Illinois Company Formation and Compliance Guide

01

What to confirm before filing

Confirm entity type, owners, management, name, business activity, registered agent, and any in-state address requirements. An LLC and a corporation have different governance, tax elections, and recurring filings; first-year price alone is not a sound basis for choosing.

Late filing can trigger an added penalty and administrative dissolution; professional LLCs have separate eligibility rules.

02

Ongoing state compliance

The LLC annual report fee is generally $75. Confirm on the state website before filing. The annual report is generally due before the first day of the anniversary month.

03

E-commerce and sales tax

Cross-border sellers should test economic nexus using sales, transactions, inventory, and marketplace collection records. Numerous local rates apply, and places such as Chicago may impose special taxes.

04

Federal tax and foreign ownership

State formation does not replace federal tax filing. A U.S. entity with foreign ownership may involve an EIN, Form 1120, Form 5472, Form 1065, withholding, or information returns. The applicable filing depends on tax classification, ownership, transactions, and operating facts.

05

How ABS can help

ABS can organize state formation records, coordinate registered-agent service, build annual-report and state-tax calendars, and support e-commerce bookkeeping, income tax, sales tax, payroll tax, and IRS or state notice intake. Scope and pricing are confirmed in writing after the facts are reviewed.