At a time when borrowing levels are at a record high, a survey of 2,000 people found only a third would inform a new partner of their debt situation within three months of beginning a new relationship, while 4% said they wouldn’t share details of their debt until they were getting married.

The research by Equifax found 51% of people had never helped a family member with their debt. Those who had were more than twice as likely to have given them money rather than advice to help with their financial difficulties.

Richard Haymes, head of financial difficulties at TDX Group, an Equifax company, said: “Our research shows that when it comes to talking about debt it remains a taboo subject, even with our friends and family. In an environment where people are borrowing at record levels, it’s concerning that they feel they can’t be open about their situation.

“People may be reluctant to divulge details of their finances to family and friends, but by carrying the burden of debt problems alone, they risk further escalating their situation.”

The study also found over a third of couples who are either married or in a civil partnership do not have a shared bank account.