§ Mr. Cousins
To ask the Chancellor of the Exchequer if he will estimate the tax losses due to tax-free non-domicile status in each of the last three full financial years, distinguishing between the general categories of taxation. 
§ Dawn Primarolo
Individuals who are not domiciled here are liable on UK income and gains as they arise and on overseas income and gains which are remitted or brought to this country.
Any estimate of comparative tax yield would depend on what it was assumed would apply in place of the current rules.