Work and savings should not be taxed, but encouraged to promote a healthy society. Income tax is costly to collect, wastes a lot of each individual's time and is more easily avoided by the rich than by the poor. The policies of recent governments seem to be taking us in this direction but no Party has said that this is their ultimate aim. National Insurance is just a hidden form of income tax. Income tax collectors could be re-employed to collect the Wealth tax. (Income tax was originally a “temporary measure” to pay for the Napoleonic War.)