Assignment and delegation in contracts are the two tools for moving pieces of an existing deal to someone new without tearing the agreement up. Assignment transfers a right under the contract, usually the right to receive a payment or benefit. Delegation transfers a duty, the obligation to perform the work. They sound similar, and they often happen in the same transaction, but they produce very different consequences for who remains on the hook when something goes wrong.
What Assignment Does to Contract Rights
An assignment moves a contractual right from the assignor to a new party, the assignee. The party who still owes performance, the obligor, doesn’t change. A retailer who sold goods on credit might assign the right to collect those payments to a bank; the bank becomes the assignee, the retailer is the assignor, and the customer paying off the balance is the obligor.
Once the assignment is valid, the assignor’s right to that benefit is extinguished. The assignee alone can enforce it against the obligor.1LexisNexis. Restatement (Second) of Contracts 317 – Assignment of a Right The assignor cannot later demand or collect that same benefit.
Notice is the turning point for the obligor. Before the obligor is told about the assignment, payments made to the original assignor still count as valid performance. After proper notice, the obligor must pay the assignee; paying the wrong party at that point doesn’t discharge the debt.
The Assignee Takes the Right As It Stands
An assignee gets exactly the rights the assignor had, nothing more. Any defense the obligor could have raised against the assignor works just as well against the assignee. If the goods were defective, that defect is good against the bank that bought the payment stream. Some commercial contracts try to override this with a waiver-of-defense clause, and those clauses can be enforceable between businesses, but courts limit them in consumer deals. Fundamental defenses like fraud, duress, and incapacity can never be waived.
What Delegation Does to Contract Duties
Delegation handles the other side. Instead of changing who receives performance, it changes who performs. The delegator appoints a delegatee to do the work originally promised to the obligee. A general contractor who hands the plumbing portion of a renovation to a specialized subcontractor has delegated that duty.
Here is where delegation and assignment part ways. The delegator does not walk away. The UCC puts this plainly: “No delegation of performance relieves the party delegating of any duty to perform or any liability for breach.”2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights If the subcontractor botches the job, the homeowner can pursue both the general contractor and the subcontractor. That shared liability is the protection built into delegation.
The obligee has to accept competent performance from the delegatee as long as it meets the quality the original agreement called for. The obligee can’t refuse delivery just because a different face shows up at the door, unless personal performance was part of the bargain.
When a Transfer Won’t Work
Not every right can be assigned, and not every duty can be delegated. Some limits come from the law, and plenty come from the contract itself.
Assignments That Change What the Obligor Faces
An assignment is barred if it would materially change the duty of the obligor, materially increase the risk the obligor bears, or materially reduce the obligor’s chance of getting return performance.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights The Restatement applies the same test.1LexisNexis. Restatement (Second) of Contracts 317 – Assignment of a Right An insurance policy is the standard example: assigning it to a higher-risk individual rewrites the insurer’s exposure, so the law doesn’t permit it. Assignments that violate a statute or public policy are also blocked.
Personal Services That Can’t Be Handed Off
A duty can be delegated unless the obligee has a substantial interest in having the original party perform personally.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights Commissioning a particular artist to paint a portrait is the classic illustration; the identity of the performer is the whole point. The same logic covers legal representation, medical care, and other services chosen for specific skill or reputation.
Anti-Assignment Clauses in the Contract
Contracts commonly include language forbidding assignment or delegation without consent. These clauses do less than most readers assume. A clause that prohibits assignment of “the contract” is generally read as barring only delegation of performance, not assignment of rights.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights Even a clause that specifically prohibits assigning rights usually doesn’t void an assignment that happens anyway. Under the UCC and the Restatement, the assignment is still effective; the assignor may be liable for breach of the anti-assignment clause, but the obligor’s remedy is damages against the assignor, not refusal to perform for the assignee.
Two kinds of rights survive anti-assignment clauses entirely: a right to damages for breach of the whole contract, and a right that arose from the assignor fully performing their side.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights
For payment rights specifically, UCC Article 9 goes further. A contractual term that prohibits or restricts assignment of an account, payment intangible, or promissory note is simply ineffective.3Legal Information Institute. Uniform Commercial Code 9-406 – Discharge of Account Debtor; Notification of Assignment Commercial credit depends on the free assignability of payment rights, and contract language isn’t allowed to shut that down.
When Consent Can Be Withheld
If the contract requires the other party’s consent before a transfer, the question is often whether that consent can be refused for any reason. The answer depends on the contract language and the applicable law. In some settings, particularly commercial leases, courts apply an objective reasonableness standard, and the financial responsibility of the proposed transferee is usually the controlling factor. Refusals based on personal taste or because the proposed transferee is a competitor generally aren’t reasonable grounds.
When You Need a Novation Instead
If the real goal is to swap out a party entirely and release them from future liability, neither assignment nor delegation gets you there. Assignment transfers rights but can leave residual exposure. Delegation transfers duties but keeps the delegator liable. Novation is the clean exit.
A novation extinguishes the original contract and creates a new one between the remaining party and the incoming party. The outgoing party is released. Four elements are required:
- An existing valid contract between the original parties.
- Consent of all three parties: the remaining party, the departing party, and the new party.
- Extinguishment of the old contract, not merely an amendment.
- A valid new contract that meets all standard formation requirements, including consideration.
Three-party consent is what makes novation harder than assignment or delegation, neither of which requires the other side’s agreement unless the contract says so. Novation agreements are typically written and signed by all three parties, with the mutual release of obligations under the old contract supplying the consideration for the new one.
Giving Notice and Documenting the Transfer
Notice is what makes an assignment binding on the obligor. Before notice, the obligor can safely perform to the assignor. After notice, performance has to go to the assignee or the obligor risks paying twice. Defective or missing notice is one of the most common reasons assignment disputes end up in court.
A written notice should identify the original contract by date and description, name the assignor and assignee, specify which rights have been assigned, and tell the obligor to direct future performance to the assignee. Certified mail with return receipt gives proof of delivery.
For a delegation, the obligee should also get written notice naming the delegatee and the scope of duties being handed off. The UCC gives the obligee an added tool: when an assignment includes delegation of performance, the obligee may treat the delegation as reasonable grounds for insecurity and demand adequate assurances from the delegatee.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights
Before signing any transfer, read the original contract for consent requirements, notice periods, and anti-assignment language, and compare the clause against what you’re actually trying to do. The transfer document should state exactly which rights or duties are moving, identify every party by legal name, reference the original contract, and spell out any consideration. Watch the language: when an assignment of “the contract” or of “all my rights” is made in general terms, the UCC treats it as both an assignment of rights and a delegation of duties, and the assignee’s acceptance of the assignment is treated as a promise to perform those duties.2Legal Information Institute. Uniform Commercial Code 2-210 – Delegation of Performance; Assignment of Rights Loose drafting can saddle the assignee with obligations they never meant to take on.
Some simple assignments can be made orally, but the Statute of Frauds requires a writing for certain contracts, including real estate deals and, under the UCC, contracts for the sale of goods priced at $500 or more.4Legal Information Institute. Uniform Commercial Code 2-201 – Formal Requirements; Statute of Frauds Even when writing isn’t legally required, a written transfer agreement prevents disputes about what was actually transferred. If the original contract requires consent, the transfer isn’t binding until the other party signs an acknowledgment.
Tax Trap on Assigned Income
Assigning a contract right doesn’t necessarily shift the tax bill. Under the assignment of income doctrine from the Supreme Court’s decision in Lucas v. Earl, income is taxed to the person who earns it, and that result can’t be rearranged through “anticipatory arrangements and contracts, however skillfully devised.”5Justia. Lucas v. Earl, 281 U.S. 111 (1930) Perform services, assign the right to collect, and the tax still lands on you.
One significant exception covers transfers between spouses or former spouses incident to divorce. Under Internal Revenue Code Section 1041, the assignment of income doctrine does not apply, and the person who ultimately receives the income reports it rather than the one who originally held the right.6Internal Revenue Service. Revenue Ruling 2002-22 Outside that context, anyone planning an assignment of an income stream should check with a tax professional before assuming the liability follows the money.