Savings account vs index fund — Norway

Interactive calculator comparing a savings account against a global index fund under Norwegian tax rules.

superelectric.net/finance

Tax model

Instrument	Rate	Basis
Savings interest	22%	Annual (kapitalinntekt)
Index fund gains	37.84%	Annual realized gains (22% x oppjusteringsfaktor 1.72)

A regular taxable account is modelled, not ASK (aksjesparekonto). ASK defers tax until withdrawal and would show an even larger fund advantage.

Features

• Adjustable starting amounts, interest/return rates, and inflation rate
• Real (inflation-adjusted) values alongside nominal in metrics and table
• Nominal/real toggle on the chart
• Year-by-year breakdown table

Sources

• Kapitalinntekt — Skatteetaten
• Oppjusteringsfaktor — Skatteetaten