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Illinois . Merger

Illinois business merger: Articles of Merger explained.

A statutory merger in Illinois combines two or more entities into one surviving entity. The non-surviving entities cease to exist. This guide explains the structure, the Plan of Merger, the state filing, and the things founders most often miss after the merger closes.

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Types of Illinois merger

Statutory merger

Two entities combine into one. The surviving entity absorbs assets, liabilities, and obligations.

Cross-entity merger

LLC + Corporation, LLC + LP, etc. Illinois allows cross-entity mergers under statute.

Triangular merger

Common acquisition structure. Acquirer forms a subsidiary that merges with the target.

Cross-state merger

Surviving entity domiciled outside Illinois. Requires coordinated filings in both jurisdictions.

Illinois merger filing process

  1. 1Draft Plan of Merger. Identifies parties, surviving entity, conversion of interests, effective date.
  2. 2Obtain approvals. Member, shareholder, board approvals per governing documents.
  3. 3File Articles of Merger with the Illinois Secretary of State and any other state where a party is domiciled or qualified.
  4. 4Tax and creditor notifications. Illinois Department of Revenue, IRS, creditors per applicable law.
  5. 5Post-merger compliance. Update licenses, contracts, registrations, payroll, bank accounts.
FAQ

Frequently asked questions

What is a Illinois merger?
A statutory combination of two or more entities. The surviving entity absorbs the others.
How much does it cost to file Articles of Merger in Illinois?
Varies by structure and entity types involved. File.Business provides a quote upfront.
Can a Illinois LLC merge with a Corporation?
Yes. {s["name"]} allows cross-entity mergers.
Can I merge a Illinois entity with an out-of-state entity?
Yes, with coordinated filings in both states.
What happens to the non-surviving entity in a Illinois merger?
It ceases to exist upon merger effectiveness. Its rights, liabilities, and obligations transfer to the surviving entity.
Do I need shareholder approval for a Illinois merger?
Yes for Corporations. LLC approval requirements depend on the Operating Agreement.
Does File.Business handle merger filings?
Yes. Plan of Merger, governance approvals, state filings, post-merger registration updates.

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Disclosure. File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with the Illinois Secretary of State or any Secretary of State office. You may file directly with the Illinois Secretary of State. Information on this page is for general guidance only and is not legal, tax, or accounting advice. Fees and deadlines verified against the Illinois Secretary of State as of June 2026 and may change. For entity-specific guidance, consult a licensed Illinois attorney or CPA.

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File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with any Secretary of State office. You may file directly with the appropriate state agency. SOC 2 Type II audited. 220,000+ businesses formed since 2017.