Forex Trading Tax in Sweden 2026 — Complete Guide

Forex Tax Treatment in Sweden

Forex profits are taxed as capital gains at 30%. Losses can be offset at 70% against other capital income. If the offset results in a capital income deficit, 30% of that deficit (up to SEK 100,000) reduces tax on earned income. Sweden also offers ISK (Investment Savings Accounts) with flat annual taxation, but CFDs/forex are typically not eligible.

Forex and CFD profits are kapitalinkomst, taxed at a flat 30% in the kapital category — separate from earned income.

Tax Rates Table — Sweden SEK

Applicable rates as of April 2026.

What Counts as Taxable?

Most Sweden residents need to declare the following types of trading income:

• Realised forex/CFD capital gains. Profits from closing positions during the tax year.
• Dividend-equivalent payments. Cash adjustments paid by your broker on long share-CFD positions when the underlying issues a dividend.
• Carry / swap interest received. Positive overnight financing credited to long carry-trade positions is normally taxable as financial income.
• Cashback, rebates and bonuses. Cash incentives paid by the broker may be reportable as miscellaneous or financial income.
• Crypto CFD profits. Profits from cryptocurrency CFDs are taxed under the same rules as other CFDs (this is different from spot crypto, which usually has its own treatment).
• Foreign exchange differences. Gains or losses from holding foreign-currency balances may need to be reported separately when converted back to your home currency.

Professional vs Retail Trader — Tax Implications

Sweden has no special retail/pro distinction for FX. If trading is operated as a business (enskild firma or AB), profits move to naringsverksamhet at progressive municipal + state rates plus social contributions.

How to Declare Forex Income in Sweden

1. 1

   Download your annual statement from each broker (and convert all amounts to SEK using year-end FX rates if your account is in another currency).

2. 2

   Calculate net realised profit or loss for the tax year — buy/sell pairs only (unrealised positions are usually excluded, except for mark-to-market regimes).

3. 3

   Add carry/swap interest, dividend-equivalent payments, and any cashback or rebates.

4. 4

   Open Inkomstdeklaration 1 — section K4 for securities on the Skatteverket portal.

5. 5

   Enter the totals in the capital-gains / investment-income section and indicate the source country of each broker.

6. 6

   Pay any balance owed by the deadline (2 May of the following year) and keep the receipt and broker statements with your records.

Loss Offset Rules

Record Keeping Requirements

Keep all broker statements showing trade-by-trade results and any year-end summaries for at least 7 years.

• Annual broker statements (PDF and machine-readable formats)
• Trade-by-trade ledger with timestamps, instrument, and P&L
• Year-end account valuation (mandatory for wealth-tax regimes)
• Proof of any foreign tax already paid, to claim against home liability under double-tax treaties
• FX-conversion rates used to translate amounts into SEK

Tax Reporting Deadlines

Recommended Accountants & Software

Use Skatteverket's free e-deklaration (Mina sidor). Specialist redovisningskonsulter handle K4 for active traders with many trades.

We do not endorse any single product. For active traders we generally recommend a local advisor who has direct experience with CFD/derivative reporting and any cross-border passporting that applies to your broker.

Frequently Asked Questions

Popular brokers used by Sweden traders