UK borrowing costs hit 16-year high: Which sectors face insolvency surge as rates bite?

The UK's borrowing costs have climbed to their highest level since the 2008 financial crisis, with the government's 10-year borrowing rate rising above 5%^[1]. This sharp increase in rates, driven by concerns about inflation and public spending, signals potential trouble ahead for UK businesses already grappling with elevated costs and reduced consumer demand.

According to the BBC^[1], the spike comes as UK borrowing rose to £14.3bn in February - the second highest level for that month since records began, trailing only February 2021. The confluence of higher borrowing costs and economic uncertainty raises questions about which sectors will bear the brunt of any resulting insolvency wave.

Current insolvency landscape shows clear warning signs

The latest data from the CompanyPulse company register^[2] reveals the scale of business distress across the UK. As of March 2026, there are 108,045 companies in liquidation, with an additional 3,945 in administration, 547 in voluntary arrangements, and 204 in receivership. These figures represent a significant portion of the UK's 5,645,806 registered companies.

The concentration of failures in certain sectors provides early indicators of where the pressure is building. Real estate and construction-related industries dominate the company register, with "Other letting and operating of own or leased real estate" accounting for 447,788 companies^[2]. The property sector's prominence in the UK economy makes it particularly vulnerable to interest rate shocks.

Energy crisis compounds borrowing pressures

The timing of the borrowing cost spike coincides with a renewed energy crisis. Chris O'Shea, chief executive of British Gas owner Centrica, warned that energy bill rises were "inescapable" if oil prices remain high due to the conflict in the Middle East^[3]. Since the US-Israel war with Iran began, crude oil has surged as high as $106 a barrel, with Cornwall Insight forecasting that typical annual household energy bills could rise by £332 from July.

This energy price shock creates a double burden for businesses: higher operational costs from energy bills combined with increased financing costs from elevated interest rates. Economists including Ruth Gregory at Capital Economics have noted that the government "doesn't have the room for manoeuvrability" it had in 2022^[1], making large-scale business support unlikely.

Service sectors show early stress indicators

Several service-oriented industries are already showing signs of distress that could accelerate under higher borrowing costs. The recent collapse of National Car Parks (NCP) into administration, putting 682 jobs at risk^[4], illustrates how businesses with high fixed costs and changing demand patterns are particularly vulnerable.

NCP's failure was attributed to multiple factors including reduced commuter demand from home working, rising operational costs, and long-term inflexible lease agreements tied to loss-making sites^[4]. These same pressures affect many service sector businesses, particularly those dependent on footfall in city centres.

The CompanyPulse register^[2] shows significant concentrations of companies in vulnerable service sectors: 85,823 in take-away food shops, 76,056 in hairdressing and beauty treatment, and 75,477 in freight transport by road. These businesses typically operate on thin margins and rely heavily on consumer discretionary spending.

Construction and property sectors face perfect storm

The construction and property development sectors appear particularly exposed to the current environment. With 117,895 companies registered in "Development of building projects" and 101,728 in "Construction of domestic buildings"^[2], these industries face multiple headwinds.

Higher borrowing costs directly impact property developers' ability to finance projects, while simultaneously reducing demand from buyers facing increased mortgage rates. The sector's reliance on debt financing makes it especially sensitive to rate changes, with many projects becoming unviable as financing costs rise.

Danni Hewson of AJ Bell noted that the Treasury is "stuck between a rock and hard place" managing the current economic challenges^[1]. This constraint on government support means property and construction firms cannot rely on the kind of assistance provided during previous crises.

Warning signs from repeat offenders highlight systemic risks

The case of Richard Beal, banned as a company director for the second time after running up £120,000 in tax debts^[5], illustrates another dimension of the insolvency risk. Beal's management consultancy Larter Beal Limited went into liquidation owing more than £70,000 in corporation tax and £50,000 in VAT, following a similar pattern to his previous company failure with Bretteal Limited in 2015.

The Insolvency Service^[5] described this as "abusive phoenixism" - where directors use companies repeatedly to evade debts. With 278,064 companies registered in management consultancy activities^[2], the sector's low barriers to entry make it particularly susceptible to such practices during economic stress.

As borrowing costs remain elevated and economic pressures intensify, the data suggests UK businesses face their most challenging environment since the global financial crisis. While the full impact of the current rate environment may take months to materialise in insolvency statistics, the combination of sector vulnerabilities, reduced government support capacity, and ongoing energy price pressures points to a significant increase in business failures ahead.

The concentration of risk in property, construction, and consumer-facing services suggests these sectors will likely see the earliest and most severe impacts. For the 5.6 million companies on the UK register, the coming months will test their resilience against a backdrop of the highest borrowing costs in nearly two decades.