The best way to confirm this is to check it manually against your transaction record. It may be more cumbersome but it's better in the long run. To make it easier for you, you can follow the guideline below: 1. Check if the import contains all the wallets, exchanges, and blockchains that you have interacted with 2. Check if there are big transactions that are non-taxable, such as internal transfers 3. Check if the right labels are attached for withdrawals and deposits. Labels include gifts, airdrops, forks, pools, etc.  4. Preview it one more time.