Illinois mixes a large Chicago labor market with downstate manufacturing, logistics and farm employers, and each group meets the same state rulebook. The statewide minimum wage is $15.00 an hour for adults, while Chicago sets its own higher floor.
Payroll teams also deal with unemployment insurance on the first $14,250 of 2026 wages, paid leave, workers’ comp, and a state law on employee leasing. Choosing an Illinois PEO means checking how it handles IDOL rules, IDES reporting, IDOR withholding, and that leasing law.
Why Illinois Employers Choose a PEO
Illinois treats coemployment differently from many states. The Employee Leasing Company Act governs ongoing employee leasing and separates it from temporary help. It ties registration and workers’ comp to the Illinois Department of Insurance (IDOI). The IDOI fee schedule lists the Employee Leasing Company Registration at $1,000. Before you sign with any PEO Illinois firm, ask which legal entity will be your coemployer.
The Illinois Department of Labor (IDOL) sets day-to-day pay rules. Adults earn at least $15.00 an hour, and overtime starts after 40 hours a week at 1.5 times the regular rate. Under the Paid Leave for All Workers Act (PLAWA), staff earn up to 40 hours of leave a year for any reason. Employers with 15 or more staff must post pay scales and benefits in job ads. A PEO in Illinois also has to track Chicago and Cook County rules on top.
INSIGHT: What does an Illinois PEO have to get right?
Compliance here spans the leasing structure and routine payroll duties. A provider must get the legal model and the recurring state filings right.
- $15.00 statewide minimum wage for workers 18 and older (IDOL).
- Up to 40 hours of paid leave a year, earned at 1 hour per 40 worked (IDOL).
- New hires reported to IDES within 20 days of the first day on payroll (IDES).
- Employee Leasing Company Registration fee of $1,000 (IDOI).
The tax side runs through 2 agencies. The Illinois Department of Revenue (IDOR) sets income tax at a flat 4.95%, reported on Form IL-941. The Illinois Department of Employment Security (IDES) collects unemployment insurance (UI) on the first $14,250 per worker. Wages go on the quarterly UI-3/40, and employers with 25 or more staff also file monthly reports online. New hires are due within 20 days. An Illinois payroll service has to cover all of this. Whether UI runs under the PEO’s account depends on the state’s leasing tests, not on the sales pitch.
Insurance and benefits push many employers toward coemployment. The Workers’ Compensation Commission (IWCC) requires coverage even for 1 part-time employee. Retirement is the other duty. Firms with 5 or more Illinois staff each quarter last year, 2+ years in business, and no qualified plan must join My Illinois Savings. Until its June 2026 relaunch, the program was called Illinois Secure Choice. PEO services in Illinois often bundle a 401(k), benefits administration, and workers’ comp in one contract.
INSIGHT: What changed for Illinois employers in 2026?
The state wage floor held at $15, but UI, retirement savings, and leave rules all changed during the year.
- UI taxable wage base of $14,250 for 2026 (IDES).
- State Experience Factor of 102%, down from 114%, and a 0.550% Fund Building Rate (IDES).
- Illinois Secure Choice relaunched as My Illinois Savings, with a new portal from June 15, 2026 (State Treasurer).
- NICU leave from June 1, 2026: up to 10 days at 16 to 50 employees, 20 days above (IDOL).
Labels like PEO, ASO, and HRO get mixed up in sales calls, so separate them early. A full PEO for Illinois uses coemployment and can bundle payroll, benefits, workers’ comp, and HR; you still direct the work. If you want the basics first, see my guide on what a PEO is.
A payroll service runs pay and tax filings without a leasing relationship. An ASO or HRO model adds HR administration without coemployment, and temporary staffing falls under a separate category under leasing law. The IRS Certified PEO (CPEO) list is one more federal signal worth checking.
My shortlist covers 15 providers active in the Illinois market, from DuPage County boutiques to national platforms with Chicago offices. Several Illinois PEO companies on this list started in the western suburbs. Readers comparing out-of-state platforms can use my best PEO companies roundup.
Top 15 PEO Companies in Illinois
3 questions narrow this list fast. Should one firm carry benefits and workers’ comp as co-employer, or do you only need pay runs and tax returns? Your answer separates the PEO companies in Illinois below from the payroll and staffing firms.
Next, does the provider know Illinois leasing rules, PLAWA, pay transparency, UI reporting, and Chicago ordinances? Finally, think about headcount and industry. Pricing, benefits, and workers’ comp risk all shift with size.
My criteria were accurate Illinois payroll and IDOR and IDES filings, the workers’ comp model, benefits and retirement options, and state and local compliance help. I also checked the legal model and any CPEO or accreditation claim against public records.
Pricing clarity mattered too, because PEO companies Illinois employers consider rarely publish their fees. Where a provider does, I show the figure.
All fifteen providers appear in A-to-Z order. The sequence says nothing about quality, preference, or ranking.
AccessPoint
Provider Type:
PEO and recruiting, part of Vensure Employer Solutions
Company Description:
AccessPoint is a PEO in the Vensure Employer Solutions group with service centers in Grand Rapids and Traverse City, Michigan. It offers full-service HR outsourcing plus direct-hire recruiting for hospitality, manufacturing, health care, and nonprofits.
Key Specialty Area:
Full-service HR outsourcing with direct-hire recruiting
Service Cost:
Quote-based
Top Advantages:
- Recruiting and PEO services from a single provider
- Industry programs for charter schools and franchises
- Free online HR health test for prospects
Scope of Services:
- Payroll and benefits administration
- Risk and compliance support
- HR management team and direct hire
Our Verdict
I would ask AccessPoint how it serves Illinois clients from Michigan before signing, since it lists no Illinois office.
AllStaff
Provider Type:
Staffing company, Gurnee
Company Description:
AllStaff is a Gurnee-based employment company with 50+ years in staffing and Illinois branches from Chicago to Elgin and Aurora. It places temporary, contract, temp-to-hire, and direct-hire staff; its site does not describe coemployment.
Key Specialty Area:
Temporary and direct-hire staffing across northern Illinois
Service Cost:
Quote-based
Top Advantages:
- 9 Illinois branches plus Kenosha, Wisconsin
- Light and skilled industrial talent pools
- Screening and onboarding built around client policies
Scope of Services:
- Administrative and clerical staffing
- Light and skilled industrial staffing
- Direct-hire recruiting for permanent roles
Our Verdict
AllStaff suits seasonal or project labor in my view; the leasing law treats temporary help separately from a PEO.
Amplify HR Management
Provider Type:
PEO, Northbrook
Company Description:
Amplify HR Management was formed in Chicago in 2017 and is headquartered in Northbrook. It runs coemployment for small teams through enterprises, and the company says it has processed over $5.6 billion in payroll.
Key Specialty Area:
Responsive PEO for growing suburban employers
Service Cost:
Quote-based, with an online ROI calculator
Top Advantages:
- IRS-certified as Amplify HR Management, LLC since 2025
- Plans built for small teams up to enterprises
- Says most new clients switch from larger national PEOs
Scope of Services:
- Payroll and tax administration
- Employee benefits and HR support
- Compliance guidance and risk support
Our Verdict
I would shortlist Amplify for a north-suburban company leaving a national PEO and wanting a local team.
Benlocity
Provider Type:
Benefits-led HR and PEO provider, Chicago office
Company Description:
Benlocity is a benefits-focused provider with a Chicago office for the Midwest and a distribution base in Rockville, Maryland. It sells benefits, HR, and payroll plans, and its top plan adds PEO coemployment.
Key Specialty Area:
Benefits administration with optional PEO coemployment
Service Cost:
From a $62.50 base fee plus $2 per employee per month (Effortless package), with a $50 setup cost
Top Advantages:
- Enrollment team of 1,000+ counselors, per the company
- HR software platform offered at no cost in some plans
- Voluntary benefits available without employer cost
Scope of Services:
- Benefits administration, ACA and COBRA
- Payroll, time and attendance
- PEO coemployment and HR management
Our Verdict
Benlocity fits employers that care most about benefits enrollment and want to add coemployment later, I think.
*As pricing is subject to change, we are listing prices as they stand in October 2026
Chamberlain Advisors
Provider Type:
Talent acquisition and staffing firm, Chicago
Company Description:
Chamberlain Advisors is a Chicago talent acquisition firm founded in 2016, based on South Wacker Drive. It offers direct-hire search, contract staffing, and recruitment process outsourcing; its site does not describe a PEO service.
Key Specialty Area:
Recruiting, contract staffing, and RPO
Service Cost:
Quote-based
Top Advantages:
- Retained, contingent, and direct-hire search options
- Contract and contract-to-hire staffing
- Fractional talent acquisition leadership for hiring surges
Scope of Services:
- Direct-hire and executive search
- Contract and contract-to-hire staffing
- Recruitment process outsourcing for hiring programs
Our Verdict
I would bring in Chamberlain for hard-to-fill technical roles, then pair it with a separate PEO or payroll provider.
Employ Source
Provider Type:
Boutique PEO, Naperville
Company Description:
Employ Source is a Naperville firm offering full PEO service or stand-alone modules. It is one of the boutique payroll services Illinois manufacturers use, and a NAPEO member since 2017.
Key Specialty Area:
Boutique PEO with à la carte modules
Service Cost:
Quote-based
Top Advantages:
- Every service available stand-alone or bundled
- Online portals for onboarding and benefits enrollment
- Staffing support from the same team
Scope of Services:
- Payroll processing and payroll tax filing
- HR, compliance, and benefits
- Workers’ compensation and risk management
Our Verdict
My pick for a DuPage County manufacturer that wants to start with payroll and add PEO services later.
Employco USA
Provider Type:
PEO, Westmont
Company Description:
Employco USA is a Westmont PEO marking 30 years in 2026. It acts as an employer for administrative purposes while clients run the worksite. It is also a payroll service Illinois trade show contractors know through its EACA role.
Key Specialty Area:
Payroll, benefits, and workers’ comp with group buying
Service Cost:
Quote-based
Top Advantages:
- Pay-by-pay workers’ comp to ease cash flow
- Job costing and union reporting in payroll
- Official payroll provider for EACA and ESCA
Scope of Services:
- Payroll with deductions and tax reports
- Benefits including ACA-approved plans
- Workers’ comp, risk, and HR assistance
Our Verdict
Employco makes sense to me for union or trade show contractors that need job costing in payroll.
EvolveHR
Provider Type:
PEO serving businesses nationwide
Company Description:
EvolveHR is a PEO founded in 2006 in St. Petersburg, Florida, and acquired in 2022. It serves growing companies nationwide and adds project-based organizational development consulting to payroll, benefits, and HR.
Key Specialty Area:
PEO plus organizational development consulting
Service Cost:
Quote-based
Top Advantages:
- Reports a 2026 NPS of 92 and 98% retention
- Organizational development projects beyond core HR
- Inc. 5000 listings in 2024, 2025, and 2026
Scope of Services:
- Payroll processing and benefits services
- Risk and liability management
- HR consulting and HR technology
Our Verdict
I would consider EvolveHR for a fast-growing company that wants culture and structure work alongside payroll.
Idilus
Provider Type:
PEO, ESO, and ASO provider, Warrenville
Company Description:
Idilus is a Warrenville employer services firm in business since 1999. It offers PEO, ESO, ASO, and HRO models, and its Illinois payroll services run on the isolved platform with consolidated tax filing for most clients.
Key Specialty Area:
Flexible employer services models on isolved
Service Cost:
Quote-based
Top Advantages:
- 4 service models, from PEO to custom HRO
- Pay-as-you-go workers’ comp and 401(k) administration
- Unemployment cost control inside payroll
Scope of Services:
- Payroll, tax filing, and time tracking
- Benefits administration and COBRA
- HR outsourcing, risk and compliance
Our Verdict
Idilus suits a western-suburbs employer that wants to pick its level of coemployment, in my view.
MidwestHR
Provider Type:
PEO with an ASO option, Woodridge
Company Description:
MidwestHR was founded in 1997 and has offices in Woodridge and Chicago. It serves companies with 5 to 1,000 employees under PEO or ASO models and says it became an IRS CPEO in 2017.
Key Specialty Area:
PEO and ASO for 5 to 1,000 employees
Service Cost:
Quote-based, with services chosen à la carte
Top Advantages:
- Workers’ comp through a master or individual policy
- No long-term contracts, per the company
- Both PEO and ASO models available
Scope of Services:
- Payroll and tax administration
- Employee benefits and retirement services
- HR outsourcing and workers’ compensation
Our Verdict
I could not match MidwestHR to the current IRS list, so I would request its CPEO certificate before relying on it.
OneDigital PEO
Provider Type:
PEO within a national benefits and insurance firm
Company Description:
OneDigital runs its PEO under the Resourcing Edge name and has an Illinois office in Elk Grove Village. It pairs PEO services with benefits consulting, insurance, and retirement plans for over 100,000 clients overall.
Key Specialty Area:
PEO backed by national benefits consulting
Service Cost:
Quote-based
Top Advantages:
- IRS-certified Resourcing Edge entities run the PEO
- Multiple medical, dental, and vision plan options
- Insurance and retirement advice from the same firm
Scope of Services:
- Payroll and HR support
- Employee benefits administration and enrollment
- Risk, compliance and connected HR technology
Our Verdict
My pick for an Illinois employer that wants its PEO, insurance broker, and retirement adviser under one roof.
PEO 4 ME
Provider Type:
Benefits access program for small groups
Company Description:
PEO 4 ME gives small groups health benefits through the CSJB Health and Welfare Trust Fund, on a BCBS of Illinois network. Groups need 5 or more enrolled members. Groups with established payroll can join for benefits only.
Key Specialty Area:
Pooled health benefits for groups of 5+
Service Cost:
Base medical rates from $1,010 a month for employee-only coverage ($880 health and welfare, $100 admin, $30 union dues)
Top Advantages:
- Medical, dental, vision, accident, and $25,000 life coverage
- Groups can keep their existing payroll setup
- Waivers allowed with proof of other coverage
Scope of Services:
- Group medical through a union health and welfare fund
- Dental, vision, life, and accident benefits
- Employee assistance program and telehealth
Our Verdict
I see PEO 4 ME as a benefits route for small groups, not a full payroll and coemployment service.
*As pricing is subject to change, we are listing prices as they stand in October 2026
Prioritas
Provider Type:
Coemployer formerly known as Staffing Plus, Woodridge
Company Description:
Prioritas is a Woodridge PEO, formerly Staffing Plus, serving businesses nationwide since 1998. It acts as a coemployer for payroll, HR, benefits, and risk, and its payroll service includes certified payroll reports.
Key Specialty Area:
Coemployment with certified payroll capability
Service Cost:
Quote-based
Top Advantages:
- Certified payroll for public works contractors
- Recruiting, screening, and drug testing in-house
- Unemployment claims and IRS audit support
Scope of Services:
- Payroll, tax filings, and year-end reporting
- HR, handbooks and employee relations
- Benefits management and risk management
Our Verdict
Prioritas is the one I would call for a contractor that needs certified payroll on prevailing-wage jobs.
Staff Management, Inc.
Provider Type:
PEO, Rockford
Company Description:
Staff Management, Inc. is a Rockford PEO founded in 1983 by John and Fran Morrissey. It serves the Illinois-Wisconsin stateline region and belongs to a family group that includes an accounting firm.
Key Specialty Area:
Family-owned PEO for the stateline region
Service Cost:
Quote-based
Top Advantages:
- IRS-certified PEO effective January 1, 2017
- Accounting expertise from a sister firm
- Time clocks, biometric devices and web entry
Scope of Services:
- Payroll, withholding and quarterly reporting
- Employee benefits management and enrollment
- HR administration, risk management and consulting
Our Verdict
For a Rockford or Winnebago County business, I see Staff Management as a long-established local option.
Tandem HR
Provider Type:
PEO, part of Vensure Employer Solutions
Company Description:
Tandem HR was founded in 1998 by Chicago benefits consultant Bruce Leon and joined the Vensure Employer Solutions family in 2024. It offers payroll, benefits, HR, risk management, and its PeopleHub portal.
Key Specialty Area:
Midwest PEO with benefits brokerage roots
Service Cost:
Quote-based
Top Advantages:
- BBB-accredited since 2018 with an A+ rating
- PeopleHub portal for managers and staff
- Benefits orientation and onboarding support
Scope of Services:
- Payroll administration and tax compliance
- Benefits management and HR support
- Risk management and safety audits
Our Verdict
Tandem calls itself an IRS CPEO, but its entities appear on the IRS revoked list from October 2025, so I would ask.
How Much PEO and Payroll Services Cost in Illinois
PEO fees in this state follow 2 patterns. Some providers charge a flat amount per employee per month, others a percentage of gross payroll, and almost all quote after reviewing your census.
An Illinois payroll service is usually cheaper because it skips benefits, workers’ comp, and coemployment. You get pay runs, IL-941 filings, and IDES reports, but you keep HR and insurance.
Inside the PEO fee, you normally get payroll, tax filing, benefits and workers’ comp administration, and HR help. Outside it, expect insurance premiums, retirement plan charges, onboarding, and one-off projects. When comparing payroll services in Illinois, line up the full invoice.
No vendor can discount the statutory layer. It includes federal payroll taxes, UI on the first $14,250 of each worker’s wages at your IDES-assigned rate, and workers’ comp premiums. Employees also have Illinois income tax withheld at 4.95%.
My Illinois Savings costs employers nothing, but covered firms must run payroll deductions unless they offer a qualified plan. The best payroll services Illinois offers should handle that remittance without extra manual work.
Published prices are rare. Benlocity’s price sheet starts at a $62.50 base fee plus $2 per employee per month. PEO 4 ME lists employee-only medical coverage from $1,010 a month.
*As pricing is subject to change, we are listing prices as they stand in October 2026
INSIGHT: Which filings does an Illinois payroll service handle?
Illinois payroll mixes withholding, UI, and event-driven reports. Confirm which filings the provider submits and under whose account.
- Form IL-941 for Illinois income tax withholding (IDOR).
- UI-3/40 quarterly reports due April 30, July 31, October 31, and January 31 (IDES).
- Electronic monthly wage reports for employers with 25 or more staff in the prior year (IDES).
- New-hire reports within 20 days of the first day on payroll (IDES).
Fee structures vary widely, and percentage pricing can outrun a flat fee as salaries rise. My breakdown of how much a PEO costs compares both models with worked examples.
Some employers want HR help but not a coemployer on their tax filings. My PEO vs HRO comparison explains when an HR outsourcing contract fits better.
FAQs on PEO and Payroll Services in Illinois
What does a PEO in Illinois do?
A PEO in this state usually works through a coemployment or employee leasing arrangement. It handles payroll and tax administration, benefits, workers’ compensation, HR support, and compliance tasks, while you keep directing the daily work. The service agreement and leasing structure determine who handles which duties. Employer liability does not move to the PEO in full. I read the allocation clauses closely before recommending any contract, and I check which entity signs it.
Does a PEO need to register in Illinois?
Yes, in most cases. The Employee Leasing Company Act requires leasing companies to register with the Illinois Department of Insurance, which also oversees the related workers’ compensation rules. The registration fee is $1,000. Ask the provider for the exact legal entity and its registration before signing. This state step is separate from IRS certification, which only covers federal employment tax liability. A national brand may use a different entity in each state.
How much does a PEO cost in Illinois?
Pricing usually arrives as a quote, either a flat monthly amount per worker or a share of gross payroll. The total depends on headcount, industry, benefits, workers’ comp risk, HR scope, and any retirement plan you add. Insurance premiums usually sit on top of the administration fee. I compare the full employer cost for at least 3 quotes, using the same census, before judging which offer is cheaper. Setup fees and minimum monthly charges deserve a line in that comparison too.
Are workers’ compensation and paid leave required in Illinois?
Yes. Workers’ compensation coverage is mandatory for nearly every employer, even one with a single part-time worker, unless the business qualifies to self-insure. Under the Paid Leave for All Workers Act, covered employees earn up to 40 hours of paid leave a year. They can use it for any reason, without explaining why. Chicago and Cook County have their own leave ordinances, so check the rule for each work location. Staff who split time between sites may fall under more than 1 rule.
What is the minimum wage in Illinois in 2026?
The statewide minimum wage is $15.00 an hour for workers 18 and older. Employers may apply the state tip credit to eligible tipped staff. Overtime is due after 40 hours in a workweek at 1.5 times the regular rate. Chicago is higher, at $17.05 an hour from July 1, 2026, for employers with 4 or more workers. Other local rules may apply, so always confirm the work location before setting pay rates.
What payroll taxes and filings do Illinois employers handle?
Employers handle federal payroll taxes, state income tax withholding at 4.95%, UI contributions and wage reports, and new-hire reports. For 2026, IDES taxes the first $14,250 of each worker’s wages. UI-3/40 reports are quarterly, and larger employers also file monthly wage reports. In a PEO setup, whose UI account is used depends on the state’s leasing tests and the actual contract. Ask for that answer in writing before the first payroll.
Helen is Anywherer’s Market Analyst & Content Researcher, with extensive experience in analyzing global employment markets and HR technology trends. She is skilled at turning complex market data into clear, well-researched insights that inform every piece of content. With a strong grasp of the EOR, PEO, and international hiring space, Helen plays a key role in keeping Anywherer’s research accurate, up to date, and genuinely useful for readers.
