Missed UK Tax Returns: US Oil and Gas Royalties in the UK

If you are UK resident and receive US oil and gas royalties, HMRC taxes them as foreign income in the tax year they arise, whether or not the money ever leaves America. Reporting them on a US Schedule E does not satisfy the UK. The US taxes first, the UK gives credit, and unreported years can be corrected voluntarily.

Missed UK tax returns of this kind are rarely the result of concealment. A UK-resident American with long-held mineral or royalty interests in Texas, Oklahoma or North Dakota typically has a tidy US file: a Form 1099-MISC every January, a Schedule E, a depletion deduction and perhaps a state non-resident return. The cheques land in a US account and stay there. Nothing in that routine prompts a UK entry, and so the income never appears on a Self Assessment return. At Jungle Tax we prepare both countries' returns for clients in exactly this position, and the pattern is consistent: the US side is complete, the UK side is blank, and the UK tax is larger than expected because the UK does not recognise the deduction that makes mineral income attractive in America.

This guide explains how HMRC taxes the income, where it goes on the return, how relief for US federal and state tax works, and how earlier years are brought up to date. It covers return preparation and compliance only, and it deals with royalty interests held personally by an individual.

Why do US royalty cheques create a UK filing obligation?

A UK-resident individual is taxed on worldwide income on the arising basis unless a specific relief applies. Royalties from US minerals are foreign income, and they arise when you become entitled to them. It makes no difference that the payer is American, that US tax has already been paid, that the funds sit in a dollar account in Houston or Tulsa, or that the interest has been in the family for decades.

Three consequences follow:

• You must be in Self Assessment. If HMRC has not sent you a notice to file, you are required to notify chargeability by 5 October after the end of the tax year in which the income arose. For 2025-26 that date is 5 October 2026.
• PAYE does not cover it. Senior employees whose UK salary is fully taxed at source often assume they have nothing further to report. Untaxed foreign income of this size is precisely what takes a PAYE-only taxpayer into Self Assessment.
• US compliance is not a defence. A complete Form 1040 shows good faith, which matters for penalties, but it does not discharge the UK obligation.

How does HMRC classify US oil and gas royalties?

The word "royalty" misleads. Most online commentary on the US-UK treaty states that royalties are taxable only in the country of residence. That is Article 12, and it concerns intellectual property: copyrights, patents, trademarks. Payments for the right to work mineral deposits are different. Article 6 of the 2001 US-UK income tax convention defines immovable property to include rights to variable or fixed payments as consideration for the working of, or the right to work, mineral deposits, sources and other natural resources. A US oil and gas royalty is therefore real property income for treaty purposes, and the country where the land lies, the United States, has the primary right to tax it.

For a US citizen the point is almost academic on the US side, because the treaty's saving clause lets the US tax its citizens regardless. Where it matters is on the UK side: because the income is US-source real property income, the UK is the country that gives relief, by crediting US tax against the UK liability.

Under UK domestic law, the receipts come from exploiting a right in or over land outside the UK. In our view that points to the property income rules, specifically an overseas property business under section 265 of the Income Tax (Trading and Other Income) Act 2005, which HMRC's Property Income Manual at PIM1025 describes as mirroring a UK property business for land abroad. The classification is not free from doubt for every type of interest, and it should be confirmed on the facts, but on any view the income is taxable foreign income charged at the non-savings rates: 20%, 40% and 45% for 2026-27 in England, Wales and Northern Ireland, with different rates and bands for Scottish taxpayers.

Royalty interest or working interest?

The analysis above assumes a royalty or mineral interest: you receive a share of production free of the costs of drilling and operating. A working interest, where you bear a share of those costs, is a different animal. In the US it is usually reported on Schedule C and may attract self-employment tax; in the UK it raises the question of whether you are carrying on a trade. If your division orders show a working interest, or a mix, the UK computation needs to be built differently.

Which SA106 section do mineral royalties belong in?

Foreign income is reported on the SA106 Foreign pages of the Self Assessment return. The form has separate sections for interest, dividends, overseas pensions and certain royalties, income from land and property abroad, and other overseas income.

If the income is treated as an overseas property business, the natural home is the "Income from land and property abroad" section. That section allows you to show gross receipts, deduct allowable expenses, arrive at a taxable profit and claim foreign tax credit relief for the US tax on that profit. The royalties line elsewhere on the form is designed for a single gross figure with tax deducted at source and offers no place for expenses, which is one reason it tends to produce the wrong answer for mineral income.

Whichever section is used, three things should be done consistently: disclose the nature of the income in the white space so HMRC can see what has been reported, use the same treatment every year, and keep the working papers that reconcile the UK figure to the US Schedule E.

US and UK treatment compared

Issue	United States (IRS and states)	United Kingdom (HMRC)
Basis of charge	Citizenship and US source; taxed wherever you live	UK residence; worldwide income on the arising basis
Where reported	Form 1099-MISC box 2, then Schedule E, Part I	SA106 Foreign pages with the SA100
Tax year	Calendar year	6 April to 5 April
Depletion	Percentage depletion, generally 15% of gross, or cost depletion if greater	No equivalent deduction for a royalty owner
Severance and production taxes	Deducted on Schedule E	Not creditable as a tax on income; treated, at most, as an expense
State income tax	Non-resident return where the state taxes income; none in Texas	Creditable under UK unilateral relief if charged on income
Net Investment Income Tax	3.8% above the statutory thresholds	Listed by HMRC as an admissible tax for credit
Top marginal rate	37% federal, plus NIIT and any state tax	45% (and an effective 60% between £100,000 and £125,140)
Treaty article	Article 6; primary taxing right	Article 24; UK gives credit

Why don't US depletion and severance taxes carry across to the UK return?

The UK computation is not the Schedule E translated into sterling. It starts again from gross receipts and applies UK rules to each deduction.

Percentage depletion

US percentage depletion lets an independent producer or royalty owner deduct, broadly, 15% of gross income from the property, subject to limits by reference to net income from the property and 65% of overall taxable income, even after the original cost has been fully recovered. It is a policy incentive, not a measure of economic cost. The UK has nothing like it for a passive royalty owner. Mineral extraction allowances exist in the UK capital allowances code, but they are aimed at those carrying on a mineral extraction trade, not at an individual receiving royalties. Cost depletion fares no better: it is a write-off of capital, and capital expenditure is not deductible in computing property income. The practical effect is that UK taxable income is higher than US taxable income by at least the amount of the depletion claimed.

Severance, production and ad valorem taxes

Texas levies a production tax of 4.6% on the market value of oil and 7.5% on natural gas, and Oklahoma charges a gross production tax; the operator deducts the owner's share before paying. County ad valorem taxes on the mineral interest are billed separately. None of these is a tax on income. They are charged on production or on property value, so they do not qualify for UK foreign tax credit relief. The better view is that they are revenue expenses incurred wholly and exclusively for the purpose of earning the royalty and are deductible in arriving at the UK profit. The distinction matters: a deduction saves tax at your marginal rate, whereas a credit would have saved the full amount.

Post-production costs and professional fees

Gathering, compression, transport and marketing charges shown on the cheque stub reduce what you actually receive and are generally deductible on the same wholly-and-exclusively basis, as are reasonable fees for preparing the royalty accounts. Keep the monthly remittance statements; a 1099-MISC alone shows only the gross figure.

Lease bonuses and delay rentals

A lump sum paid for signing a new lease is ordinary income in the US, reported as rent, and does not attract percentage depletion. The UK analysis of a lump sum for granting rights over land is more involved and can produce a different split between income and capital. Any bonus received in an unreported year should be analysed separately, not added to the royalty total.

How does UK foreign tax credit relief work for US federal and state tax?

Federal income tax

Because the royalties are US-source real property income, US federal income tax on them is creditable against the UK income tax on the same income under Article 24 of the treaty. Three limits apply in practice:

• The credit cannot exceed the UK tax on the same income. It is computed source by source, and any excess US tax is simply lost for UK purposes.
• The credit is for the final US liability, not the amount withheld. If the operator applied 24% backup withholding because no Form W-9 was on file, the creditable figure is the tax properly attributable to the royalties on your Form 1040, not the withholding, most of which may be refunded.
• You must have taken reasonable steps to minimise the US tax. HMRC restricts credit to the foreign tax that would have been payable had available reliefs been claimed. Failing to claim depletion in the US and then asking the UK to credit the higher US tax is not a route that works.

State income tax

The treaty covers federal taxes only, but the UK's domestic unilateral relief extends to US state taxes that are charged on income. HMRC's Double Taxation Relief Manual at DT19851 lists admissible and inadmissible US taxes state by state: income taxes on net income are generally admissible, while sales, property and capital-based franchise taxes are not. Oklahoma, for example, requires remitters to withhold 5% from royalties paid to non-resident owners; the creditable amount is the final Oklahoma income tax on the non-resident return, not the withholding. Texas has no personal income tax, so for Texas minerals there is no state income tax to credit.

Net Investment Income Tax

Royalties from a passive mineral interest are net investment income, so higher earners pay the 3.8% NIIT on top of regular federal tax. HMRC's manual lists NIIT as admissible for credit. Whether the full amount is creditable in a particular case depends on how the treaty's limit on citizenship-based tax applies, and the position should be reviewed before it is relied on.

Does treaty re-sourcing help on the US side?

Usually not for this income, and understanding why prevents a common error. Article 24(6) of the treaty sets out a three-step mechanism for US citizens resident in the UK. First, the UK gives credit only for the US tax that would have been due if the individual were not a US citizen. Second, the US gives credit for the UK tax that remains. Third, income is treated as arising in the UK to the extent needed to make that second credit work. This re-sourcing rule is valuable for US dividends and interest, where the treaty caps the US tax a non-citizen would pay and the UK therefore gives only limited credit.

Mineral royalties are different. The treaty places no cap on US tax on US real property income, so the UK gives credit for the US tax in full, subject to the limits above, and there is nothing left for re-sourcing to solve. The result is one-directional: US tax first, UK credit second, and any UK tax in excess of the US tax is a genuine additional cost. That UK top-up does not generate a usable US foreign tax credit, because the income is US-source and the US credit limitation is driven by foreign-source income. Claims to credit the residual UK tax on Form 1116 against US tax on the same royalties should be treated with caution.

A worked illustration

The figures below are illustrative, use assumed rates and ignore exchange movements. An additional-rate UK taxpayer receives gross royalties of $120,000, from which the operator deducts $7,000 of production taxes.

• US taxable income: $120,000 less $7,000 production taxes less $18,000 percentage depletion (15% of gross) = $95,000.
• US tax, assumed: federal income tax at 32% ($30,400), NIIT at 3.8% ($3,610) and state income tax of $4,000 = $38,010.
• UK taxable income: $120,000 less $7,000 = $113,000. No depletion.
• UK tax at 45%: $50,850.
• Less credit for US tax on the same income: $38,010, assuming all three elements are admissible.
• UK tax payable: $12,840, converted to sterling, for each year.

Two points stand out. The UK bill arises even though the headline US and UK rates look similar, because the UK taxes a base roughly 19% larger. And where the income pushes total income through the £100,000 to £125,140 band, the loss of the personal allowance raises the effective UK rate on that slice to 60%, widening the gap further.

Arising basis, the remittance basis and the FIG regime

Tax years to 5 April 2025

Before 6 April 2025, a UK resident who was not UK domiciled could claim the remittance basis, under which foreign income was taxed only if brought to the UK. Many Americans assume this protected royalties left in a US account. It often did not. Outside narrow exceptions, including unremitted foreign income and gains below £2,000, the remittance basis had to be claimed on a tax return. Without a claim, the arising basis applied by default. A claim also cost the personal allowance and, for longer-term residents, carried an annual charge of £30,000 after seven of the previous nine tax years of residence, rising to £60,000 after twelve of fourteen, and was unavailable altogether once an individual became deemed domiciled after fifteen of the previous twenty tax years.

Claims can generally be made up to four years after the end of the tax year, so for some recent years a late claim may still be open and for older years it is not. Even where a claim is possible, royalties that were spent in the UK, used to service UK borrowing or mixed with other funds later brought here will have been remitted. For anyone who validly used the remittance basis in the past, the Temporary Repatriation Facility allows designated pre-April 2025 foreign income to be taxed at 12% in 2025-26 and 2026-27 and 15% in 2027-28.

From 6 April 2025

The remittance basis has been abolished and replaced by the foreign income and gains regime. A new arrival who was non-UK resident for the ten consecutive tax years before coming to the UK can claim relief on qualifying foreign income, which includes the profits of an overseas property business, for the first four tax years of residence. The relief is not automatic. It must be claimed in a Self Assessment return, the income must be quantified, and the claim costs the personal allowance and the capital gains annual exempt amount. An eligible new resident who files nothing has claimed nothing. Everyone else, including Americans who have lived in Britain for many years, is taxed on the royalties as they arise.

Tax years, exchange rates and accounting basis

• Different years. The US return covers the calendar year; the UK year runs from 6 April to 5 April. Monthly royalty statements must be re-cut to the UK year, and US federal and state tax apportioned to the UK period to which the income belongs.
• Sterling conversion. Each receipt and each expense is converted to sterling, either at the rate when it arose or at an HMRC-published average rate applied consistently. US tax credited is converted on a matching basis.
• Cash or accruals. Royalty cheques commonly trail production by two months or more. Property income is computed on the cash basis by default where receipts do not exceed £150,000 and on the accruals basis above that, so larger interests need a timing adjustment at each year end.
• Rates from April 2027. The government has announced separate property income rates of 22%, 42% and 47% from 6 April 2027. If mineral royalties fall within property income, as we expect, the UK top-up will widen.

How do you correct missed UK tax returns for royalty income?

The route depends on the year and on whether a return was filed at all.

1. Establish the years and the behaviour. HMRC's ordinary assessing window is four years from the end of the tax year, six where the error was careless, twelve for offshore matters that were not deliberate, and twenty where the conduct was deliberate. Where chargeability was never notified, the twenty-year limit can also be in point, subject to reasonable excuse. Long-held interests can therefore involve many years.
2. Rebuild the UK figures. For each UK tax year, assemble gross receipts, production taxes, post-production costs and the US federal and state tax attributable to the income, then recompute under UK rules without depletion.
3. Current year. For 2025-26, notify chargeability by 5 October 2026 and file online by 31 January 2027, with payment due the same day.
4. Returns still open to amendment. A 2024-25 return that was filed without the royalties can be amended until 31 January 2027.
5. Earlier years. These are disclosed through HMRC's Worldwide Disclosure Facility. You notify through the Digital Disclosure Service, receive a reference, and then have 90 days to submit the disclosure with tax, interest and a self-assessed penalty. HMRC's current guidance says outstanding returns for 2022-23 onwards are not included in the disclosure itself; they are filed as returns.
6. Align the US return. Confirm that the US filings are consistent with the UK figures and that no US credit has been claimed for UK tax on this income without a proper basis.

Penalties and interest

The United States is a Category 1 territory for the UK's offshore penalty rules, so the standard ranges apply without an offshore uplift: up to 30% of the tax for careless inaccuracy or non-deliberate failure to notify, up to 70% for deliberate conduct and up to 100% where there was concealment. An unprompted disclosure with full co-operation takes the figure towards the bottom of the range, and a careless inaccuracy disclosed unprompted can be reduced to nil. A separate and harsher regime, with penalties starting at 100% of the tax, can apply to offshore non-compliance for 2015-16 and earlier years that was not corrected by 30 September 2018, although a reasonable excuse is a defence. Late payment interest runs from the original due date on every year.

The decisive factor is whether the disclosure is unprompted. US payers do not report to HMRC under the Common Reporting Standard, but that should give no comfort: information reaches HMRC through other channels, and continuing to omit income once you know it is taxable moves the behaviour from careless towards deliberate.

The US side in brief

The royalties appear in box 2 of Form 1099-MISC and are reported on Schedule E (Form 1040), Part I, with production taxes and depletion deducted there. A royalty interest is not subject to self-employment tax but is within the 3.8% NIIT. States that tax income require a non-resident return for royalties sourced there; several also require withholding from non-resident owners. Provide the operator with a Form W-9 and your current UK address so that backup withholding is not applied.

If the US returns themselves have gaps, for example unreported UK accounts on an FBAR or Form 8938, the US catch-up should be planned alongside the UK disclosure. Our IRS streamlined filing team and our US-UK tax accountants prepare both sets of filings together so the figures agree.

What should a UK-resident royalty owner do now?

• Gather every Form 1099-MISC, monthly remittance statement, Schedule E and state return for the years in question.
• Identify each interest as a royalty, overriding royalty or working interest.
• Establish your UK residence history and whether any remittance basis or FIG claim was, or could still be, made.
• Do not alter or stop US filings in the meantime; consistency supports the case that the UK omission was not deliberate.
• Do not contact HMRC piecemeal. Notify once, with the years and the route decided.
• Budget for UK tax on a base larger than the US one, plus interest.

Clients with substantial US-source income alongside UK earnings will find related material in our cross-border guides and on our high net worth service page.

Speak to a US-UK specialist

Mineral royalties are among the more technical items to carry from a US return to a UK one: the treaty article is not the one most people expect, the main US deduction has no UK counterpart, and relief for state and production taxes turns on what each tax is charged on. Jungle Tax prepares the UK returns and disclosures, reconciles them to the US filings and deals with HMRC on your behalf. To arrange a confidential consultation, contact our cross-border team.