Privity of contract is the rule that only the people who actually entered into a contract can enforce its terms or be held liable under them. If you did not sign the agreement, you generally cannot sue over a breach, and the other side generally cannot come after you. That default has been softened by several well-established exceptions — third-party beneficiaries, assignment, novation, and the near-total collapse of privity in product injury cases — but the starting point is still a hard line between insiders and outsiders.
The Default Rule
Privity describes the direct legal relationship between the parties to a contract. A buyer and seller are in privity. A landlord and tenant are in privity. Each has enforceable rights against the other because both consented to the same terms. Everyone else is outside the agreement, and outsiders — even obvious beneficiaries — have no standing to sue over it.
A simple illustration: you hire a painter to repaint your neighbor’s house as a gift, and the painter does a terrible job. Your neighbor may be upset, but your neighbor was not a party to the contract. Only you can sue the painter for breach. That remains true even though the whole point of the deal was to benefit your neighbor, unless the agreement was structured in a way that creates enforceable rights for them.
The reason the rule exists is predictability. Without a limit on who can enforce a contract, anyone tangentially connected to a deal could try to drag themselves into it. Privity draws the boundary.
Third-Party Beneficiaries
The oldest exception lets certain outsiders enforce a contract that was made for their benefit. Everything turns on whether the person is an intended beneficiary or merely an incidental one.
Intended Beneficiaries Can Sue
An intended beneficiary is someone the contracting parties specifically meant to benefit through performance. Under the Restatement (Second) of Contracts framework widely followed by courts, a person qualifies when giving them an enforceable right fits the parties’ intentions, and either the performance satisfies a debt owed to that person or the circumstances show the promisee wanted them to receive the benefit.
Life insurance is the textbook case. You pay premiums; the policy names your spouse. Your spouse never signed anything and has no direct relationship with the insurer, but the entire purpose of the contract is to pay your spouse when you die. That makes your spouse an intended beneficiary who can enforce the policy.
The beneficiary does not have to be identified by name, as long as the contract makes their identity determinable. A construction contract requiring the builder to pay all subcontractors makes those subcontractors intended beneficiaries even if none of them is individually listed.
Incidental Beneficiaries Cannot
An incidental beneficiary is someone who happens to benefit from a contract but was never meant to have enforceable rights. If a city hires a contractor to repave a road, the homeowners along that road benefit from the smoother street and possibly from higher property values. They cannot sue if the paving is defective. The city did not enter the contract to benefit them specifically; the benefit was a side effect.
The line is often blurry, and courts spend real energy on it. The practical test is intent: did the parties structure the deal so that performance would flow to this specific third party, or did the benefit just happen to land there?
When Beneficiary Rights Lock In
An intended beneficiary’s rights are not fixed from the moment the contract is signed. Before those rights vest, the original parties can modify or cancel the contract without consulting the beneficiary. After vesting, they cannot change or eliminate the beneficiary’s rights without consent.
Vesting happens on any of three triggers:
- The beneficiary assents to the promise in the manner the parties requested.
- The beneficiary files a lawsuit to enforce the contract.
- The beneficiary materially changes position in reliance on the promise, such as quitting a job or turning down another offer.
Until one of those happens, the contracting parties keep full freedom to rewrite the deal. People sometimes assume that being named in a contract gives them ironclad rights the moment ink hits paper. It does not, if they have not yet relied on the promise or moved to lock in their position.
Assignment of Rights
Assignment is the transfer of your contractual rights to someone else. If a contract entitles you to a $10,000 payment, you can usually assign that right to a third party, called the assignee, who steps into your position and collects the payment directly. The assignee receives exactly the rights you had — no more, no less.
Most contractual rights can be assigned unless doing so would fundamentally change what the other party bargained for. You cannot assign a right when the assignment would materially increase the burden or risk on the other party, or significantly reduce their chance of getting the performance they expected.
Delegation of Duties Is Not the Same Thing
Rights transfer fairly easily. Duties do not. You can delegate the work you owe under a contract to someone else, but you stay on the hook if they fail to perform. Under the Uniform Commercial Code, which governs sales-of-goods contracts in nearly every state, “no delegation of performance relieves the party delegating of any duty to perform or any liability for breach.”1Legal Information Institute. UCC 2-210 Delegation of Performance; Assignment of Rights The other party can also demand assurances from your delegate, and if those are not forthcoming, treat it as a potential breach.
This is where many people get tripped up. Hiring a subcontractor to handle your obligations does not make your obligations disappear. If the subcontractor botches the job, the other contracting party comes after you, not the subcontractor. The only way to escape your original duties entirely is a novation.
Anti-Assignment Clauses and Their Limits
Contracts sometimes prohibit assignment. These clauses are generally enforceable when they restrict the delegation of work or services. If you hired a specific graphic designer for their artistic talent, a clause stopping them from handing the project to someone else will hold up.
Anti-assignment language has a significant blind spot when it comes to money. Under UCC § 9-406, a contract term that prohibits or restricts the assignment of payment rights — accounts receivable, promissory notes, and similar payment obligations — is ineffective.2Legal Information Institute. UCC 9-406 Discharge of Account Debtor; Notification of Assignment; Identification and Proof of Assignment; Restrictions on Assignment of Accounts, Chattel Paper, Payment Intangibles, and Promissory Notes Ineffective The policy reason is that businesses need to be able to pledge their receivables as collateral or sell them for cash flow, and blanket prohibitions should not block that.
There is also a useful interpretive rule. When a contract says “this contract may not be assigned” without further detail, courts typically read that as barring only the delegation of duties, not the assignment of rights.1Legal Information Institute. UCC 2-210 Delegation of Performance; Assignment of Rights A vague prohibition may be narrower than the drafter intended.
Novation: Actually Getting Released
Novation is related to assignment but goes further. Instead of one party transferring a right while remaining potentially liable, a novation substitutes a completely new party into the contract and releases the original party from all obligations. The old contract is extinguished and a new one takes its place.
The critical requirement is consent. All parties, including the one staying from the original contract, must agree to the substitution. Without that consent, what you have is a delegation, not a novation, and the original party remains responsible. Calling a delegation a novation does not make it one.
Novation comes up often in business acquisitions, where a new owner takes over existing contracts, and in lease transfers, where a new tenant replaces the original with the landlord’s agreement. In each case, the original party walks away clean, which assignment and delegation alone cannot accomplish.
Products Liability and Warranty Claims
Privity used to be a serious obstacle for consumers injured by defective products. If you bought a car from a dealer and a manufacturer’s defect caused an accident, you had privity with the dealer but not with the manufacturer, the party actually responsible. Courts recognized early in the twentieth century that this produced absurd results, and the privity barrier in product injury cases has been almost entirely dismantled.
On the negligence side, courts have long held that a manufacturer owes a duty of care to anyone foreseeably endangered by a negligently made product, regardless of who bought it. If a product is reasonably certain to endanger people when made carelessly, and the manufacturer knows people beyond the immediate buyer will use it, the manufacturer has a duty to build it properly whether a contract runs to the injured person or not.
On the warranty side, the UCC extends warranty protections beyond the immediate buyer. States have adopted one of three alternatives under UCC § 2-318, which reach different groups of non-buyers.3Legal Information Institute. UCC 2-318 Third Party Beneficiaries of Warranties Express or Implied The narrowest version covers household members and guests who could reasonably be expected to use the product and are injured. The broadest covers any person who could reasonably be expected to use or be affected by the goods and is injured. The version in your state determines how far warranty claims reach, but all three override privity for at least some non-buyers.
Where Privity Catches People Off Guard
Privity matters most when something goes wrong. The first question any court asks is whether you have standing, and standing in a contract dispute starts with privity. If you are outside the contract and no exception applies, the claim dies before it reaches the merits.
A few situations where this bites in practice:
- Subcontractor disputes. A homeowner hires a general contractor, who hires subcontractors. The homeowner typically has no privity with the subcontractors and may not be able to sue them directly for poor work. The claim runs through the general contractor.
- Secondhand purchases. You buy a used appliance from a neighbor. The manufacturer’s warranty ran to the original buyer. Whether you can make a warranty claim depends on your state’s version of UCC § 2-318 and whether the warranty terms allow transfer.
- Employee claims on employer contracts. Your employer signs a contract with a vendor that includes provisions benefiting employees. Unless the contract clearly identifies employees as intended beneficiaries, the employees likely cannot enforce those provisions.
If you expect to enforce a contract you are not signing, the safest route is to be named as an intended beneficiary in the agreement itself, with language specific enough to survive a motion to dismiss.