A registered office is the address listed by the company's registered agent. The registered office must be listed in the company's formation documents. Most states require a registered office to be a physical address as opposed to a post office box address.
A company's registered office represents the location where a company's service of process will be delivered. Other important business and tax documents may be delivered to the company's registered office.
Most states require limited liability companies and corporations to maintain a registered office in the state where the company is organized. A company may act as its own registered agent as long as the company maintains an office in the state.
A natural person may act as a registered agent for a company, but the person must maintain a residence in the state where the company is organized. The registered agent's residence acts as the company's registered office. Most states require a person to be at least 18 years of age to act as a company's registered agent.
A company may elect to name another company as its registered agent. In this case, the registered agent must be authorized to conduct business in the company's state of formation. The registered office must be open during normal business hours to accept the company's legal and tax documents.