Norway Rent Increase Calculator
Work out how much rent can legally be increased in the annual CPI adjustment under the Norwegian Tenancy Act § 4-2.
How to use the rent increase calculator
- Enter the rent you pay today.
- Enter the latest officially published 12-month CPI change (see the note below).
- The calculator shows the maximum legal new rent and the increase in kroner.
How the rent increase is calculated
Worked example: rent of 15,000 kr with a 3 % CPI change may be raised to 15,000 × 1.03 = 15,450 kr, which is 450 kr more a month and 450 × 12 = 5,400 kr a year. Section 4-2 of the Norwegian Tenancy Act ties the annual adjustment to the consumer price index rather than to a percentage the landlord picks freely, and the increase may take effect no earlier than one year after the previous adjustment.
Section 4-2 of Norway's Tenancy Act gives landlords the right to adjust rent once a year in line with the change in the consumer price index (CPI) over the previous 12 months — no more and no less. The adjustment can happen at the earliest one year after the tenancy started, or one year after the previous adjustment, and the landlord must give the tenant at least one month's written notice.
Frequently asked questions
Does the landlord have to give notice before increasing the rent?
Yes, the landlord must notify the tenant in writing with at least one month's notice before the new rent takes effect.
Can the landlord increase rent by more than the CPI change?
Not under the annual CPI adjustment in § 4-2 — it's capped at exactly the CPI change. The landlord can instead demand a one-off adjustment to market rent every three years in long-term tenancies, which is a separate, more involved process.
How often can rent be CPI-adjusted?
At most once a year — at the earliest one year after the tenancy started, or one year after the previous adjustment.