Once you have received your BSN number and you start your first work day at Fixx iT, then only can we apply for your tax benefit with the Belastingdienst. This cannot be done in advance as you need to arrive in the Netherlands first and have a BSN number. Processing takes 4 to 8 weeks. Therefore your first salary will be without the 30% ruling and will be called a ‘voorschot’ and the correction in your salary will be taken into account in the second month salary.
30% ruling explained