Summary
Norway uses a dual income tax system with a flat 22% ordinary tax (alminnelig inntekt) on net income and a progressive bracket tax (trinnskatt) with rates from 1.7% to 17.6% on gross personal income. Employees also pay a national insurance contribution (trygdeavgift) of 7.7% on salary income. A personal allowance (personfradrag) of NOK 108,550 reduces the base for ordinary tax. The employer handles all withholding through the tax deduction card (skattekort) system.
How it works
Your take-home pay is reduced by the following deductions:
- Ordinary tax (alminnelig inntekt) — 22% flat rate on net income after personal allowance and standard deductions
- Bracket tax (trinnskatt) — progressive surcharge on gross personal income across 5 steps, ranging from 1.7% to 17.6%
- National insurance contribution (trygdeavgift) — 7.7% of gross personal income for salary earners
The personal allowance (personfradrag) of NOK 108,550 reduces taxable income for ordinary tax purposes. There is also a minimum standard deduction (minstefradrag) of 46% of salary income, capped at NOK 109,950, which further reduces the ordinary tax base.
Income Tax Bands (2025)
Ordinary tax (alminnelig inntekt)
| Taxable income | Rate |
|---|---|
| All net income above personal allowance | 22% (flat) |
Bracket tax (trinnskatt)
| Gross personal income | Rate |
|---|---|
| Up to NOK 208,050 | 0% |
| NOK 208,051 — NOK 292,850 | 1.7% |
| NOK 292,851 — NOK 670,000 | 4.0% |
| NOK 670,001 — NOK 937,900 | 13.6% |
| NOK 937,901 — NOK 1,350,000 | 16.0% |
| Above NOK 1,350,000 | 17.6% |
The bracket tax is applied to gross personal income — deductions and allowances do not reduce the bracket tax base.
Combined marginal rates
| Income range | Ordinary tax | Bracket tax | Trygdeavgift | Total marginal rate |
|---|---|---|---|---|
| Up to NOK 208,050 | 22% | 0% | 7.7% | ~29.7%* |
| NOK 208,051 — NOK 292,850 | 22% | 1.7% | 7.7% | ~31.4%* |
| NOK 292,851 — NOK 670,000 | 22% | 4.0% | 7.7% | ~33.7%* |
| NOK 670,001 — NOK 937,900 | 22% | 13.6% | 7.7% | ~43.3%* |
| NOK 937,901 — NOK 1,350,000 | 22% | 16.0% | 7.7% | ~45.7%* |
| Above NOK 1,350,000 | 22% | 17.6% | 7.7% | ~47.3%* |
*The ordinary tax effective rate is lower than 22% because the minstefradrag reduces the base. These combined rates are approximate.
Social Security Contributions
National insurance (trygdeavgift)
| Income type | Rate |
|---|---|
| Salary income | 7.7% |
| Self-employment income | 11.0% |
| Pension income | 5.1% |
The trygdeavgift applies to gross personal income with no upper cap. The employer also pays an employer’s social security contribution (arbeidsgiveravgift) of 14.1% on top of gross salary (varies by geographic zone from 0% to 14.1%).
Worked Example
For a gross annual salary of NOK 600,000 (single):
-
Trygdeavgift (national insurance):
- NOK 600,000 x 7.7% = NOK 46,200
-
Minstefradrag (minimum standard deduction):
- 46% of NOK 600,000 = NOK 276,000, capped at NOK 109,950
- Minstefradrag: NOK 109,950
-
Ordinary tax base:
- NOK 600,000 - NOK 109,950 (minstefradrag) - NOK 108,550 (personfradrag) = NOK 381,500
-
Ordinary tax:
- NOK 381,500 x 22% = NOK 83,930
-
Bracket tax (trinnskatt):
- NOK 0 — NOK 208,050: NOK 0
- NOK 208,051 — NOK 292,850 at 1.7%: NOK 1,441.60
- NOK 292,851 — NOK 600,000 at 4.0%: NOK 12,286.00
- Total trinnskatt: NOK 13,727.60
-
Total tax:
- Trygdeavgift: NOK 46,200
- Ordinary tax: NOK 83,930
- Bracket tax: NOK 13,728
- Total: NOK 143,858
-
Take-home pay: NOK 600,000 - NOK 143,858 = ~NOK 456,142/year (~NOK 38,012/month)
Assumptions and Limitations
- 2025 rates only — uses thresholds and rates for the 2025 income year
- Employment income only — models salary earners. Does not model self-employment, capital gains, or share dividend income (which have different rules under the shareholder model)
- Single taxpayer — does not model the Class 2 tax class for single parents (provides higher personal allowance)
- Standard deductions only — uses the minstefradrag standard deduction. Does not model itemised deductions for commuting expenses, union fees, interest on debt, or other actual costs that may exceed the standard deduction
- Mainland Norway — employees in Northern Norway (Troms and Finnmark) receive a special tax deduction (Finnmarksfradrag) of NOK 20,550 that is not modelled
- Employer zone contributions — the employer’s social security rate varies by geographic zone (0-14.1%) but does not affect the employee’s take-home pay
- No wealth tax — Norway levies a wealth tax on net assets above NOK 1,760,000, but this is assessed separately and not deducted from salary
- Holiday pay (feriepenger) — Norwegian employers withhold 12% (or 14.3% for employees over 60) of prior-year earnings as holiday pay, paid out in June. This affects monthly cash flow but not annual totals