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Current for 2026How we verify data: Methodology →

Prorated Salary Calculator

Did an employee start or leave mid-month? Use this prorated salary calculator to find the correct gross pay for any partial work month. The calculation follows Polish Labour Code rules: divide the full monthly gross salary by the total working days in the month and multiply by the days actually worked.

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How we calculate prorated salary

Formula: Prorated salary = (full monthly gross ÷ working days in month) × days worked. "Working days" means Monday–Friday excluding public holidays. Paid annual leave days count as worked days and do not reduce the salary. Unpaid leave and unjustified absences are excluded from the days-worked count.

Calculation example

An employee hired on 10 September 2026 earns 6,000 PLN gross per month. September has 22 working days; the employee worked 16 of them. Prorated salary: (6,000 ÷ 22) × 16 = 4,363.64 PLN gross.

Frequently asked questions

Results are indicative only and do not constitute legal or HR advice. Individual circumstances (part-time contracts, sick pay, deductions) may require consultation with an HR specialist or employment law advisor.

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ResultPLN 3,571.43Prorated gross salary
Deduction amount
PLN 1,428.57
Percentage share
71.43