An Arizona LLC can have anywhere from one owner to an unlimited number of owners. Arizona law requires at least one member to form the company but sets no maximum (A.R.S. § 29-3401). So a single person can own 100% of an LLC, and there’s no legal ceiling on how many members you can add.
Owners of an LLC are called members. Arizona recognizes both the single-member LLC (one owner) and the multi-member LLC (two or more owners), and both provide the same liability protection. The practical difference is how they’re taxed: a single-member LLC is treated by default as a “disregarded entity” (income flows onto the owner’s personal return), while a multi-member LLC is taxed by default as a partnership.
Who is allowed to own an Arizona LLC?
Arizona doesn’t restrict who can be a member. There’s no residency or citizenship requirement, so an owner can be:
- An individual, including someone who lives outside the United States;
- Another LLC or a corporation;
- A trust — including a revocable living trust, a common way to hold a business as part of an estate plan;
- A partnership or other entity.
One caveat comes from federal tax law, not Arizona: if you elect to have your LLC taxed as an S-corporation, the IRS limits ownership to 100 shareholders who are generally U.S. citizens or residents (plus certain trusts). That’s a tax election, not an Arizona ownership rule — confirm it with your CPA before assuming it applies.
Does adding owners change how the LLC works?
Yes. The moment you go from one member to two, decisions, profits, and voting all become shared — and Arizona’s default rules kick in unless your operating agreement says otherwise. Notably, Arizona’s default splits distributions in equal shares among members (A.R.S. § 29-3404), not in proportion to what each person contributed. Any time you add or remove an owner, your operating agreement should be updated to match.
Related questions
Can a husband and wife count as one owner? No — they’re two members unless one of them isn’t actually on the LLC. (In community-property states like Arizona, a spouse-owned LLC can sometimes elect single-member tax treatment; ask your CPA.)
Is there a benefit to more owners? More owners can mean more capital and expertise, but also more coordination and more potential for disputes — which is exactly why a clear operating agreement matters.
Want to structure ownership the right way from day one? At AVID Esq. Group, we don’t prescribe — we educate. Learn more about our Arizona business law services, read our full guide to how LLC ownership works, or schedule a free consultation or call (480) 805-4357.
This is general legal information about Arizona law, not legal advice, and does not create an attorney-client relationship.
