Updated on: October 1, 2025
Currency
USD
Employer Taxes
Federal, Social Security, Medicare, Unemployment, Workers' Compensation
Payroll Frequency
Semi-monthly; weekly for manual workers.
Employee Taxes
N/A
Language
English
Date Format
MM/DD/YYYY
Illinois by the Numbers
Population
12.5 million
GDP
1.02 trillion
Weekly Working Hours
Follows federal law (time and a half for hours worked over 40 in a workweek).
National Holidays
10
Hiring Difficulty Score
N/A
Weekly Working Hours
National Holidays
Leave
Paid sick leave for domestic workers: 1 hour per 40 hours worked, up to 40 hours/year; follows federal FMLA.
Employment Contracts
No state specific requirements. Federal law does not mandate written employment contracts, but specific conditions and exceptions may apply.
Types of Employment
Employees (including Temporary and Part Time workers) and Independent Contractors.
Employment Costs
IC Class Factors
The Common Law test which is a set of guidelines used to determine whether a worker is an independent contractor or an employee. They revolve around how much control is exercised over the worker in the provision of their services to a client/customer by considering 20 factors in three key areas: financial, relationship and behavior.
Labor Leasing
No labor leasing license is required.
Minimum Wage Requirements
Medical Benefits
Follows federal ACA requirements; additional state mandates for specific coverage.
Probationary Periods
No specific state regulations; employer discretion.
Termination Notice
Employment is at-will, meaning no notice is required for termination; however, the WARN Act applies for mass layoffs, requiring a 60-day notice.
Severance
No mandatory severance pay.
Pre-hire Checks
Ban-the-box. Drug testing must follow state procedural guidelines.
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