The gross amount lands in your account, but the VAT was never yours, the income tax advance has to be set aside, and Polish social contributions are owed whether or not anything came in this month. Below is what actually remains.
Computed with 2026 rules, assuming the same monthly invoicing all year: the health contribution bracket depends on annual revenue.
A ZUS statement has three separate lines: social contributions (pension, disability, sickness, accident), the Labour Fund and the health contribution. The sickness one is voluntary.
12,300 zł lands in the account. The VAT (2,300 zł) was never yours, the tax advance is about 919 zł and full contributions are 2,757.34 zł, leaving roughly 6,323 zł — assuming the same invoicing all year and no costs.
The health contribution on the Polish flat rate has three brackets set by annual revenue: up to 60k, up to 300k and above. Crossing a threshold raises it in a step, not gradually.
Yes. They are owed for a month of trading, not per invoice, which is why they are counted once a month here — three invoices in March do not mean three bills.
No, deliberately. Costs are individual, and guessed costs would overstate what is left. The app takes your real ones.
No. It is a calculation from published rates, useful for planning. Check it with an accountant before paying.