In May 2001, 19.8 million persons usually did some work at home as part of their primary job. These workers, who reported working at home at least once per week, accounted for 15 percent of total employment.
A little over half of those who usually worked at home were wage and salary workers who took work home from the job on an unpaid basis. Another 17 percent had a formal arrangement with their employer to be paid for the work they did at home. The remainder who worked at home—30 percent—were self-employed.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Working at home at https://www.bls.gov/opub/ted/2002/mar/wk1/art01.htm (visited September 23, 2023).