Restatement of Agency: Authority, Duties, and Liability

The Restatement of Agency is a treatise published by the American Law Institute that gathers the common law rules governing how one person (an agent) acts on behalf of another (a principal). It isn’t a statute, but courts across the country treat it as highly persuasive authority when they decide questions about authority, fiduciary duties, and liability in any relationship where someone delegates power to someone else.¹ The current edition is the third, published in 2006, and it governs the analysis judges reach for when a state’s own statutes and precedents don’t directly answer the question in front of them.

What the Restatement Is and How Courts Use It

The ALI has produced three editions of the Restatement of Agency: the first in 1933, the second in 1958, and the third approved in 2005 and published in 2006. Each edition reworks the prior framework around decades of accumulated case law. The ALI describes the current work as combining “clear black-letter provisions with extensive explanatory Comments, clarifying Illustrations, and detailed Reporter’s Notes.”¹

The scope is broad. The Restatement reaches corporate officers and their companies, employees and employers, real estate agents and their clients, and any other arrangement where one person acts on another’s behalf. Judges facing an agency question that isn’t resolved by state statute or binding precedent frequently work from the Restatement’s framework, which is why lawyers and litigants on both sides tend to argue inside its vocabulary.

When an Agency Relationship Exists

Section 1.01 defines agency as the fiduciary relationship that arises when a principal indicates the agent should act on the principal’s behalf, subject to the principal’s control, and the agent agrees to do so.² Three elements have to line up: the principal expresses the intent, the agent consents, and the principal holds a right of control.

The expression doesn’t have to be formal. A signed power of attorney counts; so does asking a neighbor to sell a car. The agent’s consent can be explicit or implicit, shown by simply starting the work. No written contract is required for a basic agency relationship to form, which is why people create them all the time without realizing it.

Control is the element most often misunderstood. It doesn’t mean constant supervision. It means the principal keeps the right to define the objective and direct the agent toward it. A homeowner who hires a real estate agent still controls the asking price and which offers to accept, even though the agent independently handles showings and negotiations. That retained authority over the result is enough to establish the relationship.

The Kinds of Authority an Agent Can Hold

Once the relationship exists, whether the agent can actually bind the principal to a given deal depends on what kind of authority the agent holds. The distinction matters because it decides who is on the hook when a transaction goes wrong.

Actual Authority

An agent has actual authority when, at the time of acting, the agent reasonably believes based on the principal’s communications that the principal wishes the agent to act.² Actual authority comes in two flavors. Express authority is spelled out, verbally or in writing. “Sell my car for no less than $20,000” is express authority with a clear boundary.

Implied authority fills in the practical gaps. Under Section 2.02, an agent has authority to take actions “necessary or incidental to achieving the principal’s objectives” as the agent reasonably understands them.³ If a principal hires an agent to manage a rental property, the agent has implied authority to call a plumber when a pipe bursts, even though plumbing was never discussed. The agent reads the principal’s objectives the way a reasonable person in that role would, given the context.

Apparent Authority

Apparent authority works from the outside in. Under Section 2.03, it exists when a third party reasonably believes the agent has authority, and that belief is traceable to the principal’s own conduct.² The agent’s actual instructions don’t matter here. What matters is what the principal signaled to the outside world.

This is where principals get burned. If a business owner gives someone a uniform, a name badge, and access to the register, a customer reasonably assumes that person can process transactions. Private instructions to the contrary don’t help the owner. The customer’s reasonable belief, created by the owner’s conduct, is what counts. A principal who wants to narrow an agent’s apparent authority has to communicate the limit to the third parties who would otherwise rely on it, not just to the agent.

Ratification of Unauthorized Acts

Agents sometimes act without any authority, and the principal later decides the result is worth keeping. Ratification is the Restatement’s mechanism for that scenario: an after-the-fact approval of an unauthorized act that makes the act legally binding as if the agent had been authorized from the start.⁴ A principal can ratify expressly, or by behaving in a way that makes approval obvious, such as pocketing the benefits of the deal.

Ratification comes with guardrails. The principal has to know the material facts about what the agent did before ratifying. The ratification has to come before the third party withdraws or before circumstances shift enough to make enforcement unfair. And the principal has to accept the whole transaction, not just the parts that worked out. Those limits exist so a principal can’t sit back, watch how the market moves, and then claim or disclaim the deal depending on which way it broke.

What the Agent Owes the Principal

Because the relationship is fiduciary, the agent owes duties that go beyond ordinary contract obligations. Violating them costs money: forfeited commissions, disgorged profits, damages for the principal’s losses.

Loyalty

Section 8.01 sets the baseline: the agent must act loyally for the principal’s benefit in all matters connected with the agency.² In practice that means no self-dealing, no hidden profits, and no competing with the principal during the relationship. A real estate agent who steers a buyer toward a property because the agent secretly owns a piece of it violates this duty. So does a purchasing agent who takes kickbacks from a supplier. Courts enforce loyalty strictly because the whole premise of agency is that the agent will subordinate personal interests to the principal’s.

Care

The agent must perform with the skill and diligence a comparable agent would use. The standard isn’t perfection. A financial advisor whose reasonable recommendation loses money hasn’t breached. An advisor who fails to research a product or ignores obvious warning signs has. The more specialized the agent’s role, the higher the expected baseline.

Following Instructions

Under Section 8.09, the agent must act within the scope of actual authority and comply with the principal’s lawful instructions.² The word “lawful” carries weight: the agent isn’t obligated to follow directions that would require breaking the law. But within legal limits, the principal’s instructions govern. An agent told to accept no less than $50,000 who closes at $40,000 because the deal seemed fair has breached, good intentions aside.

What the Principal Owes the Agent

The duties run both ways, and agents who don’t know this tend to lose money they could have recovered.

The most consequential obligation is indemnification. Under Section 8.14, a principal must reimburse an agent for payments made within the scope of the agent’s authority and for losses that should fairly fall on the principal given the nature of the relationship. If a third party sues the agent over actions the agent took on the principal’s behalf, the principal generally bears the cost of the defense. That duty exists even without a written agreement spelling it out, though a contract can modify the details.

The principal also has to honor any contractual promises to the agent, which most often means paying the agreed compensation. And the principal can’t unreasonably interfere with the agent’s ability to do the job. Assigning a sales agent a territory and then quietly undercutting that agent’s sales would breach this obligation.

When the Principal Is Liable for the Agent’s Conduct

When an agent harms a third party, who pays is usually the hardest-fought question in the case. The Restatement answers it through vicarious liability rules that attach responsibility to the principal in defined circumstances.

Respondeat Superior

Under respondeat superior, an employer is liable for wrongful acts committed by an employee acting within the scope of employment. Section 7.07(2) defines “within the scope” as performing work assigned by the employer or engaging in conduct subject to the employer’s control. An employee’s conduct falls outside that scope only when it is an independent course of action not intended to serve any purpose of the employer.²

A delivery driver who crashes while running the route creates liability for the employer. The same driver who crashes while using the truck for a weekend fishing trip probably does not, because the trip serves no employer purpose. The space between those two extremes is where most litigation lives. Small detours, mixed-purpose errands, and unauthorized ways of carrying out authorized tasks all generate disputes about who should bear the loss.

Employee or Independent Contractor

Respondeat superior reaches employees, not independent contractors, and the Restatement draws the line through control. Under Section 7.07(3)(a), an employee is an agent whose principal controls or has the right to control the manner and means of the agent’s performance.² A company that hires a plumber to fix a leak and waits for the result has engaged an independent contractor. A company that dictates when the worker arrives, which tools to use, and how to perform each step has an employee.

The exposure difference is large. If the plumber negligently floods a neighbor’s unit, the hiring company usually isn’t liable. If an employee doing the same work causes the same damage, the employer typically is. The Restatement also specifies that work performed without pay doesn’t change the analysis: a volunteer can be an employee for liability purposes if the principal controls the manner and means of the work.

Punitive Damages

A principal faces punitive damages for an agent’s conduct only in narrow circumstances. Under the Restatement’s complicity framework, punitive exposure attaches when a manager authorized both the act and the method, when the principal recklessly hired or kept on someone unfit for the role, when the wrongdoer held a managerial position and acted within the scope of employment, or when the principal ratified or approved the misconduct after the fact. The rule keeps punitive damages off the table every time a low-level employee misbehaves, while leaving them available when the wrongdoing traces to leadership.

When the Agent Is Personally Liable

Agents sometimes assume that acting on someone else’s behalf immunizes them from personal exposure. It doesn’t, and the gap shows up in two places.

Personal Liability for Wrongful Acts

An agent is always personally liable for the agent’s own wrongful conduct, whether or not the principal told the agent to do it. Agency status is not a shield against personal responsibility. If the principal is held vicariously liable and pays, the principal can seek reimbursement from the agent, as long as the principal didn’t direct the wrongful act. If the principal did order the wrong, the agent still faces the injured party personally but doesn’t owe the principal reimbursement.

Personal Liability on Contracts

The default on contracts is friendlier to agents. When an agent signs for a disclosed principal, the agent isn’t a party to the contract; the deal is between the third party and the principal. Three situations knock out that protection:

Undisclosed or partially disclosed principal. If the agent doesn’t reveal that someone else is behind the deal, or discloses the agency but hides the principal’s identity, the third party can hold the agent personally liable. Once the truth comes out, the third party chooses whether to go after the agent or the principal.
Acting without authority. An agent who claims authority the agent doesn’t have is liable to the third party on the theory that the agent implicitly guaranteed the power to make the deal.
Personal capacity. An agent who signs without indicating that someone else is the principal, or who personally guarantees the obligation, is on the contract individually.

The undisclosed-principal scenario shows up often in real estate and business acquisitions, where buyers use agents to keep their identities quiet and avoid inflated prices. The third party in those deals can sue either the agent or the principal once the arrangement surfaces.

How Agency Relationships End

Agency doesn’t last forever, and how it ends has legal consequences of its own.

Voluntary Termination

Either side can end the relationship at will. The principal can revoke the agent’s authority, and the agent can renounce it. A contract calling the arrangement “irrevocable” doesn’t actually prevent termination, though breaking that contract may expose the terminating party to damages. The real exception is an agency coupled with an interest: when the agent’s authority exists to protect a financial interest the agent holds in the subject matter of the agency, the principal cannot revoke. A lender authorized to sell collateral to satisfy the debt holds that kind of authority.

The parties can also end things by mutual agreement, by completing the task that defined the agency, or by letting a fixed time period run out.

Termination by Operation of Law

Some events end the agency automatically. The death of either party terminates it. So does either party losing the legal capacity to participate. If a change in law makes the agency’s purpose illegal, the agency ends. Bankruptcy of either party and serious disloyalty by the agent, such as embezzlement, also terminate the relationship by implication.

The Apparent Authority Trap

Here is the problem that catches principals off guard: ending the agent’s actual authority does not automatically end apparent authority. Under Section 3.11, apparent authority persists until a third party no longer has a reasonable basis to believe the agent still holds it.² A principal who fires a sales representative without notifying the customers that representative dealt with can still be bound by deals the former agent makes afterward. When you terminate an agent, notify the third parties who have been dealing with that agent. Until those third parties have reason to know the authority is gone, the principal stays on the hook.

1
The American Law Institute. Restatement of the Law Third, Agency
2
Open Casebook. Restatement of Agency (Third) Excerpts
3
Open Casebook. Business Associations – Agency Scope
4
Open Casebook. Business Associations – Ratification