Moving to France after Brexit does not end the UK tax life of a house or flat that you still rent out in Britain. It creates a two-country filing problem: the United Kingdom looks at the property as UK-source income, while France looks first at your tax residence and then applies the France–UK double-tax treaty. The result is often a declaration in both countries, but not necessarily two full taxes on the same rent.

This article addresses a British individual who lives in France and receives rent from UK property. It does not deal with buying a property in France, which belongs to the property desk, or setting up a company. The key questions are practical: whether French tax residence requires a declaration, which country has the first taxing right, how the Non-resident Landlord Scheme works, which French and UK forms are relevant, and what to do if an agent has withheld tax or a return was missed.

For the wider settlement sequence, read the existing first-year legal checklist for moving from the UK to France after Brexit, then use this article for the narrower rental-income question.

The answer depends on the exact residence facts, whether the property is furnished, how it is owned, the UK tax year concerned, and the wording of the treaty relief claimed. A residence card, a 183-day calculation, or a bank transfer into France does not by itself decide the whole position. The safe approach is to build one evidence file, reconcile the same rent in sterling and euros, and make the treaty mechanism visible in both returns.

I. UK rental income after Brexit: do you declare it in France and where is it taxed?

A. Do British owners living in France have to report UK rent?

The starting point is your domicile fiscal, meaning your French tax residence. French domestic law looks at your household, your principal stay, your professional activity and the centre of your economic interests. Article 4 B of the French General Tax Code begins with the rule that people are treated as French tax residents when they have their home in France: « Sont considérées comme ayant leur domicile fiscal en France les personnes qui ont en France leur foyer ». The wording is part of the legal test, not a simple nationality test. You can be British, hold a Brexit residence document and still be French tax resident; equally, owning or renting a French home does not automatically settle the question without examining the complete facts. Read the current text of Article 4 B of the Code général des impôts before classifying a year.

The France–UK treaty then matters if both countries could regard you as resident. Article 4 contains tie-breaker criteria. The French treaty text refers first to the « foyer d’habitation permanent », or permanent home, and then to personal and economic relations, habitual abode and nationality if the earlier tests do not resolve the issue. Those terms are French legal expressions for a treaty residence analysis, not a replacement for the domestic tests. A person who spends part of the year in both countries should keep a calendar of nights, travel, work, family presence, available homes and business links. HM Revenue and Customs uses its own residence framework; France uses its domestic rules and the treaty tie-breaker. The two analyses should be compared, not mixed together.

If France is your treaty residence, the normal French filing principle is broad. You disclose income from outside France, even when the income is not ultimately taxed in France because the treaty assigns the taxing right to the United Kingdom. The official Form 2047 page on impots.gouv.fr states that the form is required when a person domiciled in France has received income outside metropolitan France and the French overseas departments, and that it is attached to the general income return. The administration’s current explanation also identifies foreign rents in frame 4 of the 2047 and explains the transfer to the relevant boxes of form 2042. In other words, “the rent is taxed in Britain” is not a sufficient reason to leave it absent from the French file.

There are three different ideas which are often confused:

Tax residence. This asks which country treats you as resident for its domestic law and, if necessary, under the treaty.

Source. This asks where the property and the economic activity producing the rent are located. A house in Manchester, Cardiff, Birmingham or Cornwall remains UK immovable property even if the owner lives near Paris.

Taxing right. This asks which state may impose tax under the treaty, and whether the residence state must grant an exemption or a credit.

The property purchase itself is outside this article. The relevant fact here is the existing UK property and its letting income. A French property tax bill, such as taxe foncière (the annual ownership tax on French property), is also a different subject from rental income. Do not use the tax treatment of French property ownership to complete a UK rental-income return. The cabinet’s separate guide on French property tax for UK owners can be read for that distinct liability.

The form of the letting matters. French tax language calls ordinary income from an unfurnished letting revenus fonciers, meaning income from property let without furniture. A furnished or short-term activity can fall into a business-income category, often described as BIC (bénéfices industriels et commerciaux, or industrial and commercial profits). The UK may use a different classification for the same practical arrangement. A furnished flat, holiday letting, serviced accommodation, multiple properties, a partnership or a trust therefore needs a separate classification review. Do not copy the UK label into the French form without checking the French classification and the current 2047 instructions.

Ownership also affects the declaration. If two people own the property, the rent and allowable amounts generally have to be allocated by the legal ownership or beneficial entitlement. A joint UK return, a bank account receiving all rent, or an agent’s annual statement does not automatically prove that one spouse owns all the income. Keep the purchase deed, land-registry information, trust or partnership documents, loan statements and any agreement governing beneficial shares. If the property is owned through an entity, the personal article may no longer provide the right filing route.

The most useful first-year test is therefore not “Am I British?” but:

• Where was my household and main personal life during the year?
• Where did I spend my time, and what evidence supports that calendar?
• Is France my domestic and treaty residence, or am I still treaty-resident in the UK?
• Is the UK property unfurnished, furnished, short-term, jointly owned or held through a structure?
• Was the rent received by me, by a joint owner, by an agent or through an entity?

Once those questions are answered, the French declaration normally follows the income rather than the nationality. The fact that Brexit changed immigration status does not erase the income reporting rules. It makes the residence, social-security and treaty evidence more important because the old assumption that both countries sit inside one EU administrative environment is no longer reliable.

B. Does the France–UK treaty prevent double taxation?

The treaty’s property rule is found in Article 6. It follows the familiar immovable-property approach: income from land and buildings may be taxed in the state where the property is situated. The official France–UK income and capital-gains treaty published on Légifrance states, in Article 6, that income from immovable property situated in a contracting state is taxable in that state. For a British house rented to tenants, this gives the United Kingdom a treaty basis to tax the rental income even where the owner’s personal residence is now France.

That rule does not mean that the French return can be ignored. The residence state may still require the income to be shown so that it can apply the treaty’s double-tax relief method, preserve the progression of its tax scale, or calculate social levies and other connected liabilities. The French administration explains that foreign property income is commonly exempt in France but declared for the effective-rate method, while some conventions instead provide for French taxation followed by a tax credit. Its official guidance on foreign-source income expressly distinguishes those methods and says the 2047 should be completed first.

The France–UK treaty has its own Article 24 mechanism. The conclusion cannot be drawn from a generic article about Spain, Portugal or the United States. Article 6 identifies the property rule; Article 24 identifies how France removes the resulting double taxation. The precise outcome can depend on whether the income is included in the UK tax base, the type of French levy being considered, and the form of credit stated in the treaty. A tax credit is not the same thing as a refund of every amount withheld by an agent. It is a legal calculation applied to a defined French liability.

A useful judicial reference is the Conseil d’État advisory opinion of 12 February 2020, no. 435907, available through the official Légifrance record. The opinion concerned French residents with UK rental income and the operation of Article 24 for French social contributions. It is a warning against assuming that the absence of effective UK tax automatically destroys all French treaty relief, or that every French levy follows the same calculation as income tax. The evidence must show how the income was treated in the UK tax base and how the French return presents the corresponding credit.

The UK side is also clear about the source state. GOV.UK’s guidance for rental income when living abroad says that UK tax is due on rent from UK property and explains that someone living abroad for six months or more can be classed as a non-resident landlord by HMRC even if they remain UK-resident for another purpose. The Non-resident Landlord Scheme is a collection mechanism: a letting agent or, in some circumstances, a tenant deducts basic-rate tax before paying the landlord. It is not a final treaty calculation.

If HMRC has approved you under the scheme, you may receive rent gross, but you still need to account for the income through the correct UK process. If there is no approval, an agent may deduct tax. The deduction should be recorded, not treated as a loss of rent. The annual agent certificate, gross rent schedule, expenses and tax withheld should be reconciled to the Self Assessment return. A mismatch between the agent’s net remittances and the gross income expected by the French or UK form is a common source of errors.

The Non-resident Landlord Scheme and French tax residence can coexist. A person may be a non-resident landlord for the UK withholding rules, a French resident under the treaty, and still have UK tax to pay on the property income. “Non-resident landlord” in the HMRC scheme is not the same phrase as “non-resident for French income tax”. The labels answer different questions.

The exchange-rate point is practical but legally important. France generally requires amounts on its forms in euros, while the UK return is prepared in pounds. Keep the original sterling rent, the date and source of the conversion rate, the translated expense schedule and the calculation of any foreign tax. Do not convert only the final amount after mixing rents from different months with tax paid in another tax year. A consistent method should be used for all receipts and documented so that it can be reproduced.

The tax base also differs. A cost accepted by HMRC is not automatically a deductible charge under the French regime, and a French deduction does not automatically reduce UK rental profit. Mortgage interest, agent fees, repairs, insurance, service charges, capital works, replacement items and periods of vacancy must be classified separately. A capital improvement is not the same as a repair. A loan used partly for another purpose may require an allocation. The correct result is not obtained by copying the UK “net rent” line into the French 2047.

The central answer is therefore nuanced:

• The UK normally retains a taxing right over rent from UK immovable property.
• A French tax resident normally reports foreign income through the French process, subject to the treaty and the exact income category.
• The treaty may remove double taxation by exemption, effective-rate treatment or a credit, depending on the applicable article and levy.
• UK withholding under the Non-resident Landlord Scheme is an advance collection rule, not proof that the French declaration is unnecessary.

For a British family newly settled in France, the safest file contains both returns, the treaty analysis, and a single reconciliation table. That table should show gross rent, property costs, UK taxable amount, UK tax withheld or paid, euro conversion, French declaration boxes and the credit or effective-rate treatment claimed. It is more useful than a folder of unlabelled bank statements.

II. Which forms and deadlines apply when a British landlord lives in France?

A. Which French and UK forms should you file and what evidence should you keep?

Start with the French side because the 2047 controls the classification of foreign income. The current impots.gouv.fr explanation updated in July 2026 identifies the main return as form 2042, the 2047 as the foreign-income annex, and frame 4 of the 2047 for foreign rents. It then explains that the amount is transferred to the relevant 2042 boxes, including the boxes used for foreign property income. The same page distinguishes a credit equal to foreign tax from a credit equal to the French tax corresponding to the foreign income. That distinction must be followed exactly as the France–UK treaty requires.

In a typical unfurnished UK letting, the working sequence is:

1. Determine French tax residence and the treaty residence position for the year.
2. Identify the gross UK rents received or made available during the relevant period.
3. Separate ordinary rent, deposits, reimbursements, insurance payments, arrears and sale proceeds.
4. Complete the foreign-income section of form 2047 using the current notice.
5. Transfer the amount and the treaty treatment to form 2042 and any requested annex.
6. Complete any 2044 route requested for the French calculation where the relevant French regime requires it; do not use it as a substitute for the 2047 foreign-income disclosure.
7. Report the treaty credit or effective-rate information in the precise boxes indicated by the current form and notice.

The official 2044 page concerns the declaration of property income. Whether the 2044 is required for the particular UK property depends on the income classification and the current filing interface. A foreign unfurnished letting may be shown through the 2047 and the relevant transfer lines rather than treated as if it were a French property. The important point is not to add the same rent twice or to omit the expense calculation because the property is abroad.

If the property is furnished, do not force the rent into the unfurnished-property route. The French category may be BIC, meaning business and commercial profits, and an additional 2042-C PRO or other business form can be relevant. The current wording of Article 50-0 of the Code général des impôts contains micro-business rules, but the legal classification of a furnished letting is a separate question from the existence of a fixed allowance. The number of properties, the services supplied, the length of stays and the way the activity is operated can change the analysis. UK “furnished holiday letting” terminology should not be copied into a French return without a French classification check.

Article 31 of the French General Tax Code is relevant when the actual-expense route for property income is used. The current Article 31 text on Légifrance lists categories of charges that can be taken into account under the French property-income rules. It does not turn every UK accounting expense into a French deduction. Keep invoices and a short legal explanation for each expense: repair, maintenance, management, insurance, interest, service charge or capital work. Keep capital expenditure outside the ordinary repair schedule unless the applicable French rule supports its treatment.

The French Tax Code also imposes the basic filing obligation. Article 170 states that a person liable for income tax must file a detailed income declaration. The exact opening of Article 170 of the Code général des impôts reads: « toute personne imposable à l’impôt sur le revenu est tenue de souscrire ». The short quotation is not a substitute for reading the whole article, but it explains why the absence of a French pre-filled line for UK rent does not remove the taxpayer’s responsibility to complete the relevant annexes.

On the French deadline, do not reuse a date from a previous campaign. The administration publishes the annual dates and they can vary by department and by whether the return is filed online or on paper. The current Service-Public.fr page on income-tax deadlines is the right place to check the campaign applicable to the year being filed. A first return, a person without an online account, a return made by a non-resident, and a paper return may follow different instructions. Save the submission acknowledgement and the final PDF or printout.

On the UK side, the documents usually begin with the property section of Self Assessment, SA105. A person who is non-resident for UK filing purposes may also need the residence section, SA109, and may need to file by post or use software supporting the residence pages. HMRC’s rental-income guidance identifies the property and residence sections and explains that the Non-resident Landlord Scheme can apply. The GOV.UK overview for UK income when living abroad warns that a non-resident cannot use the ordinary HMRC online service for all parts of the return and may need post, compatible commercial software or a tax professional.

For a concrete current example, HMRC’s Self Assessment deadline page gives 31 October 2026 for a paper return and 31 January 2027 for an online return for the relevant 2025–26 filing cycle. The dates move with the tax year. A landlord who is first required to file, or who receives a notice with a different registration deadline, must follow the deadline attached to that notice. If an agent has withheld tax, include the amount in the UK reconciliation rather than assuming that the agent has filed the landlord’s personal return.

The UK and French periods should be mapped. The UK tax year runs from 6 April to 5 April; the French income-tax return generally concerns the calendar year. A UK statement covering 6 April 2025 to 5 April 2026 cannot simply be pasted into a French return for calendar year 2025. Build a monthly schedule, identify rent received or due under each country’s rules, and explain any timing difference. If the property changed tenants, was vacant, or was sold during the period, keep the completion statement separate from rental income.

The evidence pack should be capable of being read by someone who did not prepare the return. At minimum, retain:

• the title register, purchase deed or ownership document and any declaration of beneficial ownership;
• the tenancy agreement, renewals, deposit records and the letting agent’s annual statement;
• gross rent by month, bank statements and details of arrears or rent paid directly;
• UK tax returns, HMRC calculations, tax-payment confirmations and any NRL approval;
• invoices for repairs, management, insurance, finance and service charges, with capital works identified;
• the exchange-rate source and conversion spreadsheet used for the French return;
• the French 2047, 2042 and related annexes, plus the assessment notice;
• residence evidence: travel calendar, home availability, family location, work records and treaty correspondence.

Keep a written note explaining why the property is treated as unfurnished or furnished, why a credit rather than an exemption is claimed, and how the UK tax withheld relates to the UK liability. A tax officer asking for the file should be able to trace a pound of gross rent from the tenancy schedule to the UK return and a euro amount from the same rent to the French 2047.

For French procedural proof, Article 1353 of the Civil Code states: « Celui qui réclame l’exécution d’une obligation doit la prouver ». The official Article 1353 text is a general civil-law evidence rule, not a replacement for the tax procedure rules. It nevertheless illustrates the practical discipline needed when a landlord claims a deduction, disputes an ownership allocation or asks an agent to account for withheld rent: identify the claim and attach the document that proves it.

B. What can you do if rent was omitted, taxed twice or challenged?

An omitted year should be diagnosed before it is corrected. First establish whether France was your tax residence for that year. Next determine whether the UK income was declared in Britain, whether tax was withheld under the Non-resident Landlord Scheme, and whether any UK assessment or refund remains open. Then reconstruct the French form sequence. Do not start by paying an estimated amount without understanding whether the treaty relief is an exemption, a French-tax credit or a foreign-tax credit. An incorrect payment can make the later correction harder.

If the French return omitted UK rent, prepare a correction package with the 2047 calculation, the 2042 transfer lines, the UK return, the HMRC calculation, the agent certificate, the exchange-rate method and the treaty explanation. If the online correction service is open, use it and save the acknowledgement. If it is closed, contact the relevant French tax service and make a written correction request. The letter should identify the tax year, the form and line affected, the gross amount, the amount originally declared, the corrected amount, the requested treaty treatment and the supporting documents. Keep a copy and proof of delivery.

Delay can create a separate issue from the underlying tax. Article 1728 of the French General Tax Code deals with a return filed after the prescribed time. Its opening wording refers to « Le défaut de production dans les délais prescrits d’une déclaration »; the current Article 1728 text on Légifrance sets out the majorations for late filing, including the ordinary 10 per cent situation and the higher consequence after an unaddressed formal notice. The amount and procedure must be checked against the year, the notice and the taxpayer’s conduct.

Article 1729 addresses inaccuracies and omissions in a return. It begins with « Les inexactitudes ou les omissions relevées dans une déclaration » and provides higher majorations where the administration establishes deliberate failure, abuse of law or fraudulent manoeuvres. Read the Article 1729 text before describing an omission as deliberate or agreeing to a proposed adjustment. A late voluntary correction supported by a coherent file is not analysed in the same way as an unexplained omission after a formal control, but the precise procedural facts matter.

If the problem is double taxation, compare the tax bases rather than the bank movements. The same rent may appear as:

1. gross rent in the agent’s statement;
2. net property profit in the UK Self Assessment calculation;
3. gross or treaty-defined income in the French 2047;
4. a French amount used for the effective-rate calculation or a French tax credit;
5. an amount affected by social levies or another charge that is not identical to income tax.

A payment to HMRC and a French credit are not automatically equal because they may be calculated on different bases and periods. The French form may require gross income before UK tax. The treaty may cap or define the credit by reference to French tax corresponding to the income. The agent may have withheld basic-rate tax even though the final UK liability is lower. The correction must therefore show the legal route for each amount, not just subtract the UK payment from the French rent.

If HMRC withheld tax under the Non-resident Landlord Scheme, ask whether gross-rent approval should be obtained for future payments and whether the withheld tax has been credited on the UK return. The official HMRC NRL1 guidance explains the individual application to receive UK rental income without tax deducted. Approval changes the collection method; it does not remove the annual return or the French treaty analysis.

If France has treated the rent as French-taxable without the treaty credit, the objection should identify Article 6, Article 24 and the factual evidence of UK taxation or inclusion in the UK tax base. If the UK has denied relief on the ground that France should tax the rent, the objection should show the French residence status, the treaty text and the French return. The two administrations may each rely on a domestic label that does not answer the treaty question. A coordinated submission is stronger than two isolated explanations.

Article 26 of the France–UK treaty contains the mutual agreement procedure, often called MAP. It is a state-to-state process for a taxpayer who considers that the actions of one or both states result, or will result, in taxation not in accordance with the convention. It is not an ordinary first appeal and it does not replace a domestic objection deadline. The official treaty text on Légifrance should be read with the competent-authority instructions in the country concerned. Preserve all domestic rights while assessing whether a MAP request is justified.

The Conseil d’État opinion mentioned above is helpful when the dispute concerns the interaction between UK rental income, the treaty credit and French social contributions. It should not be copied mechanically into every case. The property may be furnished, the taxpayer may not have French treaty residence, the UK income may not have been included in the UK tax base in the same way, or the tax year may be governed by a different form. A case reference is useful only when the facts and legal issue are comparable.

The most efficient response to a tax notice is a short chronology:

• date of arrival in France and date of any departure from the UK;
• residence position claimed in each country;
• property ownership and letting dates;
• gross rent and expenses for each month;
• UK forms filed, tax withheld and tax ultimately assessed;
• French forms filed and treaty mechanism used;
• date of the assessment, request for information or formal notice;
• action requested: correction, refund, credit, withdrawal or MAP.

Do not answer a request for information with a new set of inconsistent figures. Use one reconciliation table and mark every change from the original return. If a figure is uncertain, identify the uncertainty and obtain the underlying document. A missing letting-agent statement, a disputed ownership share or a currency conversion can often be resolved more quickly than a broad argument about Brexit.

The same discipline applies to a future move. If you leave France, the French departure year may require a split-period return, while UK residence may change under the statutory rules. A UK property remains a UK-source asset after the move, but the residence state and the treaty credit may change. Keep the first French return, the final French return and the UK Self Assessment records together. A future sale is a separate capital-gains analysis; do not place sale proceeds in the rental schedule.

Finally, remember that a treaty protects against double taxation, not against filing mistakes. It does not convert an agent’s withholding into a final liability, allow a deduction without evidence, or make a residence permit conclusive. The legal result is built from the residence facts, the property classification, the treaty articles, the two filing calendars and the proof that connects them.

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Conclusion

For a British landlord living in France, UK rent is rarely a one-line entry. The United Kingdom normally keeps a taxing right over the property, France may require the income to be declared because of French tax residence, and the France–UK treaty determines how double taxation is removed. The correct forms depend on the property’s furnishing, ownership and the way the rent is collected. The correct deadline depends on the filing campaign and the tax year.

Build the file in this order: residence, property classification, gross rent, deductible costs, sterling-to-euro conversion, UK tax, French 2047 and 2042 reporting, treaty relief, then evidence. If a year has been missed or an agent has withheld too much, correct the underlying figures before arguing about the final amount. A coherent reconciliation gives both administrations a usable explanation and gives you a defensible basis for a correction, refund claim or treaty procedure.