Care services minister Phil Hope, shadow minister for health and social care Stephen O’Brien and Liberal Democrat spokesperson Paul Burstow are to meet to discuss government policy on carers.
The three are to speak at a debate organised by the Princess Royal Trust for Carers.
The Princess Royal, who is founder of the charity, will open the Building Society to Care roundtable discussion by talking about her experiences with the charity.
The debate follows recent news coverage revealing that PCTs have spent less than a quarter of a £50m fund for carers on improving services for carers.
The charity said it was hoping to quiz the politicians on the issue during the event, as well as posing questions it has collected from dozens of carers from across the UK.
Princess Royal Trust chief executive Carole Cochrane said: “We are pleased that the three main parties have decided to put aside their differences to engage in a serious and measured debate about the future of social care policy, and what impact this will have on carers.
“We hope that this discussion will highlight that all concerned are dedicated to improving the lives of one in 10 of their voters.”