Chamber of Commerce (KVK)
Starting a business in The Netherlands is relatively easy. Registration is done through the KVK. On their website you will find excellent information on when to register a company, different business forms, legal requirements and more general information and business culture in The Netherlands.
Once you have successfully registered your company with the Chamber of Commerce, they will inform the Dutch Tax Administration about your new company. There are different types of taxes that your business has to pay. You can read more about taxes for businesses on the website of the Belastingdienst.
Freelancers or independent professionals
Many people who start their own businesses work as freelancers or independent professionals. Freelancers are usually called "self-employed without staff" (zzp'ers). Note that this is not a legal form for a business; you are not registered as a zzp'er but as a sole proprietorship. More information about freelancing can be found on the (KVK) website and on the Dutch government's Business.gov.nl website.
Webinars and seminars
In addition to the formal side of starting a business, it is valuable to have a support network and access to training and expertise during the process. The Chamber of Commerce also offers online webinars and offline seminars at its Groningen branch to support you in starting your business.
International Welcome Center North
The website of the International Welcome Center North (IWCN) also contains several pages of information on starting a business.
If your business is growing and you would like to hire staff, there are several things you need to watch out for. Business.gov.nl from the Dutch government has made a handy overview of what you need to do when hiring staff. Among other things, there are differences between temporary and permanent staff.