When most people think about a nonprofit, they think about 501(c)(3)s — so that is what most people form.
But if what you are building is an advocacy group, a civic association, or an organization whose whole point is to change policy, a 501(c)(3) will restrict some of the activities you want to do. A 501(c)(4) may be the better fit.
What a 501(c)(4) is
A 501(c)(4) is a social welfare organization. That includes civic leagues, community associations, volunteer fire companies, neighborhood groups, and advocacy organizations.
Similar to a 501(c)(3), a 501(c)(4) cannot be set up for private benefit or for profit. Instead, it is operated to promote social welfare and the common good and general welfare of the community.
The practical difference between a 501(c)(3) charity and a 501(c)(4) social welfare organization comes down to two things: what you do politically, and what your donors get.
What a 501(c)(4) can do that a 501(c)(3) cannot
Lobby without limit. A 501(c)(4) may pursue its exempt purpose through lobbying as its primary activity. A 501(c)(3) faces limits on legislative activity, and exceeding them threatens its tax-exempt status. If your nonprofit wants to influence legislation, this may be the deciding factor.
Engage in some political campaign activity. A 501(c)(4) may intervene in political campaigns by supporting or opposing candidates without losing its tax-exempt status, provided that is not its primary activity. A 501(c)(3) is absolutely barred from doing so.
There is no bright-line definition of what counts as “primarily,” which is precisely what makes this area worth getting advice on.
What you give up
Donations are not deductible. Contributions to a 501(c)(4) generally are not deductible as charitable contributions. They may be deductible as ordinary and necessary business expenses in some circumstances, but that does not apply to most individual donors.
Grants are harder. Most foundation grant programs fund 501(c)(3) organizations. A 501(c)(4) generally does not qualify for those grants.
Additional taxes. Like a 501(c)(3), a 501(c)(4) is exempt from income tax on income sufficiently related to its exempt purposes. But there are two additional taxes a 501(c)(4) may face. The first is a tax on political expenditures. The second is a proxy tax, which applies where a 501(c)(4) that lobbies does not tell its members what percentage of their dues went to lobbying, under IRC Section 6033(e)(1).
The 60-day deadline nobody warns you about
There is one part of the process that is unique to 501(c)(4) nonprofits.
Every new entity intending to operate as a 501(c)(4) must notify the IRS of its existence on Form 8976 within 60 days of formation. That is typically the date your Articles of Incorporation were approved by the state.
This is not the same as the Form 1024-A exemption application. It is a separate, mandatory electronic notice with a $50 filing fee.
If you miss the deadline, the IRS may impose a penalty of $20 per day, up to a maximum of $5,000, under Code section 6652(c)(4).
If you are forming a 501(c)(4), put this on a calendar before you file your articles.
Step by step
1. Form the entity. Usually a nonprofit corporation, by filing Articles of Incorporation with the state. The IRS expects specific purpose language for 501(c)(4)s in the articles, and that language is different from what goes into the articles of a 501(c)(3). The 60-day clock for Form 8976 starts here.
2. File Form 8976 within 60 days. File electronically through Pay.gov and submit the $50 fee.
3. Adopt bylaws and a conflict of interest policy. Our guide to nonprofit bylaws covers what these need to contain.
4. Get an EIN.
5. Decide whether to seek formal recognition. Form 8976 is only a notice that you intend to operate as a 501(c)(4). It is not an application for exemption and it is not a determination. If you want formal recognition of exempt status, you file Form 1024-A.
6. File a Form 990 every year. The same annual return obligations as other exempt organizations.
Choosing between (c)(3) and (c)(4)
The question is not which is better. It is what you intend to do with the organization.
Choose 501(c)(3) if your donors need a deduction, if you plan to seek grants, and if your work is charitable or educational rather than political.
Choose 501(c)(4) if lobbying is central to your mission, if you need the freedom to engage in some campaign activity, and if your funding can come from people who are not giving for the tax benefit.
Some organizations run both — a (c)(3) for charitable and educational work and an affiliated (c)(4) for advocacy. That structure requires genuine separation, because they are two distinct entities: separate books, separate boards, careful cost allocation, and discipline about which entity pays for what.
Mistakes founders make
Missing the 60-day notice. The most common, and the most avoidable.
Assuming donations are deductible. Telling donors otherwise is a serious problem. Your solicitation materials need to be accurate from day one.
Letting political campaign activity become the primary activity, rather than lobbying and programs in furtherance of the social welfare purpose.
Forming a (c)(4) when a (c)(3) would have worked. Founders sometimes choose (c)(4) because they anticipate advocacy they never actually do, and give up deductibility for nothing.
Before you file
The honest first question is whether your work is genuinely political enough to need this section. Most organizations that ask about 501(c)(4) turn out to be describing educational or charitable work that a 501(c)(3) could do more easily and fund more readily.
If the answer really is advocacy, the structure is worth getting right at the start — including that 60-day clock, which is the one thing you cannot fix later.
If you are weighing the two, our 501(c)(4) formation page sets out what the process involves and what it costs.
This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Rules differ by state and change over time. Please speak with a licensed attorney about your own situation.