Britain’s Budget today is a rates event before it is a political one. Chancellor John Healey delivers his first Budget, alongside the Office for Budget Responsibility’s updated outlook and the Debt Management Office’s revised borrowing plan, to a gilt market that has already marked its conditions: headroom against the fiscal rules in double digits, credibly assembled, and no surprise increase in long dated supply.
The starting position leaves little slack. Borrowing between April and September reached 97.8 billion pounds against a forecast of 91.8 billion, and higher yields and the energy shock have eaten into the Chancellor’s buffer since the spring, with economists estimating what remains at anywhere between 8.5 billion and 16 billion pounds. A poll of all 15 primary dealers expects 2026/27 gilt issuance to rise by 3.4 billion pounds to 249.6 billion, with roughly 42.7 percent in short dated gilts. The DMO has kept long dated supply in check, and analysts warn that any surprise increase at the long end would hit the 30 year gilt immediately.
Revenue is expected to come from narrow bases, because income tax, National Insurance and VAT rises have been ruled out. Around 5 billion pounds of tax rises on online retailers, gambling, bank profits and the tax gap is expected, and reports before the statement suggested the bank corporation tax surcharge could rise from 3 percent to 8 percent, a measure Broadstone estimated could raise more than 2 billion pounds a year, while warning that lenders could respond by tightening credit. Bloomberg reported on Wednesday that the bank tax hike was set to be less severe than lenders had feared; the confirmed figure comes with the statement.
Sterling went into the day softer, at 1.3284 against the dollar, down 0.46 percent on the day and 0.67 percent on the week in this site’s tables. The interaction the market is pricing is with Threadneedle Street: inflation jumped to 3.5 percent in September, Bank Rate stands at 3.75 percent, and markets are braced for a possible hike on November 5. If the OBR judges that the cost of living package pushes inflation higher, the Bank of England is more likely to tighten, raising the government’s own debt costs at the same moment.