When You Need to Pay Tax on Crypto
The Skatteverket crypto views hold that virtual coins as actual, real money, just something you own. So, nearly every time you unload crypto, it thus constitutes a taxable event. Even though ordinary people think of crypto as “digital money,” the Skatteverket treats it more like property, and property sales always have tax implications.
Taxes are due in digital form on May 2nd, or in March if you choose to file in paper form.
Help Declaring Crypto
Everything listed below must be declared and entails crypto tax:
- If you exchange virtual coins for fiat, since that constitutes a gain
- Swapped cryptos: a sale in Skatteverket’s eyes. You’ve disposed of one asset and acquired another.
- Buying stuff using crypto cash: anything, whether it’s a coffee or a laptop
- Earned crypto through your actions: must also be declared and reported differently from your capital transactions.
Tax-Free
The fiscal office does encourage HODLing, and so just acquiring or stashing it doesn’t entail duties until selling (if you profited). That also means that if you sent somebody crypto as a gift, out of pure altruism with no strings attached, that’s not taxable for you or them. Receiving airdrops and new coins are also treated as gifts, and you don’t owe anything for receiving them until they’re sold.
Deductions
The same applies to charities; however, when it comes to claiming such donations, that charity has to be approved by the state, and each donation must be at least 200 SEK, and you must have donated 2,000 SEK total for the year.
As for general deductions being used to reduce your tax burden, you can do so, but only up to 70% of them. If your crypto is lost or stolen, sadly, none of that can be used as credit to lower your debt off tax gains. Notably, interest made off of DeFi loans is regarded as capital gains and is taxed at the same 30% in section 7.2.
While filing your crypto taxes ensures compliance, it’s also a good time to think about putting your capital to work. 8lends offers collateral-backed loans to promising projects that often cannot secure funding from traditional banks.
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K4 Form Crypto
The first thing you have to do before you even begin filling out the K4 Form for crypto is to collect all of your records.
Step 1: Preparation
Yes, they’re a pain, but you’re required to attach them, and if the Skatteverket decides to audit you, if you can’t prove it, it won’t matter. Also, there’s no point in trying to hide any wallets or stashes, since with the new Markets and Crypto Assets law passed by the EU for next year, they can instantly access anything you’re holding. Also, the Swedish government requires you to pay on any worldwide income, not just Swedish-based.
Docs to scrounge together:
- Transaction history
- Cash gained for mining, liquidity pools, and ICOs
- Data, amounts, and exchange rates for each transaction
- Balances
- Financial statements
Step 2: Access the Skatteverket’s Online Tax Portal
Go to the official Skatteverket website https://www.skatteverket.se. Click on “Logga in” (Log In) in the top-right corner and then log in using one of the following methods:
- BankID (recommended for secure access)
- Mobile BankID
- Security card (if applicable)
Once logged in, select “Inkomstdeklaration 1”. Any activity completed as a business, employee, or professional for cryptos must be listed as ordinary income. This is different than capital gains in that your work is what you’re trading, not another asset.
Step 3: Fill Out the K4 Form Section
This is the section dedicated to filling out capital gains and losses. After entering your income declaration, scroll to “Kapital” (Capital) section. Click on “K4 – Försäljning av värdepapper och kryptotillgångar”. You’re going to list:
- each type of asset you disposed of
- how much you spent total on that asset in the calendar year
- how many units of the asset you bought
- what you sold the units for
Attach your documents as proof.
Cost Basis
People buy crypto assets at different prices originally and then sell them, so what’s the original paid amount on which the purchase price should be set? Some nations use the first-in-first-out method and the last-in-last-out method.
The Swedish government prefers average cost. It’s quite simple: you take the total amount of money you spent on that coin during the year and divide it by how many units of it you bought. To calculate the total gains, subtract the sale price from the average cost price.
Step 4: Double Check Everything’s Correct and Submit
Carefully review all entered information for accuracy. If everything is correct, click “Spara och fortsätt” (Save and Continue). Submit your K4 form along with your full Inkomstdeklaration 1.
You will receive a confirmation from Skatteverket once the submission is complete.
Crypto Tax on Business and Employee Income
Once again, crypto tax 2025 activities that you engage in, trading work in exchange for cryptocurrency, are treated as just income, using the same brackets, requiring a T2 form. Mining and receiving your salary in crypto are examples of that.
A fascinating detail where Sweden stands out from other countries is that most people do not pay a national income tax. Rather, the tax they usually pay is to the municipality. Municipality taxes are 29-35%, with an average of 32%. The only people who pay a national income tax are those who earn over 598,500 SEK per year, in the amount of 20%. Inkomstdeklaration 1 is the main tax form for your personal income, like salary or wages. NE-bilaga is an attachment used if you are a freelancer or run a small business. You report your business income and expenses here. However, if you create a corporation, you can pay 20.6% corporate tax.
Erik, a freelance crypto miner in Stockholm, earns SEK 200,000 from mining in 2025. After deducting SEK 20,000 in business expenses off electricity and equipment, his net taxable income ends up SEK 180,000. At the Stockholm municipal and regional tax rate of 30.60%, Erik owes SEK 55,080 in municipal taxes. Since his income is below the state tax threshold, he owes no national tax.
Conclusion
Filing your crypto taxes in Sweden doesn’t have to be intimidating. By carefully organizing your transaction records, understanding which activities count as taxable events, and correctly completing the K4 form and Inkomstdeklaration 1, you can ensure compliance while minimizing errors and penalties.
Filing taxes accurately is one part of managing your crypto portfolio—but making your capital work efficiently is another. 8lends provides collateral-backed loans with high interest rates to carefully vetted projects that conventional banks often overlook. With rigorous credit scoring and deep vetting, 8lends lets you invest confidently, helping your money grow while supporting innovative ventures.
