Missed UK Tax Returns on a Former Holiday Let: US Owners
Missed UK tax returns on a former furnished holiday let? How American owners correct Self Assessment after April 2025 and align US Schedule E. Speak to us.
Missed UK tax returns on a former furnished holiday let are put right in two steps. First, file or amend every outstanding year of UK Self Assessment, using the old FHL rules up to 5 April 2025 and ordinary property rules after that. Then bring the same cottage onto your US Schedule E with US depreciation and foreign tax credits.
For American owners of an English, Welsh or Scottish holiday cottage, abolishing the furnished holiday lettings (FHL) regime was not a cosmetic change. From 6 April 2025 the property is just another let property for UK purposes, with no special treatment. That changes how mortgage interest is relieved, how furniture and fittings are written off, where losses can be used and whether the profits support pension contributions. If you have missed UK tax returns, or filed returns that still treat the cottage as an FHL, the corrections have to follow the right rules for each tax year. Your US return was never aware of FHL status in the first place, so it has to be lined up with the UK figures as well. This guide sets out the compliance and return preparation work in the order an experienced cross-border preparer would do it.
What changed when the furnished holiday let regime was abolished?
The government's policy paper on abolishing the FHL tax regime confirms the effective dates: changes take effect from 6 April 2025 for Income Tax and Capital Gains Tax, and from 1 April 2025 for Corporation Tax. An anti-forestalling rule, aimed at unconditional contracts used to secure the old capital gains reliefs, has applied since 6 March 2024. For an individual owner, five changes matter most on the return itself.
1. Mortgage interest is now restricted to a basic-rate tax credit
Qualifying FHLs were exempt from the finance-cost restriction, so mortgage interest and other finance costs could be deducted in full against holiday-let profits. From 2025-26 that exemption has gone. Finance costs are no longer deducted when working out the property profit. Instead they produce a tax reduction at the basic rate of 20%, limited by reference to your property profits and adjusted total income. For a higher- or additional-rate owner with a mortgaged cottage, UK tax can rise sharply even though the rent has not changed. A return that still deducts the interest in full understates the tax.
2. Capital allowances: the pool continues, but nothing new goes in
FHL owners could claim plant and machinery capital allowances on furniture, equipment and fixtures, which is a privilege ordinary residential landlords do not have. After abolition, any unrelieved expenditure already in a capital allowances pool at 5 April 2025 keeps attracting writing-down allowances in 2025-26 and later years. Spending from that date onwards cannot be added to the pool. Replacing domestic items such as beds, sofas, white goods and soft furnishings now falls under replacement of domestic items relief, which covers like-for-like replacement and does not cover the first fit-out. Two common errors are adding post-April 2025 purchases to the old pool and claiming the annual investment allowance after abolition.
3. Losses are pooled with your wider property business
Under the old rules, FHL losses could only be set against profits of the same FHL business. From 2025-26 the former FHL is absorbed into your UK property business, and its profits and losses are combined with those of any other UK lets you own. Unrelieved FHL losses carried forward at 5 April 2025 can be set against future profits of that combined UK property business. This is a helpful change, but it only works if the brought-forward figure on the return is right. That is often not the case when earlier returns are missing.
4. Profits no longer count as relevant UK earnings for pensions
FHL profits used to count as relevant UK earnings, which supported tax-relieved pension contributions above the basic £3,600 gross level. From 2025-26 they no longer count. An owner whose only UK earnings were holiday-let profits, and who has carried on paying personal pension contributions at the old level, may have had relief at source they were not entitled to. That has to be corrected on the return. Because the US also scrutinises UK pensions, the pension figures on both returns should agree.
5. Capital gains reliefs and joint-ownership splits
For disposals on or after 6 April 2025, business asset disposal relief and roll-over relief are no longer available for a former FHL, subject to limited transitional rules where the business ceased earlier. The FHL exception to the rule that spouses and civil partners are taxed 50:50 on jointly owned property has also gone. From 2025-26, couples who split holiday-let profits in other proportions without a valid Form 17 declaration of unequal beneficial ownership will usually have to file on a 50:50 basis.
UK before and after April 2025, and the US view
| Issue | UK: qualifying FHL (to 5 April 2025) | UK: former FHL (from 6 April 2025) | US: Schedule E (all years) |
|---|---|---|---|
| Mortgage interest | Fully deductible | 20% basic-rate tax credit only | Deductible as a rental expense, allocated if there is personal use |
| Furniture, fittings, equipment | Plant and machinery capital allowances | Existing pool runs off; replacement of domestic items relief for replacements | Depreciated under ADS; no bonus depreciation |
| Building cost | No relief | No relief | Depreciated under ADS over 30 or 40 years, depending on classification |
| Losses | Ring-fenced to the FHL business | Pooled with the UK property business | Subject to passive activity and personal-use limits |
| Pension relevant earnings | Yes | No | Not applicable |
| Joint owners (married) | Profits could be split by agreement | 50:50 unless Form 17 applies | Follows legal ownership and filing status |
| Tax year | 6 April to 5 April | 6 April to 5 April | Calendar year |
Why are so many American owners now non-compliant?
Few cottage owners set out to be non-compliant. The problems we see at Jungle Tax usually come from one of four situations:
- Never registered. The cottage was bought as a family retreat and let informally through a booking platform, so nobody notified HMRC of chargeability by 5 October following the first tax year of letting.
- The UK side was assumed to be covered by the US return. Many owners who live in the US believe that reporting rent on Schedule E is enough. It is not. UK property income is taxable in the UK whatever your residence, and the US foreign tax credit assumes UK tax has actually been paid.
- Software rolled forward the FHL pages. The 2025-26 return was prepared by carrying forward prior-year data, so interest was deducted in full and new purchases went into the old capital allowances pool.
- The non-resident landlord scheme was overlooked. Owners living outside the UK who receive rent through a UK letting agent may be subject to basic-rate withholding at source unless HMRC has approved gross payment. Agents and platforms do not always handle this consistently.
How are missed or incorrect UK returns put right?
The route depends on how many years are affected, whether HMRC has already been in touch, and whether you filed at all. The work follows the same sequence in every case.
Step 1: Establish the full position year by year
Rebuild income and expenditure for every year the cottage was let, using booking platform statements, agent reports, bank records and mortgage statements. For each year up to 2024-25, test whether the property actually met the FHL conditions (availability, actual letting and pattern of occupation). A cottage that failed the occupancy tests in a given year was never entitled to FHL treatment for that year, whatever earlier returns said. Getting this classification wrong for the historic years puts every later brought-forward figure out.
Step 2: Choose the disclosure route
Where returns were never filed and tax is owed on residential letting income, HMRC's Let Property Campaign disclosure guidance sets out a structured way to notify, calculate and pay what is due, usually through the Digital Disclosure Service. Owners who are within Self Assessment but filed wrong figures may instead be able to amend. A return can normally be amended online within 12 months of the 31 January filing deadline, so the 2024-25 return can be amended until 31 January 2027. For older years, correction is made by disclosure or by an overpayment relief claim where tax was overpaid.
Step 3: Apply the right rules to each year
Prepare the FHL years with full interest deductions, capital allowances and FHL-only loss use, and fix the pool and loss balances at 5 April 2025. From 2025-26, report the cottage on the UK property pages rather than in a separate FHL section. Bring forward the unrelieved FHL losses and the pool balance, apply the finance-cost tax reduction, and claim replacement of domestic items relief only for genuine replacements. Owners who were not UK resident report on the same UK property pages and also deal with the non-resident landlord position.
Step 4: Calculate penalties and interest, and argue mitigation
Late filing triggers a fixed £100 penalty, followed by daily penalties after three months and further penalties at six and twelve months. Late payment attracts interest and its own penalties. Inaccuracy and failure-to-notify penalties are behaviour-based. They are a percentage of the tax understated, and they are substantially lower when a disclosure is unprompted and the behaviour was careless rather than deliberate. HMRC's normal assessment window is four years, extended to six for carelessness and to as long as 20 for deliberate behaviour or where chargeability was never notified. That is why establishing the behaviour, and documenting reasonable care where it exists, matters so much. HMRC's Self Assessment penalties guidance sets out the fixed late-filing scale.
Step 5: Keep 2025-26 and later years clean
Once the backlog is cleared, 2025-26 is the first year under the new rules, with online filing due by 31 January 2027. Making Tax Digital for Income Tax is also being phased in from April 2026 for individuals whose combined self-employment and property income exceeds the qualifying threshold, which falls in later years. A former FHL owner with significant gross rents should check now whether quarterly digital reporting applies.
How is the same cottage reported on the US return?
As a US citizen you report worldwide income every year wherever you live, so the cottage's rent belongs on your Form 1040. Usually that means Schedule E, which IRS Publication 527 on residential rental property covers. The US never recognised FHL status, so abolition changes nothing about the US computation itself. What it does change is the amount of UK tax available to credit.
Depreciation under the Alternative Depreciation System
Property used mainly outside the United States must be depreciated under the Alternative Depreciation System (ADS) using straight-line rates, and bonus depreciation is not available. A foreign residential rental placed in service after 2017 generally uses a 30-year ADS recovery period. Holiday cottages need more care, because property used mainly by short-stay guests may fall outside the tax definition of residential rental property. Some preparers therefore treat it as non-residential real property with a 40-year ADS life. Only the building is depreciated, never the land, so the purchase price has to be apportioned on a defensible basis. Furniture and equipment are depreciated separately over shorter ADS lives. IRS Publication 946 on depreciating property explains the methods. Depreciation is "allowed or allowable", so years you did not claim still reduce your US basis when you eventually sell. That is a strong reason to correct missed US years rather than simply start claiming now.
Short-stay letting, personal use and the passive loss rules
Two US rules often catch holiday-cottage owners out. First, if your family uses the cottage for more than the greater of 14 days or 10% of the days it is rented at a fair rate, expenses must be apportioned and deductions limited to rental income. Second, where the average guest stay is seven days or less, the activity is generally not treated as a rental activity for the passive loss rules. Whether losses can be used then depends on your material participation. If substantial services are provided, such as daily cleaning or meals, the income may belong on Schedule C rather than Schedule E. These questions are separate from the UK's old FHL tests and have to be answered on their own terms.
Foreign tax credit and the timing mismatch
UK income tax on the cottage's profit is generally creditable on Form 1116, normally in the passive category. Because the UK tax year runs to 5 April and the US year to 31 December, each US return draws on parts of two UK years. Choosing between the cash and accrual methods of claiming credits, and applying it consistently, is a real compliance decision. Since 2025-26 the UK finance-cost restriction means UK taxable profit is often higher than the US Schedule E profit, which still deducts interest and adds depreciation. The result is frequently excess UK credits in the passive basket, which can be carried back one year and forward ten. When missed UK returns are filed late, the UK tax becomes payable years after the income was earned, and the US returns for those years may need amending to claim the credit.
Net investment income tax and information returns
Many practitioners take the view that the 3.8% net investment income tax cannot be reduced by foreign tax credits under domestic law, so high-income owners with rental profit can face a residual US charge even when UK tax is higher. A UK bank account used to collect rent counts towards the FBAR threshold if your aggregate foreign accounts exceed $10,000 at any point in the year. The cottage itself, held directly, is not a reportable foreign financial asset on Form 8938, although the bank account may be.
What if the US returns were missed too?
It is common for both sides to be behind. An owner who has not filed US returns, or who left the cottage and the UK rental account off them, may qualify for the IRS Streamlined Filing Compliance Procedures. Those living outside the US for the required period may be able to use the Streamlined Foreign Offshore Procedures, which carry no penalty where the conduct was non-wilful. The sequencing matters. Settle the UK figures first so that the UK tax actually paid can be credited, then prepare the US returns, FBARs and the required certification. Our IRS streamlined filing team regularly coordinates both disclosures so the numbers agree, and our FBAR penalty calculator gives an early sense of the exposure where accounts were missed.
A worked illustration of the 2025-26 change
Consider an American additional-rate taxpayer who owns a Cornish cottage with £60,000 of gross bookings, £22,000 of running costs and £18,000 of mortgage interest for 2025-26. Under the old FHL treatment, the interest would have been deducted in full, leaving £20,000 of profit before capital allowances. Under the post-abolition rules, taxable property profit is £38,000 before allowances, and the interest instead produces a tax reduction of £3,600 (20% of £18,000), subject to the statutory limits. For an additional-rate payer, the extra UK tax is therefore roughly the difference between relief at 45% and relief at 20% on £18,000. On the US side, Schedule E still deducts the interest in full and also deducts ADS depreciation on the building. US taxable profit is lower than UK profit, the UK tax is higher, and the excess credit has to be tracked carefully across years. Illustrative figures only; every owner's calculation depends on their full income position.
Documents to assemble before work begins
- Completion statement and purchase records, with any valuation that separates land from building
- Booking platform and letting agent statements for every year let
- Mortgage statements showing interest separately from capital
- Invoices for furniture, fixtures and refurbishments, dated so they can be placed before or after 6 April 2025
- Any previous UK returns, HMRC correspondence, nudge letters or penalty notices
- Prior US returns, Forms 4562 and 1116, and FBAR filings
- A record of family personal-use days for each year
Why a cross-border preparer matters here
Most UK guidance on FHL abolition is written for UK-only landlords, and most US guidance on foreign rentals ignores FHL history altogether. American owners sit in the gap. The UK pool and loss balances, the US depreciation basis, the foreign tax credit carryovers and the FBAR position all depend on each other, and correcting one side in isolation often breaks the other. For owners with larger portfolios or complex income, our high-net-worth practice and US-UK tax accountants prepare both returns as a single, reconciled set.
If your holiday cottage has slipped behind on UK Self Assessment, or your returns still treat it as a furnished holiday let after April 2025, the safest course is a confidential review before HMRC or the IRS starts asking. We will establish the position for every year, choose the right disclosure route on each side of the Atlantic and prepare matching UK and US returns. Contact our cross-border team to arrange a confidential consultation.
