Why is my net salary lower than expected?

A worker receives a bonus and wants to know why the extra payout feels taxed more heavily than the regular monthly salary.

The calculator annualises the higher gross amount, which changes the tax and credit position and makes the extra gross euro look less net-efficient.

Compare the regular salary estimate with a higher one-off gross month and watch the effective tax rate and credits move.

A salary offer mentions holiday allowance separately instead of including it in the monthly gross amount.

The monthly taxable salary is lower during the year, while the holiday-allowance amount is shown separately and affects the annual total.

Compare the regular monthly net amount with the holiday-allowance row and the net yearly total.

Someone receives salary from two employers and wonders why later corrections can appear.

The calculator shows one income stream at a time, so the comparison point is how much of the tax-credit benefit is effectively used through payroll.

Compare one combined income with one smaller salary estimate and focus on credits, effective rate, and why withholding may differ.

A payslip line for wage tax looks larger than the person expected from a simple gross-minus-net view.

The payroll month reflects annualised withholding logic, credits, and sometimes irregular-income treatment, not just a flat percentage on the month's gross salary.

Compare payroll tax, credits, and annualised gross assumptions rather than looking only at gross and net.