How long does Norwegian registration take for a foreign company (NUF)?

The registration itself: typically 2–4 weeks. The honest timeline: longer — because the dependencies (D-numbers for people, HMS cards, bank dialogue if you need an account) each add weeks and start at different times. Companies that begin five weeks before site start make it; companies that begin after signing usually pay for idle days. Start the registration the week the contract becomes likely, not the week it is signed.