Verdict: Starting a nonprofit in Illinois is doable on your own for a simple charitable mission. The critical insight most guides miss: the Illinois AG CO-1 charitable registration, not the IRS determination letter, is the legal gate to fundraising.
What works: File your Articles of Incorporation, get your EIN the same week, and submit your AG CO-1 registration as soon as you're ready to ask for donations. The IRS 27-month retroactive rule means donations you raise during the federal review become tax-deductible once your determination letter arrives.
What doesn't: Waiting for the IRS Form 1023 review before you start fundraising. Most first-time founders sit idle for months when they don't have to.
Best for: A first-time, all-volunteer Illinois founder with a durable charitable mission who expects under $50,000/year in revenue for the first three years (1023-EZ-eligible), with three unrelated directors ready to serve.
Worth considering if: Your project is short-term or one-time (a single campaign, a one-off raffle), a fiscal sponsorship arrangement with an existing Illinois 501(c)(3) will get you tax-deductible donor status without standing up your own entity.
Starting a nonprofit in Illinois is doable on your own for a simple charitable mission. The expensive mistake almost every Illinois founder makes isn't a missed form. It's sitting through the IRS Form 1023 review with zero revenue, when you don't have to.
This guide walks you through the same 12 steps everyone else lists, but reframed around what actually matters: sequencing. Once your Illinois Attorney General CO-1 charitable registration is on file, you can legally start asking for donations. You do not need to wait months for an IRS determination letter.
Table of contents
How to start a nonprofit in Illinois: quick overview
Here is the full 12-step sequence, with rough time and cost estimates for each. Total realistic timeline: 2 to 8 months. Most of that wait is the federal 501(c)(3) review; almost everything else is days, not months.
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| 1 | Define your mission and research the landscape | 2 to 4 weeks | Free |
| 2 | Choose and reserve your Illinois nonprofit name | 1 to 3 days | Free to search; small fee for optional reservation (check IL SOS) |
| 3 | Recruit at least three directors | 2 to 6 weeks | Free |
| 4 | Appoint an Illinois registered agent | 1 day | Free if you use your own IL address |
| 5 | File Articles of Incorporation (NFP 102.10) | 1 to 2 weeks | Check current fee on IL SOS |
| 6 | Obtain your federal EIN from the IRS | Same day, online | Free |
| 7 | Draft bylaws and hold first board meeting | 1 to 2 weeks | Free |
| 8 | Apply for federal 501(c)(3) status (Form 1023 or 1023-EZ) | ~3 weeks (1023-EZ, 80% within 22 days) to several months (1023) | $275 (1023-EZ) or $600 (1023) |
| 9 | Register for Illinois state tax exemptions | 2 to 4 weeks | Free |
| 10 | Register for charitable fundraising (AG CO-1) | 2 to 4 weeks | Check current fee on IL AG site |
| 11 | Start fundraising (the runway begins) | Day CO-1 clears | Free with Zeffy |
| 12 | Stay compliant (annual reports, 990, AG renewal) | Ongoing | Annual filings |
For a small Illinois nonprofit: your single biggest line item will almost certainly be the IRS user fee ($275 or $600). The EIN is free. Most state filings are modest. Confirm every current fee on the linked primary source before you mail a check.
Step 1: Define your mission and research the landscape
Before you fill out a single form, get clear on what your nonprofit will actually do and whether the work is already being done well by someone else.
- The community need: What specific problem are you solving, and for whom?
- The landscape: Search Candid (formerly GuideStar) and your local United Way directory for Illinois nonprofits already working in your space. If three other groups in your county already do this well, partnership beats duplication.
- Your mission statement: One or two sentences that name who you serve and what you do for them.
Three questions to answer before you file anything:
- 1. Is this mission durable for years, or is it a one-time project?
- 2. Can you recruit three unrelated directors who will actually show up?
- 3. Could a fiscal sponsorship with an existing Illinois 501(c)(3) serve you better than standing up your own entity?
If the answers are durable, yes, and no, keep going. If your project is short-term or one-time, a fiscal sponsor gets you tax-deductible donor status without the multi-agency lift.
For a small Illinois nonprofit: if this is a single fundraiser or a one-year project, do not stand up a 501(c)(3). Find a sponsor and start sooner.
Step 2: Choose and reserve your Illinois nonprofit name
Illinois law (the General Not For Profit Corporation Act) requires your name to be distinguishable from every other entity already on file with the state, and your name must include one of the words "corporation," "company," "incorporated," or "limited" (or an abbreviation).
- 2. If you need time before you incorporate, you can reserve the name. Confirm the current fee and hold period directly on the Illinois Secretary of State site before filing — fees change.
- 3. Pick something that describes what you do, is easy to spell, and leaves room to grow into adjacent work.
For a small Illinois nonprofit: the name reservation is optional. Most founders skip it and just file the Articles when they're ready.
Step 3: Recruit your board of directors
Illinois requires a board of directors for nonprofit corporations. Confirm the current minimum on the Illinois General Assembly site (General Not For Profit Corporation Act) before you finalize your board. The widely cited minimum is three, and directors do not need to be Illinois residents.
Your directors carry real fiduciary duties under Illinois law: the duty of care (show up informed), the duty of loyalty (no self-dealing), and the duty of obedience (follow the mission and the law).
Recruit directors who bring something different to the table: someone with finance experience, someone with community connections, someone close to the population you serve. The three should not be related by blood, marriage, or business — the IRS pays attention to that on the 1023.
For a small Illinois nonprofit: if you cannot get three unrelated directors who will actually attend quarterly meetings, you are not ready to incorporate yet. Slow down and recruit.
Step 4: Appoint an Illinois registered agent
Your registered agent is the human (or service) the state mails legal papers to. The agent must have a physical Illinois street address (no P.O. boxes) and be available during regular business hours.
- DIY: You, a director, or another volunteer with an Illinois address can serve as agent. Cost: free.
- Professional service: Commercial registered agent services exist if you want privacy or don't have a stable Illinois address. Pricing varies — check current rates with named providers directly before signing.
For a small Illinois nonprofit: use your own address (or a co-founder's). The professional service is only worth it if you genuinely do not have a stable Illinois address.
Step 5: File Illinois Articles of Incorporation (NFP 102.10)
This is the filing that legally creates your nonprofit. Use Form NFP 102.10 on the Illinois Secretary of State site. You can file by mail or online — confirm the current mail and online filing fees on the SOS site before submitting.
Your Articles must include:
- The specific charitable purpose (be concrete: "to provide tutoring to K–8 students in Cook County" beats "to help the community")
- Name and address of your Illinois registered agent
- Names and addresses of your initial directors (at least three)
- A 501(c)(3) purpose clause and a dissolution clause that distributes assets to another 501(c)(3) — the IRS will look for these on the 1023, so put them in now
Is this official mail or a scam?
Within weeks of incorporating, you'll start getting mail. Some is real and required. A lot of it is solicitation dressed up to look official. Real Illinois mail you should respond to includes:
- Communications from the Illinois Secretary of State about your annual report
- Communications from the Illinois Attorney General, Charitable Trust Bureau about your CO-1 registration or renewal (CO-2)
- Anything from the IRS about your EIN or 501(c)(3) application
Anything that asks you to pay a third party (not the state) for a "Certificate of Status," "Certificate of Good Standing service," or "compliance kit" is almost always a solicitation, not a legal requirement. When in doubt, go directly to the Illinois Secretary of State or Attorney General website and call the listed number.
For a small Illinois nonprofit: file online if it's available — it's faster and cheaper than mail. Save the stamped/returned Articles as a PDF the moment you get them. The bank will ask.
Step 6: Obtain your federal EIN
An EIN (Employer Identification Number) is your nonprofit's tax ID. You'll need it to open a bank account, file the 1023, and apply for state tax exemption.
- 2. Complete the online application. It takes about 15 minutes.
- 3. You receive your EIN immediately at the end of the session. Save the confirmation PDF.
The EIN is free. Anyone charging you for one is selling something the IRS gives away. And yes — you can (and should) get the EIN before opening a bank account. The bank will ask for both the EIN letter and your stamped Articles.
For a small Illinois nonprofit: do this the same week your Articles come back stamped. It's a 15-minute task and unblocks everything downstream.
Step 7: Draft your nonprofit bylaws
Bylaws are your internal rulebook. They are not filed with the state, but the IRS will ask for them with your 1023, and your board needs them to operate.
At minimum, your Illinois bylaws should cover:
- Board structure: number of directors, terms, qualifications, how to add or remove members
- Officer roles: president, treasurer, secretary at minimum
- Meeting requirements: how often the board meets, notice requirements, quorum rules
- Voting and decision-making: what requires a simple majority vs. a supermajority
- Conflict of interest policy: directors and officers disclose conflicts and recuse themselves from related votes (the IRS specifically looks for this)
- Amendment process: how the bylaws themselves get changed
- Dissolution: how assets get distributed if the nonprofit closes (must go to another 501(c)(3))
Hold your first official board meeting after you adopt the bylaws. Record the minutes — that's your paper trail.
For a small Illinois nonprofit: use a free bylaws template from a reputable source (the National Council of Nonprofits has good ones), then have one director with detail orientation read it word by word. Pay for a lawyer only if you have an unusual structure.
Step 8: Apply for federal 501(c)(3) tax-exempt status
This is the federal filing that gives you tax exemption and lets donors deduct their gifts. There are two forms — and the right one depends on how big you expect to be.
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| Eligibility | Gross receipts at or below $50,000 in each of the past 3 years AND projected at or below $50,000 in each of the next 3 years; total assets at or below $250,000 (IRS Form 1023-EZ Eligibility Worksheet). Some org types are excluded regardless of size. | Any 501(c)(3) applicant; required if you don't meet 1023-EZ eligibility. |
| Processing time | The IRS issues 80% of 1023-EZ determinations within 22 days, about 3 weeks (IRS "Where's My Application"). | Several months. Confirm the current published estimate on the IRS "Where's My Application" page when you file. |
| User fee | $275 (IRS user fee schedule) | $600, flat — regardless of your size (IRS user fee schedule) |
If you're projecting under $50,000/year for the next three years, the 1023-EZ is built for you. Most first-time, all-volunteer Illinois founders are 1023-EZ-eligible and don't realize it. Read the eligibility worksheet line by line before you default to the full 1023.
The 27-month rule (this is the lever):
If you file Form 1023 (or 1023-EZ) within 27 months of your date of incorporation, the IRS recognizes your tax-exempt status retroactively to your incorporation date. That means every donation you receive between incorporation and your IRS determination letter is treated as tax-deductible once the letter arrives. This is why Form 1023 is not the legal gate that lets you fundraise. The Illinois AG CO-1 charitable registration is.
For a small Illinois nonprofit: 1023-EZ is almost certainly the right form. $275 and ~3 weeks beats $600 and several months by a wide margin.
Step 9: Register for Illinois state tax exemptions
Illinois state tax exemption is a two-part process, and one part is automatic.
- Income tax exemption: Once the IRS issues your 501(c)(3) determination letter, your Illinois corporate income tax exemption is automatic. You don't file a separate state form.
- Sales tax exemption (Form REG-1): Apply for a sales tax exemption (E) number with the Illinois Department of Revenue by filing Form REG-1. Once approved, qualifying purchases for your nonprofit's exempt purpose are exempt from Illinois sales tax. Day-to-day purchases for the mission (supplies, equipment) generally qualify; purchases for unrelated commercial activity don't.
For a small Illinois nonprofit: file REG-1 the same month your IRS letter arrives. The sales tax savings on supplies adds up faster than you expect.
Step 10: Register for charitable solicitation (CO-1) — the legal gate to fundraising
This is the most underrated step in the whole sequence. Every other Illinois guide treats CO-1 as a side note. It's not. It's the legal gate that lets you start fundraising.
If your nonprofit will solicit donations in Illinois, you must register with the Illinois Attorney General Charitable Trust Bureau by filing Form CO-1 (with the required attachments: Articles of Incorporation, bylaws, IRS application or determination, opening financials). Once your CO-1 is on file, you are legally registered to solicit donations in Illinois — even before your IRS determination letter arrives.
This is the runway. The IRS is reviewing your 1023. You're not frozen. You're open for donations the day your CO-1 clears, and (per the 27-month rule) those donations become tax-deductible retroactively once your IRS letter arrives.
Confirm the current CO-1 filing fee and any exemptions (some small or religious organizations qualify for limited exemptions) directly on the Illinois Attorney General Charitable Trust Bureau site before you mail your filing. Fees and exemption thresholds change.
For a small Illinois nonprofit: file CO-1 the moment you're ready to ask for a dollar. Don't wait for the IRS letter. You're leaving months of donor momentum on the table if you do.
Step 11: Launch your fundraising — use the IRS wait as a runway, not a freeze
Your CO-1 is on file. The IRS is reviewing your 1023. You can start raising money today.
This is the moment most Illinois founders sit on their hands for months waiting for a determination letter. Don't. Under the IRS 27-month retroactive recognition rule, every donation you receive in this window becomes tax-deductible retroactively once your IRS letter arrives. Your donors get their deduction. Your nonprofit gets a running start.
What to set up this week:
- Recurring monthly giving. The single most predictable revenue lever for a brand-new nonprofit. Set up recurring monthly giving so you have a baseline you can count on during the IRS wait.
- Event ticketing for a launch event. A kickoff event introduces your nonprofit to the community and gets your first 50 donors on the books. Free event ticketing means 100% of ticket revenue goes to the mission.
Zeffy is used and loved by 100K+ nonprofits and has helped them raise $2B+. We are the fundraising layer that picks up the moment your paperwork is in motion.
Charitable gaming, raffles, and local permits
If your fundraising will include games of chance (raffles, bingo, charity games), Illinois requires separate licensing on top of your CO-1. Charitable games are licensed through the Illinois Department of Revenue, Bureau of Charitable Games under the Illinois Charitable Games Act. Raffles are typically licensed by your local municipality or county, not the state.
Confirm the current charitable gaming license fee on the Illinois Department of Revenue site, and confirm raffle licensing rules with your city or county clerk before selling tickets. For Illinois-specific raffle rules, see our guide to Illinois raffle laws.
Once licensed, Zeffy provides free raffle and ticketing software to run the fundraiser.
How an Illinois nonprofit raised $50,000 with a free raffle
The St. Germaine Catholic School, an Illinois nonprofit focused on K–8 education, wanted a creative fundraiser to break out of the standard one-time-donation routine. They built a raffle with a grand prize most Illinois families would actually want: two tickets to the Taylor Swift Eras Tour.
Most raffle ticketing platforms charged setup fees, monthly fees, and processing fees. St. Germaine found Zeffy instead. They built a custom raffle ticket page where supporters bought as many tickets as they wanted, with no processing fees taken out, and used Zeffy's free donation forms, automatic receipts, and event ticketing alongside.
The result: $50,000 raised. $2,500 saved in fees. Every dollar went to the school's programs.
For a small Illinois nonprofit: the fastest way to find out whether your community will support you is to put a donation page up the week your CO-1 clears and ask. You don't need a perfect plan. You need a working URL.
Step 12: Maintain ongoing compliance (stay compliant)
Once you're up and running, three filings keep you in good standing. Keep this calendar somewhere your treasurer will actually look at it.
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| Illinois Annual Report | Illinois Secretary of State | Before the anniversary of your incorporation date, every year | Confirms your directors, registered agent, and address are current. Modest fee. |
| Form 990 (or 990-N, 990-EZ) | IRS | 15th day of the 5th month after your fiscal year end (May 15 if you're on a calendar year) | Your federal information return. 990-N is a quick e-postcard for organizations with gross receipts at or below $50,000. |
| AG Charitable Registration Renewal (Form AG990-IL / CO-2) | Illinois Attorney General, Charitable Trust Bureau | Within 6 months of your fiscal year end | Renews your charitable solicitation registration. Required as long as you solicit donations in Illinois. |
One thing to clear up: annual reports go to the Illinois Secretary of State, not the IRS. Form 990 goes to the IRS. They are two different filings, on two different schedules, to two different agencies. Mixing them up is the most common reason Illinois nonprofits fall out of good standing.
Miss your Illinois annual report and the state will eventually administratively dissolve your nonprofit — and once that happens, reinstatement is a process you don't want. Miss your Form 990 for three consecutive years and the IRS automatically revokes your tax-exempt status.
Keep your donor records clean. Your fundraising platform should be your source of truth feeding both AG renewal numbers and Form 990 schedules. With Zeffy, every donation is logged, receipted, and exportable — so your treasurer isn't reconstructing the year from a stack of bank statements in March.
For a small Illinois nonprofit: put the three filing deadlines on a shared calendar the same week you incorporate. Set reminders 60 days out. The single biggest compliance failure for small Illinois nonprofits is not knowing a deadline existed.
Illinois nonprofit startup costs: what you'll actually pay
The total cost to start an Illinois nonprofit depends on which IRS form you file and which optional services you use. Confirm every state and federal fee on the listed primary source — fees change.
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| Articles of Incorporation (NFP 102.10) | Mail or online — check current fee | Illinois Secretary of State |
| Name reservation (optional) | Check current fee | Illinois Secretary of State |
| EIN | $0 | IRS |
| Form 1023-EZ user fee | $275 | IRS user fee schedule |
| Form 1023 user fee (full) | $600 flat | IRS user fee schedule |
| Charitable registration (CO-1) | Check current fee | Illinois Attorney General, Charitable Trust Bureau |
| Charitable gaming license (if applicable) | Check current fee | Illinois Department of Revenue, Bureau of Charitable Games |
| Registered agent (optional, commercial) | Market rate | Direct from named providers |
| Legal help (optional) | Varies widely | Direct quote |
For a 1023-EZ-eligible Illinois founder doing the work themselves and serving as their own registered agent, the federal $275 user fee is by far the biggest line item. State fees are modest by comparison.
For a small Illinois nonprofit: budget the $275 IRS fee plus a few hundred dollars for state filings and the first year's AG renewal. If someone's quoting you four figures to "set up your nonprofit," they're charging for paperwork you can do yourself in a weekend.
How long does it take to start a nonprofit in Illinois?
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| Planning, board recruitment, bylaws | 2 to 4 weeks |
| Articles of Incorporation filing and approval | 1 to 2 weeks |
| EIN (same day, online) | 1 day |
| Form 1023-EZ federal review | ~3 weeks (IRS: 80% within 22 days) |
| Form 1023 federal review | Several months — confirm current estimate on IRS "Where's My Application" |
| Illinois state tax exemption (REG-1) | 2 to 4 weeks |
| AG CO-1 charitable registration | 2 to 4 weeks |
| Total realistic timeline | 2 to 8 months |
Most of the variance is in the federal 501(c)(3) review. A 1023-EZ-eligible founder, working briskly, can be set up federally in ~6 weeks. A full 1023 organization should plan for several months. Either way, you can start fundraising the week your AG CO-1 clears, which can happen long before your federal letter arrives.
For a small Illinois nonprofit: the practical end of the runway is "CO-1 clears," not "IRS letter arrives." Plan your launch around the first one.
FAQs - Starting a nonprofit in Illinois
How much does it cost to start a nonprofit in Illinois?
The two biggest line items are the IRS user fee ($275 for Form 1023-EZ or $600 flat for Form 1023) and your state filing fees with the Illinois Secretary of State and Attorney General. A 1023-EZ-eligible founder serving as their own registered agent should plan on a few hundred dollars total. Confirm every current state fee on the IL Secretary of State and IL Attorney General sites before mailing a check.
What's the difference between Form 1023 and Form 1023-EZ?
Form 1023-EZ is the streamlined application for smaller organizations: gross receipts must not exceed $50,000 in any of the past 3 years AND projected not to exceed $50,000 in any of the next 3 years, with total assets at or below $250,000 (per the IRS Form 1023-EZ Eligibility Worksheet). The user fee is $275 and the IRS issues 80% of determinations within 22 days. Form 1023 is the full application — required if you don't qualify for 1023-EZ — with a flat $600 user fee and a review timeline of several months.
Do I need a lawyer to start a 501c3 in Illinois?
No. For a simple charitable mission, an all-volunteer founder can complete every step (Articles of Incorporation, EIN, bylaws, 1023 or 1023-EZ, REG-1, CO-1) without a lawyer. You may want legal help if your structure is unusual: a chapter of an existing organization, complex earned-revenue plans, a hybrid for-profit/nonprofit setup, or substantial property donations at formation.
Can my Illinois nonprofit accept donations before getting 501(c)(3) status?
Yes — once your Illinois AG CO-1 charitable registration is on file, you can legally solicit donations in Illinois, even while your IRS Form 1023 is still under review. Under the IRS 27-month retroactive recognition rule, if you file Form 1023 within 27 months of your incorporation date, your tax-exempt status reaches back to incorporation. Donations received during the wait become tax-deductible retroactively once your IRS determination letter arrives. CO-1, not Form 1023, is the legal gate to fundraising.
What happens if I miss my Illinois annual report deadline?
If you miss the deadline for your Illinois Annual Report (filed with the Illinois Secretary of State before the anniversary of your incorporation), the state will eventually administratively dissolve your nonprofit. Reinstatement is possible but involves additional filings and fees. Set a calendar reminder 60 days before your filing anniversary and treat it like a hard deadline.
How do I know my Illinois incorporation is actually complete?
You're officially incorporated once the Illinois Secretary of State returns a stamped copy of your Articles of Incorporation (NFP 102.10). If you filed online, you'll receive a confirmation PDF. If you filed by mail, you'll receive the stamped Articles back in the mail. Save that PDF or scan — your bank, the IRS, and the Illinois Attorney General will all ask for it.
How many board members are required for an Illinois 501c3?
Illinois requires a board of directors for nonprofit corporations under the General Not For Profit Corporation Act. The widely cited minimum is three directors. Confirm current requirements on the Illinois General Assembly site before finalizing your board. Directors do not need to be Illinois residents, but they should not be related to each other by blood, marriage, or business — the IRS pays attention to board independence on the 1023.
Can I pay myself as the founder of an Illinois nonprofit?
Yes, within limits. A nonprofit founder who does real work for the organization can receive a reasonable salary, get reimbursed for legitimate expenses, or be paid under a consulting agreement for specific services. "Reasonable" means comparable to what a similar role pays at a similar-sized nonprofit. The IRS specifically watches for founders paying themselves above-market compensation — that's a fast path to losing tax-exempt status.
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