Coinbase did not give me a 1099-MISC because income was less than $600. I am supposed to enter this in line 21 of form 1099. How can I do that with TurboTax Online ?

Please clarify where this is supposed to be entered.

As per the instructions from Coinbase, I am to report the amount on line 21 of form 1040.  No 1099-MISC was issued. 

This are the instructions form Coinbase

The instructions to enter on Line 21 of Form 1040 are incorrect.

Here are instructions to enter Miscellaneous income:

To enter Other Income, please follow the steps below:

1. Open your return.
2. Click on Federal Taxes.
3. Go to Wages & Income
4. Scroll to the bottom under Less Common Income select Start (or Update) for Miscellaneous Income.
5. Choose the appropriate category and enter your Other Income

@dizarra 

Thank you!  I was able to report the amount following the steps you shared