US Personal Tax Services: PIK Loan Notes in a UK Buyout

A US citizen or green card holder who holds payment-in-kind (PIK) loan notes in a UK buyout is generally taxed by the IRS on the rolled-up interest every year as original issue discount, while HMRC usually taxes it only when it is paid or the note is redeemed. The result is tax on two timetables, in two currencies.

That mismatch is rarely explained to the manager at completion. The deal documents are written for a UK audience, the UK tax paper says that nothing happens until exit, and the US return is prepared without anyone asking whether the loan notes are accruing income. Our US Personal Tax Services work for executives in private-equity-backed UK companies starts with that question. At Jungle Tax we prepare the US and UK returns on both sides of the instrument, and we are often engaged when a refinancing or sale is announced and several years of accrued interest turn out never to have appeared on a Form 1040.

This guide deals only with interest-bearing notes in the institutional strip. Ordinary shares, ratchets and leaver terms are covered in our guide to sweet equity for American managers, and loan notes received as sale consideration are covered in our guide to earn-outs and loan notes on a UK company sale. It is a description of how the returns are prepared, not advice on how a deal should be structured.

What are PIK loan notes, and why do managers hold them?

In a typical UK buyout the investor puts most of its money into fixed-return instruments, usually unsecured shareholder loan notes carrying a coupon of perhaps 8% to 12%, and only a small amount into ordinary shares. Managers who reinvest sale proceeds, or who are asked to invest alongside the investor, often take a slice of the same fixed-return instrument. That slice is the manager's share of the institutional strip.

The coupon is almost never paid in cash, because the senior lenders will not allow it. Instead it is "paid in kind" in one of two ways, and the difference between them matters a great deal for UK tax:

• Capitalised or rolled-up interest. The interest is added to the principal at each interest date and itself bears interest. No new instrument is issued. The holder receives nothing until redemption.
• PIK notes issued in satisfaction of interest. At each interest date the company issues further loan notes with a face value equal to the interest due. The holder receives a new security in place of cash.

Commercially the two are identical. For a US return they are also treated in the same way. For a UK return they are not, as explained below. The first job in any engagement is therefore to read the loan note instrument and the company's board minutes to establish which mechanism is actually being operated, because term sheets and investor presentations use "PIK" for both.

How does the IRS tax PIK interest that has not been paid?

The US answer comes from the original issue discount (OID) rules in IRC sections 1272 and 1273. Section 1273 defines OID as the excess of a debt instrument's stated redemption price at maturity over its issue price. Section 1272 requires the holder to include a portion of that OID in gross income each year, calculated on a constant-yield basis, whether or not any cash is received.

Interest escapes OID treatment only if it is "qualified stated interest", which broadly means interest unconditionally payable in cash or other property at least annually. Interest that is rolled up, or that is satisfied by issuing more of the issuer's own debt, does not qualify. It is instead treated as part of the amount payable at maturity, so the whole coupon becomes OID. Where the company issues further PIK notes, the regulations generally treat those notes as part of the original instrument and not as a payment on it.

Four consequences follow for the manager's Form 1040:

• Cash-method status does not help. Individuals normally report interest when received, but OID is an explicit exception. The accrual is required regardless of the holder's accounting method.
• The income is ordinary interest income. It is reported with other interest on Schedule B and taxed at ordinary rates, currently up to 37%, and it is generally within the 3.8% net investment income tax for holders above the income threshold.
• No information return arrives. A UK issuer will not normally send a Form 1099-OID. The holder has to compute the accrual from the terms of the note, using the method set out in IRS Publication 1212.
• Basis increases each year. OID included in income is added to the holder's basis in the note. That is what prevents the same interest being taxed again on redemption, and it only works if the accruals were actually reported.

Is the instrument debt at all for US purposes?

The OID analysis assumes that the notes are debt for US tax purposes. Deeply subordinated shareholder notes with long maturities sometimes sit close to the line, and US law classifies an instrument on its substance, not on its UK legal label. If the strip also includes preference shares, those follow different rules altogether. A competent US preparer documents the classification conclusion in the file before any figures are computed, because every later answer depends on it.

When does HMRC tax the same interest?

For a UK resident individual, interest is charged to income tax under ITTOIA 2005 on the full amount arising in the tax year (section 370). HMRC's published view, set out in its Savings and Investment Manual at SAIM2440, is that interest arises when it is received or made available to the recipient. Interest that is merely accruing on a loan note is neither.

Rolled-up interest: taxed on payment

Where interest is capitalised, HMRC's guidance is that capitalisation is not payment. No income tax charge arises for the holder, and the company has no duty to deduct tax, until the interest is actually paid. In practice that means the redemption date, which is usually the exit. All of the rolled-up interest for the whole holding period then falls into a single UK tax year and is taxed at the rates in force for that year.

PIK notes issued as funding bonds: taxed on issue

Where the company issues further notes in satisfaction of interest, a specific rule in section 380 ITTOIA 2005 treats the issue of those "funding bonds" as a payment of interest equal to their market value at issue. The holder is taxed in the year each PIK note is issued, and the later redemption of that PIK note is not taxed as income again. On this mechanism the UK and US timetables are broadly aligned, although the amounts can differ because the UK measures market value and the US measures accrued yield.

UK withholding on payment

A UK company paying yearly interest to an individual must generally deduct income tax at source under section 874 ITA 2007. The rate is currently 20%. Three practical points arise:

• On a rolled-up note the deduction is made when the interest is finally paid, on the whole accumulated amount, so the manager receives the redemption proceeds net of tax on the interest element.
• On funding bonds the company retains PIK notes equal to the tax, so the manager is issued with fewer notes than the gross coupon, and should receive a statement showing the gross interest, the tax and the net.
• If the notes are listed on a recognised stock exchange they may qualify as quoted Eurobonds and be paid gross, in which case the whole liability is collected through self assessment.

The tax deducted is a credit against the manager's UK self assessment liability, not the final liability. An additional rate taxpayer owes the difference between the withholding and the 45% additional rate through the return.

The April 2027 rate change

The UK government has announced that the income tax rates on savings income will each rise by two percentage points from 6 April 2027, to 22%, 42% and 47%, and that the withholding rate on yearly interest will follow the savings basic rate. Because rolled-up interest is taxed in the year of payment, an exit after that date brings every year of accrued interest into the higher rate, including interest that accrued long before the change.

US versus UK: the same note on two timetables

Issue	US (IRS)	UK (HMRC)
When rolled-up interest is taxed	Each year as it accrues, as OID	When paid, normally at redemption or exit
When PIK notes issued as interest are taxed	Each year as it accrues, as OID	When each PIK note is issued, at its market value
Governing rules	IRC sections 1272 and 1273; section 988 for currency	ITTOIA 2005 sections 369, 370 and 380; ITA 2007 section 874
Top rate on the interest	37%, plus 3.8% net investment income tax where applicable	45% (47% from 6 April 2027)
Tax collected at source	None from a UK issuer	20% deducted on payment unless an exemption applies
Tax year	Calendar year	6 April to 5 April
Currency	Translated to dollars; separate exchange gain or loss	Sterling; no currency element on a sterling note
Annual asset reporting	Form 8938 if thresholds are met	None for the holder while nothing is paid

A worked illustration

Assume a manager subscribes £500,000 for loan notes carrying 10% interest, compounding annually and rolled up, redeemed in full after five years. The exchange rates are invented for illustration.

Year	Interest accrued (£)	Average rate ($ per £)	US income reported ($)	UK taxable interest (£)
1	50,000	1.25	62,500	Nil
2	55,000	1.27	69,850	Nil
3	60,500	1.30	78,650	Nil
4	66,550	1.33	88,512	Nil
5 (redemption)	73,205	1.35	98,827	305,255

Over five years the manager reports about $398,000 of interest income to the IRS in five instalments and £305,255 to HMRC in one. In years 1 to 4 there is US tax and no UK tax to credit. In year 5 the UK charges up to 45% on the full £305,255, roughly £137,000, of which about £61,000 is deducted at source, while the US return for that year shows only the final year's accrual. The example assumes interest periods that match the calendar year; in practice each accrual period is split across US tax years.

Why does the timing gap strand foreign tax credits?

The foreign tax credit is claimed on Form 1116 for foreign income tax paid or accrued in the year, and it is limited to the US tax on foreign-source income in the same category for that year. A rolled-up note breaks that matching in both directions.

In the accrual years the interest is foreign-source income with no UK tax attached. US tax is due unless the manager has unused credits in the same category from other UK income. Many UK resident Americans do, because UK rates on savings and dividend income exceed US rates, and a properly maintained Form 1116 carryover schedule can absorb some or all of the US tax on the accruals. Where earlier returns were prepared without tracking carryovers, that shelter has to be reconstructed before it can be used.

In the redemption year the position reverses. UK tax on five years of interest lands against one year of US income, producing a large excess credit. Unused credits can be carried back one year and forward ten. The one-year carryback reaches only the final year before exit, and a carryforward is useful only if the manager goes on to have lightly taxed foreign income in that category. Assigning the redemption-year UK tax to the correct category is itself technical, because the US rules have specific provisions for foreign tax on income recognised in a different US year and for highly taxed passive income.

For a UK resident US citizen the treaty does not remove the problem. The interest is UK-source income of a UK resident, so the UK taxes it in full and gives no credit for US tax, and the treaty's saving clause preserves the US right to tax its citizens. Relief runs through the US foreign tax credit, and that credit is where the timing gap bites. A US resident manager is in a different position: the treaty generally gives the US the sole right to tax the interest, and the planning point becomes a claim for relief from UK withholding before the interest is paid.

What currency gain or loss arises on a sterling note?

For a US filer whose functional currency is the dollar, a sterling loan note is a section 988 transaction. Three separate calculations run alongside the interest accrual:

• Translating the accrual. OID is computed in sterling and translated into dollars at the average exchange rate for the accrual period, or the part of it falling in the tax year. An election is available to use the spot rate on the last day of the period instead, and it must then be applied consistently.
• Exchange gain or loss on accrued interest. When the interest is finally received, the holder compares its dollar value at the spot rate on the payment date with the dollar amount previously accrued. In the illustration, year 1 interest of £50,000 was accrued at 1.25, giving $62,500. If the redemption-date rate is 1.36 it is worth $68,000, and the $5,500 difference is exchange gain.
• Exchange gain or loss on principal. The £500,000 principal cost $625,000 at 1.25. Repaid at 1.36 it is worth $680,000, a further $55,000 of exchange gain.

Exchange gain or loss under section 988 is generally ordinary, not capital, and it is recognised on redemption, on a sale of the note, or on a deemed disposal. It has no UK counterpart, because the manager has made no sterling gain. A manager can therefore owe US tax on redemption of a note that returned exactly what it promised, or realise an ordinary loss if sterling has fallen. The exchange rate on the subscription date has to be documented at the time; reconstructing it years later is possible but slower.

Does a PIK loan note have to be reported on Form 8938?

Usually, yes. A debt instrument issued by a non-US company and held directly, outside a financial account, is a specified foreign financial asset. It is reported on Form 8938 if the holder's total specified foreign financial assets exceed the filing threshold. For a taxpayer living abroad that is $200,000 on the last day of the year or $300,000 at any time for a single filer, and $400,000 or $600,000 for a joint return. For US residents the figures are $50,000 or $75,000, and $100,000 or $150,000 for joint filers.

The value reported should be the maximum value during the year, which for a PIK note grows annually as interest accrues, translated at the year-end Treasury rate. The form also asks for the income reported from the asset and where it appears on the return, which is how an unreported OID accrual and an unreported asset are frequently discovered together.

A loan note held directly is not a financial account and is not in itself reportable on an FBAR, but the bank account that receives the redemption proceeds is. Our FBAR penalty calculator illustrates the exposure where account reporting has also been missed. Failing to file Form 8938 carries a $10,000 penalty, and the assessment period for the return can remain open for as long as the form is outstanding.

What happens on a refinancing or partial redemption?

Refinancings are where the two systems diverge most sharply, and where the manager usually has the least notice. The points we check are:

• Cash paid part-way through. For US purposes a payment on an OID note is generally treated first as a payment of OID already accrued and taxed, so it is not new interest income, although it does trigger exchange gain or loss on the amount received. For UK purposes it is a payment of interest, taxable in that tax year with tax deducted at source.
• Amended terms. A change in coupon, maturity or ranking can be a significant modification under US rules, treated as an exchange of the old note for a new one. That can crystallise exchange gain or loss and reset the OID schedule, with no UK tax event at all.
• Replacement notes. If the old notes are redeemed and reinvested in a new instrument, the UK treats the accrued interest as paid. Whether the US sees a taxable exchange depends on the terms.
• Capitalisation into shares. A conversion of notes and accrued interest into shares has interest, currency and basis consequences on the US side that need to be worked through before the share basis is recorded.

What happens on exit?

On a sale of the group the notes are normally redeemed at par plus accrued interest. For the US return, only the current year's accrual is new interest income. The balance of the proceeds is measured against a basis that already includes prior accruals, and what remains is exchange gain or loss. For the UK return, on a rolled-up note, the whole of the interest is income of that tax year, the tax deducted at source is credited, and the balance is due through self assessment. The higher income will usually increase the following year's payments on account as well.

If the notes are sold to the buyer instead of being redeemed, UK rules on transfers of securities with accrued interest can still treat the accrued element as income of the seller, so a sale does not convert interest into capital. On the principal, whether any UK capital gains tax arises depends on whether the note is a qualifying corporate bond, which is explained in our earn-outs guide.

What gets missed in practice?

• No OID is reported in the holding years, because no cash or tax form was received, and the full interest is then reported as US income in the exit year.
• The note is omitted from Form 8938, often for the same reason.
• Basis is never tracked, so the redemption is reported with the wrong gain or with none.
• Exchange gain or loss on principal and accrued interest is ignored, or treated as capital.
• UK tax deducted at source is claimed as a US credit in the wrong year or the wrong category, and excess credits are not carried back.
• The UK return treats funding bonds as untaxed until exit, when they were taxable on issue, or the reverse.
• A refinancing is treated as a non-event on both returns.
• The US and UK returns are prepared by different people who never compare figures.

How are prior US years corrected?

Reporting all of the interest in the exit year is not a correction. The earlier years remain understated, and where Form 8938 was also missing they generally remain open to assessment. The route back depends on the facts.

Where prior returns were filed and the only error is the timing of the interest, the usual approach is to compute the OID schedule from the issue date and correct the affected years, with foreign tax credit carryovers recomputed alongside. Whether that is done through amended returns or through a request to change the method of reporting the income is a technical judgement made on the particular history.

Where foreign asset reporting was also missed and the failure was non-wilful, the IRS streamlined filing compliance procedures are usually the appropriate route. They require the most recent three years of returns and six years of FBARs, with a certification of non-wilful conduct. Taxpayers who meet the non-residency test under the Streamlined Foreign Offshore Procedures pay no miscellaneous offshore penalty; those using the domestic version pay 5% of the highest year-end balance of the relevant assets. Our IRS streamlined filing team prepares these submissions, and the earlier it is done before an exit the more of the foreign tax credit position can be preserved.

On the UK side, an error in the year in which funding bonds or interest payments were taxable is corrected by amending the self assessment return within the normal window, or by a disclosure to HMRC for earlier years.

What records should a manager keep from day one?

• The loan note instrument, the investment agreement and any later amendments.
• The subscription date, the sterling amount paid and the exchange rate that day.
• An annual statement from the company of interest accrued, capitalised or satisfied by PIK notes.
• Any statements of tax deducted from interest, including on funding bonds.
• A running OID and basis schedule in sterling and dollars.
• Form 1116 carryover schedules by category for every year.
• Completion statements for any refinancing, partial redemption or exit.

Speak to a cross-border preparer before the exit, not after

PIK loan notes are simple instruments with complicated reporting. The US taxes the interest as it accrues, the UK taxes it when it is paid, sterling movements create a third layer that only the US sees, and the credit system was not built to reconcile them. Handled from the first year, the returns are routine. Handled for the first time in the exit year, they involve reopening several years at once. Jungle Tax prepares both sets of returns together, including US returns for Americans in the UK and UK self assessment, so that one set of figures supports both filings. If you hold loan notes in a UK buyout and are not certain how the interest has been reported, contact our cross-border team for a confidential consultation.