How many days can I spend in Norway after emigrating?

During the 3-year emigration period: at most 61 days per income year — and you can have no home at your disposal in Norway. After full emigration: under 90 days a year keeps you clear of re-establishing residency under the 183/270-day rules, but the treaty tie-breaker can still bite if your life visibly re-anchors in Norway. Count ALL days (arrival and departure days included), log them, and treat the summer cabin question with respect — it is where most plans quietly fail.