Dutch people are some of the best English speakers in the world.
EF’s English Proficiency Index
actually ranks them as number one, holding a top 3 position since 2011. What this means for TEFL teachers is that demand is limited – with such a high level of proficiency, there isn’t much call for catch-up classes for those who didn’t learn as kids. English lessons are compulsory in Dutch schools, and English is a popular degree subject, so there is scope for employment in the public sector more so than at private language schools.
Private language schools in the Netherlands are usually geared towards training in specific fields, such as Business English, Legal English or Academic English, and will expect teachers to be experienced in certain topics. With advanced students, you can’t just wing it as you might with teaching to beginners or young learners. If you don’t have knowledge of these specialist subjects you might be able to find work teaching IELTS or other exam preparation classes.
Giving one-to-one classes on a freelance basis isn’t so popular in the Netherlands. Locals will have a good knowledge of English by the time they're adults, and even university students don’t often seek extra classes because they’re already so well catered for. However, as the Netherlands is a popular place to live, you might find a small market for teaching English to people from other nationalities who are less advanced in English, such as Spanish students studying at local universities.
Being on time is really important to the Dutch, and they consider it very rude to cancel plans at short notice. Learn as much about the culture as you can before you go to make a good impression with your students, and learn to take their brutal honesty on the chin – it’s just the way they are and doesn’t mean you’re doing a bad job.