Independent payroll-schedule reference · Updated July 2026 Methodology · Submit a correction

What "headquartered in Illinois" actually means for your paycheck

Pay frequency is governed primarily by the state where the employee physically works, not where the employer is incorporated. A company headquartered in Illinois may run separate payroll calendars for staff in California, New York, or Massachusetts to comply with state-specific cadence floors. That said, the largest multi-state employers — including those listed below — typically adopt a single uniform payroll cadence across all locations to simplify administration. The most common simplification is to default to whichever cadence satisfies the strictest state minimum.

For the official state-by-state payday-requirement reference, see the U.S. Department of Labor's payday-requirements table and the NCSL summary of state payday laws. These are the canonical references HR teams use when designing multi-state payroll calendars.

Why a biweekly schedule appears here

A biweekly payroll schedule pays employees every other week, producing 26 paychecks per year. Two months out of the year contain three paydays. Biweekly is the single most common cadence in the United States and is standard for salaried employees at most large industrial, healthcare, and consumer-products employers.

Among the Illinois-headquartered employers in PayPeriod Hub, the biweekly cadence appears most often at companies whose workforces concentrate in a balanced blend of hourly operations staff and salaried professionals. The pattern reflects industry structure more than state law.

All 12 Illinois employers paying biweekly

CompanyIndustryPaydayCityEmployees
AbbVie Healthcare & Pharma Friday North Chicago 50,000
Abbott Laboratories Healthcare & Pharma Friday Abbott Park 114,000
AptarGroup Industrial Manufacturing Friday Crystal Lake 13,000
Baxter International Healthcare & Pharma Friday Deerfield 60,000
CF Industries Chemicals Friday Northbrook 3,000
Dover Industrial Manufacturing Friday Downers Grove 25,000
Illinois Tool Works Industrial Manufacturing Friday Glenview 45,500
John Deere Industrial Manufacturing Friday Moline 82,239
Olin Brass Industrial Manufacturing Friday East Alton 1,200
Packaging Corporation of America Industrial Manufacturing Friday Lake Forest 15,400
Stepan Chemicals Friday Northbrook 2,400
Walgreens Boots Alliance Healthcare & Pharma Friday Deerfield 311,000

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