Question
I traded crypto in 2018 2019 2020and 2021 I have 2 missing cost basis transactions for my capital gains reportone is for the year of 2019 and one is for the year of 2021
My capital gains are much higher than I expected , like exponentially higher, and the missing cost basis is saying a nice size of BTC I acquired is missing and unaccounted for but all my trading data has been imported, would the 2019 missing cost basis transaction effect my returns for 2020 tax return?
