Resources for tax and legal advice Resources for tax and legal advice - The UK's tax authority. - The main functions of Companies House are to: incorporate and dissolve limited companies; examine and store company information delivered under the Companies Act and related legislation; and make this information available to the public. - How-to guides, feature articles, checklists, expert Q&As, FAQs, case studies, video content and blogs related to business law. - The Intellectual Property Office can help you get the right type of protection for your creation or invention.