I am confused as how I can fill in this statement if I cannot see the sheet where the statement is being required from. Am I missing something or is there a way I can see Form 1116 prior to filling this out? It won't let me move past my review so can't get to the file and pay without filling this in.
Line 3b of Form 1116 is used for deductions not related to your foreign source income.
Line 3a is used for most itemized deductions and 3b is used for Schedule 1 deductions like student loan interest, self-employed health insurance, IRA deduction, alimony paid, educator expenses, etc.
If you are using TurboTax Desktop (from a disc or download), you can click on the white Forms icon in the upper right corner. Highlight Form 1116 in the left column and you can see the form in the reading pane.
In TurboTax Online if you have paid, you can generate a PDF of your tax return from the Print Center: