Successors and Assigns Clause: What It Binds and What It Does Not

A successors and assigns clause says the contract binds and benefits not just the two signers, but whoever properly steps into their shoes later. It looks like throwaway boilerplate at the end of an agreement. It is not. It decides whether your deal survives a merger, an asset sale, or a corporate reorganization on the other side. The catch most people miss: this clause does not grant a right to assign. It only confirms what happens once an assignment is otherwise permitted.

Reviewed and corrected on 11 October 2026. This is general information, not legal advice; check the cited statute or opinion before relying on it.

TL;DR

• A successors and assigns clause makes the contract binding on, and enforceable by, each party's successors and permitted assigns. It carries the deal forward when a party is reorganized, merged, or sold.
• It does not by itself authorize assignment. Read it together with the assignment clause, which is what actually grants or restricts the right to transfer.
• The word that is cheap insurance is "permitted." "Successors and permitted assigns" ties the binding effect to assignments the contract allowed. A binding-effect clause is not normally read as authorizing a transfer the assignment clause bars, but adding the word removes the doubt.
• The clause matters most in change of control. Whether a stock sale or merger moves the contract turns on the assignment clause, state merger law and, for software and patent licenses, a federal presumption against transfer, not on this line alone.
• A bare boilerplate version can help you (the deal travels with a sale) or surprise you (you are now bound to an acquirer you did not vet). Which one depends entirely on the assignment language sitting next to it.

What a successors and assigns clause actually does

The clause does one narrow job, and it is easy to overstate it. It says that once someone properly becomes a party's successor or assignee, the contract binds and benefits them as if they had signed it.

Two terms carry the meaning:

1. Successors. A successor is an entity that takes over a party's existence or business by operation of law or by transaction. The classic example is the surviving company in a merger. Successors usually arrive without anyone signing an assignment, because a merger transfers rights and obligations automatically under state corporate law.

2. Permitted assigns. An assignee is a third party that takes a party's rights, and often its duties, through a deliberate transfer. "Permitted" limits this to assignments the contract actually allows. The successors and assigns clause then confirms the assignee is bound, but it never decides whether the assignment was allowed in the first place.

So the clause is downstream of two other things: state merger law (for successors) and the assignment clause (for assigns). It plumbs the contract through to whoever lawfully takes a party's place. It does not open the valve.

Why it matters: the dollars at stake

Picture a buyer acquiring a software company largely for its book of customer contracts, worth $3,000,000 a year in recurring revenue. The buyer assumes those contracts will come along with the deal.

• If each contract binds successors and permitted assigns, and the assignment clause permits assignment to an acquirer, the contracts travel cleanly to the buyer. Full value preserved.
• If the contracts say nothing about successors, and the assignment clause bars assignment without consent, the buyer may have to chase consent from every customer. The contracts that cannot transfer get discounted, and the purchase price drops.

The successors and assigns line did not move that value by itself. It worked in tandem with the assignment clause. But its absence is a red flag in diligence, because a contract silent on successors invites an argument that the deal does not bind the buyer at all.

Who wants what

This clause is rarely fought on its own. The negotiation that decides its real effect happens one section up, in the assignment clause. Here, the only live issue is usually whether "permitted" stays in and whether the binding effect runs to both sides.

Market-standard language

A standard mutual successors and assigns clause reads close to this:

This Agreement binds and inures to the benefit of the parties and their
respective permitted successors and assigns. Nothing in this Section is
deemed to permit any assignment, transfer, or delegation otherwise
restricted under Section [Assignment].

The second sentence is the one in-house counsel should look for. It makes the relationship explicit: the binding-effect line confirms who is bound, but it does not loosen the assignment restrictions. Without that sentence, a counterparty can argue the "successors and assigns" language is itself a grant of assignment rights.

A shorter, common variant drops the cross-reference and relies on the assignment clause standing nearby:

This Agreement is binding upon and inures to the benefit of the parties
and their respective permitted successors and assigns.

Both work, but the longer form removes ambiguity. If the agreement uses the short form, confirm the assignment clause is clear and restrictive enough to carry the load on its own.

The negotiation: standard, fallback, walk-away

There is not much to trade inside this clause itself. The leverage lives in the assignment terms. Still, a few points come up.

The walk-away in the first row is the one to watch. A binding-effect clause is not normally read as authorizing a transfer the assignment clause bars, but a bare "successors and assigns" next to a weak or silent assignment clause invites the argument. Keep "permitted" or fix the assignment clause.

Common variations (and the language that creates them)

The phrasing shifts the meaning more than the heading suggests.

• Binds and benefits both sides. "Binds and inures to the benefit of" is the full, mutual form. Use both halves for completeness. Whether a successor can enforce depends on how it took the contract, not on the phrase alone.
• "Permitted" included. "Successors and permitted assigns" is the careful default. It ties the binding effect to assignments the contract allowed.
• "Permitted" dropped. "Successors and assigns," with no qualifier, is the looser form. It is not normally read as a grant of assignment rights, but it leaves room for the argument.

This Agreement binds and inures to the benefit of the parties and their
respective successors and assigns.

That version, with no "permitted," reads cleanly but says nothing about which assignees the parties approved. Pair it with a strict assignment clause or add the qualifier back.

Jurisdiction and enforceability notes

Successors and assigns clauses are routinely enforced, but their reach depends on facts and on the law that governs the contract. The points below are the ones we read primary sources for in October 2026; other states' law was not surveyed, so confirm against the controlling state's current law.

• Mergers transfer rights by operation of law. Under Delaware's merger statute, the rights, property and things in action of each constituent corporation are vested in the surviving corporation (8 Del. C. 259(a)). Ohio's statute is to the same effect: the surviving entity possesses the constituents' assets and rights, "all of which are vested in the surviving or new entity without further act or deed" (Ohio R.C. 1701.82(A)(3)). A successors clause confirms this, but the transfer comes from state corporate law, not the clause.
• Anti-assignment clauses and mergers: the answer depends on the merger form, the wording and the governing law. In a reverse triangular merger, where the contracting company survives, the Delaware Court of Chancery held there was no assignment "by operation of law or otherwise" (Meso Scale Diagnostics, LLC v. Roche Diagnostics GmbH, 62 A.3d 62 (Del. Ch. 2013)). That court declined to follow a California federal decision that treated a reverse triangular merger as an assignment under California law (SQL Solutions, Inc. v. Oracle Corp., 1991 WL 626458 (N.D. Cal. Dec. 18, 1991), as described in Meso Scale). Do not assume a merger is safe just because it is not a "sale."
• Software and patent licenses follow a federal presumption. For patent and copyright licenses, federal common law presumes the license is personal and non-transferable unless the contract says otherwise, and the Sixth Circuit has held that this overrides a state merger statute. In PPG Industries, Inc. v. Guardian Industries Corp., 597 F.2d 1090 (6th Cir. 1979), a patent license did not pass to the surviving corporation in a statutory merger. In Cincom Systems, Inc. v. Novelis Corp., 581 F.3d 431 (6th Cir. 2009), an internal restructuring merger was a prohibited transfer of a software license, because, in the court's words quoting PPG, "a transfer is no less a transfer because it takes place by operation of law rather than by a particular act of the parties." These are Sixth Circuit decisions; other circuits were not reviewed.
• A binding-effect clause is not a grant of rights. Read with the assignment clause, "successors and assigns" confirms who is bound once a transfer is permitted. In Meso Scale the contract's binding-effect sentence opened "Subject to the preceding sentences," tying it to the anti-assignment language before it, which is the drafting this page recommends. The holding there turned on the "by operation of law" wording and the merger form, not on the binding-effect sentence.
• Stock sales versus asset sales. Under Delaware law, "stock purchase transactions, by themselves, do not result in an assignment by operation of law" (Meso Scale, quoting Baxter Pharmaceutical Products, Inc. v. ESI Lederle Inc., 1999 WL 160148 (Del. Ch. Mar. 11, 1999), and Branmar Theatre Co. v. Branmar, Inc., 264 A.2d 526, 528 (Del. Ch. 1970)). A pure stock sale does not change the contracting entity, so it often does not trigger a bare assignment restriction, though a license may carry its own change-of-control rule. An asset sale does involve a transfer, and the assignment and successors language then controls.
• If you want a veto on a change of control, write one. The Meso Scale court's closing point: the plaintiffs "could have negotiated for a 'change of control provision.' They did not." See the change of control clause.

This is general information, not legal advice for a specific deal. Whether a particular reorganization carries a contract forward depends on the transaction structure, the assignment clause, and the governing law. Confirm the current rule in the controlling state before you rely on it. For the related transfer mechanics, see our guide on the assignment clause.

Review checklist: red flags to catch

• The clause says "successors and assigns" with no "permitted" qualifier, next to a weak or silent assignment clause.
• There is no successors and assigns clause at all, which weakens the argument that your deal binds a counterparty's acquirer.
• The binding effect is one-sided, binding only one party's successors when the deal is presented as mutual.
• The clause reads as an independent grant of assignment rights rather than a confirmation of who is bound.
• The assignment clause and the successors clause conflict, for example liberal assignment in one and "no successors" in the other.
• The clause uses only "binds" and omits "inures to the benefit of," which leaves the benefit side unstated. Use both halves for completeness.
• A change of control is not addressed anywhere, so it is unclear whether an acquisition moves the contract.

How it interacts with other clauses

The successors and assigns clause is almost never read alone. Pair it with:

• Assignment: the clause that actually grants or restricts transfer. The successors line only confirms that a permitted assignment carries the contract along.
• Change of control: decides whether a merger or ownership change counts as an assignment or triggers a termination right, which determines whether the contract reaches the new owner.
• Governing law: controls how a court reads "successor," whether a merger triggers the assignment clause, and how the binding effect is enforced.

For the broader drafting workflow, see how to draft a contract. You can also browse the full clause library for related boilerplate.

FAQ

What is a successors and assigns clause? It is a contract provision stating that the agreement binds and benefits each party's successors and permitted assigns. It carries the contract forward to whoever properly steps into a party's place, such as the surviving company in a merger or an approved assignee.

Does a successors and assigns clause allow assignment? No. It confirms who is bound once an assignment is permitted, but it does not grant the right to assign. The assignment clause is what allows or restricts transfers. Treating the binding-effect line as permission is a common mistake.

What is the difference between a successor and an assign? A successor takes over a party's business or existence, usually by operation of law, like the surviving entity in a merger. An assign takes a party's rights through a deliberate transfer. Successors typically arrive without a signed assignment; assigns come through one.

Why does the word "permitted" matter? "Permitted successors and assigns" ties the binding effect to assignments the contract actually allowed. A binding-effect clause is not normally read as authorizing a transfer the assignment clause bars, but dropping "permitted" invites the argument. Adding the word is cheap insurance.

Does a merger trigger an anti-assignment clause? It depends on the form of the merger, the clause's wording and the governing law. A reverse triangular merger, where the contracting company survives, was held not to be an assignment under Delaware law (Meso Scale, 62 A.3d 62), while a California federal court reached the opposite result. For software and patent licenses, the Sixth Circuit treats a merger that moves the license as a prohibited transfer (PPG, 597 F.2d 1090; Cincom, 581 F.3d 431). Confirm the controlling rule before assuming a merger is safe.

Is a successors and assigns clause just boilerplate I can ignore? No. A bare line can help you, because the deal travels with a sale, or surprise you, because you are now bound to an acquirer you did not vet. Which one happens depends on the assignment language next to it. Read the two together.

What happens if a contract has no successors and assigns clause? The contract may still bind successors under general law, especially after a statutory merger (see 8 Del. C. 259(a)), but its silence invites an argument that a buyer is not bound. In M&A diligence, a missing successors clause is a flag worth raising before closing.

Arshita Anand

Co-Founder & CEO · Attorney

Arshita leads product and strategy at Vaquill AI, the US primary law data API. As an attorney, she decides which law we carry, how each section is sourced and cited, and what legal AI and compliance teams need from the data.