Illinois campaign expenditures
- Publisher:
- (old) Illinois State Board of Elections
- Start Date:
- 1999
- End Date:
- 2026
- Record Count:
- 3,391,996
Collection: Money in politics
Description: Illinois expenditures data was obtained from the Illinois State Board of Elections bulk campaign disclosure data files. Data is available from 1999 on and has been updated through Oct. 12, 2026. Expenditures listed on reports that were later replaced by amended reports are excluded.
Each record is a single campaign expenditure made to an outside vendor for goods or services. The full data files contain all original columns. New columns with normalized data are used for searches. Data processing was done using open-source software and is documented on the Accountability Project GitHub repository.
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