US UK Accountants for American Art Dealers in London

An American art dealer running a London gallery holds paintings as trading stock, not collectibles, so gallery profits are ordinary business income in both countries. The UK taxes them as trading profits or company profits; the US reports them on Schedule C or, for a UK company, Form 5471. Behind on US filings? Streamlined procedures usually resolve it.

That is the short answer. The detail is where galleries come unstuck, because the two systems value inventory differently, treat consigned works in ways most dealers never think about, and attach information returns to bank and sale-proceeds accounts that a busy gallery owner rarely connects with their personal US return. Specialist US UK accountants start by fixing the classification of the stock, then build both returns from one set of numbers, so that what you file in London and what you file with the IRS agree with each other.

This guide is written for US citizens and green card holders who deal in art from London, either as sole traders or through a UK limited company, and who have fallen behind on US returns, FBARs or Form 5471. It covers what most generalist pages leave out: why a dealer's position is completely different from a collector's, how consignment stock sits on each side of the Atlantic, and the order in which to catch up so that UK tax actually offsets the US liability.

Is a dealer's art inventory or a collectible?

For a dealer it is inventory. This one distinction drives almost every number that follows, and it is the point where dealers most often go wrong when they prepare US returns themselves or use a preparer who mainly serves collectors.

Under US law, property held primarily for sale to customers in the ordinary course of a trade or business is excluded from the definition of a capital asset by Internal Revenue Code section 1221(a)(1). A gallery that buys, holds and resells works with continuity and regularity, and mainly to make a profit, is a dealer. Its gains are ordinary income, taxed at ordinary rates, rather than collectibles gains taxed at the special maximum rate that applies to investors and collectors. In exchange, losses are ordinary and fully deductible, and running costs such as rent, insurance, framing, shipping, fairs and storage are ordinary business deductions.

The UK reaches the same place by a different route. A gallery that trades in art is carrying on a trade, and its profits fall within income tax (for a sole trader) or corporation tax (for a company), never capital gains tax. The chattels exemptions and wasting-asset rules a private collector might rely on simply do not apply to stock in trade. HMRC's Business Income Manual treats the works as trading stock, valued under the stock rules at each year end.

The dealer who also collects

Most serious dealers also own works they have no intention of selling. These are the hardest to report correctly. A piece that hangs at home, was never offered for sale, never appeared on a stock list and was bought with personal funds can be a capital asset held as a collector. A piece bought through the gallery, recorded in the stock book and shown at a fair is inventory, even if you have grown attached to it. The test on both sides looks at the evidence: how the item was acquired, how it was recorded and how it was held.

When we catch up a dealer's returns, we rebuild a stock register that separates gallery inventory from the personal collection, document when any work moved from one to the other, and treat that movement consistently in both countries. A work taken out of stock for personal use is generally a disposal at market value for UK trading purposes, and it needs matching treatment on the US side. If nobody makes this split, both returns are open to challenge.

Issue	Dealer (gallery stock)	Collector or investor
US character of gain	Ordinary income on Schedule C, or within the company	Capital gain, subject to the collectibles rate
UK character of gain	Trading profit (income tax or corporation tax)	Capital gain, possibly within the chattels rules
Losses	Ordinary, deductible against other income within the rules	Capital, subject to restrictions
Running costs	Deductible business expenses	Largely non-deductible
Year-end valuation	Required: stock valued under inventory rules	Not applicable
Self-employment or NIC exposure	Yes, for a sole trader	No

Sole trader or UK company: which US forms apply?

Your structure determines which US forms you file. Many dealers have trading histories that cross structures, for example several years as a sole trader followed by incorporation, so a catch-up can involve both.

Sole trader: Schedule C alongside UK Self Assessment

A US citizen trading personally in London reports the gallery's net profit on Schedule C of Form 1040, converted to dollars, and the same profit on the trading pages of the UK Self Assessment return. The UK now taxes sole traders on a tax-year basis (6 April to 5 April), following basis period reform, while the US return runs on the calendar year. Unless the gallery's accounts happen to match one system's year, profits have to be apportioned for at least one of the two returns. Apportioning in sterling first and converting afterwards avoids most of the reconciliation problems we see.

Three US points matter more for a gallery than for an ordinary self-employed expat:

• The foreign earned income exclusion is restricted. When both personal services and capital are material income-producing factors, which is plainly the case for a business that ties up substantial capital in stock, no more than 30 percent of the business's net profit can be treated as earned income for the exclusion. For most dealers the foreign tax credit is therefore the main tool, not the exclusion.
• Self-employment tax is usually avoidable. Under the US-UK totalisation agreement, a self-employed person resident in the UK generally pays only UK National Insurance. To claim this, you need a certificate of coverage from HMRC to support the return. Without it, the IRS can assess US self-employment tax on top of UK Class 4 contributions.
• Currency is a real calculation. A sterling-based business operated by a US individual is a foreign branch for US purposes. Exchange movements on stock bought in one year and sold in another, and on sterling balances held in the business, need consistent and documented treatment.

UK limited company: Form 5471 and the CFC rules

A gallery run through a UK limited company that you control is, for US purposes, a controlled foreign corporation. Each year you file Form 5471 with your personal return. It reports the company's income statement and balance sheet restated to US principles, its earnings and profits, transactions between the company and its shareholders, and the inclusions that flow onto your Form 1040. The penalty for a missing or incomplete Form 5471 is generally $10,000 per form, per year, before any further penalties, and the statute of limitations on the entire US return can stay open until it is filed.

The usual concern for gallery owners is the regime once called GILTI, renamed net CFC tested income (NCTI) for tax years beginning after 2025. NCTI can create a US inclusion from profits the company keeps to buy stock. For most UK galleries the high-tax exception is the key relief: income taxed abroad at more than 90 percent of the US corporate rate (an effective rate above 18.9 percent) can be excluded by election. With UK corporation tax at 25 percent at the main rate, and 19 percent on small profits, a profitable gallery company often qualifies. The test is applied to the effective rate calculated under US rules, however, so timing differences on stock write-downs can push a year below the line. Where the exception is not available, a section 962 election can let an individual claim credit for UK corporation tax. Either way, the election has to be modelled before the return is filed, not afterwards.

Galleries have one further trap: foreign base company sales income under subpart F. It is generally not an issue when the company buys from independent artists and sells to independent clients. It becomes a live question if the UK company buys works from, or sells them through, a related US entity you also own, for example a New York gallery or a US holding company, and the art is sold for use outside the UK. Dealers with galleries on both sides of the Atlantic should have those intercompany flows reviewed as part of any catch-up.

The company's own UK obligations sit alongside: annual accounts at Companies House, a corporation tax return with tagged accounts and computations, PAYE if you draw a salary, and VAT. Salary versus dividend policy feeds directly into the US return, because UK salary is earned income and dividends are treated as qualified or non-qualified depending on the treaty position.

How should gallery inventory be valued in each country?

Inventory valuation is where the US and UK figures for the same gallery move apart, and it is also where a sloppy catch-up does the most damage, because each year's closing stock is the next year's opening stock. One error carries forward through every year being reconstructed.

In the UK, HMRC accepts only two valuation bases for stock: the lower of cost and net realisable value, or mark to market. Last-in-first-out is not acceptable for tax. Net realisable value is the expected selling price in the normal market less the further costs of selling, and HMRC's guidance on net realisable value specifically rejects a forced-sale basis. A work that has sat unsold for years and whose market has softened can be written down. A work cannot be written down just because no sale has happened yet.

In the US, inventory is governed by section 471 and its regulations. Unique works lend themselves to specific identification of cost. A dealer may value at cost, or at the lower of cost or market, where market generally means current replacement cost. Smaller businesses that meet the gross receipts test for small business taxpayers can use simplified methods and are exempt from the uniform capitalisation rules. Larger galleries may have to capitalise a share of indirect costs, such as storage, conservation and handling, into inventory rather than deduct them straight away.

Point	UK (HMRC)	US (IRS)
Accepted bases	Lower of cost and net realisable value; mark to market	Cost; lower of cost or market; simplified methods for small business taxpayers
Meaning of "market"	Estimated selling price less costs to sell	Generally replacement cost, within limits
Write-downs	Permitted where net realisable value is below cost on a normal commercial basis	Permitted under lower of cost or market, or for subnormal goods offered at reduced prices
Indirect costs	Follow UK GAAP (FRS 102 or FRS 105)	Uniform capitalisation may apply above the small business threshold
Tax year	6 April to 5 April (sole trader); company accounting period	Calendar year for individuals

In practice, we keep one stock register in sterling, recording cost, date acquired, provenance file reference and any write-down with the reasoning behind it, and derive both valuations from it. Where the two bases give different closing values, the difference is tracked so it reverses properly when the work is eventually sold.

Consignment stock: whose inventory is it?

Much of what hangs in a London gallery belongs to someone else. Artists consign work, collectors consign pieces for resale, and dealers place works with other dealers. Getting ownership right matters in both countries.

The general rule is the same on both sides: goods held on consignment stay in the consignor's inventory until they are sold. A US regulation says this expressly for inventory purposes, and UK accounting reaches the same result by looking at who carries the risks and rewards of ownership. So:

• Works consigned to your gallery by an artist are not your stock. On a sale, your income is generally your commission, not the gross price, as long as the contract and the way you actually operate genuinely make you the artist's agent. Gross proceeds passing through your account do not make the work yours.
• Works you have consigned out to another dealer or a sale room stay in your inventory and must be counted at the year end, even though they are not on your premises.
• Works bought jointly with another dealer need a clear record of each party's share, and each partner includes only their share in stock.

VAT can follow different rules. A gallery acting for an artist may account for VAT only on its commission, or under the margin scheme for works of art where conditions are met. Imported works can carry import VAT at the reduced rate for art. VAT treatment does not alter the income tax analysis, but the VAT records are often the best evidence of how a transaction was actually structured.

When gallery records are thin, consignment is the most common reason reconstructed profits look wrong. Gross sales get booked as turnover, payments to artists get booked as purchases, and the stock count includes works the gallery never owned. Unwinding this, rather than filing the inflated figures, often reduces both the UK and US liabilities for the catch-up years.

Which gallery accounts go on the FBAR and Form 8938?

The FBAR (FinCEN Form 114) is required when the combined maximum value of your foreign financial accounts exceeds $10,000 at any point in the year. For a dealer, the list of reportable accounts is usually longer than expected:

• Business accounts in your own name as a sole trader: current accounts, deposit accounts and foreign currency accounts used for buying and selling.
• Artist or client money accounts you operate: a segregated account holding artists' sale proceeds pending payment is still an account over which you have signature authority or a financial interest, even though the money belongs to someone else.
• Company accounts: if you own more than 50 percent of the gallery company, you have a financial interest in its accounts, and as a director with signing powers you have signature authority as well.
• Payment platforms and card-acquiring balances that hold funds may need review, depending on how they are structured.

Balances held for you by a sale room or another dealer after a sale need careful analysis. A credit balance with a commercial business is not automatically a financial account, but arrangements that work like a deposit or custody account can be. We review the contract terms instead of assuming either way, and document the reasoning in the catch-up file.

Form 8938 is a separate return that sits inside your Form 1040. For US taxpayers living abroad, the thresholds are considerably higher than the FBAR threshold: for a single filer, more than $200,000 at the year end or more than $300,000 at any time during the year, with double those figures for married couples filing jointly. Shares in your UK gallery company are a specified foreign financial asset, although if the company is already reported on Form 5471 the duplicate detail is generally not repeated. Physical artworks held directly are not financial assets and do not go on either form. The IRS FBAR guidance sets out the account definitions, and our FBAR penalty calculator shows the potential exposure for unfiled years.

How do you catch up on both US and UK returns?

Order matters. The US liability depends on the UK tax actually charged, so the UK position is fixed first, and the US returns are built on it.

Step 1: rebuild the records

Reconstruct sales, purchases, consignment agreements, artist payments and year-end stock for every year in scope, from bank statements, invoices, VAT returns, stock books and fair records. Separate personal collection pieces from gallery stock.

Step 2: settle the UK position

For a sole trader, confirm that every Self Assessment return has been filed and agrees with the rebuilt accounts. Where profits were understated or a return was never filed, a voluntary disclosure to HMRC normally produces a better penalty outcome than waiting for HMRC to make contact. For a company, bring Companies House accounts and corporation tax returns up to date. UK penalties start at £100 for a late individual return and rise with time, and they are lower when disclosure is unprompted.

Step 3: choose the US route

Most American dealers who have lived in London for years and simply did not realise US filing continued qualify for the Streamlined Foreign Offshore Procedures. You file the last three years of US returns, including Schedule C or Form 5471 as applicable, and the last six years of FBARs, and certify that the failure was non-wilful. Where the non-residency test is met, the miscellaneous offshore penalty does not apply. If every return was filed and all tax paid, and only information returns such as Form 5471 or the FBAR are missing, the delinquent international information return or delinquent FBAR submission procedures may be more suitable. Our IRS streamlined filing team confirms eligibility before anything is submitted, because the certification is a statement made under penalty of perjury.

Step 4: prepare the US returns from the UK numbers

Convert the apportioned UK profits, align the inventory basis, apply the foreign tax credit by category and carry any excess credits forward. For a company, prepare Form 5471 for each year with the earnings and profits schedules and the NCTI and high-tax exception elections modelled. Attach the totalisation certificate where self-employment tax is in issue.

Step 5: put the forward process in place

Agree one year-end routine: a stock count, a valuation memo, a consignment reconciliation and an account list for the FBAR. That way the next return is not another reconstruction.

What does a typical catch-up look like?

Consider a US citizen who has run a contemporary gallery in London for eight years: four years as a sole trader, then through a wholly owned UK company. She has filed every UK return but no US returns since moving. Her gallery holds a mix of owned stock and artist consignments, and keeps a sterling current account, a client money account for artists' proceeds and a dollar account for overseas clients.

Her catch-up typically involves three years of Form 1040 with Form 5471 for the company years, a Schedule C for any sole trader year falling inside the window, six years of FBARs listing personal, business, client money and company accounts, and Form 8938 where her assets exceed the thresholds. Once consigned works are removed from turnover and stock, her reconstructed profits are lower than her bookkeeping suggested. UK corporation tax clears the high-tax threshold in most years, and UK income tax on her sole trader profits generates foreign tax credits that cover the US liability. The streamlined certification closes the past. The usual result in a case like this is little or no US tax, provided the returns are prepared in the right order and on the right basis.

Why a joint US-UK approach matters for galleries

Preparing a dealer's returns separately in each country produces mismatches: different stock values, different treatment of consignments, profits apportioned over incompatible years, and credits claimed against figures that do not reconcile. At Jungle Tax we prepare both sides from one ledger, so the UK return supports the US foreign tax credit and every information return ties back to the same accounts. Our wider US-UK tax accountants team handles the company, VAT and personal elements together, which is what a gallery with stock, consignors and clients in several currencies needs.

If you deal in art from London and have fallen behind on US returns, FBARs or Form 5471, the position is almost always recoverable, and usually at far less cost than dealers fear. Speak to us in confidence: contact our cross-border team to arrange a confidential consultation, and we will scope the years, the forms and the route before anything is filed.