Unsecured lending to consumers rose by 1.144 billion pounds ($1.45 billion) in net terms last month after a 1.513 billion-pound increase in April.
A Reuters poll of economists had pointed to net consumer credit lending of 1.5 billion pounds in May.
Thursday's data pointed to mixed signals from the housing market, with mortgage rates for new borrowers soaring past 6% this month in many cases.
The value of net mortgage lending contracted in May by 92 million pounds, following a 1.466 billion-pound fall in April.
It marked the first back-to-back falls in net mortgage lending since records began in 1986.
Persons:
BoE, Ashley Webb, BoE Governor Andrew Bailey, Paul Heywood, Andy Bruce, William Schomberg, Emelia
Organizations:
Bank of England, Savings and Investment, Consumer, Capital Economics, Reuters, Equifax, Thomson