Good question. What type of payment was this? Are you sure it could not just be another estimate payment?

Definitely not an Estimate.  Additional payments made in response to a Notice.  The problem is the return needs to be amended, and the taxpayer wants the over-payment applied to current-year estimates.  If the payment isn't reported on the 1040, Lacerte generates an error due to the 1040 reporting an amount owed and an amount applied to estimates.  Support says there's no way to generate a 1040 line 73 D amount with "Tax" as a description - They suggested plugging an IRC 1341 amount and then manually editing the printed form.

"Support says there's no way to generate a 1040 line 73 D amount with "Tax" as a description"  Support is clueless.

You say you are amending. How about screen 59, down at the bottom Amt paid w/original & tax paid after filing (63 less) 

Screen 59; Code 36

Agree with George that would be correct line to use and I think George meant Line 16 (instead of 15).

You betchum! Line 16 (give or take)

As George says, you'd use Line 73 Box d under very limited circumstances.  If you must, try Screen 38.2.

Thanks for the response.  The problem is there doesn't appear to be anywhere to enter a 73 Box D amount unless you want the entry labeled as a IRC 1341 - which is not consistent with the instructions to the form.