Testing times for low-paid workers
4 September 2013 Last updated at 07:27 BST
The number of UK workers earning less than the so-called living wage has risen to 4.8 million, research from the Resolution Foundation has shown.
The figure, equivalent to 20% of employees, is up from 3.4 million in 2009, the think tank said.
BBC Breakfast's Tim Muffett has been to meet some workers struggling to make ends meet.