The IRS returned my 2024 return asking to substantiate the amount on line 25 D. Can't find a 1099 with that amt. How can I find out the name of 1099 that it came from?

[pbelz]

Is there a way that I can access the source of the entry on line 25B through Turbo Tax. Line 25d sums only one entry on 25 B.

[baldietax]

you'd need to check the PDF of your return with "all forms and worksheets" which has the 1099 details, or refer back to the original 1099s

(you should be keeping all these for your records and not relying on going back to Turbotax)

[baldietax]

also for more info refer to the "Tax Payments Worksheet" which will break down the withholding by form type.

If you are on desktop in Forms mode you can double click through that 1040 line to the worksheet and may be able to click through from there to the 1099 with the withholding.