1040 line H not accepting input

[MPomer]

What 1040 worksheet feeds input to line H

[DoninGA]

The US Federal Tax Return, Form 1040, does not have a Line H - https://www.irs.gov/pub/irs-pdf/f1040.pdf

What form, federal or state, are you referring to?

[rjs]

Are you using TurboTax Online or the desktop TurboTax software? The tag below your question says TurboTax Online, but you cannot make entries directly on a form or worksheet in TurboTax Online. Are you using forms mode in the desktop TurboTax software?