The United Kingdom’s fiscal year now turns on a single afternoon. Chancellor John Healey, delivering his first Budget in Prime Minister Andy Burnham’s government on Wednesday, does so with long-term borrowing costs at levels a generation of officials never had to budget against. The 30-year gilt yield pierced 6 percent on October 1, reached 6.036 percent on October 7 and 6.047 percent on October 8, its highest since 1998, while the 10-year gilt touched 5.527 percent, its highest since 2007. Yields have since eased, the 30-year to about 5.83 percent by October 21, helped by the Bank of England’s pause in gilt sales and by International Monetary Fund praise for the government’s borrowing plans, but the level, not the direction, is the constraint.
The arithmetic is visible in the headroom. The buffer against the fiscal rules stood at 23.6 billion pounds in March. A Reuters poll of economists now puts it at about 10 to 12 billion pounds, with other estimates ranging from 8.5 to 16 billion, as higher yields feed directly into the debt interest bill on a public debt stock that passed 3 trillion pounds this month. Former Bank of England chief economist Andy Haldane warned that the government is “skating on pretty thin ice in fiscal terms” and that nothing would be worse than the ice cracking. Governor Andrew Bailey has told the chancellor, in a speech this month, that fiscal policy must be credible and be seen as such by financial markets.
Healey has framed fiscal discipline as the centre of the Budget, and the market test is specific. Aberdeen’s Luke Hickmore, quoted by Reuters, put it as adherence bringing room for yields to fall and any surprise bringing swift consequences. The rates calendar compounds the timing: the FOMC decision lands at 18:00 London time the same evening, the ECB decides the next day, and the Bank of England meets on November 5, at which a hike to 4.00 percent was about 95 percent priced on October 19 according to a broker note reported by Admiral Markets. A Budget that misses its own rules would arrive in the middle of that sequence with no quiet window to recover in.
Bond investors are not asking for austerity theatre. They are asking whether the consolidation path, which the IMF has described as worth nearly 4 percent of GDP, survives contact with the spending pressures the Budget also has to answer. The gilt curve will give the verdict before the opposition does.