The true extent of Britain’s debt

How much is Britain’s true national debt? Gordon Brown says 37% of GDP, the ONS says 43% of GDP – but this is just government debt. The reason Britain is in so much trouble is that our corporate and household debts are huge. It is the combination that makes us such a credit liability – but no one has ever put together a combination.

Until now.

Michael Saunders from CitiGroup has calculated ‘external debt’ – ie, what Britain owes the rest of the world. It is not 40% but 400% of GDP, the highest in the G7 by some margin. The next down, France, is 176%. America, flagellating itself for blowing such a debt bubble, is just 100%. Japan is about half America. The below graph shows ‘external debt’ – both in mid-2008, and five years ago.

G7 Countries – external gross debt/GDP ratios, 2003Q2 – 2008 Q2