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Employment Contracts and Restrictive Covenants: Illinois

Employment Contracts and Restrictive Covenants requirements for other states

Federal law and guidance on this subject should be reviewed together with this section.

Authors: Stuart R. Buttrick, Susan W. Kline, Stacey Smiricky, Lindsey M. Hogan and Taylor L. Haran, Faegre Drinker Biddle & Reath LLP


  • Illinois permits employees and employers to enter into contracts, so long as the contracts are not illegal or unreasonable. See Employment Contracts.
  • Illinois enforces restrictive covenants, so long as the agreements are reasonable. See Restrictive Covenants.
  • Information meeting the requirements of a trade secret under Illinois law may be protected, and employers that have their trade secret information unlawfully acquired may be eligible for certain damages. See Trade Secrets.