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Key Facts
- State level: An assignment of rights transfers a contractual benefit from the assignor to the assignee; it is different from delegating a duty to perform.
- State level: The contract, the governing state’s law, and the kind of right involved determine whether an assignment is effective and what limits apply.
- State level: Under UCC section 2-210, rights in a sale-of-goods contract generally may be assigned unless the transfer would materially change the other party’s duty, burden, risk, or prospect of return performance.
- State level: For certain payment rights, UCC Article 9 governs the effect of notice, the account debtor’s defenses, and some anti-assignment terms.
- Federal level: Specialized federal rules apply to particular assets, including claims against the United States and transfers of copyright ownership.
An assignment of rights moves a contractual benefit from one party to another. The person transferring the right is the assignor; the recipient is the assignee. The party that owes the underlying performance is often called the obligor, or an account debtor when Article 9 uses that term.
The word “assignment” does not answer every legal question. The result depends on the language of the original contract, the assignment document, the governing state’s enacted law, and the nature of the right being transferred.
Assignment transfers a right; delegation shifts performance
A right is a benefit one party may claim, such as payment for delivered goods. A duty is promised performance, such as delivering those goods. Assigning the payment right does not necessarily transfer the duty to deliver, and delegating performance does not necessarily transfer the right to payment.
UCC section 2-210 illustrates the distinction for contracts involving sales of goods. It permits delegation unless the parties agreed otherwise or the other party has a substantial interest in performance by the original promisor. It also states that delegation does not by itself relieve the delegating party of its duty or liability for breach.
The same section generally permits assignment of a buyer’s or seller’s rights unless the transfer would materially change the other party’s duty, materially increase its burden or risk, or materially impair its chance of receiving return performance. Because states enact their own UCC versions, the controlling state text must be checked.
The original contract still matters
An assignment cannot ordinarily give the assignee more than the assignor transferred. The document should identify the underlying agreement and the specific rights covered, state when the transfer takes effect, and distinguish a complete transfer from a limited or security assignment.
Consent and anti-assignment clauses require careful reading. A clause may address the transfer of rights, the delegation of duties, or both. UCC section 2-210 also provides a specific construction rule for a prohibition on assigning “the contract” in a sale-of-goods transaction: unless circumstances indicate otherwise, that language bars delegation of performance rather than assignment of rights.
Article 9 can make some restrictions on assigning payment rights ineffective, but its rules are detailed and contain exclusions. Section 9-406 addresses accounts, chattel paper, payment intangibles, and promissory notes, while section 9-408 covers specified promissory notes, health-care-insurance receivables, and general intangibles. Neither provision creates a universal rule that every contract right is freely transferable.
Notice can change where payment is discharged
For the categories covered by UCC section 9-406, an account debtor may discharge the obligation by paying the assignor until receiving an authenticated notification that reasonably identifies the assigned right and directs payment to the assignee. After effective notification, payment to the assignor generally no longer discharges the obligation.
If the account debtor requests reasonable proof of the assignment, section 9-406 permits payment to the assignor to discharge the obligation when the assignee does not seasonably provide that proof. The statute also specifies circumstances in which a notification is ineffective.
The assignee may take subject to defenses
An assignment changes who holds the right; it does not automatically erase problems in the original transaction. Subject to statutory exceptions, UCC section 9-404 makes an assignee’s rights subject to the original agreement’s terms and to defenses or recoupment claims arising from that transaction. It also addresses certain other claims that accrue before authenticated notice of the assignment.
This principle explains why identifying the right is only part of the analysis. The assignee’s practical position may depend on what performance occurred, what defenses existed, when notice arrived, and whether another law changes the ordinary rule.
Some assets have specialized federal transfer rules
Federal law creates separate formalities for some assignments. Under 17 U.S.C. section 204(a), a transfer of copyright ownership other than by operation of law is not valid unless a conveyance, note, or memorandum is in writing and signed by the owner of the rights conveyed or an authorized agent.
Claims against the federal government are another specialized area. Title 31 U.S.C. section 3727 defines an assignment of such a claim and generally permits one only after the claim is allowed, its amount is decided, and a payment warrant is issued, subject to a detailed financing-institution exception for qualifying contract payments.
These federal provisions do not replace the ordinary state-law analysis for every commercial assignment. They show why the asset itself must be identified before assuming that a general contract rule controls.
An assignment document records the transfer’s boundaries
A written assignment commonly identifies the parties, the source contract, the rights transferred, excluded rights, the effective date, consideration if relevant, representations about ownership or prior transfers, governing law, and signatures. Whether any item is legally required depends on the right and governing law; copyright ownership, for example, has the federal signed-writing rule described above.
An assignment is also distinct from a novation agreement. A novation substitutes a party and releases the original obligor through the required agreement, while a delegation ordinarily does not itself release the delegating party. The broader UCC guide explains why sales and secured-transactions rules can affect particular assignment questions.
