Submission and deadline for your tax return The deadline for submitting your tax return is 31 May 2017 for self-employed persons How you submit your tax return depends on which tax return form you are using: The tax return can be submitted online at skatteetaten.no or altinn.no or on paper. Persons who do not receive a pre-completed tax return must complete and submit the "Tax return for persons who have not received a pre-completed tax return" (RF-1281). It can be submitted electronically as an attachment via the online e-mail form or on paper. Practical tips about the tax return How to change an item, how to submit with attachments, print, submit on paper, change your bank account number, etc. Online access to your tax return You need a Norwegian national identity number or D-number to get online access to your tax return etc. Extended submission deadline You can apply to the tax office for an extension of the deadline if you have special reasons, for example sickness or absence due to travel, which make it very difficult for you to submit the tax return by the deadline. You can apply for an extension of the deadline online. See further details at skatteetaten.no. Search for "RF-1115" at skatteetaten.no for more information about an extension of the deadline. You can also submit an application in writing stating the grounds for your application and your personal identity number, name and address.