We are underlining our commitment not to increase the rate of class 1 NICs by introducing this Bill. The hon. Lady asks why we are legislating rather than making a pledge. She could apply exactly the same argument to the legislative commitment to spend 0.7% of gross national income on overseas aid, yet that was actively supported by the Labour party. If she feels that this Bill is a meaningless gimmick, why does she not oppose it today?
Let me finish thanking my hon. Friends. My hon. Friend the Member for Northampton North (Michael Ellis) described this as a short but important Bill, and may I say that he delivered a short but important speech? My hon. Friend the Member for Tamworth (Christopher Pincher) highlighted the need for greater certainty in the tax system and welcomed the Bill, as did my hon. Friend the Member for North Dorset (Simon Hoare), who also highlighted the importance of stability in the tax system. My hon. Friend the Member for Blackpool North and Cleveleys (Paul Maynard) supported that argument and suggested that the Bill would provide greater confidence to businesses in his constituency.
The hon. Member for Dundee East (Stewart Hosie) raised a number of questions and asked about the potential for integration between income tax and national insurance contributions, and the work being undertaken by the Office of Tax Simplification. As he said, it was announced in the summer Budget that the OTS will undertake a review of the closer alignment of income tax and national insurance. The overall aim of the project is to build on earlier work undertaken in that area, and to understand the steps needed to achieve closer alignment of the taxes, as well as the costs, benefits and impact of each step. The terms of reference were published on 21 July, and the OTS will publish a final report ahead of the 2016 Budget.
On the one hand we heard from the hon. Member for Worsley and Eccles South that this measure is a gimmick and unnecessary. On the other hand, I was also struck by the contribution from the hon. Member for Bishop Auckland (Helen Goodman), who made the argument that we—I do not know whether she was talking about the Government or the Labour party—should consider abolishing the upper earnings limit. In other words, the 12% rate of national insurance contributions should apply also to higher rate taxpayers. That policy was supported by the hon. Member for Luton North (Kelvin Hopkins).
Let us be clear about what is being proposed. It would mean an increase in the tax rate for higher rate taxpayers of 10%, from a combined rate of 42% to a combined rate of 52%. That is not the policy of the Opposition, as the hon. Member for Worsley and Eccles South made clear, but three days into the leadership of the right hon. Member for Islington North (Jeremy Corbyn) the Labour Front Bench appears to be being attacked from the left, something that I had not anticipated. I do not know whether the hon. Members for Bishop Auckland and for Luton North are making a late bid for inclusion in the shadow Cabinet, although I was surprised that neither was there in the first place. I am sure that the shadow Chancellor, who is in his place, will have listened carefully to that proposal, which would clobber a large chunk of middle earners.
The hon. Member for Worsley and Eccles South upbraided hon. Members for quoting remarks made by the right hon. Member for Islington North before he became leader of the party and said that she would not respond. That is a novel approach, although I have some sympathy with her and really cannot blame her.