Definition
A social security number is the identifier used in a country's social-insurance system to track contributions, healthcare entitlement, pensions, and other benefits linked to lawful work or residence. Some countries issue it automatically through the employer or after address registration, while others require a separate filing. It is not the same as the immigration permit itself, but it is essential for practical participation in the labour market and health system.
Related terms
Address Registration
The post-arrival administrative step where a new resident reports their home address to the local authority so other systems can recognise their residence.
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Health Insurance Coverage
Proof that an applicant is covered for medical costs, whether through public insurance, employer enrolment, or a qualifying private policy.
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Tax Identification Number
A personal tax number issued by the authorities so income, payroll, and tax obligations can be recorded under the correct person.
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