Above all while starting your business you have to think on what insurances you need.
You should think about your personal health insurance (having a health insurance is obligatory in Germany). First of all your health insurance company has to be informed that you will work as a self-employed person.
If you want to start your own business in Germany the corporate liability insurance is one of the most important forms. This is because all companies are liable for damages which are caused by third parties. Please, note that in Germany it often takes time to get insurance policies. Insurance companies will highly analyze your business conditions and your preparation.
Furthermore you should also think about the common risks which you as an entrepreneur will meet during your activity. You need to analyze your expenses and costs, your current situation as well as your expected future risks.
On the next sides you will learn about the most important insurances for your future business.