US Tax Return Preparation for Expats: FEIE 30% Capital Rule

Under section 911(d)(2)(B), where both personal services and capital are material income-producing factors in an unincorporated business, only a reasonable allowance for the owner's services — capped at 30 percent of the share of net profits — is earned income. It is the point most often missed in US tax return preparation for expats who own a business.

The assumption that causes the problem is an understandable one. An American who has built a restaurant group in London, a wholesale business in Manchester or a partnership interest in a manufacturing firm works long hours for the profit and thinks of every pound of it as earned. The Internal Revenue Code does not. It asks what produced the income, and where the answer is partly the owner's labour and partly the stock, premises and equipment the owner has put to work, it permits only a limited slice to be treated as foreign earned income. At Jungle Tax we see the consequence regularly in catch-up work: several years of Form 2555 on which the whole profit was excluded and no foreign tax credit was claimed on the balance.

This guide sets out how the rule works, where it sits on the return, how it interacts with the rest of the computation, and how prior years are corrected. It is written from a return-preparation and compliance perspective.

What is the FEIE 30 percent capital rule?

The foreign earned income exclusion applies only to foreign earned income: wages, salaries, professional fees and other amounts received as compensation for personal services actually rendered. Business profit sits awkwardly within that definition, which is why the IRS classifies it as a variable category that may be earned, unearned or a mixture of the two. Its page on what counts as foreign earned income lists business profits alongside royalties and rents in that variable group.

The statute and Treasury Regulation 1.911-3(b) resolve the mixture with a three-part test for a trade or business that is not carried on through a corporation:

• Services only. If capital is not a material income-producing factor and the income is produced by personal services, the whole of the business income is earned income.
• Services and capital. If both are material, a reasonable allowance as compensation for the personal services the individual actually rendered is earned income, but the total so treated may in no case exceed 30 percent of the individual's share of the net profits.
• Capital only. If the individual renders no personal services, none of the profit is earned income, whatever the size of the share.

Two features of the middle limb are routinely misread. First, 30 percent is a ceiling and not a safe harbour. The starting point is the reasonable value of the services performed; the ceiling then caps it. An owner whose services are reasonably worth less than 30 percent of the net profit is limited to the lower figure. Second, the test is applied to the individual's share of net profits, so each partner in a partnership is tested on his or her own distributive share and own services.

Which businesses are capital-intensive, and which are not?

Whether capital is a material income-producing factor is a question of fact, decided on the character of the business and not on its legal form or the owner's working hours. The practical question is whether a substantial part of the gross income is attributable to the use of capital — goods bought and resold, plant that manufactures, premises that seat customers, money that earns interest — as opposed to fees for the owner's own skill and time.

Businesses where capital is usually material

• Retail, wholesale and distribution, where income arises from buying and selling trading stock.
• Manufacturing and food production, where plant and machinery do much of the work.
• Property-heavy hospitality, such as restaurants, hotels, bars and event venues, where premises, fit-out and inventory generate revenue.
• Farming, haulage, plant hire and construction contracting that depends on significant owned equipment.
• Lending and financing, where the return is on money employed.

Businesses where capital is usually incidental

• Fee-earning professionals: lawyers, doctors, architects, accountants, management consultants.
• Independent contractors and interim executives billing for their own time.
• Writers, designers, performers and other creatives paid for services, where equipment is a tool and not a source of income.

The regulation deals expressly with professionals. All fees received by an individual engaged in a professional occupation are earned income, and they remain so even where the individual employs assistants to perform part or all of the services, provided the clients or patients are those of the individual and look to that individual as the person responsible. A laptop, a leased office and professional indemnity cover do not turn a consultancy into a capital business.

IRS Publication 54 illustrates the two ends of the range. In broad terms, its examples describe a partner in a merchandise-selling partnership who performs no services, whose entire share is unearned; the same partner who does work in the business, whose earned income is the value of the services where that is lower than 30 percent of the share of profits; and two management consultants in partnership, for whom capital is not a factor and the whole of the income is earned. The text is in IRS Publication 54.

The difficult cases are hybrids: the architect who also develops sites, the chef-proprietor, the software consultant who sells hardware, the dental practice with substantial owned equipment. These require a documented judgement, made once and applied consistently year to year.

How does the rule apply to a sole trader, a partner and a company owner?

Sole trader reporting on Schedule C

A UK sole trader who is a US citizen reports the business on Schedule C of Form 1040. If capital is material, the earned income is the reasonable allowance for services, capped at 30 percent of net profit. The IRS instructions to Form 2555 add a detail that is easy to overlook: the ceiling is measured against the share of net profits after subtracting the deduction for the employer-equivalent portion of self-employment tax, where self-employment tax is payable.

Partner's distributive share and guaranteed payments

A partner is tested on his or her own distributive share of the partnership's net profits. Where capital is material to the partnership's business, the partner's earned income from the distributive share is the reasonable allowance for that partner's own services, subject to the 30 percent ceiling. A limited or sleeping partner who performs no services has no earned income from the firm.

Guaranteed payments made to a partner specifically for services, determined without regard to partnership income, are a different item from the distributive share. They are in the nature of compensation for services, and there is Tax Court authority for treating them as earned income outside the 30 percent ceiling. The position depends on the partnership agreement and on what the payments are in fact for, so it should be supported by the agreement and reviewed before it is relied on in a return. Guaranteed payments for the use of capital are not earned income.

Owner-employee of a company

The 30 percent rule does not apply to a business carried on through a corporation. A shareholder-director of a UK limited company is instead tested on the character of each payment received. Salary and bonus that represent reasonable compensation for services performed are earned income. Dividends and other distributions of the company's earnings and profits are never earned income, however active the shareholder. The return-preparation consequence is that a UK owner-manager paid a modest salary with the balance as dividends has little foreign earned income to exclude, and the dividend is dealt with through the foreign tax credit. The company itself may also bring separate US information reporting.

What happens in a loss year?

The ceiling is 30 percent of net profits. Where there are no net profits there is nothing for it to bite on, and the IRS position is that the limit does not then apply. Instead, the part of the gross profit that represents a reasonable allowance for personal services actually performed is treated as earned income.

That produces a result many owners do not expect. Because the exclusion is applied against gross income and the expenses allocable to the excluded amount are then disallowed, a loss-making business can show a smaller loss on the US return than its accounts suggest. Publication 54 contains an example of exactly this: a business with a net loss, a service allowance treated as foreign earned income, and a substantial slice of business expenses denied as a result. A preparer who simply omits Form 2555 in a loss year should also consider whether doing so is consistent with an election already in force.

How does the 30 percent rule interact with the rest of the return?

Deductions allocable to excluded income

No deduction, exclusion or credit is allowed for an item properly allocable to excluded income. For a business owner this means the exclusion is applied to gross income, and business expenses are disallowed in the proportion that the excluded amount bears to gross receipts. Publication 54 applies the same method where the 30 percent rule is in point: the earned income figure is expressed as a percentage of gross income, and that percentage of the expenses is denied. The deductible part of self-employment tax is treated as allocable in the same way; the foreign housing deduction is not. The disallowed total is reported on line 44 of Form 2555.

Self-employment tax

The exclusion is an income tax relief only. Self-employment tax is computed on the full net profit from the business regardless of how much is excluded and regardless of how the profit is split between earned and unearned for section 911 purposes. For an American resident and self-employed in the United Kingdom, the US-UK totalization agreement generally allocates social security coverage to the UK, so that National Insurance is paid and US self-employment tax is not. That outcome is evidenced by a certificate of coverage obtained from HMRC, which should be on file before the return is prepared on that basis.

Foreign housing deduction

Self-employed individuals claim a foreign housing deduction in Part IX of Form 2555 instead of the housing exclusion available to employees. The deduction cannot exceed foreign earned income less the foreign earned income exclusion and any housing exclusion. The 30 percent rule matters here because it shrinks foreign earned income: where the capped earned income is fully absorbed by the exclusion, there is no headroom for a housing deduction in that year. An unused amount may be carried to the following year only.

Foreign tax credit scale-down on Form 1116

Foreign income tax attributable to excluded income is not creditable. Where part of the business profit is excluded and part is not, the UK tax on that profit is scaled down on Form 1116 by reference to the excluded amount, net of the deductions allocable to it, over the total foreign earned income net of deductions. The portion of profit that the 30 percent rule keeps outside the exclusion therefore carries its full share of creditable tax. The current form and instructions are on the IRS Form 1116 page.

Stacking

Excluded income is still taken into account in determining the rate of tax on the remainder. The profit left in taxable income is taxed at the rates that would have applied had nothing been excluded.

Where does it show on Form 2555?

The mechanics run through four parts of the form, and a reviewer can test a prior return against them in a few minutes.

• Part IV, line 20 — allowable share of income for personal services performed, with one entry for a business or profession and one for a partnership. This is where the 30 percent computation lands. A figure here equal to the full Schedule C net profit of a trading business is the warning sign.
• Part VIII, line 44 — deductions allocable to the excluded income, including the proportionate Schedule C expenses.
• Part IX — the housing deduction for self-employed claimants and any carryover from the previous year.
• The exclusion limit — the IRS confirms a maximum exclusion of $130,000 for tax year 2025 and $132,900 for tax year 2026, pro-rated for qualifying days.

The line-by-line wording is in the IRS Instructions for Form 2555.

How does the UK tax the same profit?

The United Kingdom draws no line between the earned and unearned parts of a trading profit. A UK-resident sole trader or partner pays income tax on the whole of the taxable profit at the basic, higher and additional rates, together with Class 4 National Insurance. For 2026 to 2027, HMRC's published Class 4 rates are 6 percent on profits between £12,570 and £50,270 and 2 percent above that, as set out on the GOV.UK self-employed National Insurance rates page.

The cross-border consequence is the part generalist pages leave out. Because the UK charges the full profit, and at rates that for a successful business usually exceed the US rates on the same income, the UK income tax paid ordinarily covers the US income tax on the 70 percent or more that cannot be excluded. The 30 percent rule seldom produces a large US cheque for a UK resident. What it produces is a different return: a smaller Form 2555, a Form 1116 that must be present and correct, and a credit computation that has to cope with the mismatch between the UK tax year and the US calendar year. National Insurance is not an income tax and is not claimed as a foreign tax credit.

Point	United States (IRS)	United Kingdom (HMRC)
Earned and unearned split of business profit	Required. Where capital is material, earned income is a reasonable service allowance capped at 30 percent of the share of net profits	None. The whole trading profit is charged to income tax
Where reported	Schedule C or Schedule K-1, with Form 2555 Part IV line 20	Self Assessment self-employment or partnership pages
Social security charge	Self-employment tax on full net profit, unless covered by the UK under the totalization agreement	Class 4 National Insurance on profits above the lower limit
Company owner	Reasonable salary is earned income; dividends are never earned income	Salary taxed through PAYE; dividends taxed at dividend rates
Loss year	30 percent ceiling does not apply; a service allowance from gross profit is earned income	Trading loss computed under UK rules with its own relief claims
Relief for double taxation	Exclusion on the earned slice; foreign tax credit on the balance, scaled down for tax on excluded income	Primary taxing right over UK-source trading profit of a UK resident
Tax year	Calendar year	6 April to 5 April

Worked examples: a restaurant owner and a consultant

The figures below are hypothetical, rounded and in US dollars. They assume each individual qualifies for the exclusion for the full 2026 tax year, holds a certificate of coverage so that no US self-employment tax arises, and has no other foreign earned income.

Restaurant owner: capital is material

An American owns and runs a restaurant in London as a sole trader. Gross receipts are $1,000,000 and costs are $800,000, giving a net profit of $200,000. The premises, fit-out, kitchen equipment and stock are plainly material to the income.

• Reasonable allowance for the owner's services as full-time manager: say $85,000.
• Thirty percent of net profit: $60,000. The ceiling applies, so earned income is $60,000.
• That figure is below the 2026 limit of $132,900, so $60,000 is the amount excluded.
• $60,000 is 6 percent of gross receipts, so 6 percent of the $800,000 of expenses, $48,000, is allocable to excluded income and disallowed.
• Net effect: taxable business income falls by $12,000, from $200,000 to $188,000.
• On Form 1116, UK income tax on the profit is scaled down by 6 percent ($12,000 of $200,000); the remaining 94 percent is available as a credit against US tax on the $188,000.

A return that had simply removed the profit up to the annual limit would have understated US taxable income substantially and, in most such files, omitted the Form 1116 that would have covered the difference.

Consultant: capital is incidental

An American management consultant in London bills $300,000 in fees and incurs $40,000 of expenses, for a net profit of $260,000. Capital is not a material income-producing factor, so the 30 percent rule does not apply and the whole of the income is earned.

• Exclusion: limited to $132,900 for 2026, applied against gross income.
• $132,900 is 44.3 percent of the $300,000 gross, so 44.3 percent of the $40,000 of expenses, $17,720, is disallowed.
• Net effect: taxable business income falls by $115,180, from $260,000 to $144,820.
• UK income tax on the profit is scaled down by the same 44.3 percent on Form 1116, with the balance creditable.

Two businesses with broadly similar profits produce very different Forms 2555. In neither case, on these facts, would one expect residual US income tax once UK tax is credited — but only if the credit is actually claimed and correctly computed.

Why is moving to the foreign tax credit not a free choice?

An owner who sees how little the exclusion achieves for a capital-intensive business often asks whether Form 2555 can simply be dropped. It can, but doing so is a revocation of the section 911 election, and once revoked the exclusion cannot be claimed again for the next five tax years without IRS consent. The revocation can also occur by conduct, where foreign earned income is reported under a credit claim without the exclusion. Claiming the exclusion on the correct 30 percent slice and the credit on the remainder is not a revocation; abandoning the exclusion altogether is. Our separate guide to the five-year bar on re-electing the exclusion covers the mechanics in full.

How are prior returns corrected where 100 percent of the profit was excluded?

Where a capital-intensive business has been reported with the whole net profit on line 20, the earlier returns overstated foreign earned income. Correction is a matter of return preparation, carried out in a fixed order.

• Establish the character of the business for each year. Document why capital is, or is not, material, using the accounts: stock levels, fixed assets, premises, borrowings and the proportion of income from goods as against services.
• Determine the reasonable service allowance. Support it with evidence of what the role would command, then apply the 30 percent ceiling to each year's share of net profit.
• Recompute Form 2555. Restate line 20, the exclusion and the line 44 expense disallowance, and reconsider any housing deduction and carryover.
• Build Form 1116 for each year. Match UK income tax to the US calendar year, apply the scale-down for tax on the excluded slice, and track any credit carryovers. Where the earlier returns claimed no credit at all, this is usually where the tax is recovered.
• File amended returns on Form 1040-X for the open years. Interest runs on any additional tax, and accuracy-related penalties are a matter of fact and degree, so the explanation accompanying the amendment should be accurate and complete.
• Check the rest of the file. If the same years also lack FBARs, Form 8938 or other international information returns, the corrections are better dealt with together. Our IRS streamlined filing team handles that wider catch-up, and the FBAR penalty calculator indicates the reporting exposure.
• Align the UK side. The credit depends on UK tax actually paid, so the Self Assessment position should be confirmed for the same periods. Our UK tax return service prepares both sets of returns from one reconciled set of figures.

In most UK-resident files the corrected returns show little or no additional US income tax, because the credit absorbs what the exclusion should never have covered. The value of the exercise is that the returns become defensible and the credit carryovers are properly established.

Errors we see most often

• Entering the full Schedule C or K-1 profit of a trading business on line 20.
• Treating 30 percent as automatic without valuing the services actually performed.
• Applying the ceiling to a fee-earning professional for whom capital is incidental.
• Applying the ceiling to a company director's salary, or treating dividends as earned income.
• Excluding net profit and still deducting all the business expenses.
• Omitting Form 1116, or claiming credit for the whole of the UK tax without the scale-down.
• Leaving Form 2555 off a loss-year return without considering the existing election.
• Preparing the return on a no-self-employment-tax basis with no certificate of coverage on file.

Further technical notes on adjacent filing points are in our guides library, and our US-UK tax accountants prepare both countries' returns for business owners in exactly this position.

Speak to us in confidence

If you own or are a partner in a business abroad and your US returns have treated the whole profit as foreign earned income, the position is normally straightforward to put right once the figures are rebuilt in the correct order. We prepare current-year and amended US returns alongside the matching UK filings, with the Form 2555 and Form 1116 computations documented for each year. To discuss your file, contact our cross-border team for a confidential consultation.