Bitcoin income December/January mix up. Help
Hi there everyone. I really need some help doing my taxes this year. So I made some extra income by buying bitcoin. 15k dollars to be exact. I sold in about a month in December. Now its January and I've unfortunately lost 5k of those 15k. Am I supposed to still report the full 15k gain or can I reduce that to 10k since I lost 5k weeks after the gain. Thank you for your help!