Income Tax 86. Earl of Dalkeith asked the Chancellor of the Exchequer what he estimates to be the net gain or loss to the Treasury from reducing the standard rate of Income Tax by 2s. in the £ in Scotland, leaving it unchanged in Wales and raising it in England by one penny in the £. Mr. Taverne There would be a net loss of about £35 million for the full year, assuming that there were proportionate changes in the reduced rates. Mr. Sheldon asked the Chancellor of of Exchequer if he will publish a simple guide 10 assist in the completion of Income Tax returns. Mr. Taverne A guide in the form of explanatory notes is issued with Income Tax returns to help tax-payers to complete them.