Income tax for Mini-Job business owners/shareholders?
I am a compulsory social security employee (part-time) and have recently become self-employed as a founder of a GmbH/UG with a small business on the side, where I work as the sole managing director for 400,- euros per month (current turnover/order volume unfortunately does not allow for higher salaries and additional employees, I have several small orders/clients).
Do I need to register my activity as a managing director (400,- euros) with the Mini-Job-Center and ELENA, and if so, what contributions are due (flat-rate wage tax 2% or 20%? Levies? Social security contributions?)?
Who is responsible for paying the contributions? Personal or company expenses?
Thank you in advance!