Charity Structure and Governing Document: Complete Guide

A charity's structure and governing document are the first decisions that shape everything after them. These decisions affect tax status, trustee liability, compliance complexity, and how easily the charity can operate and evolve. Yet many new charities rush through this choice or settle for a generic template that does not fit their actual needs.

This guide walks through the main structures available to UK charities, what a governing document needs to cover, and the trade-offs that matter most when you are just starting out.

Three legal structures for UK charities

The choice comes down to liability, complexity, and cost. Here are the three main routes.

1. Unincorporated association

This is the simplest structure: a group of people agreeing to work together for a charitable purpose, with a constitution as the rulebook.

• No separate legal entity: the charity and trustees are legally the same thing.
• Trustees are personally liable for any debts or legal claims against the charity.
• Costs almost nothing to set up; you just write and adopt a constitution.
• Simplest to run operationally; fewer regulatory requirements.
• Good for small groups, informal networks, or charities that might be short-lived.

2. Charitable incorporated organisation (CIO)

A modern structure introduced by the Charity Commission in 2012. The charity is a separate legal entity, with trustees personally protected from liability.

• The charity has its own legal personality: separate from trustees.
• Trustees have limited liability; they are not personally responsible for charity debts.
• Costs £60–£90 to register (once Companies House fees are included).
• Slightly more governance burden: annual return to Charity Commission, clearer meeting procedures.
• Easier to raise money from trusts and institutional funders who prefer incorporated status.
• Good for charities that plan to grow, employ staff, or operate for many years.

3. Company limited by guarantee

A standard company registered at Companies House that has charity status. More formal than a CIO but offers the same liability protection.

• A company structure, registered both at Companies House and Charity Commission.
• Trustees (directors) have limited liability.
• Costs £40–£100 to register as a company, plus filing requirements from both regulators.
• More complex governance: annual accounts filed at Companies House as well as Charity Commission.
• Good if the charity needs to do substantial trading, or if it was incorporated before CIOs existed.

Comparing the structures: a quick decision tree

Choose unincorporated if: you are a small volunteer group, you want zero set-up cost, and you are unlikely to employ people or hold substantial funds. Choose CIO if: you plan to grow, you want trustee protection from day one, and you can spend £60–£100. Choose company limited by guarantee only if: the charity was already set up as a company, or you need more complex governance than a CIO offers.

For most new charities in 2026, a CIO is the right choice. It is protected, modern, and costs less than a coffee per trustee.

What a governing document must cover

Whether you choose unincorporated, CIO, or company structure, the governing document must answer these questions:

1. What is the charity's purpose? (Clear, specific, unchangeable without Charity Commission approval.)
2. Who can be a trustee, and how many must there be?
3. How long does a trustee serve before re-election?
4. How often do trustees meet, and what decisions need a meeting vs email?
5. How are day-to-day decisions made between meetings?
6. What financial controls are in place? (Who can spend money, what needs approval?)
7. How are funds handled? Can the charity hold reserves? Invest money?
8. What happens if there is a conflict of interest? How is it managed?
9. Can the charity employ staff? On what terms?
10. How can the governing document itself be changed?
11. If the charity closes, what happens to any remaining funds?

Common mistakes to avoid in your governing document

Mistake 1: A purpose statement that is too vague

A purpose like "to help people in need" is too broad. The Charity Commission will ask you to narrow it. A better version: "to provide free advice and practical support to small charities in the North East on governance, finance, and compliance."

Mistake 2: No rules for financial decisions

Many small-charity governing documents skip money rules entirely. Then the first dispute over spending becomes a crisis. Include clear limits: who can approve what spending level, and what needs a full trustee meeting.

Mistake 3: No named roles

A governing document that does not name the chair, treasurer, or secretary makes it unclear who holds authority. Name the roles and their specific responsibilities.

Mistake 4: No exit clause for trustees

If trustees serve for life or cannot be removed, the charity is locked in. Include a term limit (usually 3 years, renewable) and a fair removal process.

The registration sequence

Once you have a governing document, registration with the Charity Commission is next. The sequence differs by structure.

For an unincorporated association

1. Write and adopt a constitution at a trustee meeting.
2. Register online with the Charity Commission (free, 10–15 minutes).
3. The Commission assigns a charity number.

For a CIO

1. Write the CIO governing document.
2. Apply to the Charity Commission online.
3. The Commission approves and registers you as a CIO.
4. Your CIO is now a registered charity with legal status.

For a company limited by guarantee

1. Form the company at Companies House.
2. Apply to the Charity Commission for charity status.
3. Both regulators must approve; you report to both.

Timeline and cost summary

• Unincorporated: 1–2 weeks, £0.
• CIO: 2–4 weeks from application to approval, £60–£100.
• Company limited by guarantee: 4–6 weeks, £40–£100 plus ongoing filing costs.

A 30-day setup checklist

1. Week 1: Decide on structure (CIO is the safest choice for most).
2. Week 2: Draft or adapt a governing document template.
3. Week 3: Hold a trustee meeting, agree and adopt the document.
4. Week 4: Complete registration with the Charity Commission.

A clear governing document and the right structure take a few weeks to get right, but they set the foundation for everything after. Spend the time at the start. The cost is minimal; the protection is real.

This guide is part of our Charity Startup hub, where you can explore every practical guide in this area.