It's been a while, but I worked at a bar after college for a while. We had to fill out a slip every night for the tips we made - both cash and by credit card. Of course the cash tips may not have been accurate

All of our taxes were taken out of our check for hourly wages that we got every two weeks; Federal, FICA, Social Security. We were allowed to walk with our tips each night (cash and credit card), as a courtesy I guess. Most times our paychecks were very small as all of our taxes were taken out by our employer. And this was a hole in the wall dive bar at best. We're not trying to get him out of paying his taxes, he's just bummed and shocked that he will have to pay a pretty good lump sum. I've since found out that my nephew and his co-workers have not filled out any such tip sheets or reports. I'm shaking the tree over there a bit as their first explanation was: He claimed "4" on his W-4. He's single with no kids. They sent him a scan of his W-4 to prove their claim. A couple of weird things that I noticed from it: it has 2 different colors of ink on it and, it is dated 4 months after he started... Still working on it, but something to me seems a bit shady over there. It's a pretty good spot for him, so he wants to stay. He makes really good money working only 3 nights per week. So, in the mean time, I'm having him and his co-worker help/watch the counting of the money at the end of the night and recording his amounts each night for himself.