Missed UK Tax Returns for American Owner-Directors in 2026

Missed UK tax returns are common among American founders who own and run their own UK limited company. A small PAYE salary does not settle the dividends. Where dividends exceed the allowance or push income into higher rates, a Self Assessment return is required, and the late UK figures then change what belongs on your US Form 1040.

This guide is written for the US citizen living in the UK who is both director and principal shareholder of a UK company, has paid themselves a modest salary through payroll plus substantial dividends, and only now realises that missed UK tax returns sit behind several years of otherwise tidy company accounts. It covers when an owner-director actually has to file, how HMRC prices the delay, how to reconstruct the paperwork, and, critically, how the UK numbers flow into the US return. Most guidance treats the two systems separately. At Jungle Tax we prepare both sides together, because the order in which they are fixed determines how much of the UK tax you can credit in the US.

Why the PAYE assumption fails for owner-directors

The pattern is consistent. The company runs a payroll for a salary set at or near the personal allowance, so no income tax is deducted and the director sees a clean payslip. Corporation tax is filed on time, the accounts are signed, and the company's affairs look complete. Dividends are then declared each quarter or each year, often by an accountant who handles only the company side.

PAYE taxes employment income. It does not tax dividends. Dividends paid by a UK company carry no withholding and no tax credit, so the only mechanism that collects tax on them is the shareholder's own return (or, for modest amounts, a tax code adjustment). If nobody registered the director for Self Assessment, the dividend tax was simply never assessed. HMRC can see the company's dividend data and the director's payroll record, and in our experience it increasingly does join them up.

Does being a company director on its own require a Self Assessment return?

Phrase this carefully, because the answer has shifted over the years and much online guidance is out of date. HMRC's current published position is that holding a directorship does not, by itself, create a duty to file. The duty arises from the income and benefits the director receives, or from HMRC issuing a notice to file. If HMRC has sent you a notice to file, you must file for that year whether or not tax is due.

For returns from 2025/26 onwards, directors of close companies who do file must also complete additional boxes on the employment pages, including the company's details, their shareholding and the dividends they received from it. HMRC has confirmed that only directors already required to file need to complete them. For an owner-director taking meaningful dividends, that distinction is academic: the dividends almost always create the filing obligation anyway.

The triggers that matter for an owner-director

• Dividends above £10,000 in a tax year. HMRC's guidance requires a Self Assessment return where dividend income exceeds £10,000. Below that, but above the dividend allowance, tax can in principle be collected through your tax code if you tell HMRC.
• Dividends taxed above the basic rate. Once salary plus dividends exceed the basic rate band, the higher dividend rate applies and must be assessed. A PAYE code cannot sensibly collect a five-figure dividend liability.
• Income over £100,000. The personal allowance tapers away above this level, which retrospectively taxes part of a salary that payroll treated as tax-free.
• Director's loan account benefits. An overdrawn loan account above £10,000 at any point in the year can create a beneficial loan benefit, and a loan that is written off is taxed on a close company participator as dividend income.
• P11D benefits not coded out. Private medical cover, a company car or living costs met by the company create taxable benefits that may not have been collected through payroll.
• Other untaxed income. US-source interest and dividends, rental income or gains on a US brokerage account are all reportable once you are UK resident, and each independently requires a return.

UK and US treatment at a glance

The same income is seen very differently by each system. This table summarises the position for a US citizen who is UK resident and owns most of a UK trading company.

Item	UK (HMRC)	US (IRS)
Small PAYE salary	Employment income, taxed through payroll; personal allowance usually absorbs it unless income exceeds £100,000	Foreign earned income on Form 1040; Foreign Earned Income Exclusion or foreign tax credit, with Form 5471 Schedule M disclosure of compensation
Dividends from own company	Taxed on the return at dividend rates after a small allowance; no withholding	Generally qualified dividends at preferential rates if holding and treaty conditions are met; reported on Form 1040 and reconciled to Form 5471
UK tax on those dividends	Paid via Self Assessment, with interest if late	Creditable on Form 1116 against US tax on the same income, subject to the limitation and the qualified dividend adjustment
Overdrawn director's loan	Possible benefit in kind; company-level charge if not repaid in time; taxable as a distribution if written off	Potentially an investment in US property by a controlled foreign corporation, creating a Section 956 inclusion
Company bank accounts	No personal reporting	Signature authority can require FBAR reporting even where the funds belong to the company
Catch-up route	Register late, file returns, or disclose; failure-to-notify penalties based on lost tax	Amended returns with Form 1116, or the streamlined procedures if information returns were also missed

Registering late and what HMRC will charge

Anyone who needs to file but has not received a notice must tell HMRC by 5 October following the end of the tax year. Missing that date for several years is a failure to notify, which is priced differently from a simple late return. Registration is done through the Self Assessment registration service on GOV.UK, after which HMRC issues a Unique Taxpayer Reference and, usually, notices to file for the outstanding years.

Failure to notify penalties

For a director who was never registered, the main exposure is usually the failure-to-notify penalty rather than the fixed late-filing regime. It is a percentage of the "potential lost revenue", which broadly means the tax that went unpaid because HMRC did not know. The percentage depends on behaviour and on whether the disclosure is prompted:

• Non-deliberate: up to 30% of the lost tax. With an unprompted disclosure the minimum can fall to 0% if HMRC learns of it within 12 months of the tax becoming unpaid, and to 10% if later. A prompted disclosure carries minimums of 10% and 20% respectively.
• Deliberate: up to 70%, with a 20% minimum for unprompted disclosure and higher minimums once prompted.
• Deliberate and concealed: up to 100%.

Reductions within those ranges depend on the quality of disclosure: telling HMRC, helping it quantify the tax, and giving access to records. That is why the reconstruction work described below matters financially, not just administratively.

Late filing and late payment penalties

Where HMRC has issued a notice to file and the return arrives late, the published late filing penalties are an initial £100, daily penalties of £10 for up to 90 days after three months, then the greater of 5% of the tax due or £300 at six months, and again at twelve months. Late payment penalties of 5% of unpaid tax arise at 30 days, six months and twelve months. Late payment interest runs from the original due date, 31 January after the tax year, regardless of when you registered. Since April 2025 that rate has been set at the Bank of England base rate plus 4%.

How far back HMRC can go

The normal assessment window is four years, extended to six where the loss arose from careless behaviour. Where the loss arose from a failure to notify chargeability, the window can extend to 20 years unless there was a reasonable excuse. A founder whose company has been paying dividends since incorporation should therefore assume every dividend year is open, not just the last four.

Is "I thought PAYE covered it" a reasonable excuse?

Rarely on its own. HMRC's reasonable excuse guidance focuses on events outside your control, such as serious illness, bereavement or system failures, and it generally does not accept ignorance of the rules or reliance on someone else without more. There are genuine arguments in some cases. A director who gave full information to an adviser engaged to handle their personal tax, and was told in writing that no return was needed, is in a different position from one who never asked. If you hold correspondence of that kind, it belongs in the file before anything is submitted.

Even where a reasonable excuse is not available, the behaviour classification usually is. An owner-director who did not understand the interaction of payroll and dividends is typically non-deliberate, which caps the penalty at 30% and allows substantial reduction. Characterising the behaviour accurately at the outset is one of the most valuable things a preparer does.

Which disclosure route fits

There are two practical paths for UK-source income of this kind:

• Late registration and filing. For a small number of recent years, registering, receiving notices and filing the returns with a covering letter explaining the position is often proportionate. HMRC then assesses penalties and interest.
• A formal voluntary disclosure. Where several years are involved, where loan account or benefit issues complicate the picture, or where older years fall outside normal filing, HMRC's Digital Disclosure Service allows you to notify, then submit a single disclosure with calculations, an offer covering tax, interest and penalties, and a behaviour statement.

If HMRC has already written to you, for example a letter matching company dividend data to your record, the disclosure is prompted and the penalty floor rises. Acting before that letter arrives is worth real money. Because the income here is UK-source, the offshore penalty regime and the longer offshore time limits do not apply to the dividends themselves, but they can apply to any US accounts or income you also failed to report.

Reconstructing dividend vouchers and board minutes

The tax computation depends on knowing exactly what was declared and when. Many owner-managed companies have bank transfers labelled "dividend" with no supporting paperwork. Under company law, interim dividends are typically declared by the board and final dividends approved by shareholders, and a dividend can only be paid out of distributable profits. A payment made without available profits can be an unlawful distribution, which HMRC may treat as a loan or as earnings rather than a dividend.

Reconstruction must be honest. Where minutes are missing, the correct approach is a document prepared now that records decisions taken earlier and says so, supported by contemporaneous evidence such as management accounts, emails and bank statements. Backdated minutes presented as original records create a far bigger problem than the one being solved. Where the evidence shows a payment was not properly declared, it may need to be treated as a loan account withdrawal instead, with different UK and US consequences.

Checklist of records to assemble

• Statutory accounts and corporation tax computations for every year since the company began paying you.
• The dividend register, vouchers and board or shareholder minutes, or the evidence needed to reconstruct them.
• Company bank statements showing each dividend payment, with dates and amounts.
• Director's loan account ledger for each year, including year-end balances and any write-offs.
• Payroll records: P60s, final payslips and any P45s for each year.
• P11D forms, or a list of benefits the company provided if none were filed.
• Your shareholding history, including any shares held by a spouse or issued later.
• Personal UK and US bank, brokerage and pension statements, since every income source must go on the return.
• A day count or travel record for any year where UK residence is less than certain.
• Copies of every US Form 1040 filed, with any Forms 1116, 2555, 5471 and FBAR confirmations.
• Any HMRC correspondence, especially nudge letters or notices to file.
• Any written advice received about whether a return was required.

Worked example: four missed years

The following figures are illustrative only. Daniel is a US citizen who has lived in London since 2019 and is UK resident throughout. In 2021 he incorporated a UK consultancy, holding all of the shares. Each year he took a salary of £12,570 through payroll and the following dividends. He was never registered for Self Assessment and has no other income.

UK tax year	Dividends	Dividend allowance	Dividend rates (basic / higher)	Illustrative UK tax due
2021/22	£60,000	£2,000	7.5% / 32.5%	£9,925.00
2022/23	£80,000	£2,000	8.75% / 33.75%	£17,400.00
2023/24	£90,000	£1,000	8.75% / 33.75%	£21,440.75
2024/25	£100,000	£500	8.75% / 33.75%	£27,109.50
Total	£330,000			£75,875.25

Two points stand out. First, in 2023/24 and 2024/25 Daniel's total income exceeded £100,000, so his personal allowance tapered. Part of the salary that payroll treated as tax-free became taxable at 20% (£257 and £1,257 respectively), which is included above. Second, the dividend allowance shrank from £2,000 to £500 over the period, so the tax-free slice largely disappeared.

On the UK side, if Daniel's behaviour is accepted as non-deliberate and he discloses before HMRC contacts him, the three earlier years fall more than 12 months after the tax became due, so the penalty floor is 10%: roughly £4,877 on £48,765.75 of lost tax. The 2024/25 tax became due on 31 January 2026, so a disclosure made within 12 months of that date could attract a penalty as low as 0%. Late payment interest at the prevailing rates would add, very approximately, £10,000 to £11,500 by late 2026. Payments on account for 2025/26 may also be treated as having fallen due, with interest.

The US side is where the outcome improves. Daniel's US preparer reported the dividends each year as qualified dividends, but because no UK tax had been paid, there was no foreign tax to credit and Daniel paid US tax at the 15% qualified dividend rate. Once the UK tax is paid, it becomes a creditable foreign income tax. In each year, the UK tax on the dividends exceeds the US tax on them, so Form 1116 can eliminate most of the US tax on the dividends, subject to the limitation and the qualified dividend adjustment. Daniel can amend his US returns to claim refunds. The UK cost is real, but a substantial part of it is recovered from the IRS.

How the late UK figures feed the US Form 1040

Qualified dividends

Dividends from a UK company are generally eligible for the qualified dividend rates because the UK is a treaty country, provided the holding period is met and the company is not a passive foreign investment company. An active trading company owned by its working director will usually qualify, but confirm the classification rather than assume it.

Form 1116 and the timing of the credit

The UK tax paid on dividends is claimed on Form 1116. Several technical points apply to a catch-up:

• Which US year. Taxpayers using the accrual method take the credit in the US year in which the UK tax year ends, so UK tax for 2022/23 (ending 5 April 2023) relates to US tax year 2023, even though it was paid in 2026. Cash-method taxpayers claim in the year paid, which can strand credits against years with no matching income. Electing the accrual method is often the better course, and once made it is binding.
• Exchange rate. Accrued foreign taxes are normally translated at the average rate for the year, but tax paid more than two years after the close of the US year to which it relates is translated at the spot rate on the date of payment.
• Refund window. Refund claims attributable to foreign tax credits have a ten-year limitation period from the original due date of the return for the year in which the foreign tax was paid or accrued, far longer than the usual three years. Amendments are made on Form 1040-X.
• Category. Dividends from a controlled foreign corporation to its US shareholder are subject to look-through rules, so they are often general category income rather than passive. Getting the basket wrong distorts the limitation.
• Qualified dividend adjustment. Foreign-source qualified dividends taxed at preferential US rates are scaled down in the Form 1116 limitation, which reduces the creditable amount.
• Net investment income tax. The IRS position is that foreign tax credits do not offset the 3.8% net investment income tax. Treaty-based arguments have been litigated with mixed results and should be considered carefully.

Form 5471 consistency

As the US owner of a UK company, Daniel should have filed Form 5471 each year. The dividends and salary declared on the UK returns must agree with the distributions and related-party transactions shown on it, and the earnings and profits figures determine whether a distribution is taxable or previously taxed. Where an earlier GILTI or Subpart F inclusion was reported, part of the distribution may be previously taxed earnings that are not taxed again. A mismatch between the UK return, the company accounts and the Form 5471 is exactly the kind of inconsistency that undermines a disclosure in either country.

Director's loan accounts and Section 956

This is the most overlooked US trap. A loan from a controlled foreign corporation to its US shareholder can be an investment in US property under Section 956, potentially requiring the shareholder to include an amount in income even though no dividend was declared. An overdrawn loan account that the UK side resolves by declaring a dividend or writing off the balance must therefore be modelled on both sides before anything is filed, using the UK director's loan rules alongside the US analysis.

If US information returns were also missed

Many owner-directors who missed UK returns also missed Form 5471, FBARs for company accounts over which they have signature authority, or Form 8938. Non-wilful US filers resident abroad can often regularise through the Streamlined Foreign Offshore Procedures, which require three years of amended or delinquent returns and six years of FBARs. Our IRS streamlined filing team coordinates that submission so the UK tax figures are already settled when the US returns are prepared.

Order of operations: fix the UK first, then the US

Because the US credit depends on the UK liability, the UK side is generally finalised first. A typical sequence:

1. Gather company and personal records, and reconstruct dividend and loan account history.
2. Establish UK residence for each year and confirm all income sources.
3. Prepare draft UK computations for every open year, including allowance tapering and benefits.
4. Assess behaviour and disclosure route, then register or notify HMRC.
5. Submit the UK returns or disclosure and pay, or agree a time-to-pay arrangement.
6. Prepare US amended returns with Form 1116, Form 5471 corrections and, if needed, a streamlined submission.
7. Report any later change to the UK tax as a foreign tax redetermination on the US side.

Doing this in reverse, filing US returns first without the UK numbers, usually means amending them a second time. For founders with substantial wealth tied up in their company, the professional cost of a coordinated approach is small relative to the credits involved. Our US-UK tax accountants and high-net-worth tax team handle both returns within one engagement, and further reading is in our cross-border tax guides.

Speak to a cross-border preparer before HMRC writes

If you are an American director-shareholder who has paid yourself dividends without filing a UK return, the position is usually far more recoverable than it feels, provided it is dealt with before HMRC makes contact and with the US consequences modelled at the same time. We prepare the UK returns or disclosure, reconstruct the supporting records and amend the US returns to claim the credits that follow. To arrange a confidential consultation, contact our cross-border team.