Health insurance covers the cost of medical care for you and your family. If you work and pay income tax in the Netherlands – and you are over eighteen years of age – you are subject to Dutch social security legislation, which means you are obliged by law to take out health insurance. You must have a Dutch insurance policy that provides coverage for health care costs and meets the requirements of the Dutch Health Insurance Act (Zorgverzekeringswet). Do you already have health insurance in your own country so you figure you don’t need an additional policy? Not so fast. You still have to take out health insurance in the Netherlands. It is compulsory for you to have Dutch health insurance for the whole time that you work in the Netherlands.