Security level 4 – log in using a Buypass smartcard
If you use a Buypass smartcardto log in, you gain access to the highest security level in Altinn. This security level is required, among other things, to sign a certificate of debt to the State Educational Loan Fund and to submit an official receiver’s report.
Security level 3 - log in via MinID or enterprise certificate
If you choose to log in via MinID, you gain access at the second-highest security level in Altinn. Among other things, this level is required in order to read Settlement Reports (K27 and K37) from the Norwegian Labour and Welfare Organisation (NAV) in Altinn. Enterprise certificates also enables log in with security level 3.
Security level 2 - log in using PIN-codes from Altinn
PIN-codes from a letter ordered via Altinn or received by SMS enables you to log in at security level 2. At this level you have access to most of the forms in Altinn. You also have access to edit your profile under My profile.
Security level 1 - log in with a password
If you choose to log in using a password only, you will have access to a limited number of forms in Altinn, including some of the forms from Statistics Norway and the Tax Administration. You will not have access to change your mobile phone number in My Profile at this security level.
Security level 0 - log in without a personal ID-number
If you do not have a personal ID-number (SSN or D-number), you can only log in using the user name and password that you yourself has registered. Only a few forms and services are available on security level 0.