http://unifiedpayroll.co.uk/ - Unified Payroll are an HMRC umbrella company based in the UK working as the intermediary between freelancers and the end client, dealing with the administration which is usually payroll and tax based work. Every time you get paid the money will be collected by Unified Payroll, they will deduct Income Tax (PAYE), National Insurance and their administration fee, then the remainder of your income is passed onto you.