The threshold amount is for gross contribution revenue below which the organization may be excepted from registration requirements. The gross contributions revenue is calculated from not just contributions raised in the one state, but through all the organizations' solicitation activities. In many states, the threshold exception does not apply if the solicitation activities are conducted by anyone other than volunteers. Another common exception is for organizations that only solicit their own members. Professional solicitors are typically required to register, without exceptions.
Many states exempt certain types of nonprofit organizations, such as schools and churches.
Special Topic Compilations Compilations of state laws addressing various special topics are listed here. These have been created in the course of researching topics for other papers at this site, or to aid various online discussions. The Unified Registration Statement kit's capsule summaries of state registration requirements provides very succinct information about most states' requirements for the initial registration of charities that solicit donations. The URS kit also includes summaries of the annual reporting requirements for these states. Note that this resource omits the seven states that don't accept the URS but require charities register.