Capital Gains Tax Planning for Non-UK Residents with UK Assets
A widespread misconception among British nationals living abroad is that non-UK residence exempts them from UK Capital Gains Tax. This was broadly true for most assets until 2015, and for non-residential UK property until 2019. Today it is substantially incorrect.
Non-UK residents are now subject to UK CGT — at the same rates as UK residents — on gains from UK residential and commercial property, UK land, and shares in "property-rich" companies. Understanding the scope of this liability, the calculations involved, and the planning opportunities available is essential for any non-resident with UK real estate, property company interests, or plans to return to the UK.
How the UK CGT System Works for Non-Residents
Non-Resident Capital Gains Tax (NRCGT): What It Covers
The Non-Resident CGT (NRCGT) rules, significantly expanded in 2019, apply to:
UK residential property: All disposals of UK residential property by non-UK residents are subject to NRCGT. This includes direct ownership of houses and flats, buy-to-let property, holiday homes, and properties rented on short or long leases.
UK commercial property and land: From April 2019, disposals of UK commercial property and land by non-UK residents are also subject to NRCGT.
UK property-rich companies: If a non-resident disposes of shares in a company that derives 75% or more of its gross asset value from UK land, the disposal is treated as a disposal of UK land for NRCGT purposes. This catches indirect property investment structures such as private SPVs (Special Purpose Vehicles) holding UK property.
Collective investment vehicles (CIVs): Interests in UK REITs and some other vehicles investing in UK property are also within scope.
What Is Excluded
UK listed shares and securities (other than property-rich companies): Non-UK residents are not subject to UK CGT on gains from UK-listed shares, bonds, or investment funds that are not property-rich. A non-resident holding Barclays shares, a FTSE 100 ETF, or UK corporate bonds can sell without UK CGT.
Business assets (in some cases): Where non-resident business assets (trading company shares, business goodwill) are disposed of, specific rules apply. The NRCGT rules primarily target real property, not trading businesses.
The Rates: What You Pay
NRCGT is charged at the same rates as CGT for UK residents:
- Residential property: 18% (basic rate) or 24% (higher rate) on gains
- Non-residential property and land: 18% (basic rate) or 24% (higher rate) — the rates were equalised with non-property assets after the October 2024 Budget
- Shares in property-rich companies: Same rates as above
The rate that applies depends on the individual's total UK income and gains in the tax year of disposal. Gains are "stacked" on top of income; the portion falling within the basic-rate band is taxed at 18%, the remainder at 24%.
Non-UK residents are generally entitled to the CGT annual exempt amount (currently £3,000) on UK property disposals, provided they fall within a qualifying category — UK nationals, EEA/European Economic Area nationals, or residents of countries whose double taxation agreements with the UK confer the entitlement. UK government employees serving abroad also qualify. Most non-residents holding UK property will, in practice, be entitled to the £3,000 AEA; a tax adviser should confirm entitlement for the specific country of residence. Note that the CGT annual exempt amount is separate from — and does not require claiming — the UK income tax personal allowance, which has different and more restricted entitlement criteria for non-residents.
The Rebasing Date: A Critical Calculation Point
For properties acquired before 6 April 2015 (residential) or 6 April 2019 (commercial), the gain for NRCGT purposes is normally calculated only on the growth since the rebasing date — not from the original acquisition date.
There are three calculation methods available for historical properties:
- Default method: Calculate the gain only on the element after the rebasing date (use market value at 5 April 2015/2019 as the base cost)
- Retrospective method: Calculate the gain over the entire ownership period, but then time-apportion it so that only the post-rebasing proportion is brought into charge
- Actual method: Calculate the actual gain in the post-rebasing period using evidence of the property value at the rebasing date
The choice of method can produce very different NRCGT liabilities depending on when the property was purchased and how values have moved. For a property bought in 2000 that has increased significantly in value, the rebasing calculation (using 2015 market value as the base) typically produces a smaller taxable gain than the full gain from 2000. Professional valuation evidence for the rebasing date can be important.
Reporting Requirements
Non-residents disposing of UK residential property must:
- Report the disposal to HMRC within 60 days of completion using the UK Property Account (online reporting system)
- Pay any NRCGT due within the same 60-day window, based on an estimated calculation
The 60-day reporting window is strict. Penalties apply for late reporting even if no tax is due. The property sale solicitor should flag this requirement; in practice, the responsibility rests with the seller.
For UK commercial property disposals (post-2019), non-residents also need to report via self-assessment if they are registered for self-assessment, or use the Non-Resident Capital Gains Tax return.
Double Taxation: Paying Tax in Both Countries
Most jurisdictions where UK nationals live have double taxation agreements (DTAs) with the UK. The typical DTA treatment for property gains is that the country in which the property is located has primary taxing rights. This means:
- UK NRCGT applies on UK property gains for all non-residents
- The country of residence may provide a credit for the UK NRCGT paid, reducing or eliminating the local tax charge
In practice:
- UAE residents: The UAE has no personal capital gains tax; the full NRCGT is the only charge
- Cyprus residents: Cyprus has no capital gains tax on property outside Cyprus; UK NRCGT applies, no Cyprus tax
- Spain residents: Spain has CGT on worldwide gains for tax residents; the UK NRCGT paid should be creditable against the Spanish CGT liability (the rates are broadly similar so double taxation is unlikely)
- Thailand residents: Thailand generally taxes only Thai-source income for residents; UK NRCGT applies, limited Thai tax risk
Planning Opportunities for Non-Residents
Timing Disposals
Where possible, timing a disposal to fall in a low-income UK tax year can reduce the rate of NRCGT from 24% to 18%. For a non-resident with no UK income (no rental income from the property, no UK employment income), the full gain is in the basic-rate band up to the basic-rate limit (approximately £50,270 in 2026). On a gain of £100,000, the saving from ensuring basic-rate rather than higher-rate treatment is £6,000.
If the property has tenants and rental income, the income stacks below the gain for rate purposes. A high rental income year may push the CGT rate into the higher band.
Using a Spouse's Entitlement
Where a property is owned by a married couple, each owner reports their share of the gain independently. If one spouse has lower income, allocating a greater share of the property to that spouse (via a deed of variation if the ownership is not currently equal) can reduce the overall CGT rate. This requires advance planning before the property is sold.
Principal Private Residence (PPR) Relief
If the property was at any point your main residence, PPR relief can reduce the gain. The final 9 months of ownership always qualify for PPR relief (even if you were not living there). If the property was your main residence for a period, the PPR relief calculation can significantly reduce the taxable gain. Documenting the periods of actual residence is important.
Review Before Returning to the UK
If you intend to return to the UK and hold UK property, review the position before returning. Once you are UK-resident, disposals of UK property trigger standard UK CGT — the rebasing rules do not apply to UK residents. Where a property is at a significant unrealised gain, crystallising the gain while non-resident (using the rebasing calculation from 2015 or 2019) may produce a lower total tax charge than waiting until after return.
How Global Investments Can Help
NRCGT planning for non-residents requires careful attention to rebasing calculations, disposal timing, reporting deadlines, and the interaction with double tax treaty provisions. Global Investments works with non-resident UK property owners to assess the NRCGT position, identify planning opportunities, and ensure that disposals are properly reported within the required timeframes.
We coordinate with UK tax specialists to provide a joined-up service for internationally mobile clients with UK property interests.
This article is for general information purposes only and does not constitute personal tax or financial advice. Tax rules are complex and subject to change. Please seek qualified professional advice before making any disposal or planning decision.
This article is for general information only and does not constitute financial, legal or tax advice. Rules, prices and regulations change; verify current requirements with a qualified adviser before acting.