There is a general step-by-step plan with useful tips and tricks for using Studielink. To find out how to do things like creating a Studielink account or arranging to pay your tuition fees, take a look at the other step-by-step plans as well.
If you have an official home address in the Netherlands, you must use your DigiD to log in. Apply for a DigiD in plenty of time at www.digid.nl. You should do this at least one month before the deadline to enrol in your study programme to avoid enrolling too late.
If you have not used a DigiD to log in before, you should set up a DigiD for your account to avoid problems like a forgotten Studielink user name and/or password. Go to the Studielink Q&A for the step-by-step plan (Logging into Studielink > Logging in using a DigiD > How can I set up a DigiD for my account).