Factors to Consider Before Starting an S Corp
Before forming an S corp, you have to consider the following factors:
- Is an S corporation the best strategy for your business?
- S corporation requirements and restrictions
- Why an LLC is the best structure for the S corp tax status
- Are S corp tax advantages right for you?
Is an S Corporation the Best Strategy for Your Business?
For help with choosing the right structure for your business, visit our Choosing a Business Structure guide.
S Corporation Requirements
The IRS requires that businesses that elect the S corp status:
- Have 100 shareholders or less
- Are domestic LLCs or corporations
- Issue only one class of stock
- Shareholders are U.S. citizens or permanent resident aliens
- Are owned by private individuals
Read our What is an S Corporation to learn more about S corps
Why an LLC Is the Best Structure for the S Corp Tax Status
As entrepreneurs, we believe that starting an LLC is the best way for forming an S corporation because any advantages of forming a corporation are negated by S corp restrictions. LLCs are also easier to maintain than corporations.
Are S Corp Tax Advantages Right for You?
You need to know if the S corp tax status versus a default LLC tax status will be better for your business. To fully understand the tax advantages of an S corp, read our LLC vs. S corp guide.
How to Form an Illinois S Corp
There are two main ways to start an S corp:
- By forming an LLC and electing S corp tax status from the IRS when you request your employee identification number (EIN)
- By forming a corporation and electing S corp status from the IRS
We recommend not starting a corporation with the S corp tax status because the S corp negates all of the benefits of a corporation.
Recommended: If you have an existing LLC, visit our How to Convert an LLC to S Corp guide.
Steps for Forming an LLC and Electing S Corp Status in Illinois
Starting an Illinois LLC and electing S corp tax status is easy. You can use our guides to start an LLC with the S corp status yourself, or you can hire a service provider like ZenBusiness to guide you through this process.
There are five basic steps to start an LLC and elect S corp status:
Step 1: Name Your LLC
Step 2: Choose a Registered Agent
Step 3: File the Articles of Organization
Step 4: Create an Operating Agreement
Step 5: Get an EIN and File Form 2553 to Elect S Corp Tax Status
Step 1: Name Your LLC
Choosing a company name is the first and most important step in starting your LLC in Illinois.
Be sure to choose a name that complies with Illinois naming requirements and is easily searchable by potential clients.
1. Follow the naming guidelines for an Illinois LLC:
- Your name must include the phrase “limited liability company,” or one of its abbreviations (LLC or L.L.C.). If it is classified as a “low-profit LLC,” it must contain "L3C."
- Your name cannot include words that could confuse your LLC with a government agency (FBI, Treasury, State Department, etc.).
- Your name cannot include any of the following terms: Corporation, Corp., Incorporated, Inc., Ltd., Co., Limited Partnership, and L.P.
- Your name must be the name under which your LLC conducts business unless you register for an assumed name.
- Your name cannot contain any word or phrase (e.g. trust, trustee, fiduciary) that indicates or implies that your LLC is in the business of a corporate fiduciary unless permitted by the Secretary of Financial and Professional Regulation. If the LLC is organized to accept or execute trusts, the name must contain the word “trust.”
- The name may not contain any word or phrase that is restricted by any other state statute (e.g., LLCs are not permitted to operate as banks or insurers in Illinois).
- Your name must be distinguishable from any existing business in the state. This includes Illinois reserved names.
You can also read the Illinois state statute about LLC naming guidelines for more information.
2. Is the name available in Illinois? You can use the business name search on the Illinois Secretary of State website to see if your desired LLC name is available.
3. Is the URL available? We recommend checking to see if your business name is available as a web domain. Even if you don't plan to create a business website today, you may want to buy the URL in order to prevent others from acquiring it.
Find a Domain Now
Step 2: Choose Your Illinois Registered Agent
You must elect a registered agent for your Illinois LLC.
An LLC registered agent will accept legal documents and tax notices on your LLC's behalf. You will list your registered agent when you file your LLC's Articles of Organization.
Many business owners choose to hire a registered agent service. Many of these services will form your LLC for a small fee and include the first year of registered agent services for free.
Step 3: File the Illinois LLC Articles of Organization
The Illinois Articles of Organization is used to officially register an LLC.
OPTION 1: File Online With Cyberdrive Illinois
- OR -
OPTION 2: File Form LLC-5.5 by Mail
State Filing Cost: $150 online and $75 by mail, payable to the Secretary of State (Nonrefundable)
Department of Business Services
Limited Liability Division
501 S. Second St., Rm. 351
Springfield, IL 62746
Step 4: Create an LLC Operating Agreement
An LLC operating agreement is a legal document that outlines the ownership and member duties of your LLC.
For more information, read our Illinois LLC Operating Agreement guide.
Our operating agreement tool is a free resource for business owners.
Step 5: Get an EIN and Complete Form 2553 on the IRS Website
An EIN is a number that is used by the US Internal Revenue Service (IRS) to identify and tax businesses. It is essentially a Social Security number for a business.
EINs are free when you apply directly with the IRS.
Elect S Corp Tax Status
During the online EIN application, the IRS will provide a link to Form 2553, the Election By a Small Business form.
Visit our Form 2553 Instructions guide for detailed help with completing the form.
This is the form to elect S corp tax status for your LLC:
Ready to start saving on your taxes?
ZenBusiness makes it easy to start your Illinois S corp or convert your existing LLC to S corp status. Click the button below to get started with a guided questionnaire to find the right tools for you.
S Corp Election Deadline - Filing Form 2553
- New business (LLC or corporation)
- File Form 2553 2 months and 15 days or before, after starting your business
- Existing businesses (LLC or corporation)
- For S corp status the following year, file Form 2553 anytime the year before (e.g. file form in 2022 anytime to be taxed as S corp in 2023)
- Existing Businesses Electing S corp status in the same year
- File Form 2553 within the first 2 months and 15 days of the same year or before (meaning, you must file between January to March 15 and no later. If you file by March 16 or after, you'll miss the deadline and have to wait for the following year)
Steps to Take After Forming an Illinois S Corp
Start an S Corp FAQ
What is an S corp?
An S corporation (S corp) is a tax designation for which an LLC or a corporation can apply.
Is an S corp an LLC?
No. An S corp is a tax designation for which an LLC or a corporation can elect.
How do you form an S corp?
You can form an S corp by filing Form 2553 with the Internal Revenue Service (IRS).
What are the requirements for an S corp?
S corps must meet four requirements:
- They can have no more than 100 shareholders.
- All shareholders must be private individuals (not other business entities).
- Shareholders cannot be nonresident aliens.
- The business may only issue one class of stock-this means all members must have the same distribution amount.
What are the benefits of an S corp?
Owners of S corps are considered employees of their company and can save thousands of dollars on self-employment taxes as a result.
Are taxes for LLCs and S corps the same?
No. The default taxes for an LLC and taxes for an S corp are not the same.
With an S corp, owners pay personal income tax and self-employment tax on a predetermined salary. They may then withdraw any remaining profits from the business as a “distribution,” which isn’t subject to self-employment tax.
With an LLC, all company profits pass through to the owners’ personal tax returns, and then the owners must pay personal income tax and self-employment tax on the entire amount.
Both LLCs and S corps benefit from a provision in the Tax Cuts and Jobs Act of 2017 that allows qualifying owners of pass-through entities to deduct 20% of qualified business income (QBI) from their tax returns. However, for S corps, the deduction doesn’t apply to profits paid out as wages.
What is a reasonable salary for an S corp?
Unlike the default LLC business structure, in which owners must pay self-employment tax on all of the company’s profits, owners of S corps are considered employees of the business and only have to pay self-employment tax on a salary they receive. Any other money they take from the company’s profits in the form of disbursements isn’t subject to self-employment tax.
S corp owners are required to earn a “reasonable” salary, which basically means a fair market rate based on the individual’s qualifications as well as their duties and responsibilities at the company. The purpose of this requirement is to prevent S corp owners from paying themselves an artificially low salary in order to pay less self-employment tax.
What is a distribution?
A distribution is a dividend that a shareholder/owner can take from the business profits that remain after a company pays all of its employee salaries. Shareholders must pay personal income tax on distributions, but distributions aren’t subject to self-employment tax.
What is pass-through taxation?
Pass-through taxation is a system of taxation that generally applies to sole proprietorships, partnerships, LLCs, and S corps. In this system, the profits or losses of the business are not taxed at the business level. Instead, they pass through to the owners’ personal tax returns and are taxed at each owners’ personal income tax rate.
What is the S corp tax rate?
There’s no corporate tax rate for S corps. Instead, owners of S corps pay personal income tax on the company’s profits. This rate depends on each owner’s personal income tax bracket.
Can I still use my DBA name if I elect to be an S corp?
LLCs and corporations that operate under a “doing business as” (DBA) name can choose the S corp election.