In a report accompanying the central government spending last year, the Audit Court said the failed bank cost the Portuguese coffers €420 million, but the figures are still not final.
The figures from the end of last year included the nationalisation of the BPN and the running costs of the three vehicles Parvalorem, Parups and Parparticipadas, that were set up to oversee the sale of assets.
The nationalisation was the first in Portugal since the revolution (when they were for political ideals) and has led to a series of court cases.