How the Foreign Income and Gains (FIG) Regime Applies to U.S. LLC Members
If you live in the UK and own a U.S. LLC, your UK tax obligations depend on how HMRC classifies the LLC, not just the U.S. tax treatment. The UK taxes foreign income and gains earned by UK residents, even if the funds remain in a U.S. company or bank account.
This means you may need to pay UK tax on profits or capital gains generated by your U.S. LLC. The timing of that tax depends on whether HMRC treats the LLC as transparent (you pay tax as profits arise) or opaque (you pay tax when profits are distributed). If the same income is also taxed in the U.S., you can usually claim relief to avoid double taxation.
Understanding the FIG regime is essential for compliance and planning. Misclassification or incorrect reporting can lead to unexpected tax liabilities or penalties. Consulting a UK tax professional familiar with cross-border LLC taxation can help ensure your filings are accurate and optimise your overall tax position.
What Is the Foreign Income and Gains (FIG) Regime?
The UK’s Foreign Income and Gains (FIG) rules determine how UK residents are taxed on income earned outside the UK. Even if the funds remain overseas, UK residents are generally taxed on worldwide income and gains unless claiming the remittance basis.
Foreign Business Profits
Any profits from foreign businesses, including income generated through a U.S. LLC, are typically subject to UK tax. This ensures your overseas earnings are recognised and taxed correctly under the FIG regime.
Foreign Dividends, Interest & Rental Income
Dividends, interest, and rental income earned from non-UK sources must usually be reported and taxed in the UK. Even if these payments are retained abroad, they are considered taxable under UK rules for residents.
Gains from Foreign Assets
Capital gains arising from selling foreign property, shares, or investments, such as U.S. assets, are generally included in your UK tax liability. The timing of taxation depends on whether HMRC classifies your LLC as transparent or opaque.
How HMRC Classifies Your U.S. LLC
How the UK taxes your U.S. LLC depends on whether HMRC treats it as transparent or opaque. If it’s transparent, the profits are viewed as yours as they arise, and you report your share each year as foreign income. If it’s opaque, the LLC is treated like a separate company and you’re taxed only when profits are paid out to you.
Most U.S. LLCs are seen as opaque because they operate like companies — they have their own legal identity, can own assets, and protect members from liability. Therefore, the UK usually taxes them as foreign companies.
For a full breakdown of how HMRC classifies U.S. LLCs and how this affects UK tax, see our detailed guide on UK tax treatment of U.S. LLCs.
How the Remittance Basis Interacts with LLC Income
If you live in the UK but are not UK-domiciled, you may be able to use the remittance basis. This means you only pay UK tax on foreign income and gains if you bring the money into the UK. Otherwise, under the normal rules (the “arising basis”), you are taxed on your worldwide income as soon as you earn it, no matter where the money is kept.
How this affects U.S. LLC owners
If HMRC treats your U.S. LLC as opaque (which is common), profits inside the LLC are not taxed in the UK until you receive them. If your LLC is transparent, you may be taxed in the UK on your share of profits as soon as they are earned, even if you leave the money in the U.S. and never transfer it to the UK.
The remittance basis only works if the funds stay outside the UK. Once you move the money into the UK, tax is due.
When Foreign Gains Are Taxed
Foreign capital gains are profits made from selling assets outside the UK, such as U.S. property, U.S. business assets, or shares in a U.S. company or LLC.
If you are a UK-resident for tax purposes, the general rule is that you are taxed on worldwide capital gains, even if the assets are abroad and the money stays overseas. This comes from HMRC’s Foreign Income and Gains rules (RFIG45500).
The only major exception applies to non-domiciled residents who claim the remittance basis. In that case, foreign gains are only taxed if the money is brought into the UK.
How LLC Transparency Affects Capital Gains
When your U.S. LLC sells an asset, such as U.S. shares or property, who pays UK tax and when depends on whether HMRC treats the LLC as transparent or opaque.
If the LLC is transparent, HMRC treats the gain as yours personally. You pay UK tax in the tax year the gain occurs, even if you leave the money in the U.S.
If the LLC is opaque, the gain is treated as belonging to the LLC itself. You only pay UK tax when the profit is actually paid out to you, for example, as a dividend.
How to Calculate and Report Foreign Gains
To report a gain in the UK, you must follow these steps:
- Convert all amounts to GBP: Use official HMRC exchange rates at acquisition and sale.
- Calculate your gain: Gain = Sale proceeds – Purchase cost – Selling expenses.
- Apply the correct tax rate: Individuals: 10% or 20% depending on income level. Companies: Corporation Tax (currently 25%).
- Include the gain: On your U.K. Self Assessment or CT600 return.
Estimate Your Foreign Gain
Quickly calculate your foreign capital gain in GBP before reporting to HMRC.
Avoiding Double Taxation on U.S. LLC Income
If both the U.S. and the U.K. tax the same income or capital gain, you generally don’t pay tax twice. Instead, you can claim Foreign Tax Credit Relief under the U.S.-U.K. tax treaty. This offsets U.S. tax already paid against your U.K. tax liability on the same income.
To claim this relief, you must:
Provide Proof of U.S. Tax Paid
You must demonstrate that U.S. tax was actually paid, for example using an IRS tax return, W-2, or payment confirmation. Without proof, HMRC will not allow the credit.
Report the Same Income in the U.K.
The income or gain must also be included on your U.K. Self Assessment return. This ensures the foreign income is properly accounted for in the U.K. tax system.
Claim the Credit
Claim a credit for the U.S. tax already paid, up to the amount of U.K. tax due on that income. This prevents double taxation and ensures you only pay the higher of the two tax liabilities.
When Foreign Gains Are Taxed
Foreign capital gains are profits realised from selling assets outside the UK, such as U.S. property, U.S. business assets, or shares in a U.S. company or LLC. These gains are treated as part of your worldwide taxable income if you are a UK resident.
Generally, UK residents are taxed on all capital gains worldwide, regardless of whether the assets remain abroad or whether the proceeds are transferred to the UK. This is mandated under HMRC’s Foreign Income and Gains rules (RFIG45500), which aim to ensure that overseas gains are fairly accounted for.
The main exception applies to non-domiciled UK residents who claim the remittance basis. Under this approach, foreign gains are only taxed if the funds are brought into the UK. Careful planning is required to make the most of this option without breaching HMRC rules.
How LLC Transparency Affects Capital Gains
The UK tax treatment of capital gains from your U.S. LLC depends on whether HMRC classifies the LLC as transparent or opaque. This determines whether gains are considered yours personally or belong to the LLC as a separate entity.
If the LLC is transparent, HMRC treats the gain as your personal income. You must report and pay UK tax on it in the tax year it arises, even if the funds remain in the U.S. This ensures that profits are taxed in the same year they are generated.
If the LLC is opaque, the gain is attributed to the LLC itself. You are only taxed in the UK when the profit is distributed to you, for example, as a dividend. This distinction can affect timing, cash flow planning, and the interaction with U.S. tax obligations.
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