Mortgage rates do not only move when the Bank of England changes the Base Rate. That is exactly what buyers have been reminded of this month.
On 19 March 2026, the Bank of England held the Base Rate at 3.75%, but it also highlighted that conflict in the Middle East had pushed up global energy prices and increased uncertainty around the inflation outlook.
In the mortgage market, that kind of volatility can feed through quickly into lender pricing, even without an immediate base rate rise.
Many buyers assume mortgage rates only change when the Bank of England moves the Base Rate. In reality, lenders also watch swap rates closely when pricing fixed-rate mortgages.
Swap rates are a market benchmark used in fixed-rate mortgage pricing, and when they rise, lenders’ costs can rise too. That is why fixed mortgage rates can move up even when the Base Rate stays exactly where it is.
That has been visible in the market recently. Industry reporting shows lenders have been repricing mortgages and withdrawing products as markets reacted to Middle East volatility, and further changes have continued this week across major lenders, including NatWest, TSB, Coventry Building Society and Santander.
When rates move higher, it is not just the monthly payment that can change; affordability can also change.
Some lenders have recently adjusted affordability rates alongside product repricing, which means a buyer who looked comfortable a few weeks ago may not be able to borrow the same amount today.
That is why buyers should not rely on old figures, outdated agreements in principle, or assumptions based on what the market looked like earlier in the month. In a fast-moving market, buyers need up-to-date advice based on current lender criteria, not yesterday’s numbers.
This is where Edward Mellor becomes especially valuable. Edward Mellor’s mortgage advisors compare rates from 70+ lenders, with access to 2,000+ products, and guide clients through the whole process rather than simply showing a headline rate.
That matters because in a volatile market, the right mortgage is not just about the cheapest number today. It is about finding a lender whose affordability model, criteria and product structure suit the client’s circumstances.
There is also a wider advantage to working with Edward Mellor. Our business offers integrated financial services, conveyancing*, surveying* and property support* under one roof.
In practical terms, this joined-up structure can make a real difference when a transaction is time-sensitive.
Instead of the buyer, adviser, estate agent and other parties all working separately, there is far more opportunity to keep communication tight, spot delays early, and keep momentum towards completion.
In uncertain conditions, that kind of support helps buyers make better-informed decisions more quickly.
Some buyers will say they already have their mortgage arranged. The important question is: when did they arrange it?
If it was before the recent market changes, there is a chance their borrowing position now looks different.
Going directly to one bank only gives a buyer access to that lender’s criteria and product range, which can limit their options if borrowing conditions have changed.
Edward Mellor, by contrast, compares a much broader panel and is set up to guide clients through the process based on their individual circumstances.
Whether starting the search for a new mortgage or responding to changing market conditions, speaking to a mortgage adviser early helps buyers understand what they can realistically borrow and which products actually fit their situation.
For buyers who have already secured a mortgage offer, there is some reassurance. But a mortgage offer does not last forever. A mortgage rate is only secured until the mortgage offer expiry date, which is typically between 3-6 months.
That is another reason why using Edward Mellor can be so valuable. Our advisers handle the process from liaising with lenders to paperwork, and our wider business model is built around meeting clients’ property and financial needs in one place.
In a market where timing can affect not just the rate available but whether a buyer still passes affordability, that extra coordination matters.
Market changes are not just a buyer issue.
If a buyer’s mortgage no longer stacks up, or their offer expires before completion, the sale can fall through and disrupt the rest of the chain.
An expired offer can risk the whole sale, which is why sellers also benefit when buyers are being actively supported through the mortgage process rather than left to manage it alone.
Sellers should speak to their estate agent to ensure that their sale is progressing smoothly.
For many people, yes. The key point is that buyers still have options. Lenders continue to offer a wide range of products, including high loan-to-value mortgages, flexible criteria and enhanced affordability options for some clients.
Rates are also still below the highs seen during more extreme periods in recent years.
By working with Edward Mellor, buyers can gain access to a much broader range of mortgage options to secure the right product for their circumstances.
World events can change the mortgage market very quickly, and recent weeks have shown that clearly. Even when the Base Rate is unchanged, lender pricing, product availability and affordability can all move.
In that environment, the value of advice is not just finding a rate. It is having a knowledgeable adviser who can compare a broad range of lenders, guide you through the process, and work closely with the wider property team to help keep your purchase on track.
Whether you’re looking for a mortgage, a re-mortgage or a buy-to-let rate, we’re here to help you get the right deal.
We’ve been pairing clients with their perfect mortgage for over 40 years, comparing the latest rates of 70+ lenders to find the right one for you.
Our team of mortgage experts are here to guide you through the entire process. From liaising with the lenders to the paperwork, we’ll handle it.
*These services are not part of the Openwork offering and is offered in our own right. Openwork Limited accept no responsibility for this aspect of our
business. Conveyancing and Surveying are not regulated by the Financial Conduct Authority.
YOUR PROPERTY MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE. MOST BUY TO LET MORTGAGES ARE NOT REGULATED BY THE FINANCIAL CONDUCT AUTHORITY.
Edward Mellor Limited is an appointed representative of The Openwork Partnership, a trading style of Openwork Limited, which is authorised and regulated by the Financial Conduct Authority.
Approved by The Openwork Partnership on 13/04/2026.
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