Samboeravtale (cohabitation agreement)

A samboeravtale is a written agreement between the two of you as cohabitants that sets who owns how much of the home, that is the eierbrøk. There is no “cohabitation law” giving an automatic 50/50 split: each of you owns the share you actually paid for, and an equal split applies only when nothing else can be shown.

If you contribute different amounts of egenkapital, or different shares of the loan and running costs, the agreement should reflect that. Without one, it can be hard to document who paid what if you ever separate.

Cohabitants also do not inherit from each other without a will. A cohabitant who has, has had, or is expecting a shared child with the deceased has a right to a minimum inheritance of 4 times the grunnbeløp, 546,196 kr in 2026, but beyond that you need a will to protect each other. Set up the samboeravtale when you buy, and consider a will alongside it.