The 5 year rule for non-residents in the UK plays a crucial role in determining your tax liabilities, especially for expats and former UK residents with ongoing ties to the country.
Whether you’re planning to return, invest, or dispose of UK assets, understanding this rule is essential to avoid unexpected tax consequences.
Here are some of the frequently asked questions we will answer:
- What is the 5 year rule in the UK?
- Do I have to pay tax in the UK if I don’t live there?
- How do you prove you were in the UK exactly 5 years?
- How do I prove I was outside the UK for 5 years?
This article is mainly for people living outside the UK.
If you are looking to invest as an expat or high-net-worth individual, which is what I specialize in, you can email me (hello@adamfayed.com) or WhatsApp (+44-7393-450-837).
This includes if you are looking for a free expat portfolio review service to optimize your investments and identify growth prospects.
Some facts might change from the time of writing. Nothing written here is financial, legal, tax, or any kind of individual advice or a solicitation to invest.
What is the 5 Year CGT Rule in the UK?

The 5 year rule for non-residents in the UK refers to a provision in UK tax law that affects how capital gains tax is applied to former UK residents who sell assets after moving abroad.
Under this rule, if you leave the UK and remain non-resident for at least five full consecutive tax years, you may not be liable for UK CGT on gains made from selling certain assets (such as property or shares) that were owned before your departure.
The five years must be complete UK tax years, running from April 6 to April 5 the following year.
However, if you return to the UK within five years of becoming non-resident, and you sold assets while abroad, HMRC may retroactively apply CGT to those disposals.
In other words, you could be taxed as if you never left.
This rule is especially relevant for individuals who:
- Plan to dispose of UK property or other taxable assets after leaving
- Want to avoid UK CGT while living abroad
- May return to the UK for personal or professional reasons within a few years
The 5 year rule for non-residents in the UK acts as a kind of look-back provision, where your non-residency must meet the minimum time threshold to fully benefit from tax exemptions.
Do You Pay UK Tax if You Are Non-Resident?
Being non-resident in the UK doesn’t necessarily mean you’re free from all UK tax obligations.
While non-residents are generally not taxed on foreign income, certain types of UK-sourced income and gains can still be subject to UK tax.
What Non-Residents Are Still Taxed On:
- UK Rental Income: If you own property in the UK and earn rental income, you must pay UK income tax on those earnings, typically through the Non-Resident Landlord Scheme.
- UK Employment Income: If you’re working in the UK, even temporarily, that income may be taxable in the UK, depending on your residency status and double tax treaty agreements.
- Capital Gains on UK Property: Non-residents are still liable for Capital Gains Tax on the sale of UK residential and commercial property, regardless of how long they’ve lived abroad.
- Pensions and UK Investments: Income from UK-based pensions or certain investments may be taxed in the UK, though tax treaties may reduce or eliminate this burden.
Key Considerations:
- The Statutory Residence Test (SRT) determines your residency status for tax purposes. It considers days spent in the UK, your ties to the country, and your work patterns.
- Even if you’re classified as non-resident, you may need to file a UK Self Assessment tax return if you receive taxable UK income.
How Long Can You Be in the UK as a Non-Resident?
To maintain non-resident status in the UK, there are specific limits on how many days you can spend in the country each tax year.
These limits are defined under the Statutory Residence Test and are crucial for anyone trying to avoid becoming a UK tax resident.
What is the threshold for tax residency in the UK?
The exact number of days you can spend in the UK as a non-resident depends on your connections to the UK, known as “ties.”
However, the general thresholds are:
- Fewer than 16 days: You’re automatically non-resident if you were UK resident in one or more of the previous three tax years.
- Fewer than 46 days: You’re automatically non-resident if you were non-resident in all of the previous three tax years.
- 46 to 183 days: Your residency status depends on the number of ties you have (such as family, accommodation, or previous UK work history).
- 184 days or more: You’re automatically considered a UK resident for tax purposes.
Frequent Visits or Business Trips
Short, frequent trips to the UK can add up and unintentionally affect your residency status.
Even staying just a few weeks multiple times a year could push you over the day-count threshold, especially if you have strong ties to the UK.
Business travelers, digital nomads, and expats visiting family should track their UK visits carefully each tax year (April 6 to April 5) to avoid becoming inadvertently tax-resident.
What Happens After 5 Years Stay Outside the UK?
Once you’ve successfully spent five consecutive UK tax years as a non-resident, significant tax implications come into play, especially regarding CGT and your broader UK tax exposure.
1. CGT Exemptions May Apply
After meeting the 5-year threshold in the 5 year rule for non-residents in the UK, any gains from the disposal of UK assets made while you were non-resident generally won’t be subject to CGT.
This makes the timing of asset sales particularly important for expats and non-residents looking to exit UK property or investments.
2. You May Reset Your UK Tax Residency Clock
Completing the 5-year period may allow you to reset your UK tax residency status.
If you later return to the UK, you may be treated as a new resident for tax purposes. This could impact how offshore income and gains are taxed upon return.
3. Renewed Consideration of the SRT
If you re-enter the UK after 5 years, you’ll be reassessed under the SRT. The criteria will determine whether your new UK presence triggers tax residency again.
At that point, all worldwide income and gains could become taxable in the UK.
4. Planning Becomes Crucial
After the 5-year period in the 5 year rule in the UK, careful tax planning becomes essential, especially for high-net-worth individuals, business owners, and property investors.
Any return to the UK should be preceded by strategic reviews of asset ownership, income streams, and estate plans.
How Do You Prove You Were Outside the UK for 5 Years?
HMRC requires clear and consistent proof to confirm your non-resident status and to apply CGT exemptions correctly.
Accepted documentation includes:
- Passport stamps and travel history: These show entry and exit dates and help HMRC verify how many days you spent in the UK each year.
- Flight tickets and boarding passes: These provide extra proof of travel patterns and timelines.
- Residency permits or visas from another country: These help establish your primary residence during the non-resident period.
- Foreign tax returns or employment records: These indicate your ties to another tax jurisdiction.
- Utility bills, rental agreements, or bank statements abroad: These help confirm your daily living abroad.
HMRC may challenge your non-resident claim, especially if there are signs of close ties to the UK.
Clear documentation protects you from unexpected tax liabilities and supports your eligibility for CGT relief under the 5 year rule in the UK.
It also strengthens your position in any formal residence or tax investigations.
Key Considerations for Expats and Non-Residents
Here are some key takeaways:
- Strategic tax planning is essential: If you’re considering selling UK assets, such as property or shares, understanding when your non-resident status resets your capital gains tax liability can lead to significant savings.
- Timing matters: Exiting investments or returning to the UK before completing the 5-year non-residency period could trigger unexpected tax bills.
- Maintain documentation: Accurate records of your time spent outside the UK are critical to proving non-residency and benefiting from the rule.
- Reentry planning: If you plan to return to the UK after five years, prepare for a fresh assessment under the Statutory Residence Test and potential changes in tax treatment.
Working with a financial advisor experienced in UK tax for expats can help you navigate the complexities and align your moves with long-term goals.
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Adam is an internationally recognised author on financial matters with over 830million answer views on Quora, a widely sold book on Amazon, and a contributor on Forbes.