Start an LLC in Illinois

You can’t start an LLC without a name. So the first step in getting your Illinois business off the ground is choosing a name to represent your company.

Illinois LLC naming requirements

When choosing a name for your Illinois LLC, you’ll need to follow the guidelines in §805 ILCS 180/1-10:

• Include the words limited liability company or an abbreviation, such as LLC.
• Not include words or abbreviations that are reserved for other entity types, such as corporation, limited partnership, or Inc.
• Not include the words trust, trustee, or fiduciary, unless the business is an authorized corporate fiduciary.

Your business name also needs to be different from any other active business name in Illinois. You can do a quick search to see if your proposed business name is available by using the Illinois Business Entity Search.

Reserving a business name in Illinois

Illinois allows you to reserve a business name for up to 90 days. To reserve your business name, you’ll need to submit an Application for Reservation of Name to the Illinois Department of Business Services and pay a $25 filing fee. Need to renew that reserved name? You can do so by filing the same form and paying the fee again.

Getting a DBA (Doing Business As) name

Your LLC’s official name is the one written on your Articles of Organization. Any other name your LLC does business under is an assumed business name (sometimes called a fictitious business name or DBA). Assumed business names need to be registered with the Illinois Secretary of State’s office.

Considering using an assumed business name? Learn How to Get an Illinois DBA.

Trademarking your Illinois LLC name

While all registered business names in Illinois must be distinct, that doesn’t mean that your LLC name is protected from general use. For example, sole proprietors who don’t file formation documents with the state can use your business name as a DBA. To have a stronger legal claim to your name, you can trademark your LLC name for $10 by filing the State of Illinois Trademark or Service Mark Applalabamaication. You can also go a step further and trademark your business name nationwide with a federal trademark.

After choosing your LLC’s name, a good next step is locking down a domain name for your business website. Your domain name (URL) is the web address to your site.

A professional domain name should be easy to remember—and ideally, match or complement your business name. When you register your domain name early, you’re more likely to get a name that meets those standards.

You’ll need to claim a business domain name through a registrar. When you hire Northwest to form your LLC, domain registry is one of many in-house services we provide, so you also get a domain name free for a year, plus your own customizable business website secured with SSL protection, and up to ten email business addresses connected to that domain.

A registered agent is a person or business who accepts legal mail (called service of process) on behalf of your business. All Illinois LLCs are required to maintain a registered agent. You’ll have to include your registered agent’s name and address on your Articles of Organization.

Illinois registered agent requirements

Illinois registered agents must:

• Have an Illinois physical address (not a P.O. Box).
• Hold regular business hours.
• Accept legal mail on your business’s behalf and deliver it to you promptly.

If you want to dig into the details, all the rules for registered agents within the state are outlined in §805 ILCS 180/1-35.

Using a registered agent service

You can absolutely be your own registered agent in Illinois. In fact, any organizer, manager, member, or employee of your Illinois LLC can be your company’s registered agent. But here’s some things to keep in mind:

1. Privacy. Your registered agent’s address will be listed on the public record and easy for anyone to access online.

2. Availability. Service of process mailings are no joke. They require proper handling by someone available during regular business hours to accept and notify you of important documents.

3. Appearance. It’s never fun being served a lawsuit. It’s even less fun (and damaging to your business reputation) if you’re served in front of customers and business associates.

Hiring a service like Northwest Registered Agent to handle your service of process mailings ensures that you’re notified instantly when we receive time-sensitive documents on your behalf.

To officially form your LLC, you’ll need to submit two identical Illinois LLC Articles of Organization forms to the Illinois Secretary of State. Illinois allows you the option of submitting your Articles online through the Illinois Secretary of State website or by submitting paper form LLC-5.5 by mail or in person. You’ll need to pay a $150 filing fee. Standard processing time is around 10 business days.

Below is the information you’ll need to file your Articles:

• Limited liability company name that includes the words or abbreviations: Limited Liability Company, L.L.C., or LLC.
• Principal place of business (this doesn’t have to be an Illinois address)
• Effective date of Articles if different than when filed
• Registered agent and registered office in Illinois
• Limited Liability Company purpose or business objectives
• Duration of the limited liability company (if you have a planned end date)
• Optional provisions, such as your internal policies
• Names and business addresses of all managers and members with the power of managers
• Signature(s) of organizer(s)

Note: All information on this form will go on the public record.

You can submit your Articles of Organization online, by mail, or in person.

By mail or in person:

Department of Business Services
Limited Liability Division
501 S. Second St., Rm. 351
Springfield, IL 62756

Online:

Illinois Secretary of State website

Member-managed vs. manager-managed LLC

All LLCs formed in Illinois are by default member-managed unless otherwise outlined in your LLC’s operating agreement. A member-managed LLC is an LLC where all members take part in overseeing business operations. A manger-managed LLC is one where the members of the LLC hire outside managers to run the business. Unsure which structure is best for your Illinois LLC? Check out our LLC Member Vs Manager page.

Illinois Series LLC

Illinois is one of over a dozen states that allow business owners to form something called a Series LLC. A Series LLC allows you to create an LLC that houses other LLCs within it. The businesses within the main LLC have individual liability protection, business purposes, and assets, making them their own entities.

Series LLCs allow business owners to protect all their separate businesses while grouping them together. These business structures are popular for property rental companies. You can form a Series LLC in Illinois by submitting your Articles of Organization and paying a $400 filing fee.

Expedited processing options

Illinois processes LLC Articles of Organization in around 10 business days when processed by mail, online, or in-person. There is a 24-hour expedited option that costs an extra $250.

Per §805 ILCS 180/1-30, an LLC may write an Illinois operating agreement, but it is not required. Still, you should consider an operating agreement a must for your LLC. If you don’t have an operating agreement, your business will be governed by Illinois’s default LLC statutes. Your operating agreement should plan for every major situation that your LLC is likely to deal with.

Here are some common topics operating agreements cover:

• initial investments
• profits, losses, and distributions
• voting rights, decision-making powers, and management
• transfer of membership interest
• dissolution

You’re free to include almost any rule in your operating agreement as long as it doesn’t contradict the Articles of Organization or Illinois law. Operating agreements are internal documents, so you don’t need to file yours with the Secretary of State.

Your business’s EIN (Employer Identification Number) is the number the IRS uses to identify your business on tax forms. Basically, it’s a social security number for your business. The IRS lets you apply for an EIN for free online and by mail. Or you can skip the paperwork and hire Northwest to file for you.

Learn How to get an EIN for your LLC.

New LLCs are asked to file a Beneficial Ownership Information (BOI) Report within 90 days of formation. BOI Reports are a new federal filing aimed at combating financial crimes like money laundering and other scams.

Due to an injunction, the Beneficial Ownership Information Report requirement is currently under review and voluntary to file. At this time, filing a BOI Report is optional, but if the requirement is reinstated, the original deadline (January 1, 2025 for most businesses) and penalties may still apply.

We’ll keep our site up to date as the court rulings proceed, and help you stay in the loop about this important business filing.

To continue operating your business, you need to maintain compliance by keeping up with permits, licenses, and more. Here’s what you’ll need to do.

Opening a bank account

The next step is to open a business bank account. This is essential for LLCs because your limited liability depends on keeping business and personal finances separate.

When you open an account for your Illinois LLC at a bank, be sure to bring:

• Illinois LLC Articles of Organization (a copy is fine)
• the LLC’s operating agreement
• the LLC’s EIN
• an LLC Resolution to Open a Bank Account (if your LLC has more than one member)

Use our free LLC Resolution to Open a Bank Account.

Illinois licenses and permits

In Illinois, all businesses need to get a Certificate of Registration or License, which acts as a tax permit, allowing the business to collect sales tax. To get your Illinois tax permit, you’ll need to file form Reg-1 with the Central Registration Division Illinois Department of Revenue, which can be done online through the MyTaxIllinois web portal or by mail. There is no filing fee. You may also need to get a professional license, zoning permit or other types of state or local permits based on your industry and location.

Illinois Annual Report

Your Illinois Annual Report is due before the first day of your business’s anniversary month. So if your LLC was formed on April 7th, your annual report is due by March 31st the following year. If your report is more than 60 days late, you will have to pay a $100 late fee.

Illinois tax requirements

On top of getting a Certificate of Registration or License to collect the 6.25% Illinois sales tax, your LLC will also need to pay the individual income tax rate of 4.95%. Because all LLCs are taxed as pass-through entities, the business’s profits and losses pass through to the members for them to pay on their own tax returns. You should also check if your municipality has a local sales tax rate. Finally, LLCs with employees will also need to pay workers’ compensation and unemployment insurance taxes.

Check out our Illinois LLC Taxes guide to learn more.

*This is informational commentary, not advice. This information is intended strictly for informational purposes and does not constitute legal advice or a substitute for legal counsel. This information is not intended to create, nor does your receipt, viewing, or use of it constitute, an attorney-client relationship. More information is available in our Terms of Service.