UK Borrowing Costs Hit Multi-Decade Highs: What Could This Mean for Businesses?
- George Dunn
- 12 minutes ago
- 4 min read
UK borrowing costs have risen sharply, with movements in the bond and swap markets creating renewed uncertainty around the future cost of finance.
On Wednesday, the yield on the UK's benchmark 10-year government bond – commonly known as a gilt – reached 5.294%, its highest level since August 2007. Longer-term borrowing costs have also climbed significantly, with 30-year gilt yields recently reaching around 5.9%, close to levels not seen since the late 1990s.
For businesses, property investors and individuals considering finance, these movements are worth paying attention to.
Although the Bank of England's Bank Rate remains unchanged at 3.75%, the rates available across parts of the lending market can move independently, and sometimes considerably faster. So, what is happening, and what could it mean for businesses looking to borrow?
Why have UK borrowing costs risen?
The recent movement forms part of a wider global bond-market sell-off, with investors increasingly concerned about inflation, energy prices and government borrowing.
Renewed geopolitical tensions and higher oil prices have added to inflationary concerns, contributing to investors demanding higher returns for holding government debt.
At the same time, attention is turning towards the UK's Autumn Budget on 28 October, where the government is expected to set out its approach to taxation, spending and the public finances.
The combination has put upward pressure on gilt yields and other market interest rates.
What are gilt yields – and why should businesses care?
Gilts are bonds issued by the UK Government to raise money.
The yield essentially represents the return investors demand for lending money to the government. When those yields rise, it is an indication that borrowing in financial markets is becoming more expensive.
But the significance goes beyond government debt.
Movements in gilts can be closely associated with movements in the swap market, which is particularly important for lenders when determining the cost of fixed-rate borrowing.
The Bank of England publishes both government bond yield curves and Sterling Overnight Index Average (SONIA) swap curves as measures of market interest rates.
As those market rates increase, lenders may have to reconsider the pricing available on new fixed-rate lending.
Bank Rate hasn't changed – so why could finance become more expensive?
This is perhaps the most important distinction for businesses.
The Bank of England currently has Bank Rate at 3.75%, following its July Monetary Policy Committee meeting. The next decision is scheduled for 17 September.
However, lenders don't necessarily need to wait for Bank Rate to change before adjusting their own pricing.
Fixed-rate lending can be influenced by the cost at which lenders themselves obtain or hedge funding, including movements in swap rates.
There is already evidence of this in the wider lending market. The Financial Times reported this week that two- and five-year overnight swap rates had risen sharply, putting pressure on fixed mortgage rates, with brokers expecting lenders to respond through repricing.
Similar considerations can be relevant across areas of commercial finance.
For businesses, that means waiting for the next Bank of England announcement isn't necessarily the same as waiting for borrowing costs to move.
What could this mean for businesses considering finance?
For businesses already considering borrowing, the current market reinforces the importance of understanding what funding is available now, rather than assuming today's pricing will necessarily remain available later in the year.
This could be particularly relevant for businesses considering:
Asset Finance for vehicles, machinery or equipment
Commercial Mortgages and property investment
Business Loans and working capital
Refinancing existing facilities
Funding acquisitions or expansion
Larger capital expenditure planned for Q4 or early 2027
It does not mean every lender will immediately increase rates, nor does it mean borrowing costs are guaranteed to continue rising.
Financial markets can move in both directions.
However, where a business already has an approval or indicative quote in place, it could be worth speaking with its broker or lender to understand how long that pricing is valid and whether changing market conditions could affect it.
"Timing could become increasingly important"
I'd then introduce George here. I think his quote should sound measured and experienced rather than like we're trying to frighten people into applying:
George Dunn, Executive Director at Approved Finance Group, commented: "Businesses shouldn't panic because of movements in the bond market, but they should be aware of what is happening
One of the biggest misconceptions is that borrowing costs only change when the Bank of England changes Bank Rate. In reality, lenders operate in a much broader financial market, and movements in swap rates and funding costs can affect the pricing available to borrowers before an official Bank Rate decision is made.
For any business already considering an investment, acquisition, refinance or major purchase later this year, now is a sensible time to review the funding options available. It doesn't necessarily mean proceeding immediately, but understanding what can be secured today puts the business in a much stronger position to make an informed decision."
Why access to the wider lending market matters
Periods of changing interest rates also highlight the importance of comparing lenders rather than assuming that one movement in the market will affect every funding option equally.
Different lenders have different funding models, credit appetites, products and approaches to pricing.
Approved Finance Group has access to a panel of more than 125 lenders across Business Finance, Property Finance and Motor Finance, allowing our team to explore a broad range of funding structures based on the individual requirements of each client.
As market conditions evolve, this breadth can become particularly valuable when businesses need to balance the overall cost of borrowing against factors such as term, deposit, monthly repayments, security and speed.
Considering funding later this year?
The direction of borrowing costs over the coming months cannot be predicted with certainty.
What businesses can control is how prepared they are.
If your business has an existing finance approval, has recently received a quote or is considering borrowing later in 2026, now could be a sensible time to review the options available rather than waiting for market conditions to dictate your next move.
The Approved Finance Group team can review your requirements and compare funding options across our panel of 125+ lenders.
Speak to our team today to discuss your funding requirements.
