Becoming a Communist is a serious commitment. Communist Party members are active in struggles for socialism in their trade unions, local communities, and campaigning for education, health, housing and rights at work. Communists help establish and sustain many solidarity campaigns, women’s, anti-racist, anti-fascist, environmental and peace movements.

You can discuss with your local CP branch how best to apply your ideas, talent and activism. The Communist Party does not accept dual membership with other political parties. As a CP member you have rights and responsibilities and you can access our Party Aims and Constitution and the CP handbook for activists, members and supporters once your membership is confirmed.


Apply to join the Communist Party by paying an initial online registration fee (£12). Online registration is necessary due to current restrictions as a result of the COVID-19 pandemic.

Once you have registered an online application you will be contacted by a representative of your local Party branch for a membership interview. New members are admitted to the Party only following acceptance by their local CP organisation. If your application to join the Communist Party is refused, you will be refunded your online registration fee, with £1 retained to cover administration costs.

Communist Party dues vary from £1 to £50 per month depending on members’ income.

To progress your application now, please complete the registration form on this page.


When you register your CP membership application you will receive a confirmation email and welcome message. You will then be contacted by a representative of your local CP organisation.

The Communist Party is a growing party with branches in all regions of England and across Scotland and Wales.

Your application is welcome and we will process it as soon as possible.

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    The Communist Party of Britain (CPB) collects and maintains personal information in order to carry out its function as a revolutionary party, provide membership information and comply with statutory obligations. All personal information that you provide to the CPB will be used to process and administer your membership and to provide you with relevant information. This includes contacting/supplying you with information by post, telephone, email and/or SMS in relation to your party membership, party related, or supported campaigns and events. All information (updated as appropriate), will be kept throughout your membership. By applying to join the CPB you agree to our processing your personal information in this way.