Aug 18, 2026
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Long-term borrowing costs in major economies have reached new highs, driven by inflation fears, government debt levels, and uncertainty surrounding massive investments in Artificial Intelligence.

ManyPress

ManyPress

ManyPress Editorial

2 min readSource:BBC Business
Global Borrowing Costs Rise Amid Oil Price Spikes and AI Investment Concerns

Key facts

  • The 30-year US borrowing rate reached 5.33% on Tuesday, its highest level since June 2007.
  • Brent crude oil prices surpassed $90 per barrel amid ongoing regional conflicts.
  • Higher bond yields can lead to increased costs for consumer mortgages, car loans, and credit cards.
  • Analysts at Capital Economics identified the US, UK, France, Italy, and Japan as having the most problematic fiscal outlooks.
  • Corporate borrowing has reached a record pace in recent weeks, largely to fund the development of AI infrastructure.

Long-term borrowing costs in major economies have surged to fresh highs, with the interest rate on 30-year US debt reaching 5.33% and UK long-term debt hitting 5.85% on Tuesday. This rise is primarily attributed to investor concerns over inflation, government spending, and the significant capital being directed toward Artificial Intelligence development. The trend, which has also impacted markets in Germany, Japan, France, and Italy, reflects broader anxiety regarding geopolitical instability and fiscal policy.

By the numbers

5.33%
US 30-year borrowing interest rate
5.85%
UK long-term debt interest rate
$90
Price per barrel of Brent crude

Oil Prices and Inflationary Pressures

Rising oil prices are a primary driver of the current surge in bond yields. On Tuesday, Brent crude prices exceeded $90 per barrel, fueled by tensions in the Middle East and the ongoing closure of the Strait of Hormuz. Analysts note that elevated fuel costs increase expenses for businesses, which are often passed on to consumers, thereby heightening inflation risks and prompting expectations that central banks may raise interest rates.

Impact of AI and Fiscal Policy

Investors are demanding higher returns on government and corporate debt due to uncertainty regarding the long-term profitability of massive investments in AI and data centers. Additionally, bond markets have reacted to the fiscal policies of various governments. In the UK, Prime Minister Andy Burnham has sought to reassure markets by committing to existing fiscal rules following concerns that his administration might increase public borrowing.

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This article was independently rewritten by ManyPress editorial AI from reporting originally published by BBC Business.

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