Selling UK Property as a Non-Resident: Tax Rules

History of Non-Resident CGT

Before April 2015, non-residents were generally not subject to UK CGT on UK property sales. The rules were introduced from April 2015 for residential property and extended in April 2019 to all UK land and property, partly to align UK practice with most other countries' treatment of property.

The introduction means non-residents selling UK property realised at gains since April 2015 (residential) or April 2019 (all) are within scope. Acquisitions before those dates use the default rebasing or alternative methods.

Calculating the gain

Default rebasing: the gain is calculated on the difference between the sale proceeds and the property's value at 5 April 2015 (residential) or 5 April 2019 (all property). This is the standard method and works for most properties acquired before those dates.

Time apportionment: the gain since acquisition is apportioned to the period since the rebasing date. This can be more or less favourable than rebasing depending on price movements.

Straight-line method: the full gain since acquisition is apportioned by elapsed time, with only the post-rebasing portion charged.

Each method has its place; for most sellers, rebasing to April 2015/2019 is the simplest and often the most favourable.

Filing the Non-Resident CGT return

Non-residents must file a Non-Resident Capital Gains Tax return within 60 days of the property's completion (sale completion, not exchange). The return is filed online via HMRC. The tax is paid at the same time if not within self-assessment.

The 60-day deadline is strict; late filing triggers penalties even where there is no tax to pay (e.g. a loss). The penalty regime is in Finance Act 2009 Schedule 56.

Principal Private Residence relief for non-residents

Principal Private Residence (PPR) relief reduces or eliminates the gain on a property that has been the seller's only or main residence. For non-residents, PPR is restricted: the seller must have spent at least 90 midnights at the property in the tax year of disposal, or the property must have been the only or main residence.

The 90-midnights test is more demanding than for residents. Many non-residents selling their former UK home do not qualify for full PPR because they have not visited frequently enough in the disposal year.

Interaction with country of residence's rules

Most countries also tax their residents on worldwide capital gains. The Double Taxation Treaty between the UK and the country of residence determines whether the UK has taxing rights, the country of residence has taxing rights, or both with credit.

Most treaties give the UK primary taxing rights on UK real property (under the property article). The country of residence may then tax the gain with credit for UK tax paid, or may exempt it under treaty provisions. Specialist cross-border advice is normal.

Practical steps for selling

Engage a UK conveyancer experienced with non-resident sales. They handle the standard sale process and coordinate with the buyer's side. Engage a UK tax adviser experienced with NRCGT to calculate the gain and file the return.

Document the property's value at the rebasing date if needed (RICS valuation or comparable evidence). Where the rebasing approach is preferred, the valuation supports the calculation.

Selling before or after departure

Selling before becoming non-resident keeps the gain within UK resident CGT rules, with PPR (if applicable) on residents' terms. The sale completes while the seller is UK resident. This is often the cleanest approach for the main residence.

Selling after becoming non-resident triggers NRCGT. PPR is restricted, the 60-day return filing requirement applies, and the calculation uses one of the three methods. Where the property is not the seller's main residence at departure (a let property), NRCGT applies on the same basis.

Non-Resident Capital Gains Tax: the legal framework

Section 14B of the Taxation of Chargeable Gains Act 1992 (as amended): introduced NRCGT for residential property disposals by non-residents from 6 April 2015. Schedule 4ZZA-4ZZC of TCGA 1992 set out the detailed rules.

Extended to all UK land and property from 6 April 2019: under Finance Act 2019 amendments to TCGA 1992. Non-residential property and indirect interests in UK land are now within NRCGT scope.

Disposals: the NRCGT applies on disposal (sale, gift, exchange) of UK property by non-residents. The gain (sale proceeds minus allowable costs) is the chargeable amount.

Rates: residential property NRCGT is at 18% (basic rate) or 24% (higher rate) on the gain after the annual exempt amount. Non-residential property is at 10% or 20%. The annual exempt amount is the same as for resident CGT.

The three calculation methods

Default rebasing: the gain is calculated on the difference between sale proceeds and the property's value at 5 April 2015 (residential) or 5 April 2019 (non-residential and indirect interests). Most commonly used method for property acquired before the rebasing date.

Time apportionment: the gain is calculated for the full ownership period (acquisition to disposal), with only the post-rebasing portion treated as the chargeable gain. The apportionment is by elapsed time.

Straight-line method: the full gain is calculated, then apportioned by elapsed time across the ownership period. Different from time apportionment in the calculation approach.

Choice of method: each method can be more or less favourable depending on price movements. Most non-residents use the default rebasing where the property was acquired before the relevant date; for property acquired after the rebasing date, the full gain since acquisition is the basis.

RICS valuations: where the rebasing approach is used, the property's value at the rebasing date supports the calculation. Where contemporaneous valuations are unavailable, retrospective valuations by RICS-qualified surveyors are typical.

The 60-day return filing requirement

Deadline: 60 days from completion (the date the sale legally completes, not exchange of contracts). The return is filed online via HMRC's NRCGT return service.

Information on the return: details of the property, the disposal, the calculation method chosen, the gain figure, the tax due, the applicant's identity and tax reference.

Payment of tax: due with the return in most cases. Where the non-resident is within self-assessment, the tax is also reported on the annual self-assessment return, with the NRCGT return functioning as an advance payment.

Penalties for late filing: under Schedule 56 Finance Act 2009. Late filing triggers fixed penalties even where no tax is due (e.g. capital loss on the disposal). The penalties can be substantial; complying with the 60-day deadline is essential.

Specialist support: many UK conveyancers experienced with non-resident sellers coordinate the NRCGT return with the conveyancing. Some non-resident sellers engage UK tax advisers separately.

Principal Private Residence relief for non-residents

PPR relief: reduces or eliminates the gain on a property that has been the seller's only or main residence. For UK residents, PPR is widely available; for non-residents, restrictions apply.

Non-resident PPR conditions: the seller must have spent at least 90 midnights at the property in the tax year of disposal, or the property must have been the only or main residence (a higher bar in practice for non-residents).

The 90-midnights test: more demanding than for residents. Many non-residents selling their former UK home do not qualify because they have not visited frequently enough during the disposal year. Pre-planning visits to meet the 90-midnight threshold is sometimes the strategy.

Periods of UK residence count: where the seller was UK resident during part of the ownership period and lived in the property, those periods can support PPR even after becoming non-resident.

Final period exemption: the final 9 months of ownership are typically treated as if the property were the main residence for PPR purposes, regardless of actual occupation. This applies to non-residents as well, providing some relief even where the 90-midnight test is not met.

Cross-border tax: the DTT and the country of residence

UK has primary taxing rights on UK real property under most DTTs. The property article (typically Article 6 in OECD-style treaties) gives the source state (UK) the primary right to tax gains on real property.

The country of residence's tax position: typically taxes worldwide gains for residents. The DTT prevents double taxation by giving credit for UK tax paid or by exempting UK-source gains under treaty provisions.

Treaty network: UK has DTTs with over 100 countries. Each treaty's specific provisions on real property and capital gains are reviewed in the cross-border tax planning.

Practical implication: most sellers pay UK NRCGT and then declare the gain in the country of residence's tax return, with credit applied for UK tax. Some country-residence positions (specific exemptions, lower rates) make the country of residence taxation less than would otherwise apply.

Specialist cross-border tax advice: essential for sales straddling residence changes or involving complex structures (trusts, companies holding UK property).

Pre-sale tax planning to maximise relief

Timing of sale relative to leaving the UK: selling before becoming non-resident keeps the gain within UK resident CGT with potential PPR relief. Selling after triggers NRCGT with restricted PPR.

90-midnight test for non-resident PPR: where staying non-resident, planning visits to the UK property to meet the 90-midnight test in the tax year of disposal. Practical but requires specific travel.

Documentation of PPR period: where the property was the main residence in earlier years, evidence of the residence (council tax records, utility bills, electoral roll, NHS records) supports PPR.

Valuation at rebasing date: where rebasing to April 2015 (residential) or April 2019 (all property) is the calculation method, contemporary or retrospective RICS valuations support the calculation.

Specialist tax advice: for substantial gains or complex circumstances (jointly owned property, property held through companies or trusts, multiple properties, mixed-residence ownership history).

Cross-border tax planning for property sales

Statutory Residence Test (SRT): determines UK tax residence on a year-by-year basis. The automatic overseas tests, automatic UK tests, and sufficient ties tests in Schedule 45 FA 2013 give the framework.

Split-year treatment: applies to the year of departure or arrival where conditions are met. Cases 1-8 cover the specific scenarios; the year is treated as part UK (resident) and part overseas (non-resident).

Double Taxation Treaty: bilateral agreement between the UK and the country of residence allocates taxing rights and provides relief. Most DTTs use the credit method; the UK or country of residence taxes with credit for tax paid in the other.

Non-resident UK tax: continues on UK-source income (rental, pensions, property gains) after departure. UK dividends and interest are typically subject to disregarded income rules with no UK tax for non-residents.

Temporary non-residence: gains realised during absence of less than 5 complete tax years can be brought back into UK tax on return. Planning the absence period and the timing of gains is part of cross-border tax strategy.

Long-term planning across the immigration journey

Long-term planning across the visa lifecycle: the journey from initial visa to ILR to British citizenship spans 6-8 years typically. Building the documentary record, maintaining lawful status, planning extensions and switches, and the eventual settlement application all benefit from a long-term view.

Career and family planning around immigration: visa requirements interact with career progression, education choices, family timing, and other life decisions. Where significant life events are planned, considering the immigration position is part of the planning.

Risk management: keep documents, maintain contact with UKVI through changes of address, comply with visa conditions, build a clean record. Issues that arise during the visa years are easier to address proactively than at the settlement application.

Backup routes: where the primary route encounters difficulties, alternative routes provide options. Skilled Worker holders can consider Global Talent, family route, Innovator Founder depending on circumstances. Long Residence (10 years) provides a backup settlement path.

Future return scenarios: where the applicant may return to the country of origin or move elsewhere, planning preserves options. Maintaining country-of-origin ties, financial records, and qualifications supports future flexibility.

Disclaimer

This article provides general information about UK tax rules and is not personal tax advice. Cross-border tax treatment depends on individual circumstances, residence status and any applicable double-taxation treaty. HMRC guidance changes; readers should check the current GOV.UK manuals and consider taking advice from a qualified tax adviser.

Frequently asked questions

Do I have to pay UK tax on selling my UK property if I live abroad?

Yes, on gains arising since April 2015 (residential property) or April 2019 (all UK land and property). Non-Resident Capital Gains Tax applies. A return must be filed within 60 days of completion.

How is Non-Resident CGT calculated?

Three methods: rebasing to April 2015 (residential) or April 2019 (all property), time apportionment, or straight-line. For most sellers, rebasing is the simplest and often the most favourable. The chosen method is reported on the return.

Can I claim Principal Private Residence relief as a non-resident?

Yes, but with restrictions. The seller must have spent at least 90 midnights at the property in the tax year of disposal, or the property must have been the only or main residence. The 90-midnights test is more demanding than for residents.

How long do I have to file the Non-Resident CGT return?

60 days from completion (sale completion, not exchange). The return is filed online via HMRC. Late filing triggers penalties even where there is no tax to pay (e.g. a loss).

Will I be taxed twice on the gain by my new country?

Possibly, but the Double Taxation Treaty between the UK and the new country usually allocates taxing rights and provides credit for UK tax. Specialist cross-border tax advice is normal for property sales straddling residence changes.

Frequently asked questions

Do I have to pay UK tax on selling my UK property if I live abroad?

Yes, on gains arising since April 2015 (residential property) or April 2019 (all UK land and property). Non-Resident Capital Gains Tax applies. A return must be filed within 60 days of completion.

How is Non-Resident CGT calculated?

Three methods: rebasing to April 2015 (residential) or April 2019 (all property), time apportionment, or straight-line. For most sellers, rebasing is the simplest and often the most favourable. The chosen method is reported on the return.

Can I claim Principal Private Residence relief as a non-resident?

Yes, but with restrictions. The seller must have spent at least 90 midnights at the property in the tax year of disposal, or the property must have been the only or main residence. The 90-midnights test is more demanding than for residents.

How long do I have to file the Non-Resident CGT return?

60 days from completion (sale completion, not exchange). The return is filed online via HMRC. Late filing triggers penalties even where there is no tax to pay (e.g. a loss).

Will I be taxed twice on the gain by my new country?

Possibly, but the Double Taxation Treaty between the UK and the new country usually allocates taxing rights and provides credit for UK tax. Specialist cross-border tax advice is normal for property sales straddling residence changes.