Start by logging in to Skatteverkets website and navigate to "Inkomstdeklaration 1".
When you are on the Inkomstdeklaration 1(Income tax) page, click the "Bilagor" link
Then add the enclosure "Försäljning av värdepapper m.m. (K4)"
Click the "Övriga värdepapper, andra tillgångar (kapitalplaceringar t.ex. råvaror, kryptovalutor) m.m" link.
Then fill in all your purchases and remember to separate profit and loss into two different columns. (It is only possible to fill in integers).
When everything is filled in and finished, go to "Ändra"(Change) and then "Övriga upplysningar"(other information). In that form you will write the exact amount of crypto in decimals that you have sold or lent out.
Check that everything is correct and then send it in.
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