Thinking big: How to use theory of change for systems change
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Systems change is helping a range of charities, funders and practitioners to deal with the root causes of social problems.
The approach requires us not only to understand why difficult social problems persist but also to challenge our own role tackling them—a formidable task.
But if all of us in the voluntary sector are to become effective agents of change, we need to get better at challenging ourselves.
We think that, applied well, theory of change can support charities and funders that want to take a systemic approach to their work.
This report identifies five common pitfalls that organisations fall into when using theory of change, and walks through five rules of thumb that will help organisations to use the approach to tackle complex problems.
Traditional approaches to theory of change can be difficult to apply to campaigning, this NPC guide sets out how to develop a theory of change for campaigning.
Let us know your thoughts on the report by dropping us a line at info@thinkNPC.org.
We offer theory of change training for charities and funders throughout the year. Find out more on the events page.
More on systems thinking
Resources
Systems Practice Toolkit
On 24 January 2024.
This toolkit will help you understand the nature of the problem you’re facing, design effective solutions, act and work systemically, and learn as you go.
Resources
Systems change: A guide to what it is and how to do it
On 23 June 2015.
This guide has been produced to plug a gap in the systems change literature—providing accessible material and recommendations for action.
Resources
Systems change for people experiencing multiple disadvantage
By Fulfilling Lives LSL Research and Learning Partnership: NPC, Groundswell, and CRESR .
On 2 March 2022.
What have we learned about the system and how it can change?
More on theory of change:
Blog
Evaluating with a systems lens
By Famin Ahmed, and Elliot Trevithick .
On 10 June 2026.
How to apply a systems-thinking approach to evaluation, focusing on learning, adaptation, and understanding wider system change rather than just measuring individual outcomes.
Blog
Theory of Change – how do you make it fun?
By Jessica Weir .
On 5 June 2026.
Theory of Change is most effective when treated as a creative, collaborative process – using good facilitation, engaging activities, and diverse perspectives to help teams better imagine, design, and achieve meaningful impact.
Blog
Confused about what systems change is?
By Famin Ahmed .
On 26 May 2026.
While many people in the UK impact economy use the term 'systems change', there’s still confusion around what this really means.