To apply for your DigiD you need to have ready
- a citizen service number (‘Burger Service Nummer’ – BSN)
- your date of birth
- a home address (postal code and house number) that is registered with municipality
- a mobile phone, if you opt for the 2-step authorization, which is recommended as it will give better protection of your personal data and websites of some providers require this
- your email address
You can then register at the Digid website. Though most information at this site is available in English, the registration pages unfortunately are not. There is, however, an excellent tutorial in English on how to apply for a DigiD.
Later on you can change your DigiD settings.