Working in the UK as a Foreign National: HMRC Tax Guide

Moving to the United Kingdom for employment can create tax obligations before you have fully settled, opened a UK bank account or understood how the British tax year works.

Your employer may deduct tax through PAYE, but that does not necessarily settle your complete UK tax position. Foreign salary, overseas investments, rental property, share awards or business income may also need to be considered.

The most important point is that HMRC does not decide your tax liability simply from your nationality, citizenship or visa. It examines your UK tax residence, where your work is performed, what income and gains you receive and whether any international tax relief applies.

Understanding your UK tax obligations foreign national workers face can prevent unpaid tax, duplicate taxation and penalties arising several years after arrival.

Immigration Status and Tax Residence Are Different

Your immigration position determines whether you are legally permitted to live and work in the UK. Your tax residence determines how the UK taxes your income and gains.

These are related aspects of moving internationally, but they are not the same legal test.

Having a Skilled Worker visa does not automatically make you UK tax resident. Equally, spending only part of the year in the UK does not guarantee non-resident status.

HMRC applies the Statutory Residence Test separately to each UK tax year, which runs from 6 April to the following 5 April.

You should therefore avoid relying on the expiry date shown on your visa or the number of days permitted by your immigration conditions when deciding your tax position.

Your First Question: Are You UK Tax Resident?

Your residence status is the foundation of your UK tax calculation.

A non-UK resident is generally taxed on UK income, including earnings relating to work physically performed in the UK. A UK resident is normally taxed on worldwide income and gains unless a specific relief applies.

The Statutory Residence Test contains automatic overseas tests, automatic UK tests and a sufficient-ties test.

Spending 183 days or more in the UK during a tax year will normally make you UK resident. However, this is not the only way residence can arise. Having a UK home or working full-time in the country may also produce UK residence with fewer than 183 days.

Where none of the automatic tests gives an answer, HMRC examines UK connections such as family, accommodation, work and previous days spent in the country.

HMRC’s current Statutory Residence Test guidance confirms that every tax year must be considered separately.

Why Counting Days Is More Complicated Than It Appears

A UK day is generally counted according to whether you are present in the country at midnight, but the residence rules contain exceptions and additional deeming provisions.

Workdays can also matter independently of midnight presence. For some tests, a UK workday is a day on which more than three hours of work is performed in the country.

This means someone can fly into the UK in the morning, work all day and leave before midnight. The day may not count in the ordinary midnight total, but it may still be relevant when examining working patterns.

Travel calendars should record arrival and departure times, locations, reasons for travel and hours worked. Passport stamps alone may not show every movement, particularly when electronic border gates are used.

Does Split-Year Treatment Apply When You Arrive?

The UK tax year does not automatically begin on the day you land.

Without split-year treatment, somebody who becomes UK resident may be treated as resident for the entire tax year, including the period before their physical arrival.

Split-year treatment can divide a qualifying year into an overseas part and a UK part. For many purposes, the individual is taxed as a non-resident during the overseas part and as a resident during the UK part.

However, split-year treatment is not automatically available to every person who arrives midway through the year. The individual must satisfy one of the specified statutory cases and all the conditions attached to it.

HMRC’s residence and split-year guidance explains that the treatment is subject to conditions and may not apply where someone was abroad for less than a complete tax year before returning.

The date on which the UK part begins can have a major effect on foreign salary, investment income and gains realised shortly before arrival.

UK Employment Income and PAYE

Most employees working for a UK employer will pay Income Tax and National Insurance through PAYE.

The employer calculates deductions, reports the payment to HMRC and shows the figures on the employee’s payslip. At the end of the tax year, the employee should receive a P60 showing total pay and tax deducted.

PAYE is a collection system. It does not necessarily confirm that the employee’s final tax liability is correct.

A foreign national may have an incorrect tax code, overseas income, more than one employment or relief that has not been reflected through payroll. These issues can produce additional tax or a refund after the year ends.

Employees should check their tax code and estimated income through their HMRC account. HMRC’s current Income Tax service allows taxpayers to review employment details, estimated income and tax-code information.

Complete the Starter Checklist Carefully

A newly arrived employee will often have no UK P45. The employer will therefore use HMRC’s starter checklist to establish the initial tax code and payroll declaration.

The employee must state whether this is their first job since the beginning of the tax year, whether they have another job or pension and whether certain student-loan circumstances apply.

Selecting the wrong statement can result in too much or too little tax being deducted.

HMRC’s starter-checklist guidance is specifically intended for employees beginning a job without a P45.

Do not assume that an incorrect first payslip will automatically correct itself. Check the tax code immediately and ask the employer or HMRC to investigate any discrepancy.

Apply for a National Insurance Number

A National Insurance number ensures that employment and contribution records are connected to the correct person.

You can apply if you live in the UK, have the right to work and are working, seeking work or have an employment offer. Some individuals may already have been allocated a number through their immigration documentation.

You can begin employment before receiving the number, provided you can prove that you have the legal right to work. A National Insurance number is not itself evidence of that right.

The official National Insurance number application guidance explains the current eligibility requirements.

Once issued, provide the correct number to your employer and check that your name and date of birth match the details held by HMRC. Inconsistent personal information can cause payroll records to be duplicated or contributions to be allocated incorrectly.

National Insurance Does Not Always Follow the Income Tax Position

Income Tax and National Insurance are governed by different rules.

Someone may be subject to UK Income Tax but temporarily remain covered by the social-security system of another country. Alternatively, UK National Insurance may become payable even where a treaty changes part of the Income Tax treatment.

Employees sent temporarily to the UK may remain insured in their home country where the UK has an applicable social-security agreement and the required certificate of coverage is obtained.

For workers arriving from countries outside the relevant agreement network, a limited 52-week National Insurance exemption may apply where all statutory conditions are satisfied. The individual must normally have been working abroad for a foreign employer, remain employed by that employer and have been sent temporarily to work in the UK.

HMRC’s guidance for employees arriving from abroad explains the PAYE and National Insurance requirements.

An employer should not apply an exemption merely because an employee has an overseas passport or remains on a foreign employment contract.

Being Paid Abroad Does Not Prevent UK Tax

A common mistake is assuming that salary paid into an overseas bank account cannot be taxed in the UK.

HMRC considers where the employment duties are performed and the employee’s tax residence. The location of the bank account or payroll department does not determine the answer.

A non-resident employee can still be liable to UK tax on salary relating to duties performed in the UK. A UK-resident employee will normally be taxed on employment income more broadly, subject to available reliefs.

The current HMRC guidance for globally mobile employees confirms that non-resident employees can be taxable on earnings connected with UK duties.

If you continue working remotely for a foreign employer after moving to Britain, the employer may also acquire UK payroll obligations. Where no employer or UK organisation operates PAYE, the employee may sometimes need a direct-payment arrangement with HMRC.

Remote working from a UK home should never be treated as tax-free merely because the employment contract and salary remain overseas.

Short-Term Business Visitors and the 183-Day Myth

Many international employees believe that working in the UK for fewer than 183 days automatically prevents UK tax.

That is incorrect.

A double-taxation agreement may provide employment-income relief where several conditions are satisfied. These commonly consider the employee’s treaty residence, length of UK presence, identity of the employer and whether the remuneration is borne by a UK permanent establishment.

Failing one condition may leave the salary relating to UK duties taxable here even where the individual spends considerably fewer than 183 days in the country.

PAYE can also apply from the first UK workday unless the employer has an appropriate Short-Term Business Visitor arrangement or another authorised payroll treatment.

HMRC states that employers must normally operate PAYE for short-term business visitors unless an applicable Short-Term Business Visitor arrangement is in place.

The individual and employer should therefore review the position before UK duties begin—not after HMRC requests travel and payroll records.

UK Residents Normally Report Worldwide Income

From 6 April 2025, UK residents are generally taxed on their worldwide income and gains as they arise unless they claim an available relief.

Worldwide income can include overseas salary, foreign bank interest, dividends, rental profits, pensions, business income and income from trusts or estates.

Worldwide gains can arise from selling overseas shares, cryptocurrency, investments, land or property.

The fact that money remains abroad does not ordinarily prevent UK taxation. Neither does receiving the income in a foreign currency or holding it through an overseas financial institution.

HMRC’s foreign-income guidance confirms that UK residents normally pay UK tax on foreign income unless Foreign Income and Gains relief applies.

The Old Non-Domiciled Rules Have Changed

Before 6 April 2025, certain UK-resident individuals whose permanent home or domicile was overseas could claim the remittance basis.

The remittance-basis regime was abolished for new foreign income and gains from 6 April 2025. It was replaced by a residence-based four-year Foreign Income and Gains regime.

This means advice based solely on someone being “non-domiciled” may now be outdated.

From 6 April 2025, UK residents are generally taxed on worldwide income and gains as they arise. An eligible qualifying new resident may instead claim relief under the new FIG regime.

Funds representing income or gains from periods before 6 April 2025 can remain subject to historic remittance rules when brought to the UK. Transitional relief may sometimes be available, but mixed bank accounts and historic funds require careful analysis.

Who Can Claim the Four-Year FIG Regime?

The FIG regime can provide relief on qualifying foreign income and gains during the first four tax years of UK residence.

To qualify as a new resident, the individual must generally have been non-UK resident throughout the ten consecutive tax years immediately before their first qualifying UK-resident year.

Eligibility depends on residence history rather than nationality or domicile.

A separate claim is required through Self Assessment for each year in which the individual wants relief. The taxpayer may choose the qualifying foreign income or gains for which relief is claimed.

HMRC’s FIG eligibility guidance explains how the four-year period operates, including where UK residence began shortly before the regime was introduced.

The four-year clock is based on tax years. Leaving the UK temporarily does not restart it, so an individual may lose the practical benefit of a year within the qualifying window.

A FIG Claim Is Not Automatically Beneficial

The relief can be extremely valuable, but it carries important consequences.

An individual making a FIG claim loses their Personal Allowance and Capital Gains Tax annual exempt amount for that year. They may also lose the ability to use certain foreign income and capital losses.

The effect applies even where the claim relates only to selected foreign income, foreign gains or Overseas Workday Relief.

HMRC’s 2026 FIG helpsheet confirms the loss of the Personal Allowance, CGT annual exempt amount and specified foreign losses.

Someone with £2,000 of foreign interest should not assume that claiming FIG relief will improve their position. The tax saved on that interest may be smaller than the tax cost of losing their allowances.

The calculation should be completed before the claim is submitted.

Overseas Workday Relief

A qualifying new resident who performs employment duties both inside and outside the UK may be eligible for Overseas Workday Relief.

From 6 April 2025, OWR can provide relief on qualifying earnings relating to duties performed abroad during the individual’s first four years of UK residence, provided the relevant conditions are met.

The relief is currently limited to the lower of £300,000 or 30% of the individual’s total qualifying employment income.

Unlike the former regime, relieved income arising after 6 April 2025 does not have to remain in an overseas bank account.

Workday allocation must be supported by reliable evidence. Travel diaries, calendars, flight records, hotel invoices and employment records should show where the duties were physically performed.

HMRC explains the current rules in its Overseas Workday Relief guidance.

Because claiming OWR can also affect personal allowances, the full tax result must be reviewed.

Foreign Rental Income Must Not Be Ignored

Keeping a house or flat in your home country can create a UK reporting obligation once you become UK resident.

The UK normally taxes the profit from foreign property rather than simply the rent received. Allowable expenses may include certain repairs, agent fees, insurance and other qualifying costs.

The foreign country may also tax the rental income because the property is located there. Relief may then be available in the UK for qualifying foreign tax.

Keep rental agreements, agent statements, invoices, mortgage information and foreign tax assessments. UK rules determine which expenses are deductible for the UK return, so the overseas calculation should not be copied without review.

Foreign Bank Interest and Dividends

Interest earned on an overseas savings account can be taxable in the UK even if it is automatically reinvested or never transferred to Britain.

Foreign dividends can also require reporting. The UK tax treatment may differ from the treatment used by the country in which the company is located.

Foreign institutions may deduct withholding tax before paying the income. The gross income and tax withheld should be established rather than reporting only the amount received into the bank.

Under international information-sharing arrangements, HMRC may receive financial-account data from overseas tax authorities. Assuming that a small foreign account is invisible creates unnecessary compliance risk.

Foreign Pensions and Retirement Accounts

A pension paid from another country may be taxable in the UK if the recipient is UK resident.

The applicable double-taxation agreement may give taxing rights to the UK, the source country or both. Government-service pensions can have different treaty treatment from private occupational pensions.

Lump sums, overseas retirement accounts and employer contributions may also be treated differently from ordinary monthly pension income.

Before withdrawing or transferring a foreign pension, obtain advice covering both countries. A payment treated as tax-free abroad is not automatically tax-free in the UK.

Overseas Investments and Capital Gains

A UK resident may be liable to Capital Gains Tax when selling overseas shares, funds, cryptocurrency or property.

The gain is calculated under UK rules and converted into sterling. Exchange-rate movements can therefore create a UK gain even where the asset produced little or no profit in its original currency.

Foreign collective investments can also have special UK tax classifications. Income or gains from an overseas fund should not be reported merely according to the label used by the foreign bank.

Disposals made before UK arrival may fall outside the normal UK charge where valid split-year treatment applies, but the precise dates and conditions must be reviewed.

Double Taxation Does Not Mean Paying Everything Twice

The same income may initially be taxable in both the UK and another country.

A double-taxation agreement can determine which country has primary taxing rights and how the other country should provide relief. Where the income remains taxable in both jurisdictions, Foreign Tax Credit Relief may reduce the UK liability.

The credit is not necessarily equal to all tax paid overseas. It is generally restricted according to the treaty and the UK tax attributable to that income.

HMRC’s double-taxation guidance explains that relief usually depends on the relevant agreement and the nature of the foreign tax.

Foreign tax should not simply be deducted from income as an expense. The gross income, foreign tax and relief claim must be reported in the appropriate way.

Do You Need to Submit a Self Assessment Tax Return?

Employment under PAYE does not automatically remove the need for Self Assessment.

A UK resident with foreign income or gains will commonly need to file a return and complete the foreign supplementary pages. Self Assessment may also be required for self-employment, property income, significant investment income, capital gains or relief claims.

A FIG or Overseas Workday Relief claim requires appropriate reporting through Self Assessment.

HMRC’s foreign-income reporting guidance states that UK residents with foreign income or capital gains will usually need to submit a tax return.

There are limited exceptions. For example, a taxpayer whose only foreign income is dividends may not need a return where their total UK and overseas dividends remain within the applicable dividend allowance and no other filing reason exists.

Do not apply a general exception without checking your complete circumstances.

Self Assessment Deadlines

If you need to file for the first time, you should normally notify HMRC by 5 October following the end of the relevant tax year.

The paper-return deadline is normally 31 October, while the online filing and tax-payment deadline is 31 January.

For the tax year ending 5 April 2026, a new taxpayer should normally have registered by 5 October 2026. The online return and balancing payment are due by 31 January 2027.

HMRC confirms the current dates in its Self Assessment deadline guidance.

Registering late does not extend the filing or payment deadlines. Interest and penalties can arise even where PAYE has already collected part of the tax.

Keep Complete International Records

International tax returns require evidence from more than one country and often more than one currency.

Retain employment contracts, payslips, P60s, foreign payroll statements, tax certificates, bank-interest summaries, dividend vouchers, investment statements and property records.

You should also maintain a daily travel and work calendar showing where you were present and where employment duties were performed.

Foreign amounts must be converted into sterling using an appropriate and consistent exchange rate. Keep evidence of the rate used and the calculation performed.

Records should be preserved for the required period after filing. If HMRC opens an enquiry, the taxpayer must be able to explain both the reported figures and the residence or relief position supporting them.

Common Mistakes Foreign Nationals Make

One of the most dangerous mistakes is assuming that PAYE has settled everything. PAYE normally deals only with the information processed through the employer’s payroll.

Another is treating the 183-day figure as a universal exemption. Residence and treaty relief depend on several conditions, and UK workdays can be taxable even for a non-resident.

Some taxpayers fail to report foreign accounts because the funds remain abroad. Since April 2025, UK residents are generally taxed on worldwide income as it arises unless an available relief is properly claimed.

Others claim the four-year FIG regime without calculating the cost of losing their Personal Allowance and CGT annual exemption.

Finally, individuals sometimes use immigration terminology to determine their tax treatment. A visa, settlement status or foreign passport does not replace the Statutory Residence Test.

How SAS Yorkshire Can Help

International tax should be reviewed from the year of arrival rather than after HMRC raises questions.

SAS Yorkshire can assess your residence position, review whether split-year treatment applies and identify the UK part of your arrival year.

The team can examine UK and overseas employment income, foreign investments, property income, pensions and capital gains. Where appropriate, it can calculate whether a FIG or Overseas Workday Relief claim produces an overall benefit after accounting for lost allowances.

SAS Yorkshire can also prepare Self Assessment returns, claim Foreign Tax Credit Relief and help reconcile foreign tax documents with the amounts required by HMRC.

For individuals paid by overseas employers or working across several countries, the review can include UK workdays, payroll deductions, National Insurance coverage and available treaty relief.

Whether you have moved to Leeds, Batley, Bradford, Wakefield, Huddersfield or another part of the UK, professional international client tax advice can help you meet your obligations without paying more tax than the law requires.

Deal With Your UK Position Before HMRC Contacts You

Working in the UK as a foreign national does not automatically make your tax affairs difficult, but international income should never be left to assumption.

Begin by establishing your residence status and arrival-year treatment. Check your PAYE code, obtain a National Insurance number and identify every source of UK and foreign income.

If relief may be available, calculate its wider consequences before making a claim. Keep a detailed travel calendar and retain evidence of overseas income and tax paid.

Most importantly, do not wait until the Self Assessment deadline to investigate several countries, currencies and tax systems.

Contact SAS Yorkshire for a confidential international tax review. The team can establish your UK position, prepare the required disclosures and help you claim the relief available under UK law and applicable tax treaties.

This article provides general information based on rules in force during 2026/27. International tax treatment depends on residence history, work patterns, income sources and the relevant treaty. Immigration advice may require a separately authorised immigration professional.

Frequently Asked Questions

1. Do foreign nationals pay tax on UK employment income?

Yes, salary relating to employment duties performed in the UK will commonly be subject to UK Income Tax. A UK employer will normally deduct tax through PAYE. Non-residence or a double-taxation agreement may provide relief in certain circumstances, but spending fewer than 183 days in the UK does not automatically make the salary tax-free.

2. Do I have to report income from my home country?

If you are UK tax resident, you will normally need to consider your worldwide income, including foreign interest, dividends, rent, pensions and business income. An eligible new resident may claim relief under the four-year FIG regime. Non-residents generally do not pay UK tax on foreign income, although UK-source income can remain taxable.

3. Can I claim the four-year Foreign Income and Gains regime?

You may qualify if you are within your first four tax years of UK residence after at least ten consecutive tax years of non-UK residence. A claim must be made for each relevant year. Claiming relief causes the loss of the Personal Allowance and Capital Gains Tax annual exempt amount, so the financial result should be calculated first.

4. Will a double-taxation agreement stop me paying tax twice?

It may provide exemption, reduced taxation or a credit for foreign tax, depending on the country, type of income and treaty conditions. Relief is not always automatic, and the amount credited in the UK can be limited to the UK tax attributable to that income. The relevant treaty must be reviewed for each income source.

5. Do I need Self Assessment if my employer deducts PAYE?

Possibly. PAYE may deal with your UK salary, but Self Assessment can still be required for foreign income, foreign gains, property income, self-employment or tax-relief claims. FIG and Overseas Workday Relief claims also require appropriate reporting. Your full circumstances must be checked rather than relying only on the payslip.