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IMLA’s Guide to Understanding the Mortgage Market

IMLA s new guide helps mortgage advisers understand swap rates and their impact on fixed mortgage pricing amid rising rates.

By David Sampson
14 June 2026
2 min read
UK mortgage rates article image for IMLA s Guide to Understanding the Mortgage Market

TL;DR

  • Swap rates have surged from around 3.6% to over 4.5% in early 2026.
  • this increase has caused average two-year fixed mortgage rates to rise from 3.97% to 5.14%, impacting borrowers seeking stability in their mortgage payments.

Written by David Sampson for Mortgage118. Last updated 14 June 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The Intermediary Mortgage Lenders Association (IMLA) has released a new guide aimed at helping mortgage advisers grasp the complexities of swap rates and their influence on fixed-rate mortgage pricing. This development comes in light of significant fluctuations in swap rates earlier this year, which have directly affected the mortgage market, particularly for borrowers considering fixed-rate options.

What are Swap Rates and Why Do They Matter?

Swap rates are important in determining the pricing of fixed-rate mortgages. Unlike tracker mortgage rates, which are directly influenced by the Bank Rate, fixed-rate pricing is closely tied to swap rates. This relationship means that changes in swap rates can lead to significant shifts in the costs associated with fixed-rate mortgages.

How Have Recent Events Affected Swap Rates?

The recent geopolitical tensions involving the US, Israel, and Iran have led to increased uncertainty in financial markets, prompting a rise in swap rates. From early March to early May 2026, two-year swap rates rose dramatically, which in turn pushed average two-year fixed mortgage rates up by more than 1.1 percentage points. This trend is essential for borrowers to understand, as it directly affects their potential mortgage costs.

What This Means for the Mortgage Market

For borrowers, particularly those looking for fixed-rate mortgages, the rise in rates signifies higher monthly payments and overall borrowing costs. Investors in the property market should also take note, as these changes could influence demand for housing and rental prices. Understanding swap rates is now more critical than ever for navigating the current mortgage market.

Frequently Asked Questions

What should borrowers do in response to rising mortgage rates?

Borrowers should assess their current mortgage options and consider locking in fixed rates before they rise further. Consulting with a mortgage adviser can provide clarity on the best course of action.

How can I stay updated on mortgage rate changes?

Regularly checking current mortgage rates and consulting with mortgage professionals can help you stay informed about fluctuations in the mortgage market.

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.