MORE ON CAPITAL GAINS AND LOSSES FOR CRYPTOCURRENCY TRANSACTIONS
Firstly, cryptocurrency activity MUST be reported as income whether or not you received a Tax Form from the service that you are using.
Secondly, in the case you did NOT receive a Tax Form, and you cannot secure one from your service provider, then you must use the transactions history (usually a csv file) to establish the basis and the proceeds of each selling transaction to determine if it is either a gain or a loss. In addition you will need to record the dates to determine if the transaction is either short-term or long-term.
Lastly, there are some crypto aggregator services or other services in general, that will actually construct/generate for you a Tax Form Proxy. Just verify that the data being entered is accurate so that you may have an accurate Tax Form.
There are a couple ways you could actually do this on your taxes. You can use a crypto tax service such as CoinTracker or CryptoTaxCalculator and connect all of your accounts, including their BTC address. You can then use the software to adjust their data to reflect your activities. Then you can download the tax forms from those providers and upload the CSV into TurboTax. Or, you could create an Intuit Format Crypto CSV of all of your transactions and manually build the form to reflect an accurate depiction of your activities.
