To determine your basis in virtual currency purchased with real currency, your basis (also known as your "cost basis") is the amount you spent to acquire the virtual currency, including fees, commissions, and other acquisition costs in U.S. dollars. Your adjusted basis is your basis increased by certain expenditures and decreased by certain deductions or credits in U.S. dollars. For more information on basis, see Publication 551, Basis of Assets.
Sources:
Rev. Rul. 2019-24
Notice 2014-21
Publication 544 (2023)
