I wish Lacerte did automate this.  I think there's a reminder info diagnostic tho about putting in the date if a penalty applies?

If the penalty is small - I use Jeff's CAGMC philosophy.  Let the IRS find it - altho I will let the client know to expect the possibility.  I do a lot of annualizing to mitigate penalties so it's more on my radar to de the "1" & "1" two-step to get the amounts to populate.