Scotland Bill

I wish to ask the Exchequer Secretary a couple of questions about this technical clause. Can he confirm how deductions for pension contributions and gift aid will be made? Will the taxpayer be able to choose the order of deductions against various sources of income? The Scottish Parliament will need to know the size of the tax base before setting the rate. Will the Government undertake to ensure that they give the Scottish Parliament, as well as the Scottish Government, early notice of changes in the level of income tax personal allowance and thresholds? I asked that question in relation to clause 26, but it is important to have the earliest possible consultation and information given not only to the Scottish Government but to the Scottish Parliament.