BREAKING: Welfare spending will be ***£16billion higher*** by 2029-30 in the wake of the Budget, the OBR has forecast * The uprating of benefits in line with inflation will cost £3.1billion * Higher unemployment will increase UC spending by £1.8billion * More people moving onto disability benefits will cost £1.4billion * The u-turns on PIP and winter fuel payments and decision to scrap the two-child benefit limit will cost £9bn