If you are Labour Party member who joined before 12th January 2016 you should automatically have a vote. Please make sure the Labour Party has the correct contact details and address for you. You can do this at members.labour.org.uk or by calling 0345 092 2299 (better to do this online).
• If you are a member of an affiliated trade union, or another affiliated organisation (e.g. The Fabians, LGBT Labour) and joined before 12th January 2016 then you can register as an affiliated supporter at support.labour.org.uk (if you registered last year you won't need to do so again unless your details have changed).
• If neither of the above bullet points apply to you then, as things currently stand, if you want to vote you will have to register between Monday 18th July and Wednesday 20th July and pay £25 to be a registered supporter. You can register at support.labour.org.uk. If you registered last year for £3, that registration has expired and you will have to register again and pay £25.