Agency: Principal/Agent Duties, Respondeat Superior, and Tort Liability

The Agent's Fiduciary Duties to the Principal

An agent is a fiduciary of the principal and owes a cluster of duties, the most heavily tested of which is the duty of loyalty. The duty of loyalty forbids the agent from (1) self-dealing — acting as an adverse party to the principal without the principal's knowing consent; (2) usurping a business opportunity that belongs to the principal; (3) taking secret profits, kickbacks, or commissions from the transaction; (4) competing with the principal during the agency; and (5) using the principal's confidential information or property for the agent's own benefit.

The remedy menu is potent: the principal may recover the secret profit through disgorgement or a constructive trust, withhold or recover compensation, and rescind tainted transactions, even without proving the principal suffered actual loss — the law strips the disloyal agent of the gain regardless of harm.

Beyond loyalty, the agent owes a duty of care (to act with the care, competence, and diligence normally exercised by agents in similar circumstances), a duty of obedience (to obey all reasonable directions of the principal and to stay within actual authority), and a duty to account for money and property received. The agent must also use reasonable effort to provide the principal with material facts the principal would want to know. A gratuitous agent still owes loyalty and obedience, but the standard of care is sometimes relaxed to reflect the unpaid nature of the undertaking.

Breach of these duties exposes the agent to damages, disgorgement, and, where the breach affected the agency's success, loss of the right to compensation under the faithless servant principle.

The Principal's Duties and the Servant/Independent-Contractor Line

The principal also owes the agent duties, which are usually framed in contract and quasi-contract terms. The principal must compensate the agent as agreed (or in reasonable value where no rate was fixed), reimburse the agent for authorized expenses and payments made on the principal's behalf, and indemnify the agent for losses and liabilities suffered while acting within authority and not due to the agent's own fault. The principal also owes duties to deal with the agent fairly and in good faith, to provide the agent with information about risks of harm, and not to interfere unreasonably with the agent's work.

Breach gives the agent ordinary contract and indemnity remedies.

The central external question — when is the principal liable to third parties for the agent's torts — begins with classifying the agent. A servant (employee) is an agent whose physical conduct in performing services is controlled or subject to the right of control by the master. An independent contractor performs work but is not subject to the principal's control over the manner and means of doing it.

Courts weigh multiple factors: the degree of control the principal has over the details of the work (the single most important factor), whether the worker is engaged in a distinct occupation or business, whether the work is usually done under supervision or by a specialist without supervision, the skill required, who supplies the tools and workplace, the length of employment, the method of payment (by time versus by the job), and whether the work is part of the principal's regular business. The classification is decisive because respondeat superior reaches only servants, not independent contractors.

Respondeat Superior and Scope of Employment

Under respondeat superior, a master is vicariously liable for torts committed by a servant within the scope of employment. This is liability without fault on the master's part — the master need not have been negligent; liability is imposed as a cost of doing business and because the master is better positioned to spread the loss. The two prerequisites are servant status (above) and scope of employment.

Conduct is within the scope of employment if it is of the kind the servant was employed to perform, occurs substantially within authorized time and space limits, and is actuated, at least in part, by a purpose to serve the master. Two recurring sub-doctrines police the time-and-space boundary. A detour is a minor, foreseeable deviation from the employer's business and remains within scope; a frolic is a substantial, personal deviation that takes the servant outside scope until the servant returns to the route or resumes the employer's business.

The going-and-coming rule generally places ordinary commuting outside the scope of employment, but exceptions arise where the employee is running a special errand for the employer, where travel is part of the job (a traveling salesperson), or where the employer pays for or controls the commute.

Intentional torts are generally outside the scope of employment because they are typically personal, but they fall within scope when force is inherent in the nature of the work (a bouncer's job involves force), when the tort furthers the employer's business (an overzealous repossession), or when the employer authorized or ratified the conduct. California applies a foreseeability test: an employer is liable when the tort is a generally foreseeable consequence of the enterprise's activities, even if the specific act was not authorized.

Liability for Independent Contractors and Direct Liability

The general rule is that a principal is not vicariously liable for the torts of an independent contractor, because the principal does not control the manner of the work. This rule, however, is riddled with exceptions that the bar tests heavily. First, non-delegable duties — duties imposed by law or public policy that the principal cannot escape by hiring out the work — keep liability with the principal (for example, a landowner's duty to keep premises safe for invitees, or duties imposed by statute or safety regulation).

Second, inherently dangerous activities (blasting, demolition, excavation, work near high-voltage lines) impose liability on the hiring party regardless of contractor status, because the risk cannot be eliminated by ordinary care. Third, apparent agency (agency by estoppel) can bind a principal where the principal holds the contractor out as an employee and a third party reasonably and detrimentally relies — the recurring hospital/franchise scenario in which a patient or customer reasonably believes the provider is an employee.

Separately, the principal may face direct (not vicarious) liability for its own negligence — for example, negligent hiring, retention, training, or supervision of an agent or contractor, or for giving negligent instructions. Direct liability does not depend on scope of employment; it depends on the principal's own breach of a duty of care that proximately caused harm. Finally, a principal who authorizes or ratifies a tort, or who is engaged with the agent in a joint enterprise, may be liable on those independent theories.