Many employees wonder why the salary written in their contract differs from the amount that actually arrives in their account. The answer in most cases is social insurance contributions. These contributions are applied in most countries around the world to provide protection for employees upon retirement, disability, or work-related injuries. This article explains how the social insurance system works and how to calculate your net salary.
Social insurance is a mandatory savings system administered by government bodies to protect employees against the risks of old age, disability, death, and work injuries. Such systems exist in more than 180 countries in various forms.
Most social insurance systems include two main branches: old-age, disability, and death insurance — the backbone of the pension — and work injury insurance that covers occupational accidents and work-related illnesses. The system is funded by shared contributions from both the employee and the employer.
The contribution rate deducted from the employee typically ranges from 5% to 12% of the contribution-eligible salary, while the employer pays an equal or higher share separately. These rates differ from country to country and from one system to another.
Illustrative example: an employee with a basic salary of 5,000 units and a 9% contribution rate. Monthly deduction = 5,000 × 9% = 450. Net salary = 5,000 − 450 = 4,550 (before any other deductions). In addition, the employer pays its own separate share, which is not deducted from the salary.
Some systems differentiate rates between local and foreign workers; in certain countries, foreign workers are exempt from pension insurance but are still covered by work injury insurance. Check the social insurance system in your country.
The contribution-eligible salary (contribution base) typically includes: basic salary, housing allowance, food allowance, and regular fixed bonuses. Some other allowances may or may not be included depending on the company's regulations.
Items that generally do not enter the base: irregular bonuses and incentives, travel and relocation allowances, overtime, and in-kind allowances. Regulations set a maximum cap on the contribution base, and anything above it is excluded.
Social insurance contributions typically begin on the first day of employment and end on the last. Employers are required to register the employee with the relevant authority within a few days of the hire date.
When moving from one job to another, the employee generally does not lose their accumulated contribution period. You can check your contribution balance through the official online portal of the social insurance authority in your country.
The pension you will receive upon retirement is calculated based on your total contributions and years of service. Simply put: the longer your contribution period and the higher your average salary, the higher your pension.
Most systems require reaching retirement age (generally ranging from 55 to 65 depending on the country) and completing a minimum number of contribution years (usually 10–15). Early retirement is possible in some systems with a proportional reduction.
A: This varies between countries. In some, foreign workers contribute at the same rate as citizens; in others, they are exempt from the pension system but subject to work injury insurance. Check the social insurance rules in your country.
A: Log in to the official online portal of the social insurance authority in your country using your ID. You will find details of your monthly contributions, total service period, and estimated pension.
A: Social insurance covers retirement, disability, death, and work injuries. Health insurance is a separate system covering medical treatment and healthcare expenses. Both are typically mandatory for employers in many countries.
A: This varies between countries and companies. Fixed and regular allowances like housing allowance may enter the base according to the applicable social insurance regulations. Check with your social insurance authority and your company.
A: Contributions stop when the contract ends, but the accumulated period is preserved. If you return to work later and open a new contribution account, the new period is added to the old one, increasing your future pension.
A: In most systems, withdrawal before reaching retirement age is not permitted except in exceptional cases such as total disability. This mandatory saving is designed to be paid as a pension upon eligibility.