Frequently Asked Questions Tax What do I have to do when I go self-employed? What National Insurance do I Pay when I go self-employed? What are the important dates in the Self Assessment Tax Year? What do I have to do if I take on an employee? What is the Construction Industry Scheme? What is IR35? How does the Working Families Tax Credit work? What are the tax consequences of trading over the internet? What is Self Assessment and how does it work? How are company cars taxed? VAT When do I have to Register? Answers to other frequently asked VAT questions Limited Companies What has to go on our company letterhead? Where can I get FREE basic information on other Limited Companies? What are the responsibilities of being a company director? General How does the National Minimum wage work? What are Limited Liability Partnerships all about? Do I have to register under the Data Protection Act? How do the Working Time Regulations effect me?