Why a Loan Note Rollover Works Differently for an American Seller
A loan note rollover lets the seller of a UK company take part of the price in the buyer's IOUs and defer British capital gains tax until those notes are redeemed. For a British seller, that is routine planning. For an American seller, however, the same paper sits inside a second tax system with different rules on timing, currency, default and reporting. Consequently, a structure your corporate lawyers regard as standard can leave you paying tax in Britain on money you never receive.
The good news is that the two systems can line up better than most sellers fear. Specifically, the US instalment method defers American tax on loan notes by default, so a plain deferral on both sides often produces a clean foreign tax credit. The danger lies in the exceptions, and a typical deal document contains at least three of them.
At TaxYork we review loan note terms for American owners of British companies before heads of terms are signed. In our experience, the costly mistakes come from choices nobody thought were tax choices: the currency clause, the redemption right, the bank guarantee and the relief election.
What a Loan Note Rollover Means in a UK Company Sale
A loan note rollover occurs when you exchange shares in your company for debt securities issued by the buyer, instead of taking cash. British tax law then treats the exchange as a reorganisation rather than an immediate disposal, so the gain is deferred into the notes.
Buyers like loan notes because they spread the cash cost of an acquisition. Meanwhile, sellers like them because the tax falls due only as the cash arrives. Therefore loan notes appear in management buyouts, private equity exits and trade sales where the buyer's funding is tight.
The mechanics of a loan note rollover sound simple. Nevertheless, the treatment splits sharply depending on whether the notes are qualifying corporate bonds, and that single classification drives almost every outcome in this article.
Who This Affects
This guide is written for US citizens and green card holders who own shares in a British private company and are negotiating a sale. Typically, you live in the UK, you have paid UK tax for years, and your US return already carries Forms 5471 or 8938.
It also applies to a loan note rollover if you live in the United States and still hold shares in a British company you founded. Accordingly, the same collision arises from the other direction, although the credit position differs. Where relevant, we flag the difference.
The UK Rules: QCBs, Non-QCBs and the Frozen Gain
Britain offers two quite different versions of a loan note rollover. Understanding which one your buyer has drafted is the first job in any review.
Qualifying Corporate Bonds and Section 116(10)
Most standard loan notes are qualifying corporate bonds, or QCBs. A QCB is a sterling-denominated debt security that represents a normal commercial loan. Crucially, QCBs are exempt assets for capital gains tax, so no gain or loss arises on them directly.
Because the notes themselves are exempt, Parliament had to capture the gain on a QCB loan note rollover another way. Accordingly, section 116 of the Taxation of Chargeable Gains Act 1992 computes the gain on your shares at the date of exchange and freezes it. Subsequently, the frozen gain comes into charge when you dispose of the notes, usually on redemption.
The frozen amount does not shrink if the notes lose value. As the Tax Insider analysis of loan note consideration explains, there is no statutory mechanism for unwinding the charge if the notes become irrecoverable. Hence a QCB carries full UK tax exposure on consideration that may never be paid.
Non-Qualifying Bonds and the Section 135 Rollover
Non-qualifying corporate bonds, or non-QCBs, follow a different path. Under section 135 of the same Act, the notes are treated as the same asset as your old shares. Therefore your original base cost simply carries across into the notes.
No gain is frozen. Instead, the gain arises on redemption, measured against the base cost you inherited. Importantly, if the notes turn out to be worthless, the real economic loss follows through into the capital gains computation, because non-QCBs are chargeable assets.
That difference makes a non-QCB loan note rollover the most valuable protection available to a seller who doubts the buyer's credit. Moreover, it costs nothing to draft, provided you ask before the documents are finalised.
The Currency Clause That Changes Everything
What turns a QCB loan note rollover into a non-QCB one is usually a single sentence. Under section 117, a QCB must be expressed in sterling with no provision for conversion into, or redemption in, another currency. Consequently, a right to redeem in US dollars at a fixed exchange rate takes the notes outside the QCB regime.
One detail catches drafters out. Section 117(2)(b) disregards a provision for redemption in another currency at the rate prevailing at redemption. Therefore a dollar option at the spot rate leaves the notes as QCBs, and only a fixed-rate option achieves non-QCB status.
For an American seller, a genuine dollar option can also be commercially attractive in its own right. Specifically, it reduces the currency risk that the US system would otherwise tax separately, as we explain below.
The 2026 Anti-Avoidance Gate
A non-QCB rollover depends on section 135, and section 135 depends on the anti-avoidance test in section 137. Finance Act 2026 rewrote that test. The old "bona fide commercial reasons" wording has gone, and the rule now bites if one of the main purposes of the arrangements is to reduce capital gains tax.
HMRC's June 2026 guidance indicates that ordinary commercial deferral should continue to work. Nevertheless, advance clearance under section 138 remains the sensible course for any significant loan note rollover. Additionally, the clearance application should describe the currency clause honestly rather than leaving HMRC to discover it.
Business Asset Disposal Relief and the Loan Note Rollover
Deferral used to preserve relief automatically. That changed in 2010, and today a loan note rollover usually forfeits business asset disposal relief unless you elect otherwise.
Section 169R for QCBs
Business asset disposal relief now charges 18 per cent on the first £1 million of qualifying lifetime gains, following the increase from 14 per cent on 6 April 2026. By the time a frozen QCB gain crystallises, however, you no longer own shares in a trading company. Hence the relief is normally lost.
Section 169R offers the fix. HMRC's manual at CG64161 confirms that you may elect for the gain not to be deferred, so it is charged at the time of the exchange and the relief can be claimed. Notably, the manual page still refers to the old 10 per cent rate, which shows how stale much of the published guidance has become.
The election is all-or-nothing. Furthermore, it must be made by the first anniversary of the 31 January following the tax year of the exchange. Consequently, you must decide within about 22 months, often long before you know whether the buyer will pay.
Section 169Q for Non-QCBs
Non-QCBs have an equivalent. Section 169Q lets you disapply the reorganisation treatment and crystallise the gain at the exchange, again so the relief applies at 18 per cent. HMRC's guidance at CG64175 sets out the mechanics.
Both elections share one drawback. They convert a deferred liability into an immediate one, payable on 31 January after the tax year of sale. Therefore you pay British tax years before the cash arrives.
Why the Lifetime Limit Usually Settles It
For sellers of valuable companies, the decision is often simpler than it looks. The £1 million lifetime limit is usually consumed by the cash paid on completion. Accordingly, an election over the loan note element saves nothing, because no relief remains to claim.
At 18 per cent against a main rate of 24 per cent, the relief is now worth only six points, or £60,000 on a full £1 million. As a result, the election rarely justifies accelerating tax on a large loan note rollover, and it can do real damage on the US side.
The US Rules: One Sale, Paid in Instalments
The United States ignores the QCB distinction entirely. Instead, when it looks at a loan note rollover, it sees only a sale of shares for a mixture of cash and the buyer's promises to pay.
Section 453 Applies by Default
Under section 453, a sale where at least one payment falls after the year of sale is reported on the instalment method automatically. You recognise gain as principal is collected, in proportion to the gross profit on the deal. The IRS explains the method in Publication 537 on instalment sales, and you report it on Form 6252.
This default is the reason a loan note rollover can work well for an American. Britain defers the note gain until redemption, and America defers it until collection. Therefore both charges tend to fall in the same years, which is exactly what the foreign tax credit needs.
You can elect out of that treatment for a loan note rollover. Under section 453(d), a timely election on the return for the year of sale pulls the entire gain into that year. Consequently, the election out becomes valuable when the UK charge has been accelerated, as it is after a section 169R election.
When the Notes Count as Payment
The buyer's own notes are not payment. However, the regulations at 26 CFR 15a.453-1 treat a note as payment if it is secured directly or indirectly by cash or a cash equivalent. Hence a loan note backed by a cash deposit in escrow is taxed in the US on completion, while Britain still defers it.
A bank guarantee behaves differently. The regulations treat a standby letter of credit as a third-party guarantee, and a guaranteed note is not payment. Accordingly, you can protect yourself against default without accelerating US tax, provided the security is a guarantee rather than cash collateral.
Notes that are payable on demand, or readily tradable, also fall outside instalment treatment. UK loan notes often let the holder demand redemption on each interest date. Therefore the more freely you can call for repayment, the stronger the argument that the notes count as payment when issued.
The Section 453A Interest Charge Above $5 Million
Deferral under a large loan note rollover is not free. Under section 453A, where the sale price exceeds $150,000 and your outstanding instalment obligations exceed $5 million at the year end, you pay an annual interest charge on the deferred tax.
A £4 million loan note tranche converts to roughly $5.4 million at recent exchange rates. Consequently, a mid-sized British exit can cross the threshold without anyone noticing. Additionally, pledging the notes as security for a bank loan triggers a separate rule treating the loan proceeds as payment.
Imputed Interest and Section 988 Currency Swings
Two further rules convert capital into ordinary income on a sterling loan note rollover. First, if the notes carry inadequate stated interest, section 1274 recharacterises part of each principal payment as interest taxed at ordinary rates of up to 37 per cent. Zero-coupon loan notes are the usual culprit.
Second, sterling notes are foreign-currency debt instruments under section 988. Your capital gain is fixed in dollars at completion, while any movement in sterling between completion and collection produces separate ordinary exchange gain or loss. The IRS practice unit on nonfunctional currency transactions sets out the framework, and HMRC takes no account of it at all.
Where the Two Systems Collide
Now put the two sets of rules side by side. In some scenarios a loan note rollover aligns neatly, and in others it leaves UK tax with nothing to credit against.
Timing: When Alignment Actually Works
With a plain QCB loan note rollover and no relief election, Britain taxes the frozen gain on redemption, and America taxes the same gain on collection. Hence both liabilities arise in the same tax years, and the UK capital gains tax offsets US income tax through the foreign tax credit.
One condition applies to Americans living in Britain. A capital gain realised by a US citizen resident abroad is sourced abroad under section 865 only if foreign tax of at least 10 per cent is paid on it. At 24 per cent the test is comfortably met. Nevertheless, the 3.8 per cent net investment income tax is never creditable, so it remains a real cost on every tranche.
The Worthless QCB Trap
Default is where the two treatments of a loan note rollover diverge most painfully. If the buyer fails, Britain still charges the frozen QCB gain in full. Conversely, America never taxes a gain it never collects, because instalment gain is recognised only on payment.
The result is British tax on phantom proceeds, with no US income to set it against. The unused credit carries back one year and forward ten, but it can only absorb US tax on future passive-category foreign income. Therefore most sellers never use it.
A non-QCB avoids the trap on the British side, because the loss flows through. Accordingly, the currency clause that creates non-QCB status is often the single most valuable drafting point for an American seller who doubts the buyer.
The Section 169R Mismatch and the 453(d) Fix
A relief election on a loan note rollover creates the opposite problem. Britain taxes the loan note gain in the year of sale, while America waits for the cash. Consequently, the UK tax arrives years before the US income it should shelter.
The section 453(d) election out solves this cleanly. It accelerates the US gain into the same year, so the credit matches. However, it also forfeits US deferral on a debt you may never collect, which is why the election decision and the bond classification must be taken together.
Reporting the Notes: Form 8938, Not FBAR
Every loan note rollover also creates a reporting obligation that sellers routinely miss. Specifically, they become foreign financial assets in your hands the moment they are issued.
Why the Notes Belong on Form 8938
A loan note issued by a British company is a debt security of a foreign issuer. Held directly rather than through a custodian account, it is not an account for FBAR purposes. However, it is a specified foreign financial asset for Form 8938.
For Americans living abroad, reporting begins at $200,000 at year end or $300,000 at any time for a single filer, and double those figures for joint filers. The Form 8938 instructions confirm that securities of foreign issuers are included. Consequently, a single loan note tranche takes most sellers far beyond the threshold.
Missed Reporting and How to Fix It
A missed Form 8938 carries a $10,000 penalty, rising by up to $50,000 for continued failure after IRS notice. Additionally, the assessment period on the whole return stays open until the form is filed.
If you completed a loan note rollover in an earlier year and never reported the notes, the position is fixable. Our FBAR and FATCA reporting service regularises missed forms, and the right route depends on whether the omission was non-wilful.
A Worked Example: An £8 Million Exit Half in Loan Notes
Consider Daniel, an American citizen resident in London. He owns all the shares in a UK engineering company, with a negligible base cost. In May 2026 he agrees a sale for £8,000,000: £4,000,000 in cash on completion and £4,000,000 in QCB loan notes, redeemable in two equal tranches in 2028 and 2029, carrying 6 per cent interest.
The Base Case
On the cash element, Daniel claims business asset disposal relief. The first £1,000,000 attracts 18 per cent, or £180,000, and the remaining £3,000,000 attracts 24 per cent, or £720,000. His UK tax for 2026-27 is therefore £900,000.
In the US, the £4,000,000 cash gain attracts 20 per cent, or £800,000, plus net investment income tax of £152,000. The £900,000 of UK tax covers the £800,000 fully, leaving £100,000 of excess credit. Accordingly, his only US cash cost in 2026 is the £152,000 of net investment income tax.
Each £2,000,000 redemption then costs £480,000 of UK tax at 24 per cent, since his lifetime relief is already spent. The US charges £400,000 plus £76,000 of net investment income tax in the same year, and the UK tax covers the £400,000. Therefore the loan note rollover aligns perfectly, and his combined cost across the deal is £2,164,000, or 27 per cent.
When the Buyer Defaults
Now assume the buyer repays the 2028 tranche but collapses before 2029. Britain still charges the frozen gain on the second tranche, costing Daniel £480,000 on £2,000,000 he never receives. Meanwhile, the IRS charges nothing, because nothing was collected.
That £480,000 becomes an excess foreign tax credit with no US income to absorb it. Moreover, a section 453A interest charge applied throughout, because his outstanding notes of roughly $5.4 million exceeded $5 million at the end of 2026. As a result, default costs Daniel far more than the lost principal.
The Non-QCB Alternative
Suppose instead the notes had carried a right to redeem in dollars at a fixed rate. The notes then become non-QCBs, and the gain rolls over under section 135. On default, the second tranche simply produces no gain, because the notes are worth nothing.
Daniel pays no British tax on money he never received, and the American position is unchanged. Therefore the non-QCB structure saves £480,000 in the default scenario while costing nothing if the buyer pays. Additionally, a fixed dollar rate removes most of the section 988 currency exposure.
Structuring a Loan Note Rollover Before You Sign
Every protection in a loan note rollover must be negotiated before completion. Afterwards, the classification is fixed and the elections run on statutory deadlines.
Choosing the Bond Type
Ask first whether the notes are QCBs or non-QCBs, and why. For an American seller who doubts the buyer's credit, non-QCB status is usually the better default. However, it requires section 138 clearance and careful drafting of the currency clause.
Where the buyer is strong and relief remains unused, a QCB with a section 169R election can still make sense. In that case, pair it with a section 453(d) election out so that both charges fall in the same year.
Security That Does Not Trigger Payment
Push for a bank guarantee or standby letter of credit on your loan note rollover rather than a cash escrow. The guarantee protects you against default without accelerating US tax. Conversely, cash collateral turns the notes into payment for US purposes on day one, while Britain still defers.
Check the redemption rights too. Holder redemption on short notice strengthens the payable-on-demand argument, so fixed redemption dates are safer. Our treaty and foreign tax credit analysis models each option before your lawyers commit to one.
Aligning the Elections
Map every loan note rollover election to a year on both sides before you sign. Section 169R or 169Q decides when Britain charges, and section 453(d) decides when America does. Consequently, the two decisions belong in the same conversation.
A loan note rollover rarely stands alone. Many deals also contain an earn-out, which runs the opposite way, and our guide to earn-out tax on a UK company sale explains that collision. Similarly, managers reinvesting in the buyer face the issues covered in our guide to management incentive rollover, while a US corporate buyer raises the Section 338(g) election risk.
How TaxYork Can Help
We prepare American and British returns for company owners on both sides of the Atlantic, and we review sale documents before they are signed. Specifically, we model each consideration structure under both systems, including default, currency and election scenarios.
After completion, our US tax return preparation covers Form 6252, the section 453A computation, Form 1116 and Form 8938. Additionally, we coordinate with your UK advisers on clearance, relief elections and redemption timing, so that neither return is prepared in isolation.
Professional bodies publish useful background. See the ICAEW tax resources, the Chartered Institute of Taxation, the AICPA tax section and the US Treasury's treaty resources. The statutory text of section 988 is also available from the US Government Publishing Office.
Conclusion
A loan note rollover can serve an American seller well, because the US instalment method defers tax in step with British deferral. However, the alignment depends on details that UK-focused advisers rarely examine: the QCB classification, the currency clause, the form of security, the redemption rights and the relief election.
Get those right and the foreign tax credit works tranche by tranche. Get them wrong and you can pay British tax on money you never receive, with no American income to credit it against. Ultimately, the decisions that matter are taken at heads of terms, not at redemption.
Contact Us
If you are negotiating a sale that includes loan notes, or you already hold notes from an earlier exit, speak to us before the next redemption date. You can book a consultation with our cross-border team, email hello@taxyork.com, or telephone 020 3488 8606.
Disclaimer
This article provides general information about US and UK tax rules and does not constitute tax advice. Tax treatment depends on your individual circumstances and on legislation that changes frequently. You should obtain professional advice before acting on any point discussed here.