Please see this FAQ on how to enter foreign income:
https://ttlc.intuit.com/replies/3290703
If you received income from a foreign company then all you have to do is enter the income in the Foreign income section.
If your foreign income was reported on a W-2 then ensure that you put a checkmark next to "Worked outside the U.S. - I worked outside the U.S. for an employer that wasn't the U.S. government or its agencies" on the "Do any of these uncommon situations apply to this W-2?" screen.
If you have self-employment income then you will need to enter the income and expenses in the Self-employment Section first before going to the foreign section.