Entries on Form 1099-G, Box 6 Taxable Grants (this covers certain government payments) are generally reported on Form 1040, Line 21. If the item relates to an activity for which you are required to file Schedule C, E, or F or Form 4835, report the taxable amount allocable to the activity on that schedule or form instead.
To make this entry on Form 1040, Line 21:
If there is a Federal income tax withheld amount in Box 4 of the 1099-G, this amount would need to be entered during the Unemployment compensation portion of the Q&A as there is not a section for this in the other income section: