Community Accounting Plus (CA Plus) is based in Nottingham, but has very useful free resources on its website with free templates to help you with Accounts, Bookkeeping, Budgeting, Business and Financial Planning, and Payroll
Find the CA Plus resources here: https://www.caplus.org.uk/resources
Other general guides to particular finance issues and responsibilities:
CFG’s Small Charities Programme provides free downloadable resources and webinar, aimed at supporting small charities manage their finances more effectively, enabling them to deliver better services to current and future beneficiaries.
Resources, practical tools and templates cover different finance related topics such as:
The Charity Commission, in partnership with Companies House, has produced accounts templates for charitable companies with an income of under £500,000. The templates aim to help companies submit the right information and help them to save time.