The net profit after all expenses and overhead for a tier III dealer (over $1,000,000 annually) is about a 2-3 percent margin. tier I dealers ( under $500,000) have a much higher profit margin. he may be a tier II dealer ($500,000-1,000,000) trying to reach tier III status. The tier II to tier III level has to be completed within about 12-18 months or you go belly up.