The P-form (in Dutch, P-formulier), which stands for particulier (natural person individual), is the stand tax form for residents who resided the full calendar year in the Netherlands. This is usually the case when you go into the second year of your stay in the Netherlands. Your initial M-form filing requirement will change into the P-form . If you are an employee and lived for the full calendar year in the Netherlands, you will need to complete the P tax filing form.