An association is a group of people organized around a shared purpose — professional development, industry advocacy, managing a residential community, or any other common goal. Legally, associations range from informal volunteer groups with no paperwork to incorporated nonprofit entities with elected boards, tax-exempt status, and the power to hold property and sign contracts. The structure a group chooses decides how much personal liability its members carry, how the IRS treats its revenue, and what it has to file each year.
So the short answer to what an association is depends on two things: whether it has been given a separate legal identity, and what it exists to do.
Incorporated and Unincorporated Associations
The most consequential legal distinction is whether an association is incorporated. An incorporated association exists as a legal entity separate from its members. The organization’s debts and lawsuits belong to the entity, not the individuals who run it.
An unincorporated association has historically left its members exposed to personal liability for the group’s obligations. Courts have generally required more than mere membership to hold someone personally responsible, usually active participation in the conduct that caused harm, but the line between active participant and passive member is blurry enough that few people want to test it with their own assets.
The Revised Uniform Unincorporated Nonprofit Association Act (RUUNAA) has softened this gap in states that have adopted it. Under RUUNAA, an unincorporated nonprofit association is treated as a legal entity distinct from its members and managers. The group can acquire and hold property in its own name, enter contracts, and sue or be sued without dragging individual members into court.1Uniform Law Commission. Revised Uniform Unincorporated Nonprofit Association Act Not every state has adopted it, so unincorporated groups in non-adopting states still operate under older common-law rules.
For any association that plans to collect dues, hire staff, sign leases, or hold significant funds, incorporation is usually worth the paperwork. It creates a clean liability shield and makes it easier to open bank accounts, apply for tax-exempt status, and sign agreements that vendors and landlords will take seriously.
Common Types of Associations
Professional Associations
Professional associations serve individuals within a career field. They set industry standards, offer certifications, and oversee continuing education so members stay current in their specialties. Examples include groups for nurses, engineers, accountants, and real estate agents. Membership often signals a baseline level of competence to employers and clients, and some professions effectively require it to practice.
Trade Associations
Trade associations represent businesses within an industry rather than individual workers. Their primary activities are lobbying for favorable regulations, conducting market research, and creating networking opportunities among competing or complementary companies. Because they serve the collective commercial interests of their members, trade associations typically qualify for tax-exempt status under a different section of the tax code than charitable organizations.
Homeowners Associations
Homeowners associations (HOAs) manage residential communities. They maintain common areas, enforce aesthetic and use restrictions, and collect assessments from property owners. Their authority comes from recorded covenants, conditions, and restrictions (CC&Rs) that attach to the land itself. The rules follow the property when it is sold, not the person who originally agreed to them.
Monthly HOA fees vary widely by community. A modest neighborhood with basic landscaping might charge under $100 a month, while a condo building with a pool, gym, and concierge could charge well over $500. Failing to pay assessments or violating architectural guidelines can lead to fines, suspension of access to shared amenities, and liens against the property. In some states, the HOA can initiate foreclosure proceedings over unpaid assessments.
For tax purposes, HOAs that get at least 60 percent of their gross income from member assessments can elect under federal law to be taxed only on non-exempt-function income, such as interest earned on reserve accounts. To qualify, the HOA must also spend at least 90 percent of its expenditures on acquiring, maintaining, or managing association property.2Office of the Law Revision Counsel. 26 USC 528 – Certain Homeowners Associations
How Associations Are Governed
Any association beyond the most casual needs a governance structure. For most, that means a board of directors elected by the general membership. The board handles high-level decisions like budgets, strategic direction, and hiring of key staff, while officers such as the president, secretary, and treasurer manage daily operations.
Bylaws define how elections work, what counts as a quorum, and how authority is split between the board and officers. Quorum requirements prevent a handful of members from making sweeping changes without broader input. A common default is a majority of board members for board votes and a set fraction of the membership for member votes, but whatever threshold the bylaws set, falling short of it means no binding action can be taken at that meeting.
Fiduciary Duties
Board members owe the association three fiduciary duties, and these are enforceable legal obligations rather than aspirational principles. The duty of care requires each director to stay informed and make decisions with the diligence a reasonable person would use in a similar position. The duty of loyalty requires putting the organization’s interests ahead of personal or professional gain, which means disclosing conflicts of interest and stepping out of votes where a director has a financial stake. The duty of obedience requires directors to keep the organization within its stated mission and comply with applicable law.
A written conflict of interest policy is the practical governance tool that makes these duties workable. At minimum, the policy should identify who it covers, require annual disclosure of potential conflicts, and set a clear process for handling transactions where a covered person has a financial interest. The IRS expects 501(c)(3) organizations to maintain such a policy, and having one strengthens the presumption that board-approved transactions are reasonable.
Tax-Exempt Categories
Most associations pursue some form of federal tax-exempt status, and the category depends on what the organization actually does. The two most relevant for associations are 501(c)(3) and 501(c)(6).
501(c)(3) Charitable Organizations
To qualify under 501(c)(3), an organization must be organized and operated exclusively for religious, charitable, scientific, literary, or educational purposes. No part of its net earnings can benefit any private individual, and it cannot devote a substantial portion of its activities to lobbying or participate in any political campaign for or against a candidate.3Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc Contributions to 501(c)(3) organizations are generally tax-deductible for the donor. On dissolution, assets must be distributed for a charitable purpose.
501(c)(6) Business Leagues and Trade Associations
Business leagues, chambers of commerce, and trade associations typically fall under 501(c)(6). The organization cannot be operated for profit, and no net earnings can benefit private individuals.3Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc Contributions to a 501(c)(6) are not deductible as charitable gifts. Members can often deduct dues as a business expense, but the organization must track and report what percentage of dues goes toward lobbying, because that portion is not deductible. In exchange, 501(c)(6) organizations face far fewer restrictions on legislative advocacy and can engage in some political activity, as long as it is not the organization’s primary purpose.
Annual Filing Keeps the Status Alive
Every association needs an Employer Identification Number (EIN) to open a bank account and file tax returns, whether incorporated or not.4Internal Revenue Service. Employer Identification Number Organizations seeking 501(c)(3) status file Form 1023 or the streamlined Form 1023-EZ for smaller groups.5Internal Revenue Service. About Form 1023 Application for Recognition of Exemption The IRS user fee is $600 for the full Form 1023 and $275 for Form 1023-EZ.6Internal Revenue Service. Form 1023 and 1023-EZ Amount of User Fee Other 501(c) categories use Form 1024.
Once exempt, the organization files an annual return in the Form 990 family, with the specific version depending on size. If an organization fails to file any version of the annual return for three consecutive years, the IRS automatically revokes its tax-exempt status.7Office of the Law Revision Counsel. 26 USC 6033 – Returns by Exempt Organizations The revocation is not discretionary and cannot be appealed.8Internal Revenue Service. Automatic Revocation of Exemption Even an organization that brought in only a few hundred dollars should file the e-Postcard every year.
How an Association Is Formed
Forming an association starts with picking a name that is not already in use in the state. Most Secretary of State websites have a business name search tool for this check. The name needs to be distinct enough to avoid confusion with existing organizations.
Incorporated associations file articles of incorporation with the state. These typically include the organization’s name, the registered agent and office address, a statement of purpose, the names of initial directors or incorporators, and provisions for distributing assets on dissolution. State filing fees for nonprofit incorporation range from roughly $35 to several hundred dollars depending on the state. Unincorporated associations do not file articles with the state, but they should still adopt a written constitution or organizational agreement to clarify the group’s purpose, membership terms, and governance structure.
Bylaws are the internal operating manual. They should cover membership categories and eligibility, how board members are elected and removed, officer roles and terms, meeting frequency and quorum requirements, voting procedures, the fiscal year, amendment procedures, and a conflict of interest policy. Bylaws are not filed with the state, but they are binding on the organization and its members. A vague or incomplete set is the source of most internal governance disputes.
After incorporating and adopting bylaws, the usual sequence is to obtain an EIN, open a bank account in the organization’s name, apply for federal tax-exempt status (and state tax exemption, which is a separate process in most states), and set up a system to make sure annual filings happen on time. If the organization will have employees, it will also need to register for state payroll taxes and obtain workers’ compensation insurance where required. Many associations hire a commercial registered agent service to accept legal documents on the organization’s behalf, which runs roughly $100 to $300 per year for single-state coverage.