Internal Revenue Code Section 501(a) is the provision that actually grants federal income tax exemption. It does not, by itself, describe who qualifies. It works as a gateway: an organization that fits one of the categories described in Section 501(c) or Section 501(d), and that meets that category’s requirements, passes through 501(a) and escapes the corporate income tax that Section 11 otherwise imposes on ordinary businesses.1Office of the Law Revision Counsel. 26 U.S. Code 11 – Tax Imposed Exemption is not automatic for most organizations, and keeping it depends on continuing compliance that can be lost in ways many groups do not anticipate.
What Kinds of Organizations Qualify
Section 501(c) currently lists 29 distinct categories.2Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. Three of them cover most of the organizations a reader is likely to be running or dealing with.
501(c)(3) Charitable Organizations
This is the category most people mean when they say “nonprofit.” It covers organizations operated for religious, charitable, scientific, literary, or educational purposes, among others.3Internal Revenue Service. Exemption Requirements – 501(c)(3) Organizations It carries a benefit no other category provides: donors can deduct their contributions on their federal income tax returns. That deductibility is what makes the (c)(3) designation the one fundraising organizations chase.
A 501(c)(3) is classified as either a public charity or a private foundation. Public charities generally must receive at least one-third of their support from the general public or meet an alternative 10-percent facts-and-circumstances test to avoid the private foundation classification.4Internal Revenue Service. Form 990, Schedules A and B: Public Charity Support Test Private foundations face stricter rules, including excise taxes on self-dealing and mandatory annual distributions.
501(c)(4) Social Welfare Organizations
Civic leagues and social welfare organizations fall here. Qualification requires that the organization be primarily engaged in promoting the common good and general welfare of a community.5Internal Revenue Service. Exempt Organizations Technical Instruction Program for FY 2003 IRC 501(c)(4) Organizations A (c)(4) can engage in political campaign activity so long as that is not its primary purpose, but donations to it are not deductible as charitable contributions.
501(c)(6) Business Leagues and Trade Associations
Chambers of commerce, real estate boards, boards of trade, and other business leagues fit under this paragraph. They must work to improve business conditions within a particular industry or community, rather than performing services for individual members.6Internal Revenue Service. Business Leagues Contributions are not deductible as charitable gifts, though dues can sometimes be deductible to members as ordinary business expenses.7Internal Revenue Service. Tax Treatment of Donations: 501(c)(6) Organizations
Conditions Attached to 501(c)(3) Status
Because 501(c)(3) status carries the most valuable benefits, Congress attached the strictest conditions.
No Private Inurement
None of the organization’s net earnings can benefit any private shareholder or individual. Insiders, meaning founders, board members, officers, and their families, cannot receive compensation or benefits that exceed fair market value for what they actually provide.3Internal Revenue Service. Exemption Requirements – 501(c)(3) Organizations Excessive salaries, sweetheart leases, and no-interest loans to insiders are the arrangements that draw scrutiny. Violations can cost the organization its exemption and can also trigger personal excise taxes on the individuals under the intermediate sanctions rules described below.
No Political Campaign Activity
A 501(c)(3) is absolutely prohibited from participating or intervening in any political campaign for or against a candidate for public office.2Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. There is no de minimis exception. Endorsements, campaign literature, and donations to candidates can all cost the organization its status.
Limited Lobbying
Lobbying is permitted, but it cannot be a “substantial part” of the organization’s activities. The word “substantial” is deliberately vague, and organizations relying on the default test are subject to an IRS judgment call about whether they crossed the line. Most public charities can replace that vague standard with a concrete expenditure-based ceiling by making a 501(h) election.8Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. – Section: (h) Churches and private foundations cannot make the election.
Applying for Recognition
Most organizations must apply to the IRS for formal recognition of their exempt status. The application produces a determination letter, the official document confirming the organization qualifies under a specific paragraph of 501(c). The form and the user fee depend on the type of exemption sought.
- 501(c)(3) applicants file Form 1023, or the streamlined Form 1023-EZ if eligible. Both are submitted electronically through Pay.gov. The fee is $600 for Form 1023 and $275 for Form 1023-EZ.9Internal Revenue Service. About Form 102310Internal Revenue Service. Form 1023 and 1023-EZ: Amount of User Fee
- 501(c)(4) organizations file Form 1024-A. They are not technically required to apply for recognition to be tax-exempt, but most do because a determination letter is useful for nonprofit mailing privileges, state tax exemptions, and dealings with funders.11Internal Revenue Service. Instructions for Form 1024-A
- Other 501(c) categories file Form 1024.12Internal Revenue Service. About Form 1024, Application for Recognition of Exemption Under Section 501(a) or Section 521 of the Internal Revenue Code
The streamlined Form 1023-EZ is narrower than many applicants realize. The organization must project annual gross receipts of $50,000 or less for each of the next three years, must not have exceeded $50,000 in gross receipts in any of the prior three years, and must have total assets with a fair market value of $250,000 or less. Certain organization types, including schools, hospitals, and supporting organizations, are ineligible regardless of size and must file the full Form 1023.13Internal Revenue Service. Instructions for Form 1023-EZ
Two groups do not have to apply at all. Churches, synagogues, temples, mosques, and their integrated auxiliaries are automatically treated as tax-exempt under 501(c)(3). So are organizations with annual gross receipts normally at or below $5,000.13Internal Revenue Service. Instructions for Form 1023-EZ Many churches still choose to apply, because grantmakers and donors often want to see a determination letter before writing a check.
Keeping the Exemption
The determination letter is the beginning of the compliance obligation, not the end.
Annual Returns
Most exempt organizations must file an annual return from the Form 990 series. Which version applies depends on the organization’s size:
- Form 990-N, the electronic “e-Postcard,” for organizations with gross receipts normally $50,000 or less.14Internal Revenue Service. Annual Electronic Filing Requirement for Small Exempt Organizations – Form 990-N
- Form 990-EZ for organizations with gross receipts under $200,000 and total assets under $500,000.15Internal Revenue Service. Form 990 Series Which Forms Do Exempt Organizations File Filing Phase In
- Form 990 for organizations that exceed either threshold.
- Form 990-PF for all private foundations, regardless of size.16Internal Revenue Service. Private Foundations
Late or missing returns carry a penalty of $20 per day, with a maximum for any single return equal to the lesser of $10,000 or 5% of the organization’s gross receipts. Organizations with gross receipts over $1,000,000 face $100 per day, capped at $50,000 per return.17Office of the Law Revision Counsel. 26 U.S. Code 6652 – Failure to File Certain Information Returns
Automatic Revocation After Three Missed Years
The penalty that matters most is not a dollar amount. An organization that fails to file its required annual return or notice for three consecutive years automatically loses its tax-exempt status. Revocation takes effect on the original filing due date of the third missed return, and the IRS publishes the revoked organization’s name on a public list.18Internal Revenue Service. Automatic Revocation of Exemption Until the organization is reinstated, it is treated as a taxable entity.
Reinstatement is possible. Applying within 15 months of the later of the revocation letter or the date of listing opens the door to retroactive reinstatement back to the revocation date. A streamlined path exists for organizations that were eligible to file Form 990-EZ or 990-N and had not been revoked before. Missing the 15-month window means retroactive reinstatement requires demonstrating reasonable cause for all three years of missed filings, a harder showing to make.19Internal Revenue Service. Automatic Revocation – How to Have Your Tax-Exempt Status Reinstated
Public Inspection
Exempt organizations must make their approved exemption application (with supporting documents) and their three most recent annual returns available to anyone who asks. In-person requests must be filled the same day; written requests must be answered within 30 days.20Internal Revenue Service. Public Disclosure and Availability of Exempt Organizations Returns and Applications Posting the returns on the organization’s website generally satisfies the obligation.
Taxes an Exempt Organization Can Still Owe
Unrelated Business Income Tax
Exemption does not cover income from commercial activity unrelated to the organization’s mission. Income is treated as unrelated business income only if it satisfies all three conditions: it comes from a trade or business, the activity is regularly carried on, and the activity is not substantially related to the exempt purpose.21Office of the Law Revision Counsel. 26 USC 513 – Unrelated Trade or Business Using the profits for charitable purposes does not make the activity itself “related”; the activity must advance the mission.
An organization with $1,000 or more of gross unrelated business income must file Form 990-T.22Internal Revenue Service. Unrelated Business Income Tax Net unrelated business taxable income is taxed at the flat 21% corporate rate for organizations other than trusts, after a $1,000 specific deduction.
Several kinds of income are excluded even when unrelated to the mission: dividends, interest, annuities, royalties, most real property rents, and capital gains.23Office of the Law Revision Counsel. 26 USC 512 – Unrelated Business Taxable Income Income from activities where substantially all the work is performed by unpaid volunteers is excluded, as is income from selling donated merchandise, which is why charity thrift stores generally pay no UBIT on those sales.
Intermediate Sanctions on Insiders
Revocation punishes the charity, not the individuals who misbehaved. Section 4958 fills that gap with excise taxes imposed directly on the people involved in an excess benefit transaction with a public charity or a 501(c)(4). An excess benefit transaction is one in which a disqualified person, meaning someone in a position to exercise substantial influence over the organization during a defined lookback period (plus family and controlled entities), receives economic benefits worth more than what the person provided in return.24Internal Revenue Service. Disqualified Person – Intermediate Sanctions
The disqualified person owes an excise tax of 25% of the excess amount. If the transaction is not corrected within the taxable period, an additional tax of 200% of the excess benefit applies. Organization managers who knowingly approved the transaction can be separately liable.25Internal Revenue Service. Intermediate Sanctions – Excise Taxes These taxes come out of the individual’s own pocket. Private foundations have a parallel set of self-dealing excise taxes under Section 4941.26Internal Revenue Service. Taxes on Self-Dealing: Private Foundations
Employment Taxes
Exemption applies to the organization’s own income tax, not to payroll. Exempt organizations with employees generally withhold and pay federal income tax, Social Security, and Medicare like any other employer. The one significant break: 501(c)(3) organizations are exempt from federal unemployment tax (FUTA). Wages paid by a (c)(3) are still generally subject to Social Security and Medicare taxes once the employee earns $100 or more in a calendar year.27Internal Revenue Service. Section 501(c)(3) Organizations – FUTA Exemption Other exempt categories, including 501(c)(4) and 501(c)(6), do not get the FUTA exemption.
Obligations to Donors
501(c)(3) organizations also carry obligations to the people who give them money. A donor cannot claim a deduction for any single contribution of $250 or more without a contemporaneous written acknowledgment from the organization stating its name, the date and amount of the gift, and whether the donor received any goods or services in return. The donor must have it by the earlier of the date the return is filed or the return’s due date, including extensions.28Internal Revenue Service. Publication 1771, Charitable Contributions – Substantiation and Disclosure Requirements
Separately, when a donor pays more than $75 partly as a contribution and partly for goods or services, the organization must give a written disclosure telling the donor that only the amount above the fair market value of what they received is deductible, and provide a good-faith estimate of that fair market value.29Internal Revenue Service. Charitable Contributions: Quid Pro Quo Contributions Token items of insubstantial value and intangible religious benefits are excepted.