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Markets

UK Borrowing Costs Rise, Tax Hike Pressure Grows

Published 5 September 2026

Prime Minister Andy Burnham's government is facing increased pressure to raise taxes or cut spending in the upcoming Budget due to a significant rise in the UK's borrowing costs. Surging yields on government bonds, known as gilts, have eroded the Chancellor's fiscal headroom, potentially requiring measures to bridge a gap of £10 billion to £15 billion. The yield on 10-year gilts has reached its highest level since June 2008, while the yield on 30-year gilts is at its highest since 1998. These increases make it more expensive for the government to service its national debt, which stands at nearly £3 trillion. Experts warn that if borrowing costs remain elevated, the Chancellor, John Healey, may have to implement substantial fiscal tightening in the Budget scheduled for October 28. The rise in borrowing costs is attributed to a confluence of global factors, including renewed hostilities between the US and Iran, which have pushed up energy prices and fueled inflation expectations. This has led central banks worldwide to consider higher interest rates.

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