Illinois LLC – How to Start an LLC in Illinois (2022)

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How to Start an LLC in Illinois: If you’re interested in setting up an Illinois LLC, you’ve come to the right place. Having an LLC not only protects your personal assets but also is less complicated than other business structures. Illinois laws make it easy to establish your LLC in Illinois. On this page, You’ll find all the steps that must be taken to ensure that your Illinois LLC has been correctly established. We recommend you read the whole article very carefully word by word, don’t miss anything 🙂

Illinois LLC

How to Start an LLC in Illinois

An LLC or a Limited Liability Company is a hybrid business entity combining a corporation’s characteristics with a partnership or sole proprietorship. It separates your personal assets from your business assets, thus giving you personal asset protection.

If you wish to start an LLC in Illinois, mainly you have to file your Certificate of Formation with the State and pay a filing fee of $150. There are some more steps to follow to get your LLC established in Illinois. The following steps explain everything you need to create your LLC in Illinois in 2022. Let’s get started!

Step 1: Decide a Name for Your Illinois LLC

illinois name your llc

The very first step while forming an LLC in Illinois is to give a proper name to your LLC. Before you name your business, you must know that the name should be easy to remember, available in the state, and follows all the LLC naming guidelines.

Illinois LLC Naming Guidelines

There are a few specific requirements all the LLCs in Illinois have to follow while naming their Company. Some of the most important requirements are as follows:

  • Your business name should be available and no other existing business in Illinois can have the same name. Perform a name search from the below-mentioned source to be sure your name isn’t taken already.
  • “Limited Liability Company”, “LLC”, and “L.L.C.” – any one of these has to be used as a suffix in your business name.
  • You cannot use any name for your business that is confusing or misleading. Terms such as “Treasury”, “State Department”, “FBI”, “CIA”, etc. shouldn’t be included.
  • Terms like “Bank“, “University“, “Attorney“, “Doctor“, etc can be added only after the additional requirements by Illinois State Government are fulfilled.
  • (Optional) It’s better to name your business something for which your desired domain is available.
Important Links –Submit Offline Form to –
Illinois Business Entity Search – Online Name Search
Name Reservation Form – PDF
Idaho LLC Name Search Guide – Instructions
Department of Business Services
Limited Liability Division
501 S. Second St. Rm. 351
Springfield, IL 62756.

Reserve Business Name for Future

If you do not wish to file your LLC right now but want to hold the name you have decided then you can reserve your LLC name for 90 days. To keep the name, you have to file a name reservation application and pay $25 to reserve your name with the Illinois Secretary of State.

Doing Business As (DBA) or Trade Name

Once you have a legal name for your LLC, you can register it. However, it is not mandatory. You can, instead, use DBA, Fictitious Name, or Trade Name. In that case, you must register your name with the Illinois Secretary of State by submitting an Assumed Business Name Registration (online) along with the filing fee of $50.

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Tailor Brands offer DIY website templates and incredible logo designs. If you plan to get a website then it is wise to have a “.com” domain for your business but these days you can also use other TLDs like “.company”, “.xyz” etc. With Tailor Brands, you can get everything you need at an affordable price.

Do I have to include LLC in my company email/domain?

It is not legally mandatory to use the word LLC in your domain name or email. If you want you can use it. However, it is recommended not to use LLC in the domain name. A domain name should be short and easy to remember.

Step 2: Assign a Registered Agent in Illinois

Illinois registered agent

The second step to forming an Illinois LLC is to appoint a Registered Agent. A registered agent is a person or business entity that will act or work on your LLC’s behalf. This person or business will receive important tax forms, legal documents, all notices of lawsuits, and other official government correspondence in Illinois. Hence, hiring a competent Illinois Registered Agent for your LLC is necessary. 

Make sure your registered agent is a resident of Illinois or has a physical street address. Their business address or the principal address should be in Illinois. Most LLC formation companies also provide registered agent services. Below are two great LLC setup services, even if you buy their cheapest plan (normally $49/year) you also get registered agent service and other services at a reasonable price.

LLC Service

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$49 + State Fees

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  • Take you through all steps

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$299 + State Fees

  • Turnaround in a few days

  • EIN & Website Included

  • Operating Agreement Included

These LLC formation services are recommended registered agent services as they are authorized to conduct business in Illinois. Some LLC formation services offer standalone Illinois registered agent services. You can purchase only Registered Agent services from them without purchasing any other LLC formation services.

Who Can Be a Registered Agent?

A person who is above 18 years of age and has a physical address in the state of Illinois can be a Registered Agent. A Registered Agent can be an independent person or can be a business entity. One who is responsible for handling all the legal documents.

Can I Be My Own Registered Agent?

Yes, you can be your own registered agent if you are a resident of the state of Illinois and you are above 18 years of age. To become a registered agent you must have the authority to conduct any type of business in Illinois.

Step 3: File Articles of Organization in Illinois

Illinois certificate of formation

The third and most important step in forming an Illinois LLC is to file the Certificate of Formation. This Illinois Articles of Organization is a legal document needed to officially register your business with the Secretary of State. It costs $150 to file your formation certificate in Illinois. (Read more on LLC cost in Illinois).

The Certificate of Formation includes details like the name of the LLC, registered agent’s name, address, employees’ details, and structure of the company (member-managed or manager-managed). Before hiring employees in Illinois LLC, one should know about the rules and regulations thoroughly. Also if you are expanding your existing business (an LLC) to Illinois then you need to register as an Illinois Foreign LLC.

How to File Online

Go to the Secretary of State Online Service. You will get the online service page. If you have your credentials then log in to the portal to file your LLC online. You can click on the button below to file online. Read more about the Illinois Articles of Organization for online registration.

How to File by Mail

If you prefer filing real-life forms for your Illinois LLC registration, then you can download Domestic LLC Formation Form LLC-55. Read the form thoroughly, fill it out, and mail it to the following address,

Mailing Address:

Department of Business Services
Limited Liability Division
501 S. Second St., Rm. 351
Springfield, IL 62746

Processing Time: It takes around 10 business days to form an LLC in Illinois. By paying an additional fee, it can be expedited.

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Step 4: Create Your Illinois LLC Operating Agreement

illinois operating agreement

Moving on to the fourth step, filing your operating agreement. An operating agreement is a document that legally outlines the proprietorship and operating procedures of your LLC. This document is vital as it ensures that all business owners are on the same page regarding how they operate, thus reducing future conflicts.

When it comes to filing an Illinois LLC Operating Agreement, the state does not require you to have a comprehensive operating agreement, but it is ideal to have one that contains all the details of your business operation. Like Illinois, there are other states that do not have a mandatory rule to file operating agreements. But, this document would be useful if you decide to dissolve Illinois LLC later. Hence, having an operating agreement may not be necessary but it is definitely ideal.

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Step 5: Filing an Illinois LLC EIN

illinois file EIN for llc

The Employer Identification Number or, simply, the E.I.N. is a nine-digit number given by the Internal Revenue Service (IRS) to make it easier to identify the type of business for tax purposes and taxes in general. The EIN is necessary for any active business or any form of business for that matter. 

EIN is needed when the LLC hires employees. Hiring employees in Illinois LLC requires following specific rules and regulations. On the other side, EIN for Illinois foreign LLC should be obtained if your LLC is based in other states.

To obtain EIN (aka FEIN) one has to fill up a form (Online or by mail) and submit it to the IRS. Enter details of your LLC, and finally complete the form and send it to the address given. You can also get an EIN Assistant who can help you with the process.

Mail to: Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999

Fax: (855) 641-6935 | Fee: Free

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Note: You don’t need a Social Security number when getting an EIN. You can proceed to fill out I.R.S. Form SS-4 and leave section 7b blank. You must then call the IRS at (267) 941-1099 to complete your application. Agents or employees will help you with that.

Congratulation, you are now done with all the necessary steps to form your Illinois LLC. If you do it yourself it should take you a long time to properly understand and do all the steps.

However, if you use TailorBrands it should take fewer hours and you always have live chat with expert support for any help you need.

After Starting Your Illinois LLC

After forming your LLC, there are still some things that you will need. Take note of the following:

This page has provided you with steps to LLC formation and filing processes. You now have to remember upcoming filing deadlines and filing fees or filing costs, including fees for late filings to make sure your LLC is up-to-date.

Cost of Illinois LLC

Forming an LLC in Illinois is no doubt more cost-effective than other structures of a business. There are some fees and charges one has to bear to form an Illinois LLC. LLCs have pass-through taxation. Hence, your Illinois LLC won’t bring you a massive tax burden. Here are some of the fees and taxes are needed to be paid while forming an LLC in Illinois,

Fees/TaxAmount to be Paid
Name Reservation Fee$25
Articles of Organization Fee$150
LLC Annual Fee$75
Sales Tax6.25%

In Illinois, an LLC name reservation is not mandatory. You can register your LLC name at the time of registering your LLC. If you wish to hold the name for some time without registering your LLC, then you can do that online. Your LLC name will be reserved for 90 days without registering your LLC. It can be done by paying $25.

In Illinois, an Annual Report has to be produced every year. It costs $75. Also, the LLC has to pay 6.25% of Sales Tax to the state government. Read our guide on LLC costs in Illinois for more information.

Illinois Foreign LLC

If you are interested in forming a Foreign LLC in Illinois then you need to file the Certificate of Foreign LLC to the Illinois Secretary of State. Foreign LLCs allow you to operate your business in more than one state. Along with the Certificate of Foreign LLC, you need to submit some more documents like the Certificate of Good Standing, etc. to the Illinois SOS to form your foreign LLC in Illinois. To know more in detail, check out our guide on Illinois Foreign LLC.

Reasons to Start an LLC in Illinois

With the Gross State Product worth $336 Million, Illinois has gained a position in the Top 10 business states by Forbes. LLCs in general have a lot of benefits when it comes to business taxes. You as an LLC do not have to pay any federal taxes. Apart from fewer tax liabilities, LLCs can have a business credit card to separate their personal and professional expenses. Other than the LLC filing fee paid to the state government agency, not much of the expenditure is involved to start an LLC in Illinois.

In Illinois, the LLC start-up costs are much lesser than in other prominent states. There are incentives and business funding options by the government given to businesses such as any woman-owned business and all. These incentives help LLCs to cover annual costs and other costs to run a successful business. Some of the benefits are given below, 

Reporting is made biennial by the government

Reporting of any business by the government takes a considerably high time. It nearly disturbs the whole working set-up of a company, but if you have LLC in Illinois, you don’t have to care about it much. Here the government has set the reporting of an LLC twice a year which makes it easy for the member, and above that, the fees are only around $32 if a person is filing the report online.

Continuous decreasing rates of Income-tax 

In Illinois, the tax is only required to pay by the LLC members on their personal profits. This rate of personal income tax is meager, i.e., 3.23%. It means that the LLC profits don’t matter if your profit is 100,000 USD or 10,000,000, then the tax one member has to pay will be the same for all the levels of people. Read more on Illinois’ classification of LLC Tax.

Hoosier Business Investment Tax Credit 

The Hoosier Business Investment is an incentive-based program that is provided to the LLCs, mainly the start-ups. The main motive of this Tax credit is to provide some investment to the start-ups and support the task of job creation of the states through these LLCs. This will improve the financial status of the state and also the standard of living.

No sales taxes are applied

Many states impose sales taxes on their LLCs, like taking nickel and dime from members’ pockets. But in Illinois LLC, these taxes are not imposed on them, which means that they only have to pay the basic sales tax, which leaves them with plenty of money for hiring and research, and development.

Leading Businesses in Illinois

Are you looking to start an LLC in Illinois? If yes, then you have to think of a good and profitable business idea. If you cannot figure out the best flourishing industry in Illinois, here is the best business.

Exports Business

The export business is thriving very well in Illinois state due to the state’s favorable rules and regulations. That is why more companies have started entering the field of exporting business. The state’s primary export product is machinery, chemical, and equipment used in transportation and agricultural processing.

The state has exported a material of 53,000 million dollars which shows the golden opportunity offered by this niche. So, don’t waste any time further and decide the product you want to export to the state.

Manufacturing Business

Illinois is known worldwide, second in manufacturing food products and first in the construction business. The state has the most significant portion of countries manufacturing share of construction machinery, making the manufacturing business a fair choice.  Chemicals used in the pharmaceutical industry are also made on a larger scale in the country.

Mining business

Rocks found in Illinois State are known for being the best source of coal, minerals, and petroleum. According to the census, more than 8 billion tonnes of coal are produced in the state. Also, the amount of petroleum gained from this mining is around 4 billion barrels. These businesses are more than enough for a person to make up their mind regarding starting a mining business.


The state is a hose of 1500 different fertile soil types, which can help you grow any simple ornamental crop.  If a person is interested in agriculture, they can also enter the business field and start farming-related businesses.

For a small investment business, here are some options.

  • Restaurant and food business
  • Departmental stores·        
  • Digital marketing services

Illinois LLC Formation Review

Time needed: 5 minutes.

Just to recap, here are the easy steps again when forming an LLC in Illinois. Click on the steps in this list to read the full detail.

  1. Name your Illinois LLC

    The first thing you must do is to choose a company name, which should be unique, easy to find, and available in the state.
    name your llc

  2. Choose a Registered Agent

    In Illinois, it is mandatory to select a registered agent for your LLC. Get a professional Registered Agent from LLC formation services like NorthWest Registered Agent to get things done hassle-free.
    registered agent

  3. File a Formation Certificate

    Filing a formation certificate is necessary when forming an LLC in Illinois. Depending on the state, it could be called any of the following: Certificate of Formation, Articles of Organization, or Certificate of Organization.
    articles of organization

  4. Create an Operating Agreement

    An operating agreement is not a strict requirement in Illinois but something encouraged when you start an LLC to avoid future conflicts.
    operating agreement

  5. Get an EIN

    The Employer Identification Number (EIN), also called Federal Tax Identification Number, serves to identify a business entity like a social security number but for a company.
    file EIN for llc

How Fast Can I Form an LLC in Illinois

You can get the application processed within 7-10 business days if filing online. However, in case of filing via mail, it usually takes 10-15 business days.

You might be wondering, “How fast can I form an LLC in Illinois?”. If so, you’ve come to the right place. Here are some tips to get you started. First, check whether your business name is already registered in Illinois. Otherwise, you’ll need to get a business license. In addition, you’ll need a business license if you plan to advertise or use signs. If you’re planning to open an office in Illinois, you’ll also need to acquire a certificate of registration from the state.

There are several ways to get your LLC approved in Illinois. Depending on how you file, it can take seven to ten business days if you file online. Otherwise, it could take anywhere from 4-5 weeks. If you want to get your LLC approved faster, you can pay for expedited processing, which is when the state reviews and enters your filing into its system within a few days. Upon approval, you’ll get your documents back via mail or electronically.

Once you’ve completed the process, you’ll need to choose a registered agent. You can either choose a personal agent or a service that offers registered agent services. Many people opt for a registered agent service. One such service is Northwest Registered Agent. Using a registered agent service lets you use their address as the registered office for your LLC. They will accept important letters and service of process for you and forward these communications to you and your members. They also cost very little, so you might want to choose one that suits you best.

Before filing your documents with the state of Illinois, you’ll need to choose your registered agent. This person is responsible for receiving any notices from the government and lawsuits filed against your business. According to Illinois law, every LLC must have a registered agent, and you’ll need to designate one when you file your articles of organization. There’s a small fee involved, which you should expect to pay when filing online.

Once you’ve filed your articles of organization, the next step is to open a business bank account. You’ll need an EIN and a copy of your articles of organization. You’ll also need copies of your business licenses and documents similar to banking resolution. Your business bank account will make it easier to get additional financing for your company. So, how fast can I Form an LLC in Illinois? If you have any questions, visit TRUiC today.

Once you’ve filed your documents, you can begin the process of adding members. It’s easy to add members to an LLC, but make sure to consult a qualified accountant to help you get everything set up properly. You can also hire a professional accountant or consultant to help you with the business administration and financial aspects. These professionals can manage your company’s finances and handle day-to-day tasks. When forming an LLC, it’s important to keep these three essential documents in mind.


Can I file an LLC in Illinois by myself?

If you are a resident of Illinois, then you can file your LLC by yourself. However, it is always worth having a professional than doing it yourself to handle legal complexities, paperwork, and other documentation.

What is the cost of forming an LLC in Illinois in a year?

Apart from the formation fee of $150 (domestic LLC) and $150 (foreign LLC), LLC costs in Illinois include $75 for Annual Reports every year. LLCs are liable to pay sales tax of 6.25% every year

How long does it take to get an LLC in Illinois?

It takes 10 business days to get an Illinois LLC if you file it online or via mail. If you hire a professional LLC service, then it might take less than that. We recommend Tailor Brands which has impeccable turnaround time.

How to renew my LLC in Illinois?

Every year all the LLCs have to submit an Annual Report and pay $75 to the Illinois Secretary of State and renew the LLC. It is mandatory to renew your LLC every year.

What is the tax structure for an LLC in Illinois?

Generally, for the LLCs, it is a default tax structure. Once you will obtain the EIN, you will get the various tax structure options to select. Sometimes LLCs choose S Corp to reduce federal tax burdens. Read more on the Illinois Classification of LLC Tax.

In Conclusion

LLCs are easier to establish than other business structures. Small businesses, especially start-ups can easily start an LLC in Illinois at a bare minimum cost. LLCs have a ‘pass-through taxation’ advantage for which they are excluded from certain taxes. The formation of limited liability companies requires much lesser documents and legal processes. Share your queries with us, and leave a comment below.

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