The person or company that hired you should send you IRS Form 1099-MISC Miscellaneous Income. 1099-MISC forms should be sent out, by the person or company that hired you, on or before January 31, 2017.
If you do not receive form 1099-MISC, you still need to report your income.
To enter your self-employed income:
https://ttlc.intuit.com/replies/4801198