Define: Deed of Adherence
A Deed of Adherence is a legal document by which a new party formally agrees to be bound by the terms of an existing agreement, such as a shareholders' agreement or joint venture agreement, without renegotiating the original contract. It is commonly executed in a form set out in a schedule to the underlying agreement, ensuring the new party assumes the same rights and obligations as existing parties.
Legal accuracy standard set & glossary spot-checked by Imad Mohammed Nazar , Skadden-trained M&A lawyer, Legal Engineer at GenieAI
What Deed of Adherence Means in a Contract
A Deed of Adherence is the mechanism by which a person or entity that was not an original signatory to a contract becomes legally bound by its terms. Rather than drafting a brand new agreement or amending the existing one, the parties rely on a short, standalone deed through which the incoming party accepts the obligations, restrictions, and benefits already set out in the master agreement. This is especially common in multi-party arrangements such as shareholders' agreements, joint ventures, and partnership structures where membership changes over time.
Because a deed carries formal legal weight under the law governing the contract, it typically requires execution as a deed rather than a simple contract, meaning it must satisfy specific formalities such as witnessing and clear intent to be bound. The underlying agreement usually anticipates this future need by including a template of the deed as an attached schedule, so that when a new party joins, everyone can simply complete and sign that prescribed form.
How Deed of Adherence Is Defined or Measured
There is no universal statutory definition of a Deed of Adherence; instead, its meaning and effect are shaped entirely by the contract that references it. The operative agreement will usually state that any new shareholder, partner, or investor must execute a deed.
Relevant Circumstances
- When new shareholders or parties accede to an existing agreement
- If a standard-form deed in a schedule binds them to all original terms
- Where the company can compel transferees to execute a deed of adherence