Using an online survey with randomisation, we illustrate how identity-based utility can be harnessed to encourage pro-environmental behaviours. Results show that providing farmers with an opportunity to demonstrate their ‘green credentials’ increases their intention of maintaining environmental practices by an average of 19%, while the use of descriptive norms increases intent to participate in a biodiversity activity by an average of 8%. Interventions such as these represent a low-cost, yet powerful supplement to traditional policy tools. New approaches for engendering behavioural change are likely to be particularly important in a UK context as the UK transitions out of the EU.