# Letter of Assurance > Letter of Assurance means a documented commitment, including attachments, stating a party's intent on ownership, enforcement, or licensing of specific **Term:** Letter of Assurance **Last updated:** 2026-07-29 ## Definition ## What a Letter of Assurance means in a contract A Letter of Assurance is a documented commitment in which one party sets out its intentions on a defined subject, most often the ownership, enforcement, or licensing of particular claims or rights. Any attachments referenced in the letter form part of it. The purpose is to give the receiving party something concrete to rely on when deciding whether to proceed, invest, or refrain from action, without necessarily entering a full agreement. ### How it is defined and where it sits The defining feature of a Letter of Assurance is that it records a party's stated position in writing so the other side can point to it later. Depending on wording, it may be a binding undertaking or a good-faith statement of intent. That distinction is what makes the exact language so important. A letter that says a party "intends" to grant a licence reads very differently from one that says a party "agrees" to do so. Because the effect turns on the words used, the letter should make its intended legal weight explicit under the law governing the contract. ### Where it appears Letters of Assurance surface in negotiations that precede a formal deal and in ongoing relationships where one side needs comfort on a specific point. They share ground with several related instruments: - A [letter of intent](https://www.genieai.co/en-us/template-type/letter-of-intent), which frames the outline of a proposed transaction; - A [commitment agreement](https://www.genieai.co/en-us/template-type/commitment-agreement), where a party binds itself to a defined course of action; - A [confirmation letter](https://www.genieai.co/en-us/template-type/confirmation-letter), which records an agreed fact or position for the record. They are especially common around intellectual property, where a rights holder may assure another party that it will not enforce a particular claim, or that it will license on stated terms. ### Why the exact wording matters The central risk with a Letter of Assurance is uncertainty over whether it binds. If the drafting is vague, the recipient may act in reliance on an assurance that the author never intended to be enforceable, while the author may find itself held to a commitment it thought was merely indicative. Careful drafting should state whether the letter is binding, identify the specific claims or rights it covers, define any conditions attached to the assurance, and set out how long it remains effective. It should also address whether the assurance survives a change in ownership of the underlying rights. ### Drafting considerations Treat a Letter of Assurance with the same discipline as a contract clause. Name the parties precisely, describe the subject matter narrowly enough that the scope is unmistakable, and avoid open-ended language that could imply broader promises than intended. If attachments carry substantive terms, reference them clearly so they are unambiguously part of the letter. Where the assurance is meant to be binding, say so and provide for signature; where it is only a statement of present intention, say that too, so neither party is surprised later. Because these letters often precede a fuller deal, it helps to explain how the assurance interacts with any later agreement, borrowing the discipline you would apply when you [draft a letter of intent](https://www.genieai.co/blog/how-to-draft-a-letter-of-intent). The clearer the letter is about its own force, the less room there is for a costly dispute over what was actually promised. ## Context ### Relevant circumstances - When one party wants to ensure the authenticity of claimed ownership and licensing. - When there's a need to enforce specified claims. ### Relevant sectors - Tech Sector - Intellectual Property - Real Estate ## Relevant contract types - [Letter of Intent](https://www.genieai.co/en-us/template-type/letter-of-intent) - [Commitment Agreement](https://www.genieai.co/en-us/template-type/commitment-agreement) - [Confirmation Letter](https://www.genieai.co/en-us/template-type/confirmation-letter) --- This is the Markdown representation of [https://www.genieai.co/en-us/define/letter-of-assurance](https://www.genieai.co/en-us/define/letter-of-assurance), provided for AI agents and crawlers. The HTML page is canonical. See [/llms.txt](https://www.genieai.co/llms.txt) for the full content map.