Promissory estoppel in agricultural partnerships

Agricultural partnerships are often built on trust, informality and long-standing family arrangements. Decisions are frequently made quickly and informally, especially during a difficult season where cash flow pressure is significant. However, when a dispute arises, those informal agreements can become legally significant. In that space, promissory estoppel may be highly relevant.

The basic premise of promissory estoppel is that:

  • There is a clear promise by one partner that they will not enforce a legal right
  • The promise has been relied upon by the other partner(s)
  • It would be unfair to allow the partner making the promise to go back on it

Why is this particularly relevant in agriculture?

Farming businesses often operate informally and between family members. This means that partnership terms may be poorly documented (if at all), accounts may not tell the full story and family members may assume that a verbal assurance is enough. When relationships break down, however, those assumptions and relationships are tested very quickly.

In practice, the above principle may arise where one partner agrees to defer capital contributions, waive drawings, postpone repayment, or accept a different profit-sharing arrangement during difficult trading conditions. If the other partner then acts on that assurance, for example by investing in stock, machinery, or labour, a dispute may arise if the promise is later withdrawn.

A key point is that promissory estoppel is usually a defence rather than a standalone cause of action. The aim of the principle is to avoid unfairness and is used to resist someone else attempting to enforce their strict legal right. It is not a vehicle to sue for compensation.

For agricultural partnerships, it should be well understood that informal promises can have serious consequences. A statement made to keep the peace in a difficult season may later be examined in detail, becoming central to the dispute. Clear and accurate records and updated partnership agreements remain essential to reducing the risk of costly disputes, as well as the key to maintaining good family relations for the future.

Our specialist team can support you with compliance awareness so that you do not get caught out. Contact Natalie Dean today for help.