UK 30-year gilt yield hits 5.89%, highest
UK long-term government borrowing costs have surged to a 28-year high, complicating the new government's upcoming Budget.
Long-term UK government borrowing costs have reached their highest level in 28 years, applying significant pressure to Prime Minister Andy Burnham's administration ahead of its first Budget next month. The yield on the 30-year gilt rose to 5.89% on Tuesday, a level not seen since 1998.
This surge in borrowing costs will reduce the government's fiscal headroom, limiting Chancellor John Healey's capacity for consumer-friendly spending to tackle the cost-of-living crisis. Burnham told the House of Commons that fiscal responsibility would be his government's bedrock as it addresses the economy, which he called the biggest issues facing the country.
Global debt pressures
Similar increases in borrowing costs have been recorded in the US, Japan, and Europe in recent days. Karen Ward, JP Morgan's chief market strategist for Europe, told the BBC that governments worldwide are seeking to borrow more to fund increased spending. She noted they now compete with major technology companies raising money to invest in artificial intelligence, which pushes up interest rates.
US borrowing costs also hit a fresh high on Tuesday, driven by renewed Middle East strikes pushing up oil prices and inflation fears. Global markets reacted to suggestions the US central bank could raise rates.
Fiscal rules and political challenge
The Chancellor has committed to sticking to fiscal rules established by his predecessor, Rachel Reeves, which restrict borrowing to provide market clarity. Higher forecast interest payments increase the likelihood of spending cuts or tax rises to meet these rules. Furthermore, elevated government rates can translate to higher costs for business and household borrowing, dampening economic activity.
Conservative leader Kemi Badenoch criticized the government's approach in Parliament. She said Burnham's diagnosis and theory of growth were completely wrong, arguing he thinks that if Government spends more money, we will all get richer.
Despite tight finances, Burnham pledged to deliver more substantial change to ease living costs, acknowledging that Britain is not where any of us would wish it to be.
Key gilt yields
Alongside the 30-year gilt, the benchmark 10-year gilt yield also rose sharply.
| Gilt Maturity | Yield | Notes |
|---|---|---|
| 30-year | 5.89% | Highest since 1998 |
| 10-year | 5.22% | Highest since June 2008 |
Gilt yields move inversely to bond prices, meaning prices fall when yields rise. Kathleen Brooks, research director at XTB, described the situation as red lights flashing for the government. She noted that record government debt and tax levels create an uncomfortable environment for the new administration, as every yield increase raises debt interest costs.
Chancellor Healey, attending a G20 meeting in the USA, told fellow finance ministers that the UK had the fastest growth in the G7 so far in 2026, improving productivity, and was cutting borrowing at the fastest rate among major economies. Burnham's government is expected to prioritize further cost-of-living measures in the Budget scheduled for 28 October. Ward urged the Prime Minister and Chancellor to clearly explain how any new spending on defence and living costs will be funded and how lenders will be repaid.
