Sugar is included in the carb count on a nutrition label...
...then the carb count is broken down into sugar, fiber, and sugar alcohols on a nutrition label. If you are concerned about sugar, take your total carbs and subtract the fiber--this will usually be your sugar. It's not perfect, but it might help you.
I count carbs, not calories, but I do NOT need to know how much sugar something has in it--if it has added sugar, I don't eat it. I would like to know how much sugar alcohol something has--sugar alcohols do not affect your glucose levels and I can eat those. Since net carbs are total carbs minus fiber and sugar alcohol, I enter the sugar alcohol in the alcohol part of the label.
At the end of the day, I subtract fiber and alcohol from my total carbs to find my net carbs. I only drink alcohol once or twice a year, so this works for me.