How to start a church in Illinois

Short answer: To start a church in Illinois, you form a not-for-profit corporation by filing Articles of Incorporation — Form NFP 102.10 with the Illinois Secretary of State and paying the $50 filing fee, then get a free EIN from the IRS, adopt bylaws, seat a board of at least three directors, and open a bank account. A church is automatically tax-exempt under federal law, so filing IRS Form 1023 is optional and there is no annual Form 990. The pieces that are genuinely Illinois-specific are the state filing, a religious exemption from the Attorney General’s charitable registration, and the two state-level tax breaks worth claiming: a sales tax exemption number (an “E-number”) from the Illinois Department of Revenue, and a property tax exemption filed through your county board of review.

The federal formation steps are the same in every state — incorporate, EIN, bylaws, board, books. This guide covers those briefly and then spends its time on the Illinois pieces that carry the real value. For the full national walkthrough of each universal step, read how to start a church; below, the focus is what changes inside Illinois.

The formation steps that are the same anywhere

Starting a church in Illinois follows the standard church-formation checklist, and most of it is federal, not state-specific:

1. Incorporate as a not-for-profit corporation (the Illinois-specific part — covered in detail below).
2. Get an EIN — a free federal tax ID from the IRS, applied for directly at irs.gov. Never pay a third party for one; the EIN is always free.
3. Adopt bylaws — the church’s internal rulebook for decisions, leadership, and money. Start from a proven document rather than a blank page; see church bylaws for what to include.
4. Seat a board — Illinois requires at least three directors, ideally a majority unrelated, so the church is governed by a body rather than one person.
5. Skip or pursue the 501(c)(3) letter — a church is automatically tax-exempt and does not have to file Form 1023, though many apply for the determination letter as documentation (IRS Publication 1828).
6. Open a bank account in the church’s legal name using the EIN and formation documents.
7. Set up the books on fund accounting from day one, before the first offering arrives.

Each of these is walked step by step in the national formation guide linked above. The rest of this page is the Illinois layer on top.

Incorporating a church in Illinois with Form NFP 102.10

In Illinois, you create the church as a legal entity by filing Articles of Incorporation — Form NFP 102.10 with the Illinois Secretary of State, Department of Business Services. The filing fee is $50 as of 2026; confirm the current amount with the Illinois Secretary of State, since fees change. You can file by mail to Springfield, in person at the Chicago or Springfield office, or online through the state’s not-for-profit incorporation portal.

Form NFP 102.10 asks for the corporation’s name, its registered agent and registered office in Illinois, the names and addresses of the initial directors, and a statement of purpose. Illinois wants that purpose written narrowly and specifically rather than as a vague catch-all. Two clauses do the heavy lifting for tax-exempt status and should go in at formation rather than as an amendment later:

• A 501(c)(3) purpose clause stating the church is organized exclusively for religious and charitable purposes.
• A dissolution clause stating that if the church closes, its assets pass to another 501(c)(3) organization or a government body, not to any individual.

The IRS looks for both, so getting the language right on the Illinois filing saves a rewrite. Illinois also sets a real floor on board size: under the General Not For Profit Corporation Act, 805 ILCS 105/108.10, the board “shall consist of three or more directors,” so name three initial directors on the Articles. The full breakdown of what these documents need is in articles of incorporation for a church.

Does an Illinois church register with the Attorney General to fundraise

Illinois requires charitable organizations to register with the Attorney General’s Charitable Trust Bureau before soliciting contributions from the public — but churches get a specific carve-out that ordinary nonprofits do not. A church can apply for a religious exemption from registration rather than filing the full charitable registration and paying annual reports.

To claim it, the church files a registration statement, requests the exemption, and submits Form CO-3, the Charitable Organization Religious Organization Exemption Form, the questionnaire the Attorney General uses to confirm the group is genuinely religious (Illinois Attorney General, charity registration). If the Attorney General finds the organization religious and its purposes actual and genuine, it issues the exemption. Illinois grants two kinds: an individual religious exemption for a single named church, and a blanket exemption issued to the central body of a denomination that covers the church and its affiliated agencies in one filing. A single independent congregation applies for the individual exemption; churches under a parent denomination may already be covered by a blanket exemption their central body holds.

The practical upshot: an ordinary Illinois church that secures the religious exemption skips the annual Form AG990-IL report that regular charities file every year. Confirm the current form and process with the Charitable Trust Bureau before you solicit, since the office is moving registration to an online filing system.

Claiming the Illinois sales tax exemption (E-number) for your church

A federal exemption does nothing about Illinois sales tax — that break is a separate application, and it does not happen automatically. Qualifying religious organizations apply to the Illinois Department of Revenue (IDOR) on Form STAX-1, Application for Sales Tax Exemption, or through MyTax Illinois. There is no fee to apply.

With the form you attach your Articles of Incorporation, your bylaws, a narrative describing what the church does, your IRS exemption letter if you have one, and a recent financial statement (Illinois Department of Revenue, PIO-37). One Illinois-friendly detail for a new church: because a church is exempt under federal law without a determination letter, it can apply for the state exemption even if it has chosen not to file Form 1023. If IDOR approves, it issues a sales tax exemption identification number — an “E-number” in the format E99XX-XXXX — and the application can take up to 90 days to process.

The E-number is the part that actually saves money. Once it is issued, the church gives that number to a seller and buys qualifying goods free of Illinois sales tax; without it, the church pays sales tax like anyone else, since the exemption is not retroactive to the application date. So Illinois does exempt a qualifying church’s purchases — but only after IDOR has issued the E-number, not the moment you incorporate.

Claiming the Illinois property tax exemption through the county

A church that owns its building can exempt that property from local property tax, but this one runs through your county board of review first, not straight to the state. You apply with Form PTAX-300-R, Application for Religious Property Tax Exemption, filing it with the board of review in the county where the church owns property, together with the attachments listed on the form.

The process has two levels. The county board of review holds a hearing, evaluates the application, and forwards it with its recommendation to the Illinois Department of Revenue, which makes the final administrative decision (Illinois Department of Revenue, PIO-37). One thing that eases the filing for congregations: a religious organization does not have to submit a financial statement with the initial request. The exemption turns on ownership and religious use — the property has to be owned by the church and used primarily for religious purposes — so a parcel held for investment or unrelated business use will not qualify. File with the county board of review for your parcel and confirm the current form and deadline with that office before filing.

Illinois filing at a glance

The table below maps each Illinois step to its agency, form, and cost. Treat the fees as accurate as of 2026 and confirm with the listed agency, since state fees change.

What you’re doing	Agency	Form	Fee (as of 2026)
Incorporate the church	Illinois Secretary of State	Articles — Form NFP 102.10	$50 (confirm with the SoS)
Get a federal tax ID	IRS	EIN application (online)	Free
501(c)(3) recognition (optional)	IRS	Form 1023 or 1023-EZ	$600 / $275 user fee
Religious exemption from fundraising registration	IL Attorney General	Form CO-3 (religious exemption)	No fee
Sales tax exemption	IL Department of Revenue	Form STAX-1 (issues E-number)	No fee
Property tax exemption	County board of review → IDOR	Form PTAX-300-R	No fee

Setting up the books once the church exists in Illinois

Once the church is formed and the exemptions are filed, the work shifts from one-time paperwork to the monthly routine — and that routine is where churches actually fail or hold together. A church holds money in trust for the people who gave it, much of it tagged for a purpose (the building, missions, benevolence), so it tracks money by fund rather than as a single bottom line. Set the books up on fund accounting before the first offering, keep the giving records your donors need for their own taxes, and document that the board reviews the finances. None of the Illinois exemptions excuse a church from keeping clean records; the IRS still expects records that substantiate income and expenses (IRS Publication 1828).

FAQ

How much does it cost to start a church in Illinois? The required state cost is small. Filing Articles of Incorporation (Form NFP 102.10) with the Illinois Secretary of State costs $50 as of 2026, the EIN from the IRS is free, and the religious exemption from charitable registration (Form CO-3), the sales tax exemption (Form STAX-1), and the property tax exemption (Form PTAX-300-R) all carry no filing fee. So the bare legal minimum to form an Illinois church and claim its exemptions is roughly the $50 filing fee plus your time. Optional add-ons raise it: the IRS determination letter is $275 (Form 1023-EZ) or $600 (full Form 1023), and insurance runs a few hundred dollars a year. A small Illinois church can realistically be stood up properly for well under a few hundred dollars beyond the optional federal letter.

Does an Illinois church have to register with the Attorney General? Yes and no. The church registers as a legal entity when it files Form NFP 102.10 with the Secretary of State to incorporate — that is what creates the entity. On the fundraising side, Illinois requires charitable organizations to register with the Attorney General’s Charitable Trust Bureau before soliciting, but churches can apply for a religious exemption using Form CO-3 instead (Illinois Attorney General, charity registration). A church that secures the exemption skips the annual Form AG990-IL that ordinary charities file.

Do you need 501(c)(3) status to start a church in Illinois? No. A church is automatically tax-exempt under federal law and does not have to file Form 1023 or hold an IRS determination letter to be exempt, and it files no annual Form 990 (IRS Publication 1828). It can also apply for the Illinois sales tax E-number and property tax exemption without a federal letter. Many Illinois churches still apply for the determination letter as documentation for banks, grant-makers, and large donors, but it is optional — see are churches tax exempt for the fuller picture.

Can I just start my own church in Illinois? Practically, anyone can start a church in Illinois — there is no state license or denominational permission required, and the First Amendment protects the right to form a religious organization. What you do need, to operate as a real and exempt church, is the structure: a not-for-profit corporation formed on Form NFP 102.10, an EIN, adopted bylaws, a board of at least three mostly-unrelated directors, a bank account in the church’s name, and books set up on fund accounting. The freedom to start one is unlimited; running one properly is a checklist.

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This is general information, not tax or legal advice. Illinois forms, fees, and deadlines change, and every church’s facts differ — confirm the current rules with the listed agency and consult a qualified accountant or attorney before filing.

Vestrybooks sets up a new Illinois church’s books on fund accounting from day one — funds, reconciliation, and the board reports — so the financial side is right before the first offering. See how it works.