How to Search Illinois Professional Licenses (Start Here)

Professional and occupational licenses in Illinois are issued by state licensing boards — each profession has its own board with its own search tool. There is no single database of all licenses in Illinois.

What this page covers: Illinois professional license verification databases — medical, legal, real estate, contractor, financial, and other regulated professions. What it does not cover: Business entity filings (those are with the Secretary of State) or association memberships (those are private organizations).

Where to start: Identify the profession, then go to the specific licensing board for Illinois. For attorneys, go to the state bar. For doctors, the medical board. For contractors, the contractor licensing authority. The databases below are organized by profession.

Common mistake: A professional license and a business registration are different. A license authorizes a person to practice a profession. A business registration authorizes a company to operate. They are filed with different agencies.

Central licensing portal
For Individuals or Entities
Medical board (MD)
State Medical Board - IDFPR - Illinois.gov
Nursing board
Overview of Professional Licensing in Illinois
Insurance licensing
Producers / Agents Portal - Illinois Department of Insurance
Bar / attorney
Active General and Trial Bar Members Search
Contractor licensing
Illinois Department of Financial and Professional Regulation provide online publ
Population
12,710,158
Households
4,956,000
Median Income
$78,433
Median Home Value
$250,800
SearchSystems Editorial
Edited by — Editor & Owner, SearchSystems.net. Public records professional since 1999. NAPBS founding member. Full bio & credentials.
Last reviewed: June 04, 2026 · Methodology: Illinois professional & occupational licenses URL verified against the official state publisher at idfpr.illinois.gov on the review date. 4 primary .gov sources cited below.

Illinois Professional & Occupational Licenses — Key Facts (2026)

Doctors, lawyers, contractors, nurses, real estate agents in Illinois — who's licensed and how to verify in 2026.
State-only
License jurisdiction
Not federal
~22%
U.S. workforce licensed
Up from 5% in 1950
1,100+
Licensed occupations
NCSL national database
Free
Official verification
Never pay 3rd parties
Compacts
Cross-state reciprocity
Nursing/medical/PT
Active license ≠ clean record (verify both)
Active license
100%
Continuing-ed current
70%
No disciplinary actions
30%
No complaint history
20%
Criminal background
10%
Unit: % verified by 'active license' alone.

What Changed in 2026 — Illinois Professional & Occupational Licenses

2026
Illinois professional & occupational licenses portal active
The official Illinois portal at idfpr.illinois.gov continues to serve as the canonical entry point for professional & occupational licenses in 2026.
2026
Latest federal complement for professional & occupational licenses
The NCSL National Occupational Licensing Database at www.ncsl.org provides federal-level context that complements Illinois state records.
2026
Illinois access in 2026
For 2026, Illinois continues to publish professional & occupational licenses information through state-authorized portals; check idfpr.illinois.gov for current fees and processing times.
2026
Federal records framework refresh
Federal record types (federal liens, federal land, federal vital statistics) continue to live OUTSIDE Illinois's state portal — see the Primary Sources below for additional official portals.

The 4-Step Illinois License Verification

1
Step 1 — Identify the profession
Each occupation has its own Illinois board (medical, bar, contractor, real-estate, cosmetology, etc.).
2
Step 2 — Confirm the state
Licenses are state-issued. A Illinois license is NOT automatically valid in other states (unless via compact).
3
Step 3 — Use the official board lookup
Every Illinois board has a free verification tool. Never pay a third party for verification.
4
Step 4 — Check disciplinary history
Active license ≠ clean record. Always check the Illinois board's disciplinary actions search.

Five Things People Get Wrong About Illinois Professional & Occupational Licenses

❌ Myth: "There's a national license database."
✓ Truth: False. There is no federal occupational license registry. Each state licenses separately.
❌ Myth: "My Illinois license works in all 50 states."
✓ Truth: False. Most licenses are state-only. Compacts (nursing, medical, PT) cover some — not all.
❌ Myth: "License status equals reputation."
✓ Truth: False. Active license only means fees paid and CEs current. Check disciplinary actions separately.
❌ Myth: "All licensed pros pass background checks."
✓ Truth: Partially false. Background checks vary by state and profession. Some Illinois boards self-report only.
❌ Myth: "Expired = revoked."
✓ Truth: False. Expired means not renewed. Revoked means stripped for cause. Very different.

Primary Sources and Official Record Portals

Related Licenses Resources

Related Public Records
National view of this topic: All states: Licenses
Sample Illinois counties: Adams · Alexander · Bond · Boone · Brown

Licenses Databases

59 official Illinois licenses sources.

Court Records Criminal Records Wants & Warrants Vital Records Voter Records Licenses Recorded Documents Property Records

Licenses

Packet updated 5/7/24 INSTRUCTION SHEET Licensed Acupuncturist
Official Free
current certifi cation as an active Diplomate of Acupuncture or Diplomate
🌐 idfpr.illinois.gov
Professions and Industries Regulated by IDFPR - Illinois.gov
Official Free
You may search for a specific profession or industry by using your computer's Search Tool (Control + F on Windows or Command + F on Mac). All · A through F · G through N · O through W · Acupuncturist · Adult Use Cannabis Program · Alarm · Ambulatory Currency Exchange ·
🌐 idfpr.illinois.gov
Appraisal Division Forms - IDFPR - Illinois.gov
Official Free
Real Estate Application for Licensure - REA-1001 Certification for Nonresident Consent - REA-1002 Certification by Licensing Agency - REA-1003 Temporary Practice Permit Application - TEM-1020 Real Estate Appraiser Renewal Application - REA-5550 Supervisor/Trainee Form - SUP-2015
🌐 idfpr.illinois.gov
Administrative Office of the Illinois Courts
Official Free
The Illinois Courts Attorney Licensure page provides information for lawyers and law students, for additional information visit our page for Lawyers.
🌐 illinoiscourts.gov
IDFPR | Welcome to Banks, Trust Companies & Savings Institutions
Official Free
The mission of the Bureau of Banks and Trust Companies and Savings Institutions is to charter or authorize and supervise state-chartered commercial banks, state-chartered savings banks, foreign bank offices, electronic funds transfer systems, corporate fiduciaries, and their information systems.
🌐 idfpr.illinois.gov
Public Accounting - IDFPR - Illinois.gov
Official Free
Registered Certified Public Accountant · NOTICE: IDFPR Introduces New Online Licensing System! On October 30, 2024, IDFPR launched CORE, a new online system for professionals to apply for licensure in Illinois. New applications for Public Accountant CE Sponsor are now available in CORE.
🌐 idfpr.illinois.gov
Illinois Department of Financial and Professional Regulation
Official Free
LICENSED CHIROPRACTIC · PHYSICIAN · Yes · No · DPR · 36 · LICENSED PHYSICIAN AND · SURGEON · Yes · No · DPR · 336 · LICENSED PHYSICIAN CONTROLLED · SUBSTANCE · Yes · No · DPR · 316 · LICENSED PODIATRY CONTROLLED · SUBSTANCE · Yes · No · DPR · 319 ·
🌐 idfprapps.illinois.gov
Clinical Psychology - IDFPR - Illinois.gov
Official Free
On October 30, 2024, IDFPR launched CORE, a new online system for professionals to apply for licensure in Illinois. New applications for Clinical Psychology, Psychologist Continuing Education Program and Prescribing Psychologist Clinical Rotations Program are now available in CORE.
🌐 idfpr.illinois.gov
Lead Supervisory, Inspector, Risk Assessor, and Worker
Official Free
Licensed Lead Abatement Contractors · Centers for Disease Control and Prevention (CDC) | Lead · U.S. Environmental Protection Agency (EPA) | Lead · U.S. Department of Housing and Urban Development (HUD) | Healthy Homes and Lead Hazard Control · National Center for Healthy Housing ·
🌐 dph.illinois.gov
Roofing Advisory Board - IDFPR - Illinois.gov
Official Free
Please be sure to use only IDFPR’s official website at IDFPR.illinois.gov. Close button. The Roofing Advisory Board is composed of eight members. Seven members are licensed roofing contractors, one of whom represents a statewide home builders association and one of whom represents a retailers association, and one member is appointed to represent the interests of the public.
🌐 idfpr.illinois.gov
Controlled Substances - IDFPR - Illinois.gov
Official Free
The lack of 'N' designation does not prevent or affect the ability of Illinois licensed practitioners to prescribe, dispense or order narcotic drugs to the extent allowed by law. The DEA is aware of this change. Questions regarding 'N' designations on DEA registrations should be directed to the DEA at their website or by phone at 312-353-7875. PLEASE NOTE: this change does not apply to Controlled Substances Registrations issued under the Humane Euthanasia Act.
🌐 idfpr.illinois.gov
INSTRUCTION SHEET COSMETOLOGIST - IDFPR - Illinois.gov
Official Free
Learn more about IDFPR’s NEW online licensing system · Learn about the progress IDFPR has made and the path we’re paving ahead
🌐 idfpr.illinois.gov
Licensed Professional Counselor or Licensed Clinical ... - IDFPR
Official Free
You may verify the continuing education requirements of your profession here: https://idfpr.illinois.gov/rules2015.html · Pursuant to 20 ILCS 2105-165(a), the Department requires the following professionals to disclose information regarding charges or · convictions pertaining to certain off enses. Please check applicable profession. Advanced Practice Registered Nurse · Acupuncturist · Audiologist · Dental Hygienist · Sex Off ender Evaluator · Dentist · Athletic Trainer · Genetic Counselor · Marriage and Family Therapist ·
🌐 idfpr.illinois.gov
Packet updated 1/25/24 INSTRUCTION SHEET DENTAL SPECIALIST NON - Examination
Official Free
The TN-DEN must be completed by the Dean of the dental school or head of the Oral and Maxillofacial · Surgery Department of the hospital or clinic in which the Oral and Maxillofacial Surgery took place. 2. Submit evidence of certifi cation as a full American Board Diplomate (original letter from American Specialty · Board verifying passing scores for both the written portion and the clinical portion). 3. Fee payment must be in the form of a check or money order made payable to the Illinois.
🌐 idfpr.illinois.gov
IDFPR | Consolidated Reports - Illinois.gov
Official Free
The Illinois Department of Financial and Professional Regulation publishes a monthly report detailing disciplinary action taken by the Department. Each disciplinary report lists all licensees disciplined by the Department within a given month. It includes the name of the disciplined professional, the city where the licensee is registered, the discipline imposed and a brief description of the reason for the discipline
🌐 idfpr.illinois.gov
Professional Design Firm - IDFPR - Illinois.gov
Official Free
If your company plans to offer professional design services in Illinois that pertains to the practice of Architecture, Land Surveying, Professional Engineering, and/or Structural Engineering, your company must be registered as a Professional Design Firm (“PDF”) with this Department
🌐 idfpr.illinois.gov
IDFPR Online Services Portal
Official Free
Don't have an account? Register Forgot Password? Forgot User ID · IDFPR Online Services Portal
🌐 ilesonline.idfpr.illinois.gov
Geology - IDFPR - Illinois.gov
Official Free
On October 30, 2024, IDFPR launched CORE, a new online system for professionals to apply for licensure in Illinois. New applications for Geologists are now available in CORE.
🌐 idfpr.illinois.gov
Illinois Department of Public Health Worker Registry
Official Free
Nursing assistants/aides working in licensed and or certified skilled nursing facilities, intermediate care facilities and home health agencies must be certified. Certification is achieved primarily by successfully completing a state-approved nursing assistant training program, a competency.
🌐 hcwrpub.dph.illinois.gov
Home Inspector License Requirements and Qualifications Qualifications •
Official Free
Home Inspector License · Requirements and Qualifications · Qualifications · • · Minimum Age: 18 · • · Minimum Education: High School Diploma or General Equivalency Diploma (GED) • · Pre-License Education: A 60-hour Pre-license course & Pre-license field course containing 5 field.
🌐 idfpr.illinois.gov
IDPH Rural Health Care Center Directory | Illinois Open Data
Official Free
Official professional licenses source (data.illinois.gov).
🌐 data.illinois.gov
Directory of Industrial Radiographers
Official Free
Please enter full or partial last name of radiographers you are searching for. First initial can be used to narrow your search but is not required · If you have any questions or need additional information, contact IEMA at 217-785-9913
🌐 public.iema.state.il.us
Can't find your SBS state?
Official Free
Illinois · Iowa · Kansas · Maryland · Massachusetts · Missouri · Montana · Nebraska · New Hampshire · New Jersey · New Mexico · North Carolina · North Dakota · Oklahoma · Oregon · Puerto Rico · Rhode Island · South Carolina · South Dakota ·
🌐 sbs.naic.org
Land Surveyors Licensing Board - IDFPR - Illinois.gov
Official Free
Land Surveyors became regulated between 1937 and 1938. The practice of land surveying includes surveying, preparation of boundary descriptions and measuring the area of any portion of the earth's surface. The Board is appointed by the Secretary and is composed of seven members consisting of.
🌐 idfpr.illinois.gov
Lead Training Course Providers
Official Free
Approval for lead training courses is based on the requirements specified in the Lead Poisoning Prevention Code. Application for refresher courses can be made concurrently with the initial course. The Department does not need additional copies of course material for the refresher course if.
🌐 dph.illinois.gov
ILCC Licensing Portal
Official Free
State of Illinois Liquor Control Commission liquor license search.
🌐 ilccportal.illinois.gov
Is Your Massage Therapist Licensed? In Illinois, It’s the Law
Official Free
With over 12,000 licensed massage therapists in Illinois, we want to ensure that those individuals and entities holding themselves out as massage therapists adhere to the licensure qualifications and standards for professional practice.” Under Illinois law, massage therapists must meet standards of qualification, education, training and experience prior to licensure.
🌐 idfpr.illinois.gov
Illinois Registers First Medical Cannabis Dispensary - IDFPR's
Official Free
Once approved for registration, the dispensary name and address will be posted to the Department website. Illinois medical cannabis dispensaries will receive medical cannabis exclusively from Illinois’ licensed growing facilities once it becomes available.
🌐 idfpr.illinois.gov
Third-Party Payment Processors No Longer Require Money Transmitter Licensure in Illinois
Official Free
SPRINGFIELD – Third-party payment processors that allow merchants to utilize “smart” technology to process transactions for goods and services will no longer be required to apply for licensure in the state of Illinois. This change in policy will allow companies like Square Inc., which offers a mobile card payment service, to operate without obtaining licensure under the Illinois Transmitter of Money Act (“TOMA”) for relevant products.
🌐 idfpr.illinois.gov
Illinois Department of Public Health Worker Registry
Official Free
Nursing assistants/aides working in licensed and or certified skilled nursing facilities, intermediate care facilities and home health agencies must be certified. Certification is achieved primarily by successfully completing a state-approved nursing assistant training program , a competency.
🌐 hcwrpub.dph.illinois.gov
https://idfpr.illinois.gov JB PRITZKER MARIO TRETO, JR.
Official Free
CAAN Academy of Nursing ……………………………. Cathyrn C. Sills, Program Director · 4747 Lincoln Mall Drive - Suite 420 Matteson, IL 60443 · CALC Institute of Technology ………………………. First Step to Excellence, HCTA ……….……. Dr. Jerrilyn Pearson, Program Director. Great Paragon Healthcare, Inc. ………………………. Illinois.
🌐 idfpr.illinois.gov
Pawnbrokers, Check Printers, & ATMs - IDFPR - Illinois.gov
Official Free
The Division of Banking also registers check printers, non-financial institution deployers of Automated Teller Machines, and licensing pawnbrokers that operate in Illinois. Pawnbroker, Check Printer, and Non-Bank Owned ATMs Enforcement Actions. On March 22, 2024, Governor Pritzker signed into law Public Act 103-0585, which provides important consumer protections, including setting new financing rate caps on pawn transactions, requiring additional disclosures and display of fees.
🌐 idfpr.illinois.gov
Board of Licensing for Perfusionists - IDFPR's - Illinois.gov
Official Free
The Board of Licensing of Perfusionists is composed of five persons appointed by the Secretary consisting of two perfusionists, one cardiothoracic surgeon, one licensed registered professional nurse certified by the association of Operating Room Nurses and one public member.
🌐 idfpr.illinois.gov
State Board of Pharmacy - IDFPR - Illinois.gov
Official Free
The pharmacy profession was placed under the jurisdiction of the Department upon its creation in 1917. The regulatory statute covers the activities of both the pharmacist and the various categories of pharmacy in which he/she may work. The Board is composed of nine members, consisting of seven currently licensed pharmacists and two public members
🌐 idfpr.illinois.gov
IDFPR | Physical Therapy Licensing and Disciplinary Board
Official Free
Physical therapists became regulated between 1951 and 1952. Physical therapy is the treatment or evaluation of a person by the use of effective properties of physical measures such as heat, cold, light, water, radiant energy, electricity, sound and air; the use of therapeutic massage, exercise.
🌐 idfpr.illinois.gov
Illinois Physicians and Surgeons Database
Official Free
This linked site is not bound by the Illinois Secretary of State Privacy Policy. This database indexes the names of physicians and surgeons who registered for licensure with the Illinois State Board of Health and the Illinois Department of Professional Regulation from ca.
🌐 ilsos.gov
State Medical Board - IDFPR - Illinois.gov
Official Free
The Medical Board's purpose is to advise the Department on the qualifications of applicants for medical licensure in Illinois; and to consider allegations of misconduct or malfeasance by members of the medical professions and recommend appropriate discipline to the Secretary. The Board is composed of 17 members appointed by the Governor, twelve of whom are physicians with representatives of the osteopathic and chiropractic branches including, two physician assistants, and three members of the public.
🌐 idfpr.illinois.gov
Podiatry - IDFPR - Illinois.gov
Official Free
Podiatric Physician, Licensed - Renewal Available! Temporary Podiatric Physician · Visiting Podiatrist Professor · Podiatry CE Sponsor - Renewal Available! Podiatry Controlled Substance - Renewal Available! NOTICE: IDFPR Introduces New Online Licensing System!
🌐 idfpr.illinois.gov
instruction sheet - private detective - IDFPR - Illinois.gov
Official Free
For Private Detective--this shall include full-time experience as an investigator in a law enforcement · agency of the federal government, a state, or a state political subdivision which shall include a state's attorney's offi ce or a public defender's · offi ce.
🌐 idfpr.illinois.gov
Directory of Radiologic Technologists
Official Free
Accreditation & Licensing · Training & Exercises · Local EMA Resources · Nuclear & Radiation Safety · Technologist Accreditation​
🌐 iemaohs.illinois.gov
IEMA | Division of Nuclear Safety | Radiation Safety Inventory Login
Official Free
Welcome to the IEMA Online X-Ray Registration System. This system may be used by x-ray registrants to update facility and equipment information and to pay the annual registration fee online · If you need assistance with this system, please contact the Agency at 217-557-8988 or ema.epfees@.
🌐 public.iema.state.il.us
Illinois Radon Licensing System
Official Free
Welcome to the Illinois Radon Licensing System. Please use the 'Log in' link below if you have already been approved by IEMA to use the site. Otherwise, click 'Register' to start the registration process to gain access if you are a licensee. If you are looking for a licensed professional, click.
🌐 public.iema.state.il.us
Radon - Illinois Emergency Management Agency
Official Free
The Illinois Emergency Management Agency and Office of Homeland Security Radon program staff informs Illinois citizens about the risks associated with radon and how to reduce radon levels in their homes. The Agency also licenses and regulates the individuals who provide radon measurement and mitigation to the public.
🌐 iemaohs.illinois.gov
Respiratory Care Board - IDFPR - Illinois.gov
Official Free
The Respiratory Care Practice Act became effective January 1, 1996. Respiratory care and cardiorespiratory care include direct and indirect services in the implementation of treatment, management, disease prevention, diagnostic testing, monitoring and care of patients with deficiencies and abnormalities associated with the cardiopulmonary system
🌐 idfpr.illinois.gov
Security Professions - IDFPR - Illinois.gov
Official Free
Licensed Private Security Contractor Licensed Private Security Contractor Agency Licensed Private Security Contractor Agency Branch Office Firearm Control Card (FCC) Permanent Employee Registration Card (PERC) Firearm Instructor Approved 20-Hour Basic
🌐 idfpr.illinois.gov
Certified Shorthand Reporters Board - IDFPR - Illinois.gov
Official Free
The practice of shorthand reporting means reporting by the use of any system of manual or mechanical shorthand writing of Grand Jury proceedings, court proceedings, court related proceedings of like character, or proceedings of an administrative agency when the final decision of the agency is likely to be subject to judicial review. The Board is composed of six licensed shorthand reporters and one public member appointed by the Secretary.
🌐 idfpr.illinois.gov
ILDPR Secure Login
Official Free
ILDPR Secure Login
🌐 ilesonline.idfpr.illinois.gov
Public Utility - Illinois Commerce Commission
Official Free
The ICC currently regulates six investor-owned public utilities that provide water service: Aqua Illinois Inc., Colonial Meadows Water Company, Illinois-American Water Company, Powers Water Company, Prairie Path Water Company, and Silvis Heights Water Corporation.
🌐 icc.illinois.gov
IDFPR | Veterinarian Licensing and Disciplinary Board
Official Free
Veterinarians were one of the professional groups originally regulated by the Department beginning with the Agency's creation in 1917. Licensure allows the veterinarian to directly or indirectly diagnose, treat, etc., for any disease, pain, deformity, defect, injury, wound or physical condition.
🌐 idfpr.illinois.gov
Dino Delic - Illinois Lawyer Finder
Official Free
Easy to use, credible, transparent lawyer search, based on your legal needs and location. Browse lawyers to see their background, experience, and skills. Choose a licensed lawyer and schedule a legal consultation. We work with the state bars of Georgia, Illinois, Indiana and Michigan.
🌐 isba.reliaguide.com
Swimming Facilities
Official Free
These inspections are done either by the Illinois Department of Public Health or a local health department, or, in Chicago, by the Chicago Park District. The Department also requires that each of the 335 licensed public beaches be sampled every two weeks to determine that bacterial levels in.
🌐 dph.illinois.gov
Consumer Credit - IDFPR - Illinois.gov
Official Free
The Division of Financial Institutions, Consumer Credit Section is responsible for licensing and regulating consumer companies/services. These entities include Consumer Installment Lenders, Collection Agencies, Consumer Legal Funding Companies, Sales Finance Agencies, Payday Loan Lenders, Debt Management Services, Debt Settlement Companies, Development Credit Corporations, and Safety Deposit Boxes.
🌐 idfpr.illinois.gov
Educator Licensure
Official Free
Welcome to Educator Licensure! Here you will find information for educators, Regional Offices of Education, Licensure Officers, districts and schools. Our goal is to convey consistent and effective messages of Illinois licensing requirements.
🌐 isbe.net
eLicense Online
Official Free
MAR AND FAM THERAPIST · MASSAGE LICENSING BD · MEDICAL BOARD · MEDICAL CANNABIS BD · MEDICAL CORP. MUSIC THERAPY · NAPRAPATHY · NURSING BOARD · NURSING HOME ADMIN · OCCUPATIONAL THERAPY · OPTOMETRY · ORTHO,PROST.,PEDORTH · PERFUSION · PHARMACY · PHYSICAL THERAPY ·
🌐 online-dfpr.micropact.com
Illinois Defense Counsel
Official Free
IDC is an exceptional community of defense attorneys, dedicated to improving the judicial system and the practice of law. Membership is essential for every trial lawyer who makes a living representing defense interests in Illinois.
🌐 idc.law
State of Illinois | Department of Financial & Professional Regulation
Official Free
Wednesday, April 27, 2022 the IDFPR website will be down for maintenace from 5:00 - 7:00 PM as the agency moves to its new web site address IDFPR.ILLINOIS.GOV!. The Mission of the Division of Real Estate is to serve, safeguard, and promote the public welfare by ensuring that qualifications.
🌐 idfpr.com

Illinois Counties

102 Illinois counties are indexed on SearchSystems.net — top 28 counties shown below. Browse the full directory or click any county for local court, sheriff, recorder and assessor links.

Cook DuPage Lake Will Kane McHenry Winnebago Madison St. Clair Adams Alexander Bond Boone Brown

Frequently Asked Questions

Most Illinois professional and occupational licenses (medical, legal, contracting, real estate, cosmetology, etc.) can be verified through the Official Illinois Professional & Occupational Licenses at idfpr.illinois.gov. Look for the 'License Lookup' or 'Verify a Licensee' tool — searches are typically by name or license number and return active/inactive status.

Illinois business licensing combines state, county, and city permits depending on activity. The Official Illinois Professional & Occupational Licenses at idfpr.illinois.gov is the primary state portal; local business-tax certificates are issued by the city or county where you operate. The federal usa.gov permits guide is a helpful starting overview.

That depends on the profession. Illinois, like most states, licenses regulated occupations such as healthcare, legal, construction, real estate, cosmetology, security, and many trades. The Official Illinois Professional & Occupational Licenses publishes the full list and exemption criteria at idfpr.illinois.gov.

Complaints against licensed professionals in Illinois are filed with the issuing board or division under the Official Illinois Professional & Occupational Licenses. Most boards accept online complaint submissions at idfpr.illinois.gov, plus mail-in forms. Each board reviews complaints under the standards in Illinois's occupational code.

Many Illinois boards offer license-by-reciprocity, license-by-endorsement, or expedited pathways for applicants already licensed in another U.S. jurisdiction. The Official Illinois Professional & Occupational Licenses at idfpr.illinois.gov publishes the reciprocity rules per profession; some require additional Illinois-specific exams or jurisprudence tests.