes:
- Basic personal (identification) data of the insured person
- Insurance category of the person (e.g., employee, private entrepreneur, self-employed individual, pensioner, unemployed person, social benefit recipient, etc.)
- Data on the insured person’s accumulated insurance record (service period)
- Information on periods of employment
- Details of reported wages/income used for calculating insurance benefits and insurance record
- Information on hazardous or special working conditions granting pension or insurance privileges
- Amounts of voluntary contributions made under voluntary participation agreements
- Amounts of additional payments to meet the minimum insurance contribution, as stipulated by Article 24 of the Law of Ukraine "On Mandatory State Pension Insurance"
- Data from the electronic pension file
- Records of benefits received under other types of mandatory state social insurance
- Data from the electronic employment record (e-workbook)
- Information from the Electronic Register of Sick Leave Certificates
- Records of documents issued by the Pension Fund of Ukraine to the person (e.g., certificate of mandatory state social insurance, paper or electronic pension certificate)
- Digitized copies of the individual’s documents submitted to the Pension Fund and verified accordingly


