WhatsApp and E-Mail Correspondence: When Does It Create a Legally Binding Contract?
Introduction
In the fast moving maritime industry, time-sensitive quick decisions are frequently required. Parties often rely on e-mail or instant messaging applications such as WhatsApp to communicate operational instructions and commercial terms, bypassing formal correspondence procedures. This practice raises an important legal question: can such correspondence give rise to a binding contract?
Arbitral tribunals and courts generally assess the binding nature of these communications by focusing on the parties’ intent, the content of the messages, and the overall context of the exchange. Where essential contractual elements—offer, acceptance, consideration, and intention to create legal relations—are present, digital correspondence may constitute a legally binding agreement.
English Case Law
English court practice has consistently addressed the enforceability of informal communications:
- Golden Ocean Group Ltd v Salgaocar Mining (2012): e-mail correspondence was held sufficient to constitute a valid charterparty.
- RTS Flexible Systems v Müller (2010): a binding contract was found to exist where the parties had commenced performance, despite no signed agreement.
- Blue v Ashley (2017): informal conversation in a social setting was found to lack contractual intent.
- Palmali Shipping SA v Litasco SA (2025): WhatsApp negotiations were held not to amount to a binding settlement, as the tone indicated ongoing discussions.
- Jaevee Homes Ltd v Fincham (2023): the Supreme Court confirmed that WhatsApp messages may constitute a binding contract where the terms are clear and intent is established.
These cases underline that the decisive factor is not the medium of communication but the clarity of agreement and seriousness of intent.
Determining Binding Effect
When assessing whether digital correspondence is binding, courts and tribunals examine:
- The wording used (“we agree,” “confirmed,” “final acceptance” versus “subject to contract,” “to be confirmed”),
- The conduct of the parties following the exchange,
- The authority of the person making the communication, particularly in broker-mediated negotiations.
Under English law, correspondence beyond the authority of an agent or broker does not bind the principal.
Practical Implications
For maritime stakeholders, the key lesson is that informal communication may have unintended legal consequences. To mitigate risk:
- Use limiting phrases such as “subject to contract” or “without prejudice” during negotiations,
- Confirm agreements through a formal recap or written protocol once terms are finalized,
- Ensure that internal authority levels are clearly communicated to brokers and employees.
Conclusion
English law does not restrict the medium of contract formation. What matters is the presence of contractual elements and the parties’ demonstrable intent. While WhatsApp and e-mail are efficient tools in a fast-paced sector such as shipping, care should be taken to avoid inadvertently creating binding legal obligations through informal correspondence.


