501(c)(4), (c)(5), (c)(6) and (c)(7) organizations, explained

When people say "nonprofit," they usually mean a 501(c)(3) charity. But section 501(c) of the Internal Revenue Code lists more than two dozen kinds of exempt organizations. A homeowners' group advocating for a new crosswalk, a trade association of local bakeries, a farmers' union and a hiking club can all be exempt from federal income tax without being charities. This guide covers the four you are most likely to meet and how each one gets recognized.

The four most common non-charity exemptions

If you are not sure which category fits, the tool below walks through the main questions.

501(c)(4) social welfare organizations

A social welfare organization is a nonprofit operated primarily to promote the common good and general welfare of the people of a community, for example through civic betterment and social improvements (Publication 557). Publication 557 notes that promoting social welfare does not include political campaign activity, but a 501(c)(4) organized primarily to promote social welfare can keep its exemption even if it legally takes part in some political activity for or against candidates. Its examples of qualifying groups include a community association that represents residents before the local legislature on zoning, traffic and parking. No part of its net earnings may benefit private shareholders or individuals.

The Form 8976 notice

IRC 506 requires every new 501(c)(4) organization to notify the IRS, no later than 60 days after it is established, that it is operating as a 501(c)(4). The notice is Form 8976, Notice of Intent to Operate Under Section 501(c)(4). According to irs.gov (page reviewed October 20, 2026):

• It is filed only electronically, on Pay.gov. There is no paper form.
• The fee is $50. If the fee is not paid within 14 days, the form is rejected.
• You file it once, not every year.
• If the notice is late, the IRS assesses a penalty of $20 per day, up to a maximum of $5,000.
• The IRS sends an acknowledgment, generally within 60 days of a complete submission.

Filing Form 8976 is a notice, not an application. Publication 557 states that it "is not a determination that the IRS recognizes your organization as exempt."

Form 1024-A is optional

A 501(c)(4) may, but need not, apply for a determination letter. As of Rev. Proc. 2026-5 (effective December 29, 2025), an organization seeking recognition under 501(c)(4) must use Form 1024-A, submitted electronically on Pay.gov with the user fee. The current instructions are dated January 2021, and the IRS added guidance on electronic signatures in June 2023. The Form 1024 instructions confirm that you should not use Form 1024 for a 501(c)(4) application. Filing Form 1024-A does not replace Form 8976; you need both if you want both.

Why apply? A determination letter gives certainty to members, lenders and state agencies. Applying is also required after an automatic revocation for failing to file annual returns for three years.

Switching from 501(c)(3). Rev. Proc. 2026-5 says a current 501(c)(3) can be recognized under a different paragraph of 501(c) only if it has first distributed its assets to another 501(c)(3) or a government entity, and the new letter is effective only from the new application's submission date.

501(c)(5) labor, agricultural and horticultural organizations

These organizations work to better the conditions of people in a line of work, improve the grade of their products, and develop greater efficiency in their occupations. Labor unions are the classic example. Publication 557 says they apply on Form 1024, must show that no part of net earnings inures to any member, and that payments to them are not deductible as charitable contributions, though they may be deductible as ordinary and necessary business expenses.

501(c)(6) business leagues

A business league is an association of persons with a common business interest that works to improve business conditions in one or more lines of business, rather than performing particular services for individual members (Publication 557). Trade associations, chambers of commerce, boards of trade and professional associations fit here. They apply on Form 1024 and must be primarily supported by dues and income from related activities.

Dues and lobbying. Members cannot deduct the portion of dues that the organization reports as used for influencing legislation, political campaign activity, grassroots lobbying, or certain contacts with executive branch officials. Publication 557 describes a de minimis exception for in-house expenditures of $2,000 or less for the year.

501(c)(7) social clubs

A social club is organized for pleasure, recreation and similar nonprofitable purposes, with substantially all of its activities serving those purposes and with real fellowship among members. Publication 557 sets out the key limits:

• Up to 35% of gross receipts, including investment income, may come from outside the membership.
• Within that 35%, no more than 15% of gross receipts may come from the general public's use of club facilities or services.
• A club whose governing documents or written policies provide for discrimination on the basis of race, color or religion cannot be exempt (with narrow exceptions for certain religious and fraternal clubs).

Social clubs apply on Form 1024.

Form 1024 vs. Form 1024-A

The $600 fee comes from Appendix A of Rev. Proc. 2026-5, which charges $275 for Form 1023-EZ and $600 for all other applications for recognition under section 501. User fees are set each year, so check the current revenue procedure before you file.

Annual returns still apply

Exempt status of any kind comes with annual filing. A 501(c)(4), (c)(5), (c)(6) or (c)(7) files Form 990, 990-EZ or 990-N depending on its size, and three missed years trigger automatic revocation. Our annual filing requirements guide covers the thresholds, and our lobbying limits guide explains the lobbying limits that apply to 501(c)(3) charities.

501Nonprofit.com is a private company, not the IRS. This page is general information, not legal or tax advice for your organization. Example organizations and figures are hypothetical.