How to Become a 501(c)(3): Forms, Deadlines, and Requirements

To become a 501(c)(3), you form a nonprofit entity under your state’s law, write IRS-required purpose and dissolution language into its governing document, obtain an Employer Identification Number, and file either Form 1023 or the streamlined Form 1023-EZ through Pay.gov with a user fee of $275 or $600. Do it within 27 months of formation and the exemption reaches back to your start date; miss that window and it only takes effect the day you file.¹²

Step 1: Form a Legal Entity Under State Law

The IRS will not consider your application until your organization exists as a formal legal entity. Treasury Regulations define “articles of organization” broadly to include a corporate charter, trust instrument, articles of association, or any other written document that creates the organization.³ In practice, that means one of three structures:

A nonprofit corporation, formed by filing articles of incorporation with your state’s secretary of state. This is the most common choice because the entity can hold property, enter contracts, and shield board members from personal liability.
A trust, created through a trust instrument, typically used for charitable foundations where a trustee manages assets for a stated purpose.
An unincorporated association, formed through a written constitution or articles of association. Less paperwork, weaker liability protection.

State incorporation fees range from about $8 to over $200. Most states also require periodic reports and small maintenance fees to keep the entity in good standing.

Step 2: Put the IRS-Required Language in Your Governing Document

The IRS applies an “organizational test” to your articles of incorporation, trust instrument, or constitution. Two specific provisions must appear, or your application is rejected regardless of how charitable your work actually is.⁴

A Purpose Clause Limited to Exempt Activities

Your document must restrict the organization’s purposes to those recognized under Section 501(c)(3) and must not authorize activities beyond those purposes except as an insubstantial part of operations.³ You can satisfy this by referencing Section 501(c)(3) directly or by listing the specific exempt purposes you’ll pursue.

A Dissolution Clause Dedicating Assets to Charity

Your document must also state that on dissolution, remaining assets go to another 501(c)(3), the federal government, or a state or local government for a public purpose. This permanently dedicates the organization’s assets to charitable use.³ If your articles say assets go to members or founders on dissolution, you fail. Some states have laws that automatically direct nonprofit assets to exempt purposes, which can satisfy the requirement, but an explicit clause is safer than relying on state law alone.⁴

If your documents are already filed with the state and missing either clause, amend them before submitting your exemption application. Fixing this after the IRS flags it wastes months.

Step 3: Get an EIN and Assemble Your Financials

Before you can complete either version of Form 1023, you need an Employer Identification Number, available free through the IRS online.⁵ Be aware that applying for the EIN starts clocks running: the IRS presumes you’re legally formed, and the three-year window for annual returns begins.⁶ Don’t get an EIN and then sit on the application for years.

The financial data you need depends on how old the organization is:⁷

Less than one year old: three years of projected income and expenses, starting with the current year.
One to five years old: actual financial data for each completed year, plus projections for the current and remaining years, totaling four years.
Five years or older: actual income and expenses for the five most recently completed tax years.

Projections don’t need to be exact, but the IRS expects them to be reasonable and made in good faith. List revenue sources like grants, donations, and program fees alongside anticipated expenses like salaries, rent, and program costs. Disclose all compensation to officers and directors; the IRS reviews these figures to make sure nobody is siphoning off charitable dollars.

Step 4: Choose Between Form 1023 and Form 1023-EZ

The streamlined Form 1023-EZ is available if you meet every condition on the IRS eligibility worksheet. The main thresholds: annual gross receipts have not exceeded and are not projected to exceed $50,000 in any of the past or next three years, and total assets are under $250,000. Churches, schools, and hospitals cannot use the 1023-EZ regardless of size and must file the full Form 1023.⁸ The full form asks for detailed narratives about your programs, relationships with other organizations, and any international activities.

The user fee is $275 for Form 1023-EZ and $600 for Form 1023.² Both are filed electronically through Pay.gov, and you sign under penalty of perjury.⁹

The IRS also asks whether you’ve adopted a conflict of interest policy. It isn’t strictly required for exemption, but a sample policy appears in the Form 1023 instructions, and having one in place signals sound governance.¹⁰ It’s one of the easiest items to check off upfront.

Step 5: Identify Your Public Charity Classification

Every 501(c)(3) is presumed to be a private foundation unless it demonstrates it qualifies as a public charity.¹¹ The distinction matters. Private foundations face stricter operating rules, excise taxes, and limits on self-dealing that public charities avoid.

Public charities draw support from a broad base of donors, government grants, or program revenue. Private foundations are typically funded by one family or a small group. To qualify as a public charity, you must pass a public support test measured over a five-year period. The most common test requires at least one-third of total support from public contributions.¹² Organizations between 10% and one-third can still qualify under a facts-and-circumstances test if they show sufficient community engagement.

Form 1023 asks you to pick a classification. Getting this right at the outset avoids the more burdensome private foundation rules.

Step 6: File and Wait

Processing times differ sharply between the two forms. The IRS issues 80% of Form 1023-EZ determinations within about 22 days. Full Form 1023 determinations take longer, with 80% issued within 191 days.¹³ If the reviewing agent needs clarification, they’ll contact you by phone or mail.

When approved, you’ll receive a Determination Letter confirming your status and classification. This is the document donors, grant-makers, and state agencies will ask to see. Keep it permanently.

You can request expedited review in limited circumstances: a pending grant that will be lost without timely determination, formation to provide disaster relief, or IRS errors that caused unusual delays.¹⁴ The request must be in writing and specify the amounts, deadlines, and operational impact. Expedited review is not available for Form 1023-EZ.

If a Form 990 filing deadline arrives before your Determination Letter, file anyway and check the box indicating your application is pending.¹³ Skipping the filing starts the clock toward automatic revocation.

The 27-Month Filing Deadline

To have your exemption take effect retroactive to formation, you must file within 27 months from the end of the month in which the organization was formed.¹ Miss the window and exemption starts only from the date you actually filed. Donations received in the uncovered gap may not qualify as deductible, and the organization could owe income tax on revenue earned before the effective date.

The clock runs from formation, not from the date you get an EIN or begin operations. Incorporate in January 2026 and you have until the end of April 2028 to file.

What You Cannot Do Once You’re Exempt

Approval comes with hard limits. A few are worth knowing before you start operating.

A 501(c)(3) cannot participate or intervene in any political campaign for or against a candidate for public office. The prohibition is absolute, with no acceptable threshold amount.¹⁵ Endorsements, campaign spending, and biased organizational communications all count as prohibited intervention, and violations can trigger excise taxes on both the organization and the manager who approved the expenditure, plus loss of exemption.¹⁶ Nonpartisan voter registration and candidate forums that invite all candidates remain permissible.

Lobbying is different. It isn’t banned, but no “substantial part” of your activities can consist of lobbying. Organizations that expect to lobby often elect the 501(h) expenditure test by filing Form 5768, which replaces the vague “substantial part” standard with dollar-based limits on a sliding scale tied to exempt-purpose expenditures.¹⁷

No part of the organization’s net earnings may benefit any private individual with a personal interest in it. Board members, officers, and founders cannot receive unreasonable compensation or sweetheart deals beyond fair-market-value payments for services actually rendered.¹⁸ Private inurement is one of the most common reasons the IRS revokes exempt status.

Annual Filings You Must Keep Up With

The Determination Letter is not the finish line. Every 501(c)(3) files an annual information return, and the version depends on size:¹⁹

Form 990-N (e-Postcard) for gross receipts normally $50,000 or less.
Form 990-EZ for gross receipts under $200,000 and total assets under $500,000.
Form 990 for gross receipts of $200,000 or more, or total assets of $500,000 or more.

The return is due by the 15th day of the fifth month after the end of your fiscal year. For a calendar-year organization, that’s May 15. Form 8868 gets you an automatic six-month extension if filed before the original deadline.

Miss three consecutive years and your tax-exempt status is automatically revoked by operation of law, with no warning and no grace period.²⁰ Small organizations that only owe the e-Postcard are especially prone to this because founders assume nothing needs to be filed. Reinstatement is possible but requires a fresh application, new user fee, and often a reasonable-cause showing.²¹

State Requirements Federal Status Doesn’t Cover

Your IRS Determination Letter does not automatically exempt you from state obligations. About 40 states require charities to register before soliciting donations from their residents.²² If you fundraise online and accept donations from multiple states, you may need to register in each of them.

Most states also require a separate application for state income tax or sales tax exemption. Your federal letter typically helps, but you still need to file the state paperwork. Once your Determination Letter arrives, check with your state’s secretary of state and department of revenue to identify any additional filings.

1
Internal Revenue Service. Form 1023 – Purpose of Questions About Organization Applying More Than 27 Months After Date of Formation
2
Internal Revenue Service. Form 1023 and 1023-EZ – Amount of User Fee
3
eCFR. 26 CFR 1.501(c)(3)-1 – Organizations Organized and Operated for Religious, Charitable, Scientific, Testing for Public Safety, Literary, or Educational Purposes, or for the Prevention of Cruelty to Children or Animals
4
Internal Revenue Service. Charity – Required Provisions for Organizing Documents
5
Internal Revenue Service. Get an Employer Identification Number
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Internal Revenue Service. Obtaining an Employer Identification Number for an Exempt Organization
7
Internal Revenue Service. Instructions for Form 1023 (12/2024)
8
Internal Revenue Service. Instructions for Form 1023-EZ (Rev. January 2025)
9
Internal Revenue Service. Applying for Tax Exempt Status
10
Internal Revenue Service. Instructions for Form 1023 (Rev. December 2024)
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Internal Revenue Service. EO Operational Requirements – Private Foundations and Public Charities
12
Internal Revenue Service. Exempt Organizations Annual Reporting Requirements – Form 990, Schedules A and B – Public Charity Support Test
13
Internal Revenue Service. Where’s My Application for Tax-Exempt Status? – Section: Check Application Processing Times
14
Internal Revenue Service. Applying for Exemption – Expediting Application Processing
15
Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc.
16
Office of the Law Revision Counsel. 26 USC 4955 – Taxes on Political Expenditures of Section 501(c)(3) Organizations
17
Office of the Law Revision Counsel. 26 USC 4911 – Tax on Excess Expenditures to Influence Legislation
18
Internal Revenue Service. Inurement/Private Benefit – Charitable Organizations
19
Internal Revenue Service. 2025 Instructions for Form 990
20
Internal Revenue Service. Automatic Revocation of Exemption for Non-Filing – Frequently Asked Questions
21
Internal Revenue Service. Automatic Revocation – How to Have Your Tax-Exempt Status Reinstated
22
Internal Revenue Service. Charitable Solicitation – Initial State Registration