Almost all corporations and LLCs are required to have a registered agent in the state where the company is formed or doing business.
 
The registered agent receives important legal, tax, and corporate compliance documents for the company. The following is a list of some documents that gets sent to the agent:
Tax-related documents from the IRS, the Franchise Tax Board, and other government tax entities.
Normal corporate filing documents, such as reminders for filing the statement of information and other information sent by the Secretary of State.
Notice-of-litigation mail (mail that initiates lawsuits) and legal documents when others want to formally contact you or send you notice.
Keeping accurate corporate records with the state is important. You may not get the full benefit that a corporation or LLC offers if information is not kept up to date. Failure to comply may result in fines and possible loss of good standing with the state.