Form 8949:You may need to complete Form 8949 to report any capital gains or losses. Be sure to use information from the Form 1099-B you received. If you receive a Form 1099-K, be sure to report both your basis and your gains and losses for your cryptocurrency transactions on Form 8949...
Form 1099-Bshows proceeds from securities transactions. Use the information on Form 1099-B to fill out IRSForm 8949. If you have an account at a brokerage or mutual fund company, the Form 1099-B you received could report a single or multiple transactions. ...