Tax interest (belastingrente) - interest charged by the Belastingdienst if a return is filed late, with errors, or tax is paid later. It is not a fine, but compensation for time. Choose a topic - the answer will expand.
Important: interest is charged even with an extension. If you cannot prepare your return by 1 May, request a provisional tax assessment (voorlopige aanslag) - then no interest is charged or it will be lower. We will file the request for you -
fill in the form.