What Non-Residents Owe in UK Capital Gains Tax on Property

Do Non-Residents Pay Capital Gains Tax in the UK on Property Sales?

Yes. If you own UK property or land as a non-resident, HMRC will tax your gains. UK capital gains tax for non-residents applies to residential property since April 2015, commercial property and indirect disposals since April 2019, and the rules have tightened every year since. Understanding exactly what you owe, when you owe it, and how to structure around it is the difference between a clean exit and an expensive surprise.

How the UK Statutory Residence Test Determines Non-Resident Status

Residency for UK tax purposes is not a matter of intuition. The Statutory Residence Test (SRT), introduced in Finance Act 2013 and detailed in HMRC's RDR3 guidance, is the definitive framework. It runs through three sequential tests: automatic overseas tests, automatic UK tests, and the sufficient ties test. You pass through them in order, and where you land determines your status.

The automatic overseas tests are the cleanest exit. Spend fewer than 16 days in the UK in a tax year and you are automatically non-resident. If you were not UK-resident in any of the previous three tax years, that threshold rises to 46 days. Work full-time overseas with fewer than 91 UK days and fewer than 31 UK workdays, and you also qualify automatically.

The automatic UK tests pull you back into residency. Spend 183 days or more in the UK in a tax year and you are automatically UK-resident, regardless of where else you live.

The sufficient ties test is where it gets granular. If you fall between the automatic tests, HMRC counts your UK ties: family, accommodation, substantive work, 90-day presence in prior years, and country tie. The more ties you have, the fewer days you need to spend in the UK before becoming resident.

The practical implication for FATFIRE investors is this: if you are managing a UK property portfolio while spending time in the country, you need to track days meticulously. A single tax year of inadvertent UK residency can pull your global income and gains into the HMRC net, not just your UK assets.

One additional wrinkle: the SRT applies year by year. You can be non-resident one year and resident the next. Timing a disposal around your residency status is a legitimate planning tool, but it requires advance modelling, not a last-minute calendar check.

What UK Assets Are Subject to CGT for Non-Residents

The scope of non-resident CGT has expanded materially since 2015. HMRC's current guidance on Non-Resident Capital Gains Tax on UK property or land sets out four main categories.

Residential property has been in scope since April 2015. This covers any dwelling in the UK, whether rented out, left vacant, or used occasionally as a pied-à-terre. The property does not need to generate income for the disposal to trigger a CGT liability.

Commercial property and all UK land came into scope in April 2019 under the Finance Act 2019. Office buildings, retail units, industrial sites, and agricultural land are all now chargeable. Before 2019, non-residents could sell commercial UK property entirely free of UK CGT. That window closed.

Indirect disposals through property-rich entities are the category that catches the most sophisticated investors off guard. Under the Finance Act 2019 rules, if you dispose of shares or interests in a company where 75% or more of the entity's value derives from UK land, and you hold at least a 25% interest, that disposal is treated as a direct UK property disposal for CGT purposes. The gain is calculated as if you sold the underlying property directly.

Other UK assets held by non-residents are generally outside the CGT net, with limited exceptions. UK equities in non-property-rich companies, gilts, and most financial instruments are not chargeable for non-residents.

Rates shown are basic rate / higher rate for individuals. Companies pay corporation tax at 25% on profits over £250,000 (19% for smaller profits). The higher individual rates apply when total UK income and gains exceed the basic rate band.

UK CGT Rates for Non-Residents in 2024/25: What Changed in October 2024

The Autumn Budget 2024 changed the residential property CGT rates mid-year, effective from 30 October 2024. The higher rate on residential property dropped from 28% to 24%. The basic rate remained at 18%. For commercial property and other assets, rates stayed at 10% and 20% respectively.

This mid-year change creates a planning consideration for anyone with multiple UK disposals in the 2024/25 tax year. A transaction completed before 30 October 2024 faces a 28% higher rate on residential property. The same transaction completed after that date faces 24%. On a £500,000 gain, that is a £20,000 difference.

The annual exempt amount has also been cut sharply. Under the Finance (No. 2) Act 2023, the individual annual exempt amount fell to £6,000 for 2023/24 and to £3,000 for 2024/25 onwards. This compares to £12,300 in 2022/23. For a non-resident with a single UK property disposal, the practical impact is modest relative to the gain size. For someone managing multiple smaller disposals across a portfolio, the cumulative effect is meaningful.

Rates reflect the 2024/25 tax year, with residential property higher rate reflecting the post-30 October 2024 reduction. Verify current rates with HMRC or a UK tax adviser before any disposal.

How to Calculate Your UK CGT as a Non-Resident: Rebasing and the Numbers That Matter

The basic calculation is straightforward: disposal proceeds minus acquisition cost minus allowable expenditure equals the chargeable gain. Allowable expenditure includes purchase legal fees, stamp duty land tax paid on acquisition, capital improvement costs (not repairs), and disposal costs including agent fees and legal fees.

The complexity for non-residents lies in the rebasing rules. HMRC's guidance in CG-APP18 confirms that non-residents may elect to rebase their UK property to its April 2015 market value (for residential property) or April 2019 market value (for commercial property). Only the gain accruing after the relevant rebasing date is taxable.

The numbers on this can be substantial. Consider a non-resident who purchased a London property in 2010 for £1.5 million and sells in 2025 for £3 million. Without rebasing, the gain is £1.5 million. If the property was worth £2.2 million in April 2015, the rebased gain is £800,000. At the 2024/25 higher rate of 24%, that is a tax bill of £192,000 rather than £360,000. The rebasing election saves £168,000.

The rebasing election is irrevocable and must be made on the CGT return. It also requires a credible professional valuation as at the relevant date. Many non-residents either do not know the election exists or fail to commission a retrospective valuation, leaving the saving unclaimed. If you hold UK property acquired before April 2015, obtaining that valuation now, before any disposal, is straightforward planning.

Two alternative computational methods exist alongside rebasing: the time apportionment method (which allocates the total gain pro-rata across the ownership period, taxing only the post-April 2015 proportion) and the straight gain method (which taxes the full gain from original acquisition). You can choose whichever produces the lowest tax, but you must make the election on the return.

The 60-Day Reporting Rule: What Non-Residents Must File After Selling UK Property

HMRC's official guidance (HS307, 2024) confirms that non-residents must report and pay CGT on UK residential property disposals within 60 days of completion. This is not a self-assessment deadline. It is a separate, standalone obligation.

The 60-day clock starts on the completion date, not exchange. For commercial property disposals, the same 60-day rule applies for non-residents. The return is filed through HMRC's online CGT on UK Property service, and payment is made simultaneously.

The rule applies even when no CGT is owed. If you sell at a loss, if treaty relief eliminates the liability, or if the gain falls within the annual exempt amount, you still need to file within 60 days. This is the detail that catches people out. Solicitors handling the conveyancing may not flag it proactively, particularly on transactions where the tax liability appears to be zero.

Penalties for missing the deadline start at £100 automatically. After six months, the penalty increases to £300 or 5% of the tax due, whichever is higher. After twelve months, a further penalty applies. On a large disposal where the underlying liability is zero due to treaty relief, the penalties are still levied on the failure to file, not on the tax owed. HMRC scrutiny tends to follow.

If you also file a UK self-assessment return (because you have other UK income, for example), the property disposal must appear there as well. The 60-day return does not replace the self-assessment obligation; it runs alongside it.

Which Countries Have Double Taxation Treaties with the UK That Affect Capital Gains

The UK has double taxation agreements with over 130 countries, as detailed in HMRC's International Manual. The CGT provisions vary significantly by treaty, and the common assumption that a treaty eliminates UK CGT on UK property is wrong in most cases.

The US-UK treaty (Article 13) is the clearest example. It explicitly preserves the UK's right to tax gains on UK real property regardless of the seller's US residency. A US-based investor selling a London flat pays UK CGT at the applicable non-resident rate. They then claim a foreign tax credit on their US return for the UK tax paid. This prevents double taxation but does not reduce the combined effective rate below the higher of the two countries' rates. If the UK rate is 24% and the US federal rate is 20%, the investor pays 24% total, with the US taking nothing additional. If the US rate were higher, the investor would pay the US rate with a credit for UK tax paid.

Other major treaty jurisdictions follow similar patterns for UK real property. The UAE has no income or capital gains tax domestically, so UAE-resident investors receive no treaty offset mechanism. They pay UK CGT in full with no home-country credit. This is worth modelling explicitly before structuring a UK property investment from a UAE base.

Germany, France, and most EU member states have treaties that allow the UK to tax UK-situated property gains. The investor then claims relief in their home jurisdiction, typically through either a foreign tax credit or an exemption with progression method.

Singapore's approach to capital gains taxation differs fundamentally from the UK's: Singapore does not tax capital gains domestically. A Singapore-resident investor selling UK property pays UK CGT with no Singapore liability and no credit mechanism needed. The full UK CGT rate applies. For context on how different jurisdictions treat gains, the contrast with Singapore's approach to capital gains taxation and European capital gains tax frameworks illustrates why UK property can carry a higher effective rate than comparable investments elsewhere.

Treaty relief is claimed on the NRCGT return and, where applicable, on the self-assessment return. The mechanism is a credit against UK tax, not an exemption from filing.

How Holding Company Structures Affect UK CGT for Non-Residents

Before April 2019, holding UK property through an offshore corporate structure was a common and effective way for non-residents to avoid UK CGT entirely. The Finance Act 2019 closed that route.

Under the property-rich entity rules, a non-resident disposing of shares in a company where 75% or more of the entity's value derives from UK land is treated as making a direct UK property disposal, provided the non-resident holds at least a 25% interest. The gain is computed as if the underlying property were sold directly. The corporate CGT rate (25% for profits over £250,000 from April 2023) may now exceed the individual rate in some scenarios, making the structure actively counterproductive.

Many FATFIRE investors established offshore holding structures before 2019 on the assumption that the corporate wrapper would provide permanent CGT insulation. Those structures now require review. The compliance costs of maintaining an offshore company, combined with a CGT rate that may be higher than direct ownership, can make restructuring the better outcome. That is a conversation for UK tax counsel with specific knowledge of the entity's history and the investor's wider position.

The one scenario where a corporate structure may still offer advantages is where the investor intends to reinvest proceeds into further UK property rather than extracting cash. The corporate vehicle can defer personal tax on retained gains, though this benefit needs to be weighed against the 25% corporate rate and the eventual extraction cost.

For investors considering the full range of tax-efficient jurisdictions for holding structures, understanding tax-efficient jurisdictions like the Cayman Islands and countries with no capital gains tax provides useful context for structuring decisions, though UK-sited assets remain subject to UK CGT regardless of the holding jurisdiction post-2019.

Practical CGT Planning Strategies for Non-Resident Investors

The annual exempt amount of £3,000 is small relative to the gains most FATFIRE investors generate on UK property. The meaningful planning levers are elsewhere.

Rebasing. As covered above, the April 2015 rebasing election for residential property is the single highest-value planning point for investors with legacy UK holdings. Commission the valuation before you need it.

Timing disposals around the tax year. The UK tax year runs from 6 April to 5 April. If you have both gains and losses across a UK portfolio, realising them in the same tax year allows direct offset. A loss on one UK property can reduce the gain on another. Losses cannot be carried back, but they can be carried forward against future UK gains.

Timing around residency status. If you are considering returning to UK residency, disposing of UK property while non-resident may be preferable. Once you become UK-resident, your global assets come into the CGT net, not just UK property. The SRT's day-count rules mean this requires advance planning, not a last-minute decision.

Principal private residence relief. If you have ever occupied a UK property as your main residence, you may be entitled to relief for the period of occupation plus a final nine months of ownership, regardless of where you live at the point of sale. This applies to non-residents. The relief can eliminate a significant portion of the gain on a property that was genuinely used as a home before the investor relocated abroad. The CGT implications for non-primary residences and capital gains tax on vacation property sales follow different rules and are worth reviewing separately if your UK holdings include mixed-use or occasional-use properties.

Loss harvesting across the portfolio. Non-residents can only offset UK CGT losses against UK CGT gains, not against gains in other jurisdictions. Keeping a clear record of unrealised losses across the UK portfolio allows you to time realisations to offset gains in the same year.

Instalment arrangements. In limited circumstances, HMRC will agree to pay CGT in instalments where the proceeds are not immediately available. This is rare and requires specific conditions, but it is worth knowing the option exists for illiquid assets.

For investors with capital gains tax on foreign property investments, the interaction between UK CGT and home-country tax obligations requires coordinated advice across both jurisdictions, not sequential advice from separate advisers who do not speak to each other.

Worked Examples: UK CGT Calculations for Non-Resident Investors

These examples use 2024/25 rates and assume disposals completed after 30 October 2024.

Example 1: London residential property with rebasing election

A Singapore-resident investor purchased a London flat in 2008 for £900,000. The property was worth £1.6 million in April 2015. She sells in March 2025 for £2.8 million. Allowable costs total £85,000 (acquisition fees, stamp duty, and a kitchen extension in 2018).

Without rebasing: gain is £2.8M minus £900,000 minus £85,000 = £1,815,000. CGT at 24% = £435,600.

With April 2015 rebasing: gain is £2.8M minus £1.6M minus £85,000 (post-2015 improvement costs only; pre-2015 costs are absorbed into the rebased value) = £1,115,000. CGT at 24% = £267,600.

The rebasing election saves £168,000. Singapore has no domestic CGT, so there is no treaty offset. The full UK liability applies.

Example 2: Commercial property disposal

A UAE-based investor sells a Manchester office building in January 2025 for £4.2 million. He purchased it in 2021 for £3.1 million. Allowable costs are £120,000.

Gain: £4.2M minus £3.1M minus £120,000 = £980,000. No rebasing available (acquired after April 2019). Annual exempt amount: £3,000. Taxable gain: £977,000. CGT at 20% (commercial property higher rate) = £195,400.

The UAE has no domestic CGT. No treaty offset applies. The full £195,400 is due to HMRC within 60 days of completion.

Example 3: Property-rich entity disposal

A US-based investor holds 30% of a Cayman Islands company whose sole asset is a central London development site valued at £10 million. He acquired his stake for £2 million in 2020. He sells his 30% interest in 2025 for £3.5 million.

The company is property-rich (100% of value from UK land). The investor holds more than 25%. The disposal is treated as a direct UK property disposal. Gain: £3.5M minus £2M = £1.5M. CGT at 20% (land, not residential) = £300,000. The investor claims a US foreign tax credit for the UK CGT paid. Depending on the US federal rate applicable, the combined effective rate will be the higher of the two countries' rates.

Staying Current: How UK CGT Rules for Non-Residents Keep Changing

The trajectory since 2015 has been consistent: HMRC has progressively extended the non-resident CGT net, reduced exemptions, and tightened reporting requirements. The annual exempt amount has fallen from £12,300 in 2022/23 to £3,000 in 2024/25. The residential property higher rate dropped from 28% to 24% in October 2024. The property-rich entity rules arrived in 2019. Each change has increased the effective tax burden on non-resident UK property investors.

There is no structural reason to expect this trend to reverse. The UK government has consistently treated non-resident property investors as a revenue source, and the political appetite for further tightening remains. Investors with significant UK property exposure should model their positions against plausible future rate scenarios, not just current rates.

For investors evaluating the UK against other markets, a comprehensive guide to UK investment strategies provides broader context beyond the tax dimension. The capital gains tax treatment of ETFs and unrealized capital gains taxation globally are also worth understanding as part of a complete picture of how different asset classes and jurisdictions interact at the portfolio level.

The practical recommendation is straightforward: any UK property disposal above £500,000 warrants a pre-transaction CGT review by a UK tax adviser with specific non-resident expertise. The rebasing election, treaty position, and timing considerations together can move the outcome by six figures on a single transaction. That is not a decision to delegate to the conveyancing solicitor.

References

• HM Revenue & Customs -- "Capital Gains Tax for non-residents: UK residential property (HS307)" (2024)
• HM Revenue & Customs -- "RDR3: Statutory Residence Test" (2023)
• HM Revenue & Customs -- "Non-Resident Capital Gains Tax (NRCGT) on UK property or land" (2024)
• HM Revenue & Customs -- "Tax on chargeable gains: rates and annual exempt amount" (2024)
• HM Revenue & Customs -- "INTM: International Manual -- Double Taxation Relief" (2024)
• HM Revenue & Customs -- "CG-APP18: Non-Resident Capital Gains -- Rebasing and Computational Rules" (2023)
• UK Parliament -- "Finance Act 2019" (2019)
• UK Parliament -- "Finance (No. 2) Act 2023" (2023)