I have filed my return. How can I see the detail for the amount listed on line 29 of schedule 1?

[VolvoGirl]

It can come from
Your entries
SSA-1099 Social Security Medicare Deductions
And any Marketplace premiums you paid or subsidies you had to pay back.

[DoninGA]

When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.  See screenshot

This will take you back to the 2018 online tax return.

Click on Tax Tools on the left side of the online program screen.  Then click on Print Center.  Then click on Print, save or preview this year's return.  Choose the option Include government and TurboTax worksheets