Offset Mortgages Are Dying Out – Here’s Why

Offset mortgages once offered an elegant way to make savings work harder against your mortgage balance. But in 2025, they’ve become a rare find in the UK market, and the reasons behind their decline are becoming clearer.

The Quick Overview

Offset mortgages now account for less than 1% of new UK mortgage lending, down from around 1.1% in mid-2024 to just 0.6% by July 2025. Several long-standing providers have withdrawn offset deals for new customers, including Family Building Society, Clydesdale/Virgin Money, and Scottish Widows Bank. Only a handful still offer them — such as Barclays, Coventry Building Society, Yorkshire Building Society, Handelsbanken, and Coutts.

Share of new UK mortgages that are offsets (source: The Times, 2024–2025).

Why Are Offsets Fading?

1. They suit only a niche audience
Offsets make the most sense for borrowers who keep significant cash savings consistently. For most people, that’s not the case. Many prefer to leave their money in ISAs or high-interest savings accounts, and offsets often come with slightly higher interest rates than comparable non-offset products.

2. Higher savings rates changed the maths
With easy-access and fixed-term accounts offering strong returns through 2024 and 2025, savers could often earn more in interest than they saved by offsetting.

3. Complexity and cost for lenders
Offsets require linked accounts, daily balance calculations, and extra administration. When margins are tight, lenders tend to simplify their ranges, favouring straightforward fixed or tracker deals over niche options.

4. Regulation and affordability rules
Tighter post-MMR affordability assessments mean lenders prefer simple repayment products that are easier to model, monitor, and package for funding. That reduces appetite for more flexible, bespoke options.

5. Shrinking awareness and demand
As fewer lenders offer offsets, they feature less in broker recommendations and consumer research. With reduced marketing and familiarity, demand naturally drops further.

Are Offsets Gone for Good?

Not entirely. They’re now more of a specialist tool than a mainstream mortgage. For certain borrowers, they can still offer a unique advantage — particularly those with variable income or significant cash reserves.

Offset mortgages still work well for:

• Self-employed borrowers or those with irregular income who need flexibility

• Higher-rate taxpayers who can benefit from the tax-free interest saving of offsetting

• Professionals or high-net-worth clients with large savings or family-linked deposits

• Customers with specialist needs, such as multi-account or multi-borrower setups offered by private banks and select building societies

The tax point is simple. Savings interest above your Personal Savings Allowance is taxed (the allowance is £1,000 for basic-rate taxpayers, £500 for higher-rate taxpayers and nothing for additional-rate taxpayers). Money in an offset account earns no interest, so there is nothing to tax: the benefit comes as lower mortgage interest instead. The same logic suits self-employed borrowers who build up cash for their tax bill, as that money can cut mortgage interest until the bill is due.

We are not tax advisers and this is not tax advice. This is a general summary of how savings interest is taxed, based on the rules published at the time of writing, and we make no warranty about the tax you will pay. Speak to a qualified tax adviser or accountant about your own circumstances.

How Does an Offset Mortgage Work?

An offset mortgage links your savings to your mortgage. You don't earn interest on the savings. Instead, the lender takes your savings balance away from your mortgage balance and only charges interest on the difference. Your savings stay yours, in a separate account you can usually pay into and withdraw from.

A worked example

Say you have a £200,000 mortgage and £20,000 in savings. With an offset, you are charged interest on £180,000, not £200,000.

Illustrative only. The 5% rate is an example, not a product rate, and the figures are simplified: they ignore the balance falling as you repay and assume the savings stay at £20,000 all year.

In that example the offset saves about £1,000 of interest in a year. To match that in a savings account, a higher-rate taxpayer who has already used their allowance would need to earn around 8.3% before tax. Remember the offset rate is often a little higher, though: a rate 0.20% higher on £200,000 costs about £400 a year, which cuts the net benefit to about £600.

Lower payments or a shorter term

Many lenders let you use the saving in one of two ways:

• Reduce your monthly payments, because less interest is being charged.
• Keep payments the same and shorten your term, so more of each payment clears the debt and you could be mortgage-free sooner.

The catches

• Higher rates: offset deals are usually priced above comparable standard fixes and trackers, so small balances may not cover the difference.
• Fewer lenders: the choice is limited, which also makes it harder to switch to another offset deal later.
• Savings must stay put: every pound you withdraw goes back to being charged interest, so the benefit depends on keeping a steady balance.

Family offset and linked savings

Some lenders let relatives, often parents or grandparents, link their savings to your mortgage. They keep ownership of the money and earn no interest on it, while you pay less interest. These arrangements can come with conditions, such as the savings being locked in for a set period, and not every lender offers them, so check the terms carefully.

If you already have a mortgage and are weighing up an offset against a standard deal, our remortgage advice compares both across the market. For where standard rates stand now, see current UK mortgage rates.

Which Lenders Still Offer Them?

• Barclays – continues to market its Offset Mortgage with options to reduce payments or term.

• Coventry Building Society, Yorkshire Building Society, Handelsbanken, Coutts – still active in niche and private-bank markets.

• Family Building Society – stopped new offset applications in March 2025, maintaining products only for existing borrowers.

• Scottish Widows Bank – closed to new lending but continues to service existing offset customers.

• Clydesdale/Virgin Money – withdrew their offset range following product simplification reviews.

Product availability is always subject to change, so borrowers should check the latest options before making decisions.

How to Tell If an Offset Works for You

Ask yourself three questions:

1. How much cash will stay in the linked account most of the time?
   If it’s less than £25,000–£50,000, a cheaper standard deal and a good savings account might perform better.

2. What’s the rate difference?
   If the offset rate is around 0.10%–0.30% higher than a comparable fix, your average cash balance needs to make up that difference to break even.

3. Do you value flexibility more than maximising returns?
   The ability to make overpayments, underpayments, or access funds easily may outweigh the pure financial comparison for some borrowers.

The Bottom Line

Offset mortgages aren’t extinct, but they’ve moved firmly into the specialist category. For the right borrower — typically someone with stable cash balances and a desire for flexibility — they can still deliver meaningful benefits. For everyone else, a sharp fixed or tracker rate, combined with today’s strong savings products, usually makes more sense.

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Disclaimer:

This article is for general guidance purposes only and does not constitute legal, financial, or professional advice. Mortgage products and their terms can vary, and it is important to seek advice from a qualified, regulated professional who can assess your individual circumstances. Please ensure you consider your unique needs before making any financial decisions.

While every effort is made to ensure that the information provided on this blog is accurate and up-to-date, we do not guarantee its completeness or accuracy. The mortgage market can change rapidly, and the information on this blog may become outdated. We recommend verifying any information before acting on it and seeking tailored advice.

THINK CAREFULLY BEFORE SECURING OTHER DEBTS AGAINST YOUR HOME. YOUR HOME OR PROPERTY MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON A MORTGAGE OR ANY OTHER DEBT SECURED ON IT.