London’s second homeowners face £16,446 CGT bill

London’s second homeowners face £16,446 capital gains tax bill, but prime London sellers escaping unscathed

The latest research from Enness Global has found that whilst the London property market remains subdued, the city’s second homeowners could still be hit with significant costs when exiting their investments, with the average seller now facing a capital gains tax (CGT) bill of up to £16,446 when selling up after a decade of ownership. However, declines in prime London property values mean that second homeowners in the capital’s most prestigious postcodes are able to escape unscathed from a CGT hit.

Enness Global analysed the gains seen on the average London property over the last decade, looking at the change in value since 2015, less the £3,000 capital gains tax allowance and other eligible cost deductions such as stamp duty, legal fees, and estate agent fees. The firm then calculated the total tax payable at both 18% and 24% to reflect the current rates applied to basic and higher-rate taxpayers.

Average London second homeowner facing £16k in CGT

The research shows that across London, the average property investment would have cost £462,097 ten years ago, requiring a stamp duty payment of £13,105 and legal fees of £2,399. A decade later, the same property has increased in value to £561,587, a gain of £99,490. With an average agent fee of £9,547 and legal fees of £2,915 at the point of sale, this puts total eligible deductions at £27,966.

With the additional £3,000 CGT allowance, total capital gains subject to taxation stand at £68,524.

For a lower-rate taxpayer, this equates to a CGT bill of £12,334, while a higher-rate taxpayer selling a second home in London today would face a charge of £16,446.

Redbridge the worst London borough to be a second homeowner

The worst boroughs to be a second homeowner over the last decade, based on a 24% higher-rate capital gains tax liability, are: Redbridge (£31,381), Havering (£30,153), Bromley (£29,140), Bexley (£29,052), and Waltham Forest (£29,006). Each of these areas has seen substantial house price growth since 2015, resulting in significant tax exposure for those exiting the market.

Prime London second homeowners escaping unscathed

However, while outer London investors have faced steep increases in property values, second homeowners across prime central London have largely escaped unscathed due to a decade of market stagnation and, in some cases, decline.

In Kensington and Chelsea, the average home is now worth £75,546 less than it was ten years ago, meaning no capital gains tax is owed when selling a second home. The same applies to Westminster, Hammersmith and Fulham, and the City of London, where prices have all fallen since 2015.

Even in boroughs where values have grown modestly, weaker market performance has left second homeowners exempt from CGT when selling up. Areas such as Tower Hamlets, Islington, Wandsworth, and Southwark have seen minimal appreciation over the last decade, leaving their long-term investors effectively immune from capital gains taxation once the CGT allowance and deductible costs are accounted for.

Islay Robinson, CEO of Enness Global, commented:

“Capital gains tax has become an increasingly significant consideration for property investors – particularly following recent rate increases and the reduction of the annual exemption – and whilst the London market continues to deliver robust long-term returns in many areas, those gains now come with a heavier tax burden for second homeowners.

At the same time, the reduction in values across many prime postcodes over the last decade has shielded many high-end second homeowners from capital gains liabilities. So, whilst they may be in the red with respect to the equity built on their investment, the silver lining is that they won’t be penalised for trying to off-load underperforming bricks and mortar assets in the current market climate.

It’s a reminder that property investment returns are highly localised and that strategic planning, timing, and structuring are vital when managing or exiting a high-value asset.”

EAN Breaking News

Breaking News from the team at Estate Agent Networking. Have a new story to share with us? Then please get in contact today! When and where we can we will refer to third party websites with a 'live link back' where news was released first.

You May Also Enjoy

Breaking News

Volume doubles as property market sees strong return of new applicants

Foxtons Lettings Market Index – January 2026 Demand rebounded sharply from December, with registrations up 93% month on month and new renters per instruction up 11% compared to December, reflecting a seasonal uplift in activity at the start of the year. New renters per new instruction fell 12% year on year, indicating that competitive pressure…
Read More
Rightmove logo
Breaking News

Property valuation leads to agents up 50% on last year

The launch of a new valuation product and AI optimisations to the existing product suite led to a significant uplift in valuation leads for agents from Rightmove in January. Valuation leads grew by 50% in January 2026 compared to the same period last year. The launch of Online Agent Valuation towards the end of 2025 helps connect…
Read More
Breaking News

Worst areas for landlord eviction waiting times

The latest research industry insight from LegalforLandlords has highlighted where the longest and shortest wait times are when it comes to court hearing dates for landlords who are trying to repossess their properties, with the most overstretched courts found in the likes of Birmingham, Croydon, and Slough. Having analysed internal data on wait times for…
Read More
Breaking News

726,000 rented homes could remain non-decent by 2035

And that’s without holding them to the updated standard outlined in the recent DHS consultation A new consultation on the Decent Homes Standard (DHS) has suggested that all rented homes, private and social, must meet an updated, more stringent standard by 2035. However, new research from Inventory Base reveals that if the current rate of…
Read More
Breaking News

UK House Price Index for December 2025

The latest UK House Price Index shows that: The average monthly rate of house price growth in December was -0.7%. Average UK house price annual inflation was 2.4% in the 12 months to December 2025. As a result, the average UK house price currently sits at £270,000.   Here are some thoughts from the Industry.…
Read More
Cozy Pet Cat Tree Grey
Breaking News

10 things all tenants need to know when renting now

The Renters’ Rights Act 2025 received Royal Assent on 27th October 2025 and will introduce major reforms to private renting in England. The first raft of measures affecting tenants will come into force on 1st May this year. So, whether you currently have a tenancy agreement or are planning to rent this year, here are…
Read More