Overseas income, foreign tax and UK filing
Foreign Income Tax Return Accountant in Cardiff
We establish the UK residence position, identify each overseas income source and reconcile foreign tax before preparing the relevant Self Assessment pages. The work is completed country by country and source by source, with the UK tax year, currency conversion and available relief documented.
For people who have moved to or from the UK, overseas landlords, professionals, pension recipients, investors and internationally connected families.
The first question is residence
Does foreign income need to go on a UK tax return?
A UK resident is generally taxed on worldwide income and gains unless a specific relief or treaty treatment applies. A non-UK resident is usually outside UK tax on foreign income, while UK-source income can remain reportable.
Where someone arrives or leaves during the year, the Statutory Residence Test and any split-year treatment must be established before deciding what enters the return.
Check the official foreign-income overview ↗Worldwide income is the normal starting point
Foreign rent, pensions, dividends, interest, employment and gains can be taxable even when the money remains overseas.
The four-year FIG regime may be available
Eligibility depends on the first UK-resident years after at least ten consecutive years of non-UK residence, and relief must be claimed.
One tax year can contain different residence periods
Split-year treatment is not automatic. The relevant case and dates must be supported before income is excluded.
UK-source income can still require filing
UK property, work performed in the UK, pensions, gains and treaty claims each follow their own rules.
Overseas tax does not automatically remove UK reporting
The same income may still be declared, with Foreign Tax Credit Relief calculated under UK law and the relevant treaty.
The work behind SA106
What our foreign income tax return service includes
The foreign pages are not a single total for money received abroad. Each source is classified, converted and connected to the correct relief claim and supplementary pages.
Residence and filing-scope review
We identify the tax year, residence outcome, arrival or departure issues, countries involved and return sections required.
Country and income-source schedule
Property, pensions, employment, dividends, interest, business income, trusts and gains are separated under their UK tax treatment.
Sterling conversion and UK-year allocation
Income and foreign tax are mapped from overseas statements and tax periods to the UK tax year using appropriate exchange rates.
Foreign tax and treaty review
We examine withholding certificates, overseas returns and treaty limits before calculating any UK foreign tax credit.
SA106, SA109 and connected pages
Foreign, residence, employment, property, capital-gains or trust pages are completed where the nature of the item requires them.
Draft, approval and online filing
You receive the return, supporting calculation and payment position for approval before submission.
You receive the filed return, foreign-income schedule, tax calculation and payment summary.
How the fee is scoped →Country by country, source by source
How overseas income becomes a UK return figure
The amount credited to a UK bank account is not necessarily the taxable figure. Gross income, foreign deductions, withholding tax, payment dates and the source country need to be reconstructed first.
The overseas tax year may not match 6 April to 5 April. Statements must therefore be allocated to the UK year rather than copied wholesale from a foreign return.
- IdentifyThe legal source and countryWhere the account sits is not always where income legally arises.
- MeasureGross income before foreign deductionsNet bank receipts can conceal withholding tax and charges.
- AllocateThe correct UK tax yearPayment and accrual rules depend on the source and accounting basis.
- ConvertForeign currency into sterlingConsistent and supportable exchange rates are applied to income and tax.
- ReviewForeign tax, treaty and UK reliefCredit is not automatically equal to the full overseas amount.
- ReportThe correct Self Assessment pagesThe final entries reconcile to the country schedule and evidence.
Different income, different treatment
UK tax returns for overseas property, pensions and investments
The country label does not decide the tax treatment. We establish what produced the income, who owns it and where the underlying activity took place.
Rental income from property outside the UK
Gross rent, local expenses, ownership, foreign tax and losses are calculated as a separate overseas property business.
Foreign pensions and social-security income
The pension type, country, recipient, payment history and treaty article determine whether and how the income is taxed.
Foreign dividends, bank interest and offshore funds
Gross distributions, withholding tax and fund reporting status may affect whether the return shows income or a different form of gain.
Overseas employment, duties and freelance income
Income paid from abroad is not automatically foreign-source. Where the work was physically performed and the legal nature of the engagement matter.
Foreign property, shares and other asset disposals
UK-resident taxpayers may need to calculate gains in sterling even where no money enters the UK and the overseas return uses another basis.
Foreign trusts, estates, companies and offshore policies
Distributions and benefits can require specialist classification and connected pages; the label used by the overseas institution is not conclusive.
Overseas property business
Separate from UK rental property when calculating profits and carrying forward losses How foreign income is taxed ↗Foreign rental income
An overseas property return needs both the local records and the UK calculation
We rebuild gross rent and allowable property expenses in sterling, check ownership and identify tax paid to the overseas authority. A local taxable profit cannot simply be copied where the country uses different deductions, depreciation or tax-year dates.
Foreign property losses remain within the overseas property business and are not combined with UK property losses. If the property is sold, the income schedule ends separately from the Capital Gains Tax calculation.
Taxed in two countries
Foreign Tax Credit Relief is calculated, not assumed
When the same income is taxable overseas and in the UK, relief may be available under a double-taxation agreement or UK unilateral rules. The amount is normally restricted to the lower permitted foreign tax and the UK tax attributable to that income.
If the treaty limits the source country’s tax, credit may be restricted to that treaty amount; excess foreign tax may need to be reclaimed overseas. The income is still normally reported gross in the UK return.
Read about relief where income is taxed twice ↗Confirm who has taxing rights
The treaty article is matched to the exact income type, residence position and taxpayer.
Verify foreign tax paid
Withholding certificates and overseas assessments distinguish final tax from refundable deductions.
Calculate the UK limitation
The UK credit is tested source by source and can be less than the foreign amount.
Enter income and relief consistently
The SA106 claim, main calculation and supporting country schedule must reconcile.
Regime from 6 April 2025
The four-year Foreign Income and Gains regime is a claim with consequences
A qualifying new UK resident can claim relief on eligible foreign income and gains during their first four UK-resident tax years following at least ten consecutive tax years of non-UK residence.
Relief is claimed for specified amounts and sources through the relevant return pages. A claimant loses the Personal Allowance, Capital Gains Tax annual exempt amount and certain other allowances for that year, so eligibility alone does not establish that a claim is beneficial.
Check the official four-year FIG conditions ↗Confirm the ten-year non-residence history and exactly which of the first four UK-resident years remain.
Identify each amount of eligible foreign income or gain for which relief will be claimed.
Model the effect of losing personal and CGT allowances and connected reliefs for the claim year.
Foreign earnings do not fall automatically within FIG relief; Overseas Workday Relief has separate conditions.
SA109 establishes the claim while the relevant foreign, trading, trust or gains pages report relieved amounts.
Eligible income and gains relieved under the FIG regime can generally be brought to the UK without a later tax charge.
Income and gains from before April 2025
Historic remittance-basis funds remain a separate record
The remittance basis ended for new income and gains from 6 April 2025, but untaxed foreign income and gains from earlier remittance-basis years can still create a UK charge when money or assets are brought to or used in the UK.
The Temporary Repatriation Facility can allow qualifying former remittance-basis users to designate eligible pre-6 April 2025 amounts through Self Assessment. The source history and mixed-fund evidence should be reviewed before money is moved.
Current Temporary Repatriation Facility rates ↗On qualifying overseas capital designated in the return.
The second year of the facility and the current tax year.
The final scheduled year, subject to the statutory conditions.
Designation and remittance are different steps. The amount, source and supporting records must be identified before a return claim is made.
Cardiff and South East Wales
International income often sits beside an ordinary UK working life
A Cardiff resident may have PAYE employment here while retaining property, pensions, investments or family interests overseas. The UK return must connect both parts without treating every foreign payment in the same way.
Employment may begin partway through a tax year while overseas interest, investments or property continue. Residence, split-year and FIG eligibility should be resolved before the income pages.
The local property return may use a calendar year, depreciation or deductions that do not transfer directly to the UK overseas-property calculation.
Government service, social security and private pensions can fall under different treaty provisions even when paid from the same country.
Foreign dividends, share awards, offshore funds and disposal proceeds must be distinguished from salary or business receipts and converted on the correct dates.
2025/26 filing cycle
Foreign income Self Assessment deadlines
The current return covers the UK tax year from 6 April 2025 to 5 April 2026. Overseas statements using calendar or other fiscal years must be mapped into that period.
Check current Self Assessment deadlines ↗Register if a first return is required
Relevant where 2025/26 foreign income created a new Self Assessment obligation.
Paper return deadline
Residence pages cannot be filed through HMRC’s basic online service, but commercial software can support an online return.
Online return and balancing payment
The first payment on account for 2026/27 may also arise on this date.
Second payment on account
Applies where payments on account are due for the following tax year.
Build the country file
Records needed for a foreign income tax return
Send source documents rather than only the figure from an overseas return. UK treatment may require gross income, payment dates and withholding details that a foreign assessment does not show.
Dates and connections
- Arrival and departure dates
- UK and overseas day records
- Homes, work and family connections
- Earlier UK residence history
Source statements
- Bank and investment statements
- Pension certificates
- Employment or business records
- Overseas rental schedules
Tax and treaty evidence
- Withholding certificates
- Foreign tax returns and assessments
- Payment and refund evidence
- Residence certificates or treaty claims
Historic and asset records
- Previous UK tax returns
- Remittance-basis claims
- Mixed-fund bank history
- Purchase and disposal documents
Each source is recorded in its original currency and in sterling, with the exchange-rate method retained alongside the final calculation.
From overseas records to filing
How we prepare a foreign income tax return
The process is designed to resolve residence and source questions before figures are entered into the return.
- Step 01
Confirm residence and scope
We establish the tax year, countries, arrival or departure issues and filing obligations.
- Step 02
Prepare the country schedules
Gross income, foreign tax, dates and currency conversion are reconciled by source.
- Step 03
Calculate relief and UK tax
Treaty treatment, tax credits, FIG claims and connected allowances are reviewed.
- Step 04
Approve and file the return
You review the return, schedules and payment position before submission.
Foreign income was not reported
Review the overseas history before making a disclosure
Not every overseas payment creates the same liability. We establish residence, income sources, foreign tax and earlier returns year by year before determining whether amendments, returns or a formal disclosure are needed.
Explain the earlier years →Identify years and countries
Residence and source records determine what falls within UK tax for each year.
Calculate gross income and foreign tax
Statements, local returns and withholding certificates are reconciled before estimates are used.
Apply the law for that year
Pre-2025 remittance-basis rules cannot be replaced with the newer FIG regime.
Use the appropriate HMRC route
The Worldwide Disclosure Facility, return amendments or another route may apply depending on the facts.
A quote based on the international work
What affects a foreign income tax return fee?
One overseas bank account with complete statements is different from several countries, a residence review or historic remittance-basis funds. We agree scope once the sources and tax years are known.
Read how our fees are agreed →Each property, pension, investment, business or gain needs its own evidence trail.
Arrival, departure, split-year, treaty residence and FIG eligibility add analysis.
Complete statements and withholding certificates reduce reconstruction work.
Relief claims may require treaty limits, overseas returns and country calculations.
Remittance-basis, mixed-fund and TRF work is scoped separately from annual filing.
Amendments or disclosures depend on the number of years and missing records.
Foreign income questions
Questions clients ask before filing
These answers give the normal starting point. Residence, source, treaty wording and the relevant tax year can change the position.
Do UK residents have to declare foreign income?
Usually, yes. UK residence generally brings worldwide income and gains into the UK tax calculation. The four-year FIG regime, split-year treatment, a treaty or another specific relief may change the taxable result, but these provisions require their own conditions and return entries.
Do I report foreign income if tax was already paid overseas?
Normally, yes. The income is usually reported gross and the foreign tax is considered separately. Foreign Tax Credit Relief can reduce double taxation, but the credit may be limited by the treaty and the UK tax attributable to that source.
Is money earned from a foreign client always foreign income?
No. The customer’s location or payment currency does not decide the source. Consultancy or employment work physically performed in the UK can be UK-source even when the payer and bank account are overseas.
Which exchange rate should I use?
The appropriate rate depends on the source and timing. Transaction-date rates are often used, while a consistent average rate may be reasonable for regular income where it produces a fair result. Foreign tax and income should be converted on a compatible basis and the method retained.
What is the four-year FIG regime?
It is a claim-based relief available to qualifying new UK residents during their first four UK-resident tax years after at least ten consecutive non-UK-resident years. Relief can cover eligible foreign income and gains, but claiming removes the Personal Allowance, CGT annual exemption and certain other allowances for that year.
Does SA106 deal with UK residence?
Not by itself. SA106 reports many forms of foreign income and foreign tax relief. Residence, split-year, FIG and historic remittance-basis matters normally require SA109, while employment, gains, trusts or business income may also require their own pages.
How is overseas rental income reported?
Gross foreign rent and allowable expenses are calculated under UK property-income rules in sterling. Foreign tax is reviewed separately for credit relief. The overseas property business and its losses remain separate from UK rental property.
Are foreign pensions taxable in the UK?
They can be. The result depends on UK residence, the pension type and the relevant treaty. Government service, social-security and private pensions may have different taxing rights, so the country name alone is insufficient.
What if earlier foreign income was not declared?
The residence and liability should be calculated for each year before contacting HMRC. Depending on the years and circumstances, the correction may use an amended return, outstanding returns, the Worldwide Disclosure Facility or another disclosure route.
One source or several countries
Start with the country, income type and residence dates
We will identify the calculations, relief claims and return pages required before providing a scoped quote.
. Residence, treaty and relief positions are confirmed for the specific tax year and countries involved.