Despite climbing figures in those in employment "workers are still not getting pay rises" says the general secretary of the Trade Union Council, Frances O'Grady.
He said: "Pay packets have nosedived since the Government prematurely declared an end to Britain's cost-of-living crisis last month.
"It's great that more people are joining the workforce but hugely worrying that workers are still not getting the decent pay rises they need to get by."
The comments come as the Office for National Statistics released its latest figures on UK employment numbers.
More top news
A cloudy start to the day with top temperatures of 18C (64F).
Immigration levels may need to rise, David Davis has said as he refused to commit to a cap on the number of EU citizens coming to the UK.
MSPs are expected to back Nicola Sturgeon's call for a second independence referendum in a vote at Holyrood on Tuesday.