Britain's Treasury chief Osborne faces a difficult period as the economy shows flat growth for 2012 and 2013. The targets he set for eliminating the structural deficit or budget gap by April 2017 may need to be shifted to 2018. The target for net debt to decline as a percentage of GDP by 2015 may also be unachievable if growth is flat in the coming year. An accounting change in how profit from the Bank of England's bond buying program are shown is designed to reduce Treasury's borrowing and bring Britain closer to this target. Osborne says Britain's actions for austerity measures, spending cuts and increasing taxes have helped keep interest rates low to pay off debt.