An authentication code is a 6 digit alphanumeric code issued to each company by Companies House. The code enables the submission of data for an individual company and is the electronic equivalent of a company officer's signature.
The code is required to submit information about your company electronically to Companies House. You will need this code when making any company changes through your MadeSimple account or using Companies House online filing services.
The code will enable our system to synchronise with Companies House in order to allow changes to be made through your account to end up with Companies House and also the other way around.