Taxation of Employee Benefits: Illinois
Federal law and guidance on this subject should be reviewed together with this section.
Author: Vicki M. Lambert, The Payroll Advisor
- Same-sex marriage has been legal in Illinois since June 1, 2014 and the value of health benefits provided to an employee's same-sex spouse, and any of their dependents, are tax free. The same applies to same-sex civil unions, but not for federal income tax purposes. See Same-Sex Couple Health Insurance Benefits.