First Deputy Chairman Gennady Melikyan said the figure was lower than last year, but that banks' foreign debt burden continued to grow.
According to the Central Bank, Russian credit institutions, including state-owned banks, owed $163.6 billion to non-residents as of January 1, 2008 compared with $101.2 billion as of January 1, 2007.
Russia's net capital inflow in May is expected to equal the April figure of $20 billion, Melikyan said.
The official said Russia registered net capital outflow in the first quarter, totaling $11 billion in January, $9 billion in February and $3-4 billion in March.
In 2007, net capital inflow was $82 billion and in 2006, $41 billion.
According to the International Monetary Fund, net capital inflow into Russia could hit $45 billion in 2008 and $70 billion in 2009.
