Record UK Borrowing
UK public sector borrowing hits second-highest May on record as debt interest soars to A 11.7bn
Key Points
The ONS said government debt interest payable jumped to £11.7bn—“the highest ever recorded in any May,” underscoring that the cost pressure is not just elevated but record-setting for the month.
UK public sector spending rose by £9.1bn year-on-year to £118.0bn, with the increase driven by higher debt-interest costs as well as public service delivery, investment, and benefit spending.
Public sector receipts increased by £3.7bn to £94.8bn, supported by higher tax receipts—yet they still failed to keep pace with the spending and debt-interest surge.
May’s £23.3bn borrowing was the second-highest for any May on record, behind the 2020 figure—highlighting how tight the fiscal position is relative to recent history.
Growth in National Insurance contributions slowed because the “annual boost from the April 2025 policy changes no longer” contributed, weakening a key stream of receipts even as other taxes rose.
UK government borrowing hit £23.3 billion in May 2026, the second-highest May figure ever recorded, ONS reported on June 19. The total beat market expectations of £18.8 billion and came in £5.6 billion above the Office for Budget Responsibility's forecast — leaving the government with almost no room to maneuver heading into the autumn.
Driving the overshoot was a record debt interest bill. The ONS said debt interest costs hit £11.7 billion — "the highest ever recorded in any May" — as inflation pushed up payments on the roughly one-quarter of UK debt that is index-linked to prices. Borrowing is now £46.3 billion for the first two months of the 2026-27 fiscal year, well above last year's pace and the OBR's own projections, MarketScreener reported.
Record Debt Interest Bill Blows Open the Deficit
Total government spending rose £9.1 billion year-on-year to £118.0 billion in May. Higher debt interest payments were the single biggest driver, but spending on public services, investment, and benefits all climbed too. Tax receipts grew £3.7 billion to £94.8 billion — but that was nowhere near enough to close the gap, according to Morningstar.
The £11.7 billion interest bill reflects how index-linked gilts work: when inflation rises, the government pays more. The Middle East conflict pushed energy prices higher through early spring. The ONS noted that oil-price declines "filter through with a significant lag," meaning the Treasury paid the premium throughout May even as prices eased later in the month.
National Insurance Boost Fades, Weakening Receipts Growth
A year ago, the government got a big one-time lift from National Insurance changes that took effect in April 2025. That boost has now faded. The ONS said the "annual boost from the April 2025 policy changes no longer" contributed to receipts, slowing growth in a key revenue stream just as spending pressures were mounting.
Public sector net debt climbed to roughly 95% of GDP. With borrowing running £5.6 billion above forecast, analysts say the Chancellor has "no remaining headroom" for the Autumn Budget, according to Alloa Advertiser. Gilt yields edged higher after the 7:00 AM release as investors priced in greater government borrowing.
Burnham's By-Election Win Sharpens Labour's Fiscal Debate
The figures landed at a sensitive moment. Andy Burnham won the Makerfield by-election on June 12, returning to Westminster and immediately sharpening internal Labour tensions. Burnham said "the country is crying out for a different economic model that prioritizes investment in our regions over the servicing of skyrocketing debt."
Chancellor Rachel Reeves pushed back, saying "the conflict in the Middle East has created headwinds for every major economy" but that Labour's "commitment to fiscal responsibility remains absolute." Prime Minister Keir Starmer urged the party to "stay the course." Yet with borrowing running this far above forecast, that course is getting harder to defend, Head Topics noted.
What Comes Next: Spending Cuts or a Fiscal Reset?
With two months of 2026-27 already producing £46.3 billion in borrowing, the OBR's full-year forecast looks increasingly out of reach. Economists warn the Treasury may need emergency spending cuts before year-end to hit its fiscal targets. The Bank of England's ability to cut interest rates is also constrained — high government borrowing can add to inflation, limiting the room for relief.
The May figure was the second-highest for any May on record, behind only the 2020 COVID-19 peak, Alloa Advertiser noted. That comparison underlines how unusual the current fiscal pressure is outside a pandemic. The next borrowing figures, due in July, will be closely watched to see whether June brings any correction — or more of the same.
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