Banking Regulator
Illinois’s official banking regulator office and contact information.
Illinois Department of Financial and Professional Regulation - Division of Banking
Regulates state-chartered banks, credit unions, and other financial institutions in Illinois.
Tax Agency
Illinois’s official tax agency office and contact information.
Illinois Department of Revenue
Administers Illinois' tax laws including income tax, sales tax, and property tax.
Consumer Protection
Illinois’s official consumer protection office and contact information.
Illinois Attorney General - Consumer Protection Division
Handles consumer complaints and enforces consumer protection laws in Illinois.
Securities Regulator
Illinois’s official securities regulator office and contact information.
Illinois Secretary of State - Securities Department
Regulates the offer and sale of securities and the securities industry in Illinois.
Insurance Commissioner
Illinois’s official insurance commissioner office and contact information.
Illinois Department of Insurance
Regulates the insurance industry and protects insurance consumers in Illinois.
Additional Resources
Additional financial resources and industry associations in Illinois.
Illinois Bankers Association
Illinois Credit Union League
Registered Investment Advisors in Illinois
SEC-registered investment advisory firms operating in Illinois.
Nuveen (TIAA)
Institutional investment, ESG investing, fixed income, real assets
Ariel Investments
Value investing, small/mid cap equity, mutual funds
William Blair
Wealth management, investment banking, equity research
Calamos Investments
Mutual funds, closed-end funds, alternative investments
FDIC-Insured Banks in Illinois
Major banks with significant branch presence in Illinois.
Northern Trust
Wintrust Financial
First Midwest Bank
Chase Bank (Illinois)
BMO Harris Bank
Credit Unions in Illinois
NCUA-insured credit unions serving Illinois residents.
Alliant Credit Union
Consumers Credit Union
Baxter Credit Union
Data Sources: Investment advisor data from SEC IAPD. Bank data from FDIC BankFind. Credit union data from NCUA. Last verified: March 2026.
Related Tools & Articles
Helpful financial calculators and articles for Illinois residents.
Federal Income Tax Calculator
Estimate your federal tax liability with our free calculator.
State Income Tax Calculator
Calculate your state income tax based on your filing status.
Mortgage Payment Calculator
Estimate your monthly mortgage payment including taxes and insurance.
How to Protect Yourself from Identity Theft
Essential steps to keep your financial information safe.