Norway Corporate Income Tax (CIT)
The corporate income tax (CIT) rate in Norway is set at 22%, with an elevated rate of 25% for specific companies operating within the financial sector. CIT returns are due at the end of May following the financial year, except for companies under the petroleum tax regime, where they must file by the end of April. Any tax arrears must be paid within three weeks of the public tax assessment. Additionally, estimated tax payments are due on 15 February and 15 April in the year following the income year.
Special Tax Regimes
Petroleum: Income from upstream petroleum activity is subject to a marginal tax rate of 78% (22% CIT + 56% special tax).
Hydropower: Income from hydropower production is subject to a marginal tax rate of 67% (22% CIT + 57.7% resource rent tax).
Onshore Wind: Income from onshore wind power production is subject to an effective marginal tax rate of 47% (22% CIT + 25% resource rent tax), applicable from 1 January 2024.
