Crypto Tax in Sweden: A Complete Guide for 2026

Sweden has a well-established framework for crypto taxation. The Swedish Tax Agency (Skatteverket) provides clear guidance.

Core Principles

Principle	Detail
Crypto is an asset	Taxed as capital gains
All disposals are taxable	Crypto-to-crypto included
All losses are deductible	At reduced rate
Mining is income	Taxed as business income
No holding tax	Only tax when you sell

Capital Gains Tax

Detail	Rate (2026)
Capital gains tax	30%
Crypto-to-crypto trades	Taxable at 30%
Crypto-to-fiat trades	Taxable at 30%
Gift/inheritance	Taxable in some cases

Cost Basis

Sweden mandates the average cost method (genomsnittsmetoden). You cannot use FIFO or LIFO.

Step	Example
Total SEK spent on BTC	50,000 SEK
Total BTC acquired	1 BTC
Average cost per BTC	50,000 SEK
Sell 0.5 BTC for	40,000 SEK
Cost of 0.5 BTC	25,000 SEK
Gain	15,000 SEK
Tax (30%)	4,500 SEK

Crypto-to-Crypto Trades

Every crypto-to-crypto trade is a taxable event in Sweden.

Trade	SEK Value	Taxable Event
BTC → ETH	Market value of BTC in SEK at time of trade	Yes — dispose BTC, acquire ETH
ETH → USDT	Market value of ETH in SEK at time of trade	Yes — dispose ETH, acquire USDT

You must calculate the SEK value at the exact time of each trade using a reliable source.

Loss Deduction

Losses are deductible but at different rates:

Type of Loss	Deduction Rate
Loss on crypto sale	70% of loss deductible
Loss on worthless token	70% deductible
Loss on theft/scam	70% deductible

A 1,000 SEK loss reduces your taxable gain by 700 SEK, saving 210 SEK in tax.

Staking and DeFi

Activity	Tax Treatment
Staking rewards	Taxable as capital income at receipt
Airdrops	Taxable at market value when received
DeFi lending interest	Taxable as capital income
Liquidity mining	Taxable as capital income

Mining

Aspect	Tax Treatment
Mining income	Taxable as business income
Deductible expenses	Electricity, hardware, internet
VAT registration	May be required
Social security	May apply

Reporting

Requirement	Detail
Tax return (Inkomstdeklaration)	File by 2 May
K4 form	Capital gains reporting
Foreign accounts	Report if holding on foreign exchanges
Documentation	Keep for 7 years

Skatteverket has the authority to request data from exchanges.

Key Points

Point	Detail
Only SEK values matter	Calculate everything in SEK
Use Skatteverket’s rates	They publish exchange rates
Report every trade	Even small ones
Don’t forget NFT trades	Taxed the same as crypto
Personal use exemption	Very limited

Bottom Line

Sweden taxes crypto gains at 30% using the average cost method. Every crypto-to-crypto trade is a taxable event. Loss deductions are limited to 70% of the loss. Keep complete records of every trade in SEK values. The Swedish Tax Agency provides good guidance but expects full compliance.