Justice is Not For Sale Act of 2021 This bill prohibits private for-profit entities from operating confinement facilities (e.g., prisons) or providing electronic monitoring of released persons at the federal, state, and local levels. The bill also establishes various requirements related to the standards of detention and availability of services at confinement facilities. The bill provides for the establishment of limits on the fees and charges for financial services (e.g., money transfer services), caps on the rates charged for communications services, detention standards and oversight requirements related to the detention of noncitizens, and community-based alternatives to the detention or separation of family units apprehended under immigration authorities.