Update 3/15/2021: This Binance.com file import method has known limitations that can effect a percentage of users due to the way Binance is exporting user data. If your import fails, please refer to this help guide.
Hover your mouse over "Wallet" and select "Order" from the dropdown.
Click the "Transaction History" link located near the top-right section of the page.
Click "Generate all statements"
Use the following settings to generate a transaction history report for each year. Binance allows you to export a max of 1 year at a time so double check your dates before clicking the Generate button.
Be sure to generate a report for ALL years you have used Binance.
Wait for the report to finish generating (this can take a few hours). After it is done, click the Download link on this same page.
Binance will save a tar.gz file in your downloads folder. You will need to unzip this twice to get the CSV file containing your transactions.
Navigate to the Binance tab on CryptoTrader.Tax and drag your CSV file into the blue box to import your transactions.