FINANCE TOOL · UPDATED 2026

ISK vs. AF Tax Calculator (2026 Rules)

Find out if you should invest in an ISK (Investeringssparkonto) or a taxable AF account (Aktie- och fondkonto). Includes the new 2026 SEK 300,000 tax-free limit and current borrowing rate formulas.

📖Guides: Understanding ISK Accounts & Tax Changes (2026) · Skatteförändringar för ISK-konto 2026 (Svenska)

1. Investment Parameters (Investeringsparametrar)

SEK
SEK
%
Yrs

2. Government Parameters (Statliga inställningar)

%

November 30, 2025 rate is 2.55%, establishing a 3.55% notional rate (effective ISK tax rate of 1.065% on the portion exceeding SEK 300,000) for 2026.

Adjust parameters and click Calculate Comparison to see tax drag simulations and final net yield projections.

Understanding ISK vs. AF Accounts in Sweden

Swedish tax residents have two primary options for personal investing: a tax-wrapped ISK (Investeringssparkonto) or a standard taxable brokerage account (AF). While ISK uses flat notional tax based on the total capital (indexed annually to the borrowing rate), AF taxes actual realized capital gains at 30% upon sale.

Frequently Asked Questions (FAQ)

What is the new 2026 ISK tax-free threshold?
Starting January 1, 2026, the first SEK 300,000 of your total combined capital in an ISK (and endowment insurance) is completely tax-free. You only pay the annual schablonbeskattning tax on the portion that exceeds this amount.
How is the ISK tax rate calculated?
The annual tax is calculated as 30% of a notional income (schablonintäkt). This notional income is determined by multiplying your capital base (minus the SEK 300,000 exemption) by the government borrowing rate (statslåneräntan) on November 30 of the previous year plus 1 percentage point (minimum 1.25%).
Should I choose ISK or AF for low expected returns?
If your expected annual return is very low (e.g. below the schablonränta, which is 3.55% for 2026), a standard brokerage account (AF) might be better because you are only taxed 30% on actual realized profits, whereas ISK taxes you on a flat rate regardless of profit.