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The extension of CGT to non-residents reflects a deliberate policy shift by HMRC to capture gains on UK property regardless of where the owner resides. Prior to April 2015, non-residents could sell UK residential property without triggering any CGT liability. This represented a significant tax advantage that attracted wealthy foreign buyers and created arbitrage opportunities for those planning to relocate.
From 5 April 2015, non-residents who disposed of UK residential property became liable to CGT on the gain made. This applied to individual non-residents and trustees. The regime was then broadened on 6 April 2019 to encompass all UK property types - commercial property, land, and development sites - not merely residential dwellings.
The critical question for any non-resident property owner is: are you within scope? The answer hinges on residency status, not citizenship. A British citizen living in Spain, France, the United Arab Emirates, or any other jurisdiction will be treated as a non-resident by HMRC for these purposes, provided you do not satisfy the statutory residence test (SRT) for the tax year in which the disposal occurs.
Understanding this scope is the first step. Many expats operate under the mistaken belief that because they have left the UK, they can sell property tax-free. This is a dangerous assumption.
The gain subject to CGT is the difference between your acquisition cost and the disposal proceeds. However, for non-residents selling property acquired before the commencement date, rebasing rules apply.
Rebasing allows non-residents to calculate their gain from the market value at the commencement date rather than the original purchase price. This can materially reduce the taxable gain.
If you purchased a residential property in 2010 for £300,000 and it was worth £450,000 on 5 April 2015, you calculate the gain from £450,000 to the eventual sale price, not from £300,000. This can save substantial tax where property has appreciated significantly before the commencement date.
To claim rebasing, you must elect within the time allowed for submitting your tax return for the year of disposal. Elections made outside this window are not accepted. The practical implication is clear: non-residents cannot make retrospective rebasing claims years after selling property. Planning should commence before disposal to ensure such elections are filed on time.
Valuation of property at the rebasing date requires evidence. HMRC will accept market-comparable approach valuations, surveys, council valuations, or professional estate agent valuations from the relevant date. Estimates or approximations invite challenge. If you cannot obtain reliable valuation evidence, your rebasing claim will be disputed, and you may find yourself defending a higher gain than claimed.
Expats holding significant UK property portfolios should commission professional valuations at the rebasing date if these are not already held. The cost is modest compared to the potential tax saving.
From April 2019 onwards, non-residents are subject to the same CGT rates as UK residents. As of the 2025-26 tax year, these are:
These are flat rates; they do not align with income tax brackets. A higher rate income tax payer always pays 24% on property gains, regardless of their marginal income tax rate.
The annual exempt amount is £3,000 for the 2025-26 tax year. This is the amount of gain you can make without incurring any CGT liability. However, the annual exempt amount has been frozen at this level and will remain so until at least 2030. For those with modest gains, the annual exempt amount may eliminate or substantially reduce the tax bill. For those disposing of high-value property, it is merely a drop in the ocean.
The calculation is straightforward: - Gain on disposal = Proceeds less acquisition cost (or rebased value) - Less annual exempt amount = Taxable gain - Taxable gain multiplied by 18% or 24% = CGT payable
Expats frequently ask whether they can split transactions or structure disposals to utilise the annual exempt amount twice. The answer is no. HMRC will view transactions related in time and substance as a single disposal. Disposing of two properties in the same tax year, or a single property in tranches, does not allow you to claim the annual exempt amount more than once per year. Similarly, disposing of a property held with a spouse does not allow two annual exemptions unless both spouses own the property in equal shares and both dispose of their share.
Private Residence Relief (PRR) is the most significant exemption available to non-residents selling UK property. In many cases, it can eliminate the CGT liability entirely.
PRR exempts from CGT the gain relating to periods during which a property was your principal private residence (main home). For non-residents, PRR is available only for periods when the property was genuinely your main home and you met the statutory residence requirements in effect at that time.
Since 6 April 2015, only non-residents who were previously UK residents can claim PRR for pre-April 2015 periods. The rules distinguish between:
The final period relief is particularly valuable. Even if you have not lived in the property for several years, the last 9 months of ownership may be covered by PRR. This can eliminate or substantially reduce a gain made between your departure and eventual sale.
PRR is not claimed on your return; it is computed by reference to the statutory requirements. However, you should retain evidence of your residence periods. HMRC may challenge your claim with reference to council tax records, electoral roll registration, and other documentary evidence. If you cannot substantiate occupation periods, the claim will fail.
A critical limitation: non-residents cannot claim PRR for periods of non-residence. If you left the UK in 2018 and sold the property in 2025, PRR is available only for periods before departure plus the final 9 months. The years of non-residence in between are not covered.
Many expats make the mistake of assuming they retain PRR indefinitely on a former home. Once you become non-resident, PRR ceases to apply for future occupation periods. This is a substantial issue if property has appreciated significantly since departure.
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When you sell UK property as a non-resident, you must file a Capital Gains Tax return with HMRC within 60 days of the date of completion. This is a strict deadline with no discretionary extensions.
The 60-day requirement applies regardless of: - Whether you owe any tax - Whether the transaction results in a loss - Whether you have obtained professional advice - Whether you have structured a transaction assuming relief would apply
Failure to comply within 60 days triggers an automatic penalty of £100. If the return is not filed within the following 12 months, a further penalty of 5% of the tax due may be charged. These are not modest administrative penalties - they compound the burden of non-compliance.
For conveyancing purposes, completion is the date when title transfers to the buyer. This is typically the date recorded on the transfer deed. You must count from this date, not from exchange of contracts, receipt of funds, or when you become aware of the sale. Using the wrong date is no defence.
The 60-day return must include: - Your name and address - The property address and description - The date of acquisition - The cost of acquisition - The date of disposal - The disposal proceeds - The gain or loss - Any reliefs claimed - The CGT payable
You are also required to pay any CGT due within the same 60-day period. If you do not, interest accrues automatically. For payments not made on time, interest is charged at HMRC's interest rate, currently significantly higher than bank deposit rates.
Practical compliance points: - Instruct your conveyancer to provide completion details immediately - Engage a tax adviser promptly if you are unsure of your position - Calculate reliefs carefully before filing - File the return as early as possible; do not wait until day 59 - Ensure payment clears before the deadline - Retain all documentation and evidence supporting the return
The 60-day deadline is absolute. HMRC does not grant extensions for missing documents, foreign bank delays, or adviser oversight. By the time you realise you have not filed, it is too late. Mark completion dates prominently and treat the 60-day clock as a fixed constraint on your planning.
The United Kingdom maintains double taxation treaties with most countries. These treaties seek to ensure that income or gains are not taxed twice - once in the UK and again in your country of residence.
For UK property sales, treaty relief operates by allowing you to claim a credit against your home country tax for UK tax paid. If you sell a property in the UK and pay 24% CGT, and your home country also taxes the gain at, say, 25%, you can typically credit the UK tax against the home country liability. You then pay the difference to your home country, if any.
However, treaty relief mechanisms vary significantly by treaty. Some treaties provide for reduced rates of tax in the country of source (the UK). Others simply provide for foreign tax credits. Some jurisdictions do not tax the global gains of residents on a net basis, which complicates relief mechanics.
Common scenarios illustrate the variation: - Spain taxes residents on worldwide gains at rates up to 27%. A British expat in Spain selling a UK property can credit UK CGT against Spanish tax, paying the marginal rate to Spain - France taxes residents on worldwide gains; a seller can similarly credit UK tax - The United Arab Emirates does not tax capital gains. A seller cannot obtain treaty relief because there is no home country tax to credit - Australia taxes residents on worldwide gains; credit is available
The interaction between UK CGT and your home country's tax regime is complex and requires specific advice tailored to your jurisdiction. Capital Gains Tax Planning for British Expats in Portugal and similar single-country guides provide jurisdiction-specific detail. You must obtain specific advice from a tax adviser with expertise in both jurisdictions.
Treaty relief does not alter your UK reporting obligations. You must still file within 60 days and pay UK tax on time. Treaty relief is claimed later when you file your return with your home country tax authorities. If you do not claim relief there, you will be taxed twice - once in the UK and again at home. This is not a rare issue; it occurs regularly when expats are unaware of relief mechanisms or miss deadlines in their home country.
For expats in zero-tax jurisdictions such as the UAE, treaty relief does not apply because there is no matching home country tax. The UK CGT is effectively final. This is a significant planning consideration. How the UAE's Zero-CGT Environment Benefits British Expat Investors explores this dynamic in detail.
HMRC has implemented a range of anti-avoidance provisions specifically targeting non-resident property disposals. These rules are designed to prevent evasion through corporate structures, partnerships, and indirect ownership arrangements.
Indirect disposal rules capture gains made through the sale of company shares where the company owns UK property or interests in such property. If an individual holds shares in a company that owns UK property, and those shares are sold at a gain, the seller might expect that they pay CGT only on the share gain at basic rates (20% for gains above the annual exempt amount). However, anti-avoidance rules ensure that if the company is a property company and the share sale constitutes an indirect disposal of UK property, special rules apply.
The detailed mechanics of indirect disposal rules are complex. Generally, if the company is a close company (broadly, a company controlled by five or fewer individuals) and the main or substantial purpose of the transaction is to avoid non-resident CGT, the disposal will be treated as a direct property disposal, triggering the non-resident CGT rules.
Practical implications: - Disposing of a property-holding company as a non-resident may not eliminate non-resident CGT - Partnership interests in partnerships holding UK property may be within scope - Trusts that own UK property are within scope - Arrangements entered into after April 2019 with the purpose of avoiding non-resident CGT are scrutinised intensely
Expats should not assume that a holding structure avoids non-resident CGT. If you own UK property through a company, partnership, or trust, seek specific advice on the tax position before any disposal. The anti-avoidance rules are strictly applied, and disputes with HMRC are resolved in favour of the revenue authorities in the vast majority of cases.
Planning should focus on legitimate relief mechanisms - PRR, rebasing, and treaty relief - not on corporate structures designed to obscure the economic position.
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If your UK property is let out on a furnished holiday basis, a separate exemption may apply. Furnished holiday lets were, for many years, treated more favourably than standard residential lettings for CGT purposes, qualifying for certain reliefs.
However, the CGT treatment of furnished holiday lets changed substantially with effect from 16 March 2020. Gains on disposal of furnished holiday lets are now charged to CGT at the standard rates (18% or 24%), not at preferential rates. The main advantage of furnished holiday let status for CGT purposes has therefore been substantially eroded.
For property let on a furnished holiday basis before 16 March 2020, transitional relief may apply. The interaction between the CGT regime and furnished holiday let status is complex and depends on when the property was acquired, when it ceased to be a furnished holiday let, and other factors.
Expats renting out UK property should be particularly cautious here. Furnished holiday let status provides advantages for income tax purposes (capital allowances, trading loss relief), but the CGT position has deteriorated. If you are considering a sale, the furnished holiday let status may no longer provide meaningful CGT relief. Professional advice is essential.
If UK property is owned jointly with a spouse, each spouse's interest is treated separately for CGT purposes. If the property is owned 50-50 and the gain is £200,000, each spouse may claim the annual exempt amount separately, reducing taxable gains to £197,000 each (assuming the £3,000 annual exempt amount).
However, the position is more nuanced if property is owned in unequal shares. If one spouse holds 75% and the other 25%, each is taxable on their respective share of the gain. If you are considering a property sale and not yet own it as joint owners, restructuring ownership before disposal can be beneficial. This must be done carefully, however, as the timing affects whether rebasing applies and whether PRR is available.
For non-resident spouses, a practical issue arises: if only one spouse is non-resident and the other remains UK resident, the non-resident spouse is subject to non-resident CGT rules (18% or 24%), whilst the resident spouse may be subject to resident CGT rules (20% or 40% depending on income). This creates a split treatment that requires careful return filing. Both spouses will have separate CGT returns; each calculates gain and relief on their share.
Family ownership structures involving children or multiple family members present additional complications. If property is held in the names of trustees for beneficiaries, or if a property is transferred to children, CGT implications can be significant. Transfers between spouses are normally treated as a no-gain, no-loss disposal, deferring CGT. Transfers to children or other family members trigger an immediate CGT liability on the market value.
For expats considering estate planning or family ownership restructuring, seek advice before implementing any transfers. The tax consequences can be material, and opportunities to defer or reduce tax are frequently missed through informal family arrangements.
Planning for CGT should commence before you leave the UK, not after you have already relocated. The UK Exit CGT: What You Must Know Before Leaving the UK guide sets out the pre-departure considerations in detail, including crystallisation of gains and timing of disposals.
If you own property and plan to relocate, consider disposal timing carefully. If you dispose of property whilst UK resident, you are subject to resident CGT rules and do not lose access to principal private residence relief. If you delay disposal until after becoming non-resident, you trigger non-resident CGT rules and lose PRR for non-residence periods.
For some expats, disposing of property before departure is the optimal strategy. For others, retaining property and disposing later is preferable. The decision depends on property value, anticipated appreciation, home country tax position, and personal circumstances.
The critical point is to plan, not to stumble into non-resident CGT liability by accident. Professional advice before departure can identify opportunities and risks that are invisible to those proceeding without guidance.
Thomas is qualified through the Chartered Institute for Securities & Investment, equipping him with the expertise necessary to offer comprehensive wealth planning and investment management services. His approach is client-focused and holistic, ensuring that every financial plan is crafted to align with his clients’ personal goals and circumstances.
This article provides general information about non-resident capital gains tax on UK property and is not tax advice. Individual circumstances vary, and tax rules are subject to change. You must obtain professional advice from a qualified tax adviser before making decisions about property disposal or tax planning. Skybound Wealth is not responsible for any errors or omissions in this article.
Review HMRC's guidance to confirm you are treated as non-resident for the tax year in question.
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Thomas Sleep advises British expats on non-resident CGT and can review your specific circumstances, calculate your likely liability, and ensure compliance timelines are met.
