ThisisMoney: Fifth of bankrupts are under 30 ONE in five bankrupts is now under the age of 30 as student debt and the consumer spending splurge starts to bite. The proportion of bankruptcies among the 18 to 29-age group has jumped from 7.9% in 2001 to 18.7% last year. The average age of a bankrupt has fallen from 43 to 41 in the last four years but female bankrupts tend to be younger than male bankrupts.