The Netherlands has a progressive tax rate between 33-52%. Furthermore, there is taxation on substantial interest, savings and investments. Do not forget that there are also many tax credits and benefits for certain groups of people, including: (single) parents, house owners, workers, non-working spouses, etc. When you have the 30% tax facility, you will pay significantly less tax because part of your remuneration will be paid as a tax-free expense allowance.