While it is possible to legally babysit without a license, there are stipulations regarding the amount of children that can be in a home for babysitting purposes during one time. Babysitting regulations vary from state to state.
According to the Startup Biz Hub, there can be up to six children in a home at one time before a license needs to be obtained.This may vary slightly depending on the state. When babysitting children who are from more than one family, a license is required. The Department of Social Welfare in each state will state how many children are allowed in a home at one time.