I'm told this is more usual than you might think: companies invest in new equipment/premises/whatever knowing they don't have the money, and then try to save it by paying their staff late. If you don't stand up for your rights he'll keep treating you like slaves. It's likely that he's going to reply with the "Oh I know it's not right paying you guys late, but I justs didn't wantto have to let any of you go so I didn't have a choice". I've heard that one used before - guilt-tripping you and threatening you at the same time that he's going to start laying people off if you all insist on getting paid on time.