Primary dwelling
A primary dwelling (primærbolig) is Skatteetaten's term (the Norwegian Tax Administration) for the home you live in for most of the year, that is, your permanent residence. The classification decides how the home is valued for wealth tax and which rules apply on a sale, and it differs from all other homes you own, which count as secondary dwellings. The distinction is one of the most consequential in Norwegian property taxation.
What counts as a primary dwelling is set by your registered address in the National Population Register and by actual use. The main rule is that the home where you were registered as resident on 31 December in the income year counts as your primary dwelling for that year, as long as you genuinely live there. Commuter homes at your place of work are usually a secondary dwelling, even if you stay there for much of the week. If you own several homes where you actually live, you must document how your time is split to Skatteetaten, and each taxpayer has only one primary dwelling.
The wealth value of a primary dwelling is set under the Tax Act section 4-10 at 25% of the calculated market value, against 100% for a secondary dwelling. For the part of the value above 10 million kroner, a rate of 70% applies to primary dwellings too. The rates can be revised by the Storting, and you find the current rates at Skatteetaten. The principle is that the primary dwelling, seen as the household's basic housing need, is taxed lightly, while secondary dwellings (rental and commuter homes) are to be taxed closer to real value. The market value is calculated by Skatteetaten per square metre of P-rom (primary rooms) or UFA, based on price statistics for the postcode and dwelling type, and it is this standardised figure that is scaled down by the primary dwelling percentage.
On a sale, the primary dwelling triggers a particularly important exemption: the gain is tax free under the Tax Act section 9-3 if two conditions are met:
- Ownership period: you have owned the home for at least one year (12 full calendar months).
- Residence period: you have lived in the home for at least one of the last two years before the sale.
If both conditions are met, the whole gain is tax free regardless of size. A loss is then not deductible either. If the residence period is broken, or you sell before the ownership period is met, the gain is taxed as ordinary income (at the current rate of 22%, but the rate can change). Special rules apply for inheritance, separation, illness and work situations that can protect the residence period ("brukshindring", an obstacle to occupancy). Skatteetaten gives concrete guidance for each situation.
Second-order consequences:
- Renting out a primary dwelling. Rental income from part of your own primary dwelling is tax free as long as no more than half the home is rented out, measured by rental value. If you rent out the whole home or more than half of it, the profit becomes taxable. The rules are in the Tax Act section 7-2.
- Municipal property tax. Each municipality can choose to use Skatteetaten's wealth values as the basis for calculating tax on homes, so the primary/secondary distinction carries through here as well.
- Boligbyggelag (housing cooperative associations) and borettslag (housing cooperatives). A share flat in a borettslag is treated in the same way as a primary dwelling if you live there; it is the use, not the form of ownership, that decides.
The most common pitfall is buyers who plan to renovate before moving in and then sell quickly: without meeting the residence condition, you lose the primary dwelling exemption and the whole gain is taxable.
Placepoint does not show the tax status of a home directly, but the property panel lists bruksenheter (individual units of use), UFA and the registered owner, which is the data basis that Skatteetaten's standardised calculation builds on.
How it looks in Placepoint
In Placepoint you find this in the Property panel:

From Placepoint's glossary: Primary dwelling
More information: Skatteetaten: housing and property, Lovdata: Tax Act section 4-10, Lovdata: Tax Act section 9-3, Lovdata: Tax Act section 7-2
English: Primary dwelling (owner's main home, for tax purposes).
Frequently asked questions
What is a primary dwelling?
The home that Skatteetaten treats as your permanent residence, normally where you are registered as resident on 31 December. Each taxpayer has only one primary dwelling.
How is the wealth value of a primary dwelling calculated?
Skatteetaten makes a standardised market value estimate per square metre for the postcode and dwelling type, and uses a low percentage of this as the wealth value. You find the current rate at Skatteetaten.
Is a gain on the sale of a primary dwelling tax free?
Yes, if you have owned the home for at least one year and lived in it for at least one of the last two years before the sale. The conditions are in the Tax Act section 9-3.
Can I rent out part of my primary dwelling tax free?
Yes, if you rent out less than half the home, measured by rental value. If you rent out more, the profit becomes taxable. The rules are in the Tax Act section 7-2.
What happens if I commute and live in several places?
A commuter home is usually treated as a secondary dwelling, not a primary dwelling, even if you stay there often. Your registered address and documented genuine residence are decisive.