In a contract, “hereunder” means “under this agreement.” It is a self-referential shorthand that ties whatever right, duty, or procedure it modifies to the specific document where the word sits, and nothing else. If a clause refers to “payments due hereunder” or “notices required hereunder,” the terms governing those payments or notices live inside that contract, not in a side letter, a prior deal, or a separate agreement between the same parties.
The word does real work despite looking like filler. Break it apart: “here” points to the document you are reading, and “under” means governed by or subject to. Put together, hereunder draws a boundary around the four corners of the agreement. If you have three contracts with the same business partner, a clause referencing “rights hereunder” reaches only the contract where that clause appears. That containment matters when disputes arise, because it stops one side from pulling a right out of Contract A to argue a point about Contract B.
The scope usually extends to anything formally incorporated into the agreement: attached schedules, exhibits, and addenda the contract pulls in by reference. An exhibit that the agreement references and attaches is covered. A document the contract never mentions is not.
Hereunder Compared to Herein, Hereof, and Hereby
Hereunder is part of a small family of compound words that all begin with “here” and point in slightly different directions. Contracts sometimes define them collectively in a boilerplate clause stating that “hereof, herein, hereunder, and hereby refer to this Agreement as a whole.” When they are not collectively defined, each carries its own shade:
- Herein means “in this document.” It typically introduces definitions or references terms contained in the agreement, as in “as defined herein.”
- Hereof means “of this document.” It points to a specific section or component, as in “Section 5 hereof” or “the date hereof.”
- Hereby means “by means of this document.” It signals that the act of executing the document itself accomplishes something, as in “the parties hereby agree” or “Seller hereby assigns.”
- Hereunder means “under this document” or “pursuant to this document.” It connects an obligation, right, or procedure to the governing terms of the agreement.
Drafters often use these words interchangeably, and that is exactly what creates problems. A contract that uses “herein” in one clause and “hereunder” in another to mean the same thing invites a creative litigator to argue the drafter intended different scopes. Consistency throughout the document matters more than which specific term the drafter picked.
Phrases You Will Actually See
A handful of hereunder phrases appear so often that recognizing them tells you quickly what the contract is requiring.
- “Notices required hereunder” means any formal communication, whether a default warning, termination letter, or request for consent, must follow the delivery method the agreement spells out. If the notice provision says certified mail to a specific address, an email will not count even if the other side actually reads it.
- “Payments due hereunder” ties timing, method, and amount to the contract’s internal terms. Late-payment interest, grace periods, and acceptable payment methods come from the agreement itself.
- “Rights and remedies hereunder” limits recourse to what the contract provides. It often appears alongside language preserving rights “at law or in equity” to clarify whether the contract is the exclusive remedy or just one option.
- “Obligations hereunder” is common in indemnification clauses, tying the indemnifying party’s duty to cover losses to the scope of the agreement. The indemnity only kicks in for liabilities connected to performance under that specific contract.
These phrases create a closed system. Every procedural requirement, from how you send a letter to how you calculate a penalty, traces back to the document rather than to an external standard or a prior course of dealing.
Watch Hereunder in Survival Clauses
One place where the word creates real trouble is in survival language, which governs what obligations continue after the contract ends. A clause might state that “the indemnification obligations hereunder shall survive termination for a period of two years.” That sounds clear, but courts have split on whether such language actually bars claims brought after the survival period or merely confirms the obligations continue during that window.
A 2024 Ohio case found that a survival clause lacked the “unequivocal language” needed to function as a hard cutoff for indemnification claims. Saying obligations “survive” for a set period did not explicitly state that claims were barred afterward, so the court declined to read it as a contractual statute of limitations.
If a survival clause uses hereunder to describe what survives, look at whether it also says what happens when the survival period ends. Well-drafted versions state not just that obligations survive for a defined period but that they “terminate” and “shall not survive” beyond it, and that the parties intend the language to replace any otherwise applicable statute of limitations. Vague references to obligations “hereunder” surviving, without that precision, give each side an argument in court.
What Happens When the Scope Is Unclear
When parties fight over what hereunder refers to, a court has to decide whether the drafter meant “under this entire agreement” or “under this specific section.” The answer is not always obvious. In one insurance dispute, an arbitration panel concluded that “hereunder” in a policy provision referred only to the two articles immediately below the clause where the word appeared, not the entire reinsurance contract. The losing insurer tried to vacate the decision, and the court refused.
Courts generally read the word in context, looking at surrounding provisions and the agreement’s overall structure. They check whether the term is used consistently throughout the document. If the drafter used hereunder to mean “this whole agreement” in nine places and arguably meant “this section” in the tenth, a court will likely read the tenth the same way. And when genuine ambiguity persists, many courts apply contra proferentem, construing the ambiguity against the party who drafted the contract.
This is where sloppy drafting gets expensive. Litigating the meaning of a single word can consume months of discovery and briefing, and the outcome often turns on whether hereunder was placed in a subsection when the drafter meant it to cover the whole article.
Why Modern Drafters Are Dropping the Word
Hereunder has survived in legal writing for centuries, but the trend is moving against it. The SEC’s Plain English Handbook calls words like hereunder “lawyerisms” that “give writing a legal smell, but carry little or no legal substance,” and the agency’s disclosure rules require prospectuses to avoid “legal jargon or highly technical business terms” and use “definite, concrete, everyday words” instead.1U.S. Securities and Exchange Commission. A Plain English Handbook The Plain Writing Act of 2010 pushed federal agencies in the same direction.2U.S. Department of Justice. Plain Writing
The practical alternative is simply writing what the word means. “Payments due hereunder” becomes “payments due under this agreement.” “Obligations hereunder” becomes “obligations under this agreement.” The replacement is a few words longer but instantly clear to a non-lawyer reviewing the document before signing. Some drafters worry that dropping the formal term introduces ambiguity, but the archaic word is actually the one that generates disputes about scope. “Under this agreement” leaves little room for creative reinterpretation.
Hereunder is not going away soon. Older form contracts, boilerplate libraries, and entire industries still rely on it. If you encounter it in a contract you are asked to sign, treat it as meaning “under this agreement” and focus on whether the obligations it is attached to are ones you can live with. The word itself is rarely the problem; the substance it points to is what matters.