Illinois Archives | Sales Tax & Resellers Permit Number Business Registration

How to Form an LLC in Illinois: What to File and When

OTIN Editorial Team — Sat, 15 Aug 2026 05:18:23 +0000

To form a standard domestic LLC in Illinois, file Articles of Organization, Form LLC-5.5, with the Illinois Secretary of State, Department of Business Services, Limited Liability Division. The filing fee is $150. Before filing, choose a compliant LLC name, identify an eligible…

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Illinois Marketplace Facilitator Rules: What Sellers Need to Know for 2026

OTIN Editorial Team — Fri, 22 May 2026 01:06:26 +0000

Key Takeaways Illinois requires marketplace facilitators to collect and remit Illinois Retailers’ Occupation Tax (ROT) on marketplace sales shipped to Illinois customers. Illinois uses destination-based tax for remote/marketplace sales and requires location-specific (rate/ROE) reporting through MyTax Illinois. Marketplace sellers often owe Illinois Use Tax on taxable purchases and may still need Illinois registration depending on

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Illinois Removed the 200-Transaction Nexus Threshold: What It Means for Sellers

OTIN Editorial Team — Thu, 14 May 2026 02:08:16 +0000

Key Takeaways Illinois removed the separate 200-transaction economic nexus threshold; the focus is now on the $100,000 Illinois sales threshold. Remote sellers with economic nexus generally register with the Illinois Department of Revenue and collect Illinois Retailers’ Occupation Tax (ROT) at the destination rate. Marketplace sellers often don’t need to collect Illinois sales tax on

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How to Register a Business in Illinois

OTIN Editorial Team — Thu, 30 Apr 2026 17:02:33 +0000

How to Register a Business in Illinois Overview: What “Registering a Business” Means in Illinois Registering a business in Illinois generally involves choosing a legal structure, filing the correct formation or assumed-name documents, obtaining tax registrations (including Illinois sales tax if you sell taxable goods or certain services), and securing any required state or local

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Illinois Resale Certificate: Common Mistakes That Trigger Tax Bills

OTIN Editorial Team — Sat, 28 Mar 2026 00:03:27 +0000

Illinois Resale Certificate: Common Mistakes That Trigger Tax Bills Why Illinois resale certificate mistakes lead to tax assessments In Illinois, resale documentation errors often surface during an audit, when the Illinois Department of Revenue (IDOR) reviews whether tax was correctly collected or whether a purchase truly qualified for resale. If a seller cannot support a

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Illinois EIN for an LLC: Timeline and Common Mistakes

OTIN Editorial Team — Mon, 09 Mar 2026 10:42:22 +0000

Illinois EIN for an LLC: Timeline and Common Mistakes What an EIN Is and Why an Illinois LLC Usually Needs One An Employer Identification Number (EIN) is a federal tax ID issued by the IRS. For an Illinois LLC, an EIN is commonly needed to: Open a business bank account and set up merchant processing

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Illinois Sales Tax Registration Step-by-Step

OTIN Editorial Team — Fri, 06 Mar 2026 15:43:46 +0000

Illinois Sales Tax Registration Step-by-Step What Illinois Sales Tax Registration Is (and Who Needs It) Illinois sales tax registration is the process of enrolling with the Illinois Department of Revenue (IDOR) to collect and remit Illinois Retailers’ Occupation Tax (sales tax) and related local taxes on taxable sales. Registration is typically required if your business:

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How to Register for a Sales Tax ID in Illinois

OTIN Editorial Team — Fri, 06 Mar 2026 14:48:49 +0000

How to Register for a Sales Tax ID in Illinois What a Sales Tax ID Is in Illinois A Sales Tax ID (often called a seller’s permit, sales tax permit, or Illinois sales tax registration) is the registration that allows a business to collect Illinois sales tax and remit it to the state. In Illinois,

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How to Apply for an Illinois Seller’s Permit

OTIN Editorial Team — Thu, 05 Mar 2026 14:58:23 +0000

How to Apply for an Illinois Seller’s Permit What an Illinois Seller’s Permit Is (and What Illinois Calls It) In Illinois, a “seller’s permit” is commonly referred to as an Illinois Sales Tax Permit or Certificate of Registration. It authorizes a business to collect and remit Illinois sales tax on taxable sales of goods (and

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Illinois Sales Tax Registration Requirements

OTIN Editorial Team — Thu, 05 Mar 2026 14:57:58 +0000

Illinois Sales Tax Registration Requirements When Illinois Sales Tax Registration Is Required Businesses must register for Illinois sales tax when they make taxable retail sales of tangible personal property (and certain taxable services) delivered in Illinois. Registration is also required when a business has a sufficient connection to Illinois to be responsible for collecting and

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