527 Expenditures

Publisher: Internal Revenue Service Start Date: 2001 End Date: 2018 Record Count: 1,101,905

Collection: Money in politics
Description: Spending by 527 organizations. Updated April 25, 2019.

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Additional Notes: There's not a clear start date to this dataset. It is an export of all 527 reports received electronically, however, not all organizations file their reports electronically. The earliest reports date from 2001.