AHV = Old Age and Survivors' Insurance, 8.7% of gross salary: social insurance that is intended to partially compensate for lost or reduced earnings due to old age or death
IV = Invalidity insurance, 1.4% of gross salary: social insurance intended to ensure their subsistence through integration measures or cash benefits if they become disabled.
EO = compensation for loss of earnings, 0.45% of gross salary: social insurance intended to partially replace loss of earnings by military, civil service or community service and maternity.
ALV = Unemployment insurance, 2.2% of gross wages: social insurance, to bridge unemployment and support reintegration into the labour market.
FAK = Family equalisation fund, contributions vary from canton to canton: pays family allowances intended to partially offset the costs of maintaining children.
VK = administrative costs, contributions vary from canton to canton: compensation offices levy a surcharge on AHV/IV/EO contributions to cover their own administrative costs.
The contributions for AHV/IV/EO and ALV are split equally between employer and employee. Contributions to FAK and administrative costs are borne exclusively by the employer.