It depends on the type of employment. The part-time jobs at Zenjob are subject to wage tax (Lohnsteuer), as they are carried out within the framework of short-term employment (kurzfristige Beschäftigung). If you already have a main job, your earnings at Zenjob will be taxed in tax class VI.Please note that it is often worthwhile to file a tax return at the end of the year, as the final tax burden only becomes clear when all other taxable income is taken into account. It is always possible that you have paid too much income tax over the course of a year. This can happen, for example, if your total income for the year (main income and additional income added together) is below the basic annual tax-free allowance (Grundfreibetrag). In Germany, the basic annual tax-free allowance for single persons is €10,347 per year.If you work in a €520 mini-job (which you will NOT find at Zenjob), your earnings are usually taxed with a flat-rate tax of 2% of your earnings and covered by your employer.