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Mortgage Market Update: Rates Rise Amid Swap Rate Surge

The UK mortgage market faces rate hikes as swap rates soar, affecting borrowers and landlords alike.

By David Sampson
25 July 2026
3 min read
UK mortgage rates article image for Mortgage Market Update Rates Rise Amid Swap Rate Surge

TL;DR

  • The two-year swap rate surged to 4.258%, prompting lenders like Nationwide and HSBC to raise mortgage rates.
  • borrowers should prepare for higher costs.

Written by David Sampson for Mortgage118. Last updated 25 July 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The UK mortgage market is experiencing significant pricing hikes as swap rates soar, influenced by geopolitical tensions and rising oil prices. This shift is impacting borrowers across various mortgage products, leading to increased costs for both new and existing customers.

What Are Swap Rates and Why Do They Matter in the Mortgage Market?

Swap rates are important indicators in the mortgage market, reflecting the cost of borrowing between banks. A rise in swap rates typically leads to higher mortgage rates for consumers, as lenders adjust their pricing to maintain profitability. The recent spike in swap rates, driven by the escalating conflict between the US and Iran and the subsequent rise in oil prices to $100 per barrel, has resulted in a wave of mortgage rate hikes.

Which Lenders Have Increased Their Rates?

Several major lenders have announced rate increases in response to the rising swap rates. Nationwide has raised rates across its mortgage offerings for existing borrowers, including a rise from 4.37% to 4.6% for its two-year fixed additional borrowing product at 60% loan to value (LTV) with a £999 fee. Similarly, HSBC has implemented rate hikes for the second time this week, effective from 27 July. Accord has also adjusted its pricing, with fixed residential new business rates up to 90% LTV increasing by 0.2% as of 24 July. TSB and Virgin Money have followed suit, raising their rates across various products.

What This Means for Borrowers and Landlords in the Mortgage Market

The rise in mortgage rates means that existing borrowers will face increased monthly payments if they decide to switch products or remortgage. For landlords, the increase in buy-to-let (BTL) rates, such as the 0.1% rise for new business rates, could impact profitability, especially for those operating on narrow margins. Borrowers should carefully assess their options and consider locking in fixed rates sooner rather than later to mitigate the impact of these increases.

What Should Investors Watch Next in the Mortgage Market?

Investors and borrowers should keep a close eye on ongoing geopolitical developments, as these can further influence swap rates and, consequently, mortgage pricing. Additionally, monitoring the Bank of England’s base rate decisions will be important, as any changes could lead to further adjustments in mortgage rates. Staying informed about lenders’ rate changes and exploring mortgage rate comparison tools will be essential for making informed financial decisions.

Frequently Asked Questions

How do rising swap rates affect mortgage rates?

Rising swap rates typically lead to higher mortgage rates as lenders adjust their pricing to reflect increased borrowing costs. This means borrowers may face higher monthly payments.

What should I do if my mortgage rate increases?

If your mortgage rate increases, consider exploring your options for remortgaging or switching to a fixed-rate product to lock in lower rates before further increases occur.

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.

Mortgage Market Update: Rates Rise Amid Swap Rate Surge | Mortgage118