Poland’s government is not undertaking reforms needed to repair public finances, possibly endangering its efforts to join the euro, according to Stanislaw Gomulka, who resigned this week as deputy minister of finance.

“I felt I could not discharge my duties as someone who was supposed to initiate a programme of significant reforms in public finances,” Mr Gomulka told the FT, adding that he felt he was not getting political backing from Donald Tusk, the prime minister.