What could other tax withholding be? Shows $305 other tax withholding that is not part of my federal income tax withheld. How do I find out what this is?

[MarilynG1]

If you're using TurboTax Online, when you View/Print/Save your return as a PDF, look for the Tax Payments Worksheet.  This shows the taxes paid on your return for both Federal and State, and the source document (such as W-2, 1099-R, etc.).

Or, in the left-side menu, go to Tax Tools > Tools, then choose View Tax Summary from the pop-up menu.  Back at the left-side menu, choose 'Preview My 1040' and scroll down to Line 25 to see Federal Tax Withheld.

In TurboTax Desktop, go to FORMS and Open Form 'Tax Payments Worksheet' to view the form.

@barrykliewer