The Data Protection Act 1998 requires every data controller (eg organisation, sole trader) who is processing personal information to register with the ICO, unless they are exempt.
More than 400,000 organisations are currently registered.
A Welsh language registration form (pdf) is also available.
Not sure if you need to register?
Take our quick self-assessment to find out.
How much does it cost?
For most organisations it's £35 each year - find out how much to pay.
Change my registration
Need to amend or cancel your registration?
Got a question?
We might have the answer - read our FAQs.
I've just registered. What next?
See our practical advice, toolkits, checklists and more to help you meet your data protection obligations.