LONDON, July 21 — Britain borrowed £16.0 billion in June, official figures showed on Tuesday — £7.9 billion less than in the same month last year, and on the face of it a marked improvement. Look at the running total, however, and a less comfortable picture emerges.
Borrowing for the financial year to June reached £57.6 billion. That is £3.7 billion below the equivalent period a year earlier, but £2.7 billion above the forecast set out by the Office for Budget Responsibility. Three months into the fiscal year, the public finances are already running ahead of plan — in the wrong direction.
Public sector net debt stood at an estimated £2,989.9 billion at the end of June, equivalent to 94.9% of GDP. Debt has not been this large relative to the size of the British economy since the early 1960s.
Why an improvement is still a problem
The apparent contradiction — borrowing falling year on year while overshooting the forecast — is straightforward once unpacked. The OBR’s projections are what the Treasury’s fiscal rules are measured against. Coming in below last year is not the test. Coming in below forecast is.
A £2.7 billion overshoot in a single quarter is not, by itself, a crisis. Monthly public finance data is volatile and subject to revision, and one quarter rarely determines an annual outturn. But it establishes an unhelpful starting position for a Treasury that has very little room to manoeuvre, and it lands at a moment when the cost side of the equation is deteriorating rather than improving.
The interest rate problem
Here the fiscal story collides with the monetary one. Britain’s debt-servicing costs are unusually sensitive to interest rates and inflation, partly because a significant share of gilts are index-linked — their payments rise directly with inflation.
That linkage matters enormously right now. The oil shock generated by the conflict between the United States and Iran has pushed Brent crude near $90 a barrel, and the Bank of England has already warned it expects UK inflation to rise from May’s 2.8% in the coming months as energy costs feed through. Higher inflation mechanically increases the government’s interest bill. Meanwhile the Bank held Bank Rate at 3.75% in June with two of nine committee members voting for an increase — a split we covered in our central bank briefing.
The uncomfortable arithmetic: every step the Bank takes to control inflation raises the cost of servicing a debt pile worth 94.9% of GDP, and every month inflation stays elevated does the same thing through the index-linked stock. The energy shock is squeezing the public finances from both ends simultaneously.
The narrowing set of choices
Governments facing this arithmetic have three options and no pleasant ones: raise taxes, cut spending, or borrow more and accept the higher interest cost. Britain’s tax burden is already near post-war highs, public services are under visible strain after years of restraint, and the bond market has demonstrated before how sharply it can react to a fiscal plan it finds unconvincing.
None of this makes a crisis imminent. Britain borrows in its own currency, has a long average debt maturity that cushions it against short-term rate moves, and remains a market with deep demand for its debt. The immediate risk is not solvency — it is the steady narrowing of options.
What to watch
Two things determine whether the overshoot becomes a trend. The first is energy: if the Gulf conflict eases and oil retreats from $90, the inflation impulse fades and the index-linked interest bill stabilises. The second is the Bank of England’s decision on July 30, and whether the two hawkish dissenters become a majority.
For households, the transmission is direct. Fiscal pressure of this kind eventually resolves into some combination of higher taxes, thinner public services, or both — and in the meantime, the same inflation driving the government’s interest costs is the inflation showing up in energy bills and at the pump.