Households are facing a "truly dismal" increase in their disposable income following the Budget, the Institute for Fiscal Studies (IFS) think tank says.
The IFS points to analysis of the government's tax and spending plans by the Office for Budget Responsibility (OBR), which forecast that the average disposable income would grow by "only" 0.5% annually over the next five years.
Disposable income measures the amount of money people have left to spend after taxes have been paid.
IFS director Helen Miller said the growth was disappointing "especially when compared to the more than 2% per year we achieved across every parliament from the mid-1980s to mid-2000s".
