Liz Kendall said:
"Care workers do an incredibly important job, looking after our loved ones when they are at their most vulnerable. Yet thousands are not even paid the minimum wage, let alone a living wage.
"The news that half of all providers inspected by HMRC have failed to pay the minimum wage is shocking. Over a million pounds is now owed to care workers – yet neither HMRC nor the Government will tell us which companies are responsible or how many people have been affected.
"It is totally unacceptable that companies are failing to meet their legal duties. The Government must immediately name the companies concerned, HMRC must take action in each case where it finds non-compliance, and dedicated care workers must get what they are owed."