I am amending my 2023 Tax return. Is there a way to see what contributed to the change in 1040-X line 10: "Other taxes"?

[alfred6]

I'm using the desktop version. The only thing I added was a 1099R form, that has federal tax witholding along with taxable amounts. The net change on that line, column B, doesn't match any dollar values from my 1099R form.

[JohnB5677]

Box 10 of the 1040-X is Other taxes.  This is shown on Schedule 2 Line 21.

Check this form in your amended tax return.