Society of Authors

Consider joining the Society of Authors. They work to protect the rights and further the interests of authors in the United Kingdom.
The Society has over 9,000 members writing in all areas of the profession. Whatever your specialisation, you are eligible to join as soon as you have been offered a contract from a publisher, broadcaster or agent. Services include the confidential, individual vetting of contracts, and help with any professional queries. In addition, the Society organises a varied calendar of events, publishes a quarterly journal, The Author, maintains a database of members’ specialisations, and administers a wide range of grants and prizes such as the Authors’ Foundation, which is one of the few bodies making grants to help with works in progress for established writers.
And they have a free tax helpline!