How to fill in the tax return for sole proprietorships Share Print Thanks! Tell more friends Thanks! Try again Tell a friend Tell a friend Recipient's e-mail Your e-mail Share with: LinkedIn Twitter Facebook 1 Start 2 What you must do first 3 Log in to Altinn 4 Essential information about the tax return and attachments 5 Enter information about your sole proprietorship 6 Fill in attachments 7 Submit the tax return for sole proprietorships with attachments 8 What will happen after you have submitted What will happen after you have submitted Only once you have submitted your tax return and the Norwegian Tax Administration has processed it will you receive a tax assessment. Self-employed persons and their spouses will receive their tax assessments between 2 August and mid-October. Forrige Did you find what you were looking for? Thank you for your feedback Yes No Vennligst velg en vurdering What were you looking for? Maks 255 tegn. Kun tall og bokstaver.