Get your taxes done using TurboTax

You could try searching on the Coinbase website for their company information.

OR

You could just enter the income in your return as Other reportable income, using these steps:

1. Click on Federal > Wages & Income   
2. In the Less Common Income section, click on the Start/Update box next to Miscellaneous Income, 1099-A, 1099-C.  [See Screenshot #1, below.]
3. On the Miscellaneous Income screen, click on the Start/Revisit box next to Other reportable income.  [Screenshot #2]
4. On the Any Other Taxable Income? screen, click the Yes box.
5. Enter the income on the Other Taxable Income screen, along with a description.  Click Continue. [Screenshot #3]
6. You will be brought to the Other Miscellaneous Income Summary.  If you have no more miscellaneous income to report, click Done.