A charity business plan is one of those documents almost every leader has produced at some point and almost none of them have found genuinely useful afterwards. That is not because business planning is unimportant. It is because the documents that get produced are usually written for the wrong reader, structured around the wrong questions, and treated as artefacts rather than working tools. This guide is about how to do it differently.
We have written, reviewed and rebuilt business plans for organisations from £100k start-ups to £20m delivery bodies. The plans that endure share a small number of characteristics, and they are not the ones consultants usually emphasise. They are short. They are honest. They make a clear strategic argument before they describe anything operational. They contain numbers that someone can defend in a board meeting. And they are revisited often enough that the team remembers what is in them.
Part one: who is the plan for?
The single most useful question to ask before you write a word of a business plan is: who is the primary reader? Not who will receive a copy, but who has to read this and act on it. The answer changes the document materially. A plan written primarily for trustees emphasises strategic decisions and risk. A plan written for funders emphasises track record, beneficiary outcomes and financial sustainability. A plan written for the team emphasises priorities, sequence and accountability. The same content can serve all three audiences, but the structure and emphasis must be deliberately chosen.
Our default recommendation for most charities is: write the plan for trustees, and produce derivative documents — funder summaries, team briefings — from it. This is because trustees are the only audience that can change the organisation. Funders evaluate. Staff implement. Trustees decide. If the plan does not equip trustees, it is not really a business plan, it is marketing material.
Part two: the structure that works
There is no single correct structure for a charity business plan. What matters is internal coherence — each section earning its place and connecting to the next. The structure we use most often, refined over many engagements, is below. It is deliberately shorter than the templates you will find in textbooks. Most plans are too long because the writer was unsure what mattered.
Part three: theory of change as the spine
If your plan has a spine, it is your theory of change. A theory of change is simply a clear statement of the cause-and-effect logic that connects what you do to the change you claim. Every section of the business plan refers back to it — activities support outcomes, financials fund activities, indicators measure outcomes. A plan without a theory of change tends to fragment into a list of things the organisation does, with no internal argument about why those things together produce the impact claimed.
A good theory of change is a single page. It can be a diagram, a narrative paragraph or a structured table. What it must do is allow a reader to trace a clear path from the inputs (resources you invest) through the activities (what you actually do) to the outputs (what is produced) to the outcomes (what changes for beneficiaries) and ultimately to the longer-term impact (the contribution to the broader problem). Each link in the chain must be defensible.
Where theories of change go wrong
Part four: financial planning that survives contact with reality
The financial section is where most charity business plans either succeed or fail. Funders, trustees, and your bank manager all turn to the numbers first. They need to be clear, defensible and grounded in stated assumptions. They do not need to be precise — three-year forecasts never are — but they must be honest.
Three documents form the financial core of a charity business plan: a three-year income and expenditure forecast, a cashflow projection at monthly granularity for at least year one, and a balance sheet projection showing how reserves move over time. Each is built from the same underlying assumptions, which should be stated explicitly somewhere in the plan or in a clearly referenced appendix.
| Area | Weak version | Strong version |
|---|---|---|
| Grant income growth | 10% per year | Specific funders, named, with realistic probabilities and tiered scenarios |
| Earned income | Doubles by year three | Driven by stated capacity, price and demand assumptions |
| Staff costs | Salaries plus 25% | Modelled per role, with pension, NI, recruitment costs and known increments |
| Core costs | 10% of total spend | Built bottom-up from rent, IT, insurance, governance, finance, leadership time |
| Reserves trajectory | Maintained at three months | Modelled with explicit policy and explanation of how reserves will be rebuilt if drawn down |
Part five: strategic choices, not strategic wish-lists
Strategy is choice. A plan with twelve priorities has no priorities. A plan with three priorities has made decisions about what not to do, and those decisions are what give the plan strategic weight. The hardest part of business planning is usually not deciding what to do; it is deciding what to stop, what to defer, and what to deliberately keep small.
We push every organisation we work with to articulate not only what they will pursue but what they will say no to. This is uncomfortable. It is also where the plan becomes useful. Trustees can govern around clear choices. Staff can deliver against clear priorities. Funders can support clear directions. A wish-list neither governs, delivers nor attracts confident funding.
Part six: governance, team and operating model
The operating sections of the plan often get less attention than they deserve because they feel less strategic. They are where the strategy actually happens. A plan that does not describe how the organisation will be structured, governed and resourced to deliver the strategy is not yet complete.
Part seven: making the plan a working tool
A business plan that lives on a shared drive is half-built. The remaining half is the rhythms that bring it into operational life. Without them, even the best plan becomes a snapshot of intent that ages quickly. With them, the plan becomes a reference point used in real decisions over years.
Part eight: when to commission help
External support on business planning is most valuable when the organisation is at an inflection point — a merger, a major scale-up, a significant funding shift, a leadership transition, or a strategy that requires capabilities the current team does not yet have. It is least valuable when commissioned as a writing service for a document that already exists in everyone's heads. The cost of a good external review is small relative to the cost of pursuing a strategy that is not robust.
How often should a business plan be rewritten?
A meaningful rebuild every three years, with light annual updates in between. Rewriting more often signals that the plan was not strategic enough to begin with; rewriting less often signals that the plan has stopped being used.
What is the difference between a business plan and a strategic plan?
In practice they overlap heavily. A strategic plan tends to focus on the why and what; a business plan adds the how and how much. For most UK charities under £10m turnover, one document serves both purposes.
Can a small charity have a useful business plan?
Yes. The structure compresses but does not disappear. A small organisation can produce a credible 12-page plan that does everything a larger plan does, in less detail.
Do funders really read the plan?
The serious ones, yes — especially for larger or multi-year applications. They may not read the whole document, but they will scan for coherence between the narrative and the financials. Inconsistencies are noticed.
How do we keep the plan from being out of date by the time it is approved?
Treat the plan as version 1.0, not a final word. Version it. Update the assumptions section annually. The strategic narrative usually holds longer than the financial detail.