Business Registration - Illinois Department of Revenue
You can register electronically using MyTax Illinois, available at mytax.illinois.gov. On the MyTax Illinois homepage, click “Register a New Business (Form REG-1).” Note that processing time for a …
How to Register for a Sales Tax Permit in Illinois (2025 Guide)
Jul 11, 2025 · Understanding how to get a sales tax permit in Illinois begins with a streamlined registration process through the Illinois Department of Revenue (IDOR). Whether you’re a local …
How to Register for Sales Tax in Illinois - LegalClarity
Nov 25, 2025 · Step-by-step guidance on IL sales tax registration. Define nexus, prepare documents, master the MyTax portal, and ensure compliance.
Illinois Sales & Use Tax Guide - Avalara
Our free online guide for business owners covers Illinois sales tax registration, collecting, filing, due dates, nexus obligations, and more.
How To Register For An Illinois Sales Tax Permit - StartUp 101
Nov 15, 2024 · The Illinois Department of Revenue obtains the sales tax permit when applying for an Illinois Business Tax Number. Keep reading to learn who needs a sales tax permit, what kinds of …
Illinois Sales Tax License Registration - mosey.com
Jan 22, 2026 · Manage sales tax license and reporting requirements in Illinois to keep your business compliant. Register, create accounts, and understand filing deadlines with Mosey.
How to register for a sales tax permit in Illinois - TaxJar
Jan 21, 2025 · All the information you need to know to register for a sales tax permit in Illinois, including what documents you need.
Illinois Sales Tax: How to Obtain an IL Seller's Permit Online
Register for an Illinois Seller’s Permit Online by filling out and submitting the “State Sales Tax Registration” form. This permit will furnish your business with a unique sales tax number (Illinois …
Illinois Sales Tax rates, thresholds, and registration guide
May 11, 2023 · Everything you need to know about registering and filing taxes online in Illinois.
Illinois REG-1 Business Registration Guide
Learn how to complete the Illinois REG-1 business registration form online. Step-by-step instructions for sales tax, withholding, and more—fast, clear, and compliance-ready.