Therefore to empower public spending sustainable growth above the size of GDP and to stabilise tax revenue with no challenge of cut or increase or reduction say 10%personal income tax unchanged for a full decade then government should have a proper Taxation Investment budget or taxation investment GDP or wealth GDP growth rate.Even as productivity increases and more employment generate better salaries leading to rising taxes,in well budgeted taxation investment surplus,there is no need to increase taxes,leaving more disposable income in the hands of the people.With this domestic reserves surplus,tax cut or tax increase does not change still at say 10%.There would be more disposable income and sustainable growth in public consumption and stabilised impact in GDP growth.The public surplus from domestic reserves,create multiple layers of domestic reserves to make the plight of budgetary deficits a thingof history in publicfinance.Other layers such as hedge bondreserves,prosperity reserves and welfare reserves