From Charity Commission:
‘My Charity Commission Account’ is a new way for trustees and charity contacts to access the Charity Commission’s online services. It can also be used by other people you have authorised, such as your accountant or lawyer.
Our online services include updating charity details, submitting annual returns, and making changes to a governing document, a charity’s name or financial year end. Over time, through ‘My Charity Commission Account’, we will also provide you with tailored support and information to help you to run your charity well.
Each account is individual – you have your own email sign-in and password. You will also be able to view all your charities through one account if you use the same email address for each of your charities, which we recommend.