Average basis from the last 12 full months — a separate amount per month (e.g. ZUS contribution changes on sole proprietorship).
Enter the monthly sickness contribution base (before the 13.71% deduction). Each month can differ.
13.71% is deducted from each month’s base according to standard benefit rules.
| No. | Month (optional) | Sickness base (PLN) | After 13.71% deduction |
|---|---|---|---|
| 12 | — | ||
| 11 | — | ||
| 10 | — | ||
| 9 | — | ||
| 8 | — | ||
| 7 | — | ||
| 6 | — | ||
| 5 | — | ||
| 4 | — | ||
| 3 | — | ||
| 2 | — | ||
| 1 | — |
Sets statutory maternity weeks and the total parental leave pool (41 or 43 weeks). By default the second parent uses 9 non-transferable weeks; the rest is assigned to the first parent’s parental field — you can edit all fields.
| Average benefit basis (PLN / month) | — |
| Total leave weeks | — |
| Leave days (×7) | — |
| Daily rate 100% | — |
| Daily rate 81.5% | — |
| Daily rate 70% | — |
Same rate for the whole maternity and parental period.
| Maternity leave | — |
| Monthly equivalent (81,5%) | — |
| Parental leave | — |
| Monthly equivalent (81,5%) | — |
| Total | — |
Maternity at full rate, parental at 70%.
| Maternity leave (100%) | — |
| Monthly equivalent (100%) | — |
| Parental leave (70%) | — |
| Monthly equivalent (70%) | — |
| Total | — |
| Leave length (second parent) | — |
| Monthly equivalent (70%) | — |
| Total for selected period | — |
Maternity lengths (20–37 weeks) and parental pools (41 vs 43 weeks) follow the Polish Labour Code as summarised on gov.pl. Calculation: 12-month average after 13.71% deduction, divisor 30 days per month, rates 81.5% / 100% / 70% per option.
This tool is for information only and does not replace ZUS calculations or professional advice. Actual bases and amounts depend on coverage gaps, pay components, and the law in force.
The calculator averages the bases you type. The social insurance office uses the bases on your filings. If you run a business or employ someone going on leave, we check whether those 12 months are complete.
From the average monthly sickness-insurance base over the last 12 full months. The calculator deducts 13.71% from each amount, the same way the benefit base is set.
Yes. On a sole tradership the contribution changes during the year, so you enter a separate amount for each of the 12 months instead of one figure repeated across the period.
No. It is a simulation of the numbers you enter. The office sets the benefit from the declared bases and the sickness-insurance record.
We will review 12 months of sickness contributions and say what the application still needs.