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Capital Gains Tax Planning
Hoxton Tax • Capital Gains Tax Planning
All professional services relating to this engagement are undertaken exclusively by Hoxton Tax Limited.
Capital Gains Tax planning focuses on how and when gains arise, ensuring disposals are structured efficiently and gains are calculated and reported correctly. While often seen as a tax that only crystallises on sale, the position is rarely that simple - particularly where assets have been built up over time, held across different jurisdictions, or form part of a wider financial strategy.
The UK Capital Gains Tax regime contains a number of complexities, from determining the correct base cost and availability of reliefs, through to understanding how residence and non UK sited assets impact the taxation of gains. Decisions taken years in advance of a disposal, including how an asset is held or transferred, can significantly influence the ultimate tax outcome.
Effective planning is therefore not just about minimising tax at the point of sale but ensuring that disposals are aligned with your broader objectives, managed proactively, and supported by accurate and timely reporting.
How does this impact you?
UK residents are generally subject to Capital Gains Tax on the disposal of worldwide assets. The tax arises when an asset is sold, gifted or otherwise disposed of, with the gain calculated based on the difference between sale proceeds and base cost.2. How are share options and other employment-related securities taxed in the UK, and when do tax liabilities arise?
The rate of Capital Gains Tax depends on your total taxable income, with gains typically taxed at 18% or 24% depending on whether you fall within the basic or higher rate bands. Each individual also has an annual exempt amount, allowing a level of gains to be realised tax-free each tax year, although this has reduced in recent years.4. Do I need to report my employment income on a UK Self Assessment tax return?
For UK residents, gains on foreign investments are still calculated under UK rules. This includes converting both the acquisition cost and disposal proceeds into sterling at the relevant exchange rates, meaning that foreign exchange movements can create or increase a taxable gain even where there has been little or no economic gain in local currency.
Yes. Most disposals must be reported through Self Assessment. In addition, disposals of UK residential property must generally be reported within 60 days of completion, even where no tax is ultimately payable.
A number of reliefs may be available depending on the asset and circumstances, including Business Asset Disposal Relief and reliefs for transfers between spouses. In addition, certain investments, such as those qualifying for the Enterprise Investment Scheme (EIS) and Seed Enterprise Investment Scheme (SEIS) can provide Capital Gains Tax advantages, including deferral or exemption of gains where conditions are met. The availability and application of these reliefs require careful consideration.
Yes. Gifting an asset is generally treated as a disposal at market value for UK Capital Gains Tax purposes, even where no money changes hands. This can create a tax liability without receiving sale proceeds.
Yes. Capital losses can generally be offset against gains in the same tax year or carried forward to future years. However, specific rules apply, and claims must be made correctly to ensure losses are available.
If you were non UK domiciled and claimed the remittance basis of taxation, pre April 2025, special rules existed for claiming losses. The October 2024 budget and removal of the non UK domicile regime, doesn’t earlier accrued losses back and careful advise must be sought.
Non-UK residents are generally not subject to UK Capital Gains Tax on non-UK assets. However, gains on UK property and in some cases shares in property-rich companies remain within the UK tax net.
It is also important to be aware of the temporary non resident rules which may bring certain gains and income back into charge, if you are non UK resident for less than five years.
If you leave the UK and return to become UK resident within five full years, gains realised during your period of non UK residence may still be taxed in the UK. These rules can apply to assets held before departure and require careful planning.
Double taxation agreements determine which country has taxing rights over a gain and whether relief is available for tax paid overseas. The outcome depends on the asset type and the specific treaty.
Why Hoxton?
At Hoxton Tax, we understand that Capital Gains Tax does not sit in isolation. For many clients, gains arise alongside wider investment decisions, business interests or succession planning considerations, meaning that the tax position must be viewed as part of a broader, long-term strategy rather than a standalone calculation.
Our approach is practical and forward-looking. We focus on ensuring that disposals are structured appropriately, reliefs are considered in the right context, and opportunities are identified early — particularly where assets are being passed between generations or form part of longer-term succession plans. The aim is not only to manage the immediate tax position, but to ensure that decisions taken today support future outcomes.
Where appropriate, we can also work alongside Hoxton Wealth advisers to ensure that tax planning is aligned with wider financial and investment strategies, providing a joined-up approach for clients who require it.
We support clients with:
• Structuring disposals of assets, ensuring that gains are calculated correctly and aligned with your wider financial and succession planning objectives.
• Planning the timing of disposals, including managing gains across tax years, making use of annual exemptions and considering interaction with income levels and tax rates.
• Advising on the use of Capital Gains Tax reliefs, including Business Asset Disposal Relief, Private Residence Relief (PPR), EIS and SEIS deferral or exemption opportunities, and the effective use of capital losses.
• Establishing and reviewing base cost, particularly where assets have been held over long periods, acquired in stages, or impacted by changes in residence or historic transactions.
• Supporting gifting and intergenerational planning, ensuring that transfers of assets are structured with full consideration of market value rules, holdover reliefs and the wider tax implications.
• Advising on ownership structures, including whether assets are held personally, jointly or within corporate or trust structures, with a focus on both immediate tax efficiency and longer-term succession outcomes.
• Managing cross-border aspects of gains, including periods of UK and non-UK residence, foreign tax exposure and interaction with double taxation agreements where relevant.
• Advising on UK property disposals and portfolios, including the availability of Private Residence Relief (PPR), interaction with letting or mixed-use, calculation of gains across multiple properties, and ensuring compliance with the 60-day reporting and payment requirements.
• Ensuring accurate reporting and compliance, including UK Self Assessment obligations and wider Capital Gains Tax reporting requirements.
Case study – Substantial UK Property
A UK-resident client disposed of a high-value residential property set within extensive grounds, where the total land area exceeded what would typically be expected for a property of that type. While the property had been the client’s main residence for a number of years, there were also periods of absence due to time spent overseas.
Given the size of the plot, Private Residence Relief (PPR) was not automatically available on the full disposal. We carried out a detailed review to determine what land could be considered as being required for the “reasonable enjoyment” of the property as a residence, taking into account the nature of the property, its setting and relevant case law principles in this area.
This involved analysing how the grounds were used in practice, whether certain areas went beyond what would ordinarily be expected, and how HMRC and the courts have interpreted “permitted area” in similar cases. Alongside this, we reviewed the client’s periods of occupation to assess whether any absences could qualify for deemed occupation treatment.
The gain was then apportioned between the qualifying residential element and the excess land, with PPR applied where available and Capital Gains Tax calculated on the remainder. The disposal was reported under the UK 60-day property reporting regime, with full disclosure of the methodology adopted.
By taking a structured and evidence-based approach, we were able to maximise relief where appropriate, support the position taken on the extent of qualifying land, and ensure that both the calculation and reporting were robust in the event of HMRC enquiry.
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