Although I'm no tax expert, even I know that the answer to this question is (unfortunately) Yes!
However, you should get advice from your Accountant or Tax Adviser to ensure that you only pay what you have to and nothing more. In all developed countries throughout the world, Government benefit from significantly from receiving taxes that shouldn't really be paid. Make sure that you don't add to this.
As most professional freelance contractors will either trade under the auspices of a Limited Company (either directly or through an Umbrella Company, we will focus our attention of the taxation of limited companies.
The taxation that a limited company has to pay falls into the following categories;
1. Corporation Tax
2. Employer's National Insurance Contributions (NICs)