Annual Reports 2022-2023 Annual Report PDF 2021-2022 Annual Report PDF 2020-2021 Annual Report PDF Past Reports:2020 Annual Report2019 Annual Report2017-2018 Annual Report2015-2017 Biennial Report2014-2015 Annual Report2013-2014 Annual Report FLOW is a 501(c)(3) nonprofit; FLOW’s federal tax ID (EIN) is 45-4370935.