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Payroll – Calculation of Health and Social Insurance Contributions

Calculation of Health and Social Insurance Contributions

Written by Vývojář ABRA Flexi

Health Insurance Contributions

The total health insurance contribution is 13.5%.

  • 4.5% is paid by the employee

  • 9% is paid by the employer

The employer determines the insurance amount by calculating 13.5% of each employee's assessment base and rounding the result up to the nearest whole crown.

The insurance amount that the employer pays to the health insurance company is the sum of the rounded insurance amounts of the individual employees insured with each health insurance company.

Employee

Employee share of 4.5% - the calculation is rounded up to whole crowns.

Employer

The employer share of 9% is calculated as the difference between the total rounded amount and the rounded employee contribution.

Example

The employee's gross income is CZK 34,820.

  • The total health insurance contribution is 13.5%

CZK 34,820 x 13.5% = CZK 4,700.70, rounded up to CZK 4,701

  • Employee contribution of 4.5%

CZK 34,820 x 4.5% = CZK 1,566.90, rounded up to CZK 1,567

  • Employer contribution of 9%

Difference between the amounts: CZK 4,701 - CZK 1,567 = CZK 3,134

In Flexi, health insurance contribution values are always rounded to whole numbers.

Social Security Contributions

  • For employers, the contribution is 24.8% of the assessment base, which corresponds to the total of the assessment bases of its employees, of which 2.1% goes to sickness insurance, 21.5% to pension insurance, and 1.2% to the state employment policy,

  • For employees, the contribution is 7.1% of the assessment base, of which 0.6% goes to sickness insurance and 6.5% to pension insurance,

Employee

For employees, the share is 7.1% of the assessment base - the calculation is rounded up to whole crowns

  • Employee contribution of 7.1%

CZK 34,820 x 7.1% = CZK 2,472.22, rounded up to CZK 2,473

Employer

For the employer, the contribution is 24.8% of the assessment base, which corresponds to the total of the assessment bases of its employees.

The calculated amount is rounded up to whole crowns.

The contribution for the entire company is calculated from the total base across all employment relationships.

For example, the total assessment base is CZK 137,692

CZK 137,629 x 24.8% = CZK 34,147.62, rounded up to CZK 34,148

For this reason, the rounding difference is distributed among individual employees in the ZAOKROUHLENÍ SP component - Company Social Security Rounding.

The company's social security contribution is not in whole CZK but, because of rounding, extends to several decimal places.

Unsupported Social Security Contributions

Flexi does not support increased contributions for paramedics or contributions for high-risk employment

  • 29.8% of the assessment base, which corresponds to the total of the assessment bases of its employees who work as paramedics or as members of a company fire rescue unit, of which 2.1% goes to sickness insurance, 26.5% to pension insurance, and 1.2% to the state employment policy

  • 27.8% of the assessment base, which corresponds to the total of the assessment bases of its employees who work in high-risk employment, of which 2.1% goes to sickness insurance, 24.5% to pension insurance, and 1.2% to the state employment policy. (The rate is being increased gradually – to 28.8% in 2027 and 29.8% starting in 2028)

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