Corporation Tax Act 2010  The Corporation Tax Act 2010 (c.4) is an Act of the Parliament of the United Kingdom that received Royal Assent on 3 March 2010. It was first presented (first reading) in the House of Commons on 19 November 2009 and received its third reading on 4 February 2010. It was first read in the House of Lords on 4 February 2010 and received its second and third readings on 2 March 2010. Section 1 of the Act gives a summary of the contents of the 2010 Act, and the changes it made, primarily to the Income and Corporation Taxes Act 1988.