A charity reserves policy is a written statement that explains how much money your charity holds in reserve, why you hold that amount, and what you would do if you needed to use those reserves. It is one of the key financial governance documents that funders, the Charity Commission, and independent examiners expect to see.
The Charity Commission's guidance CC19 "Charity reserves: building resilience" sets out what a good reserves policy should include. It does not prescribe a specific number — the right level of reserves depends on your charity's income profile, commitments, and risk appetite. What matters is that your trustees have thought carefully about the question and can explain their reasoning clearly in your Trustees' Annual Report.
Free reserves are specifically the unrestricted funds your charity holds that are not committed to a project, designated by trustees for a particular purpose, or tied up in fixed assets like equipment or property. This is the amount you could access quickly in an emergency — and it is the figure funders focus on when assessing your financial resilience.