US UK Tax Returns Preparation for Covered Call Writers

For a UK-resident American writing covered calls, US UK tax returns preparation means reporting one premium twice. The US holds it open until the call lapses, is closed or is exercised; the UK taxes it as a separate disposal on the day of grant, then folds it into the share sale if exercised.

Neither country's rule is difficult on its own. The difficulty is that every published explanation covers one side only. US guides to covered call tax assume a US resident with a consolidated Form 1099-B and no foreign tax. UK guides to options and capital gains tax assume nobody is also filing Form 1040. A US citizen or green card holder living in Britain sits in both systems, with a tax year ending 31 December in one and 5 April in the other, two currencies, two sets of share-matching rules and a foreign tax credit that has to connect them. This guide sets out how the two returns should be prepared so that they agree with each other. It is a compliance guide, not a view on whether or how to write options.

How does the US tax covered call premium?

For US federal purposes, the premium you receive for writing a call is not income on the day it arrives. It is held in suspense as an open transaction until one of three things happens. The rules are summarised in IRS Publication 550, Investment Income and Expenses.

• The call lapses. The whole premium becomes a short-term capital gain on the expiry date, however long the option was outstanding.
• You close the call with a closing purchase. The difference between the premium received and the amount paid to close is a short-term capital gain or loss on the closing date. One exception, covered below, can turn a loss into a long-term loss.
• The call is exercised and you deliver the shares. The premium is added to the strike price to give your amount realised on the share sale. The option itself produces no separate gain. Whether the combined result is long-term or short-term depends on your holding period in the shares delivered.

The consequence for return preparation is simple to state. A call written in November and still open on 31 December produces nothing on that year's US return. The premium appears on Form 8949 and Schedule D only in the year the position ends.

Why the rate matters

Short-term capital gains are taxed at ordinary federal rates, which currently run up to 37%. Long-term gains are taxed at 0%, 15% or 20%. For higher earners the 3.8% Net Investment Income Tax generally sits on top of either. A programme of calls that routinely lapse therefore generates income taxed at the highest US rates, while an assignment of shares held for more than a year generates long-term gain. That difference in US rate, set against a single UK capital gains rate, drives much of the foreign tax credit analysis later in this guide.

What is a qualified covered call?

The US straddle rules in section 1092 treat shares and a written call over those shares as offsetting positions. Left unmodified, those rules would defer losses, disturb holding periods and require carrying costs to be capitalised for every covered call writer. The statute therefore carves out the qualified covered call. In broad terms, a written call is qualified if all of the following are true:

• it is traded on a US national securities exchange registered with the Securities and Exchange Commission, or another market the Treasury has approved for this purpose;
• it is granted more than 30 days before it expires;
• it is not deep in the money when written;
• it is not granted by an options dealer in the course of that business; and
• gain or loss on it is capital, not ordinary.

Treasury regulations add that a call with a term of more than 33 months cannot be qualified, and they adjust the test for options running longer than one year.

How deep is "deep in the money"?

A call is deep in the money if its strike price is below the lowest qualified benchmark. The benchmark is generally the highest available strike price that is less than the applicable stock price, which is normally the previous day's closing price (or the opening price on the day of writing, if that is more than 110% of the previous close). Three refinements matter in practice:

• where the option has more than 90 days to run and the strike price is above $50, the benchmark is the second highest available strike below the applicable stock price;
• where the applicable stock price is $25 or less, the benchmark cannot be lower than 85% of that price; and
• where the applicable stock price is $150 or less, the benchmark cannot be more than $10 below that price.

In plain terms, a call written at or above the market is never deep in the money, and a call written one strike below the market usually is not. Anything lower needs to be tested against the option chain as it stood on the day of writing, which is a records exercise as much as a tax one.

The cross-border point most guides miss

The exchange requirement is drafted by reference to US-registered exchanges. A call written over UK-listed shares and traded only on a non-US derivatives market will not generally satisfy it, however conservative the strike price. For a UK-resident American who writes calls over London-listed holdings, the working assumption should be that those positions are not qualified covered calls and that the full straddle rules apply. US-domestic articles never raise this because their readers do not hold foreign-listed options. The classification should be confirmed for each market on the facts.

How do covered calls affect the holding period of the shares?

This is the area where US returns for option writers most often go wrong, because the consequences fall on the shares and not on the option.

Qualified, at or out of the money

The straddle rules do not apply. Your holding period in the shares continues to run while the call is outstanding. A loss on closing the call is a short-term loss.

Qualified, but in the money

The position is still outside the main straddle rules, but two special rules apply. First, your holding period in the shares is suspended for the period the call is outstanding, so shares that were short of the one-year mark do not move towards it. Secondly, if you close the call at a loss and a sale of the shares at that time would have produced a long-term gain, the loss on the call is treated as a long-term loss.

Not qualified

The shares and the call form a straddle. The main effects are:

• Holding period. If the shares had not yet been held for the long-term holding period when the call was written, the holding period already built up is eliminated and does not begin again until the straddle ends. Shares already held long-term keep that status.
• Loss character. Where the shares were already long-term, a loss on the call is treated as a long-term loss.
• Loss deferral. A loss on one leg is deferred to the extent of unrecognised gain in the other leg at the end of the year.
• Carrying costs. Interest and other carrying charges allocable to the position are capitalised into basis and not deducted.
• Reporting. Straddle losses and unrecognised gains are reported on Part II and Part III of Form 6781 as well as on Form 8949.

The year-end exception for qualified calls

Even a qualified covered call is pulled back into the straddle rules in one situation. If the call is closed, or the shares are sold, at a loss in one tax year, the gain on the other leg is recognised in a later tax year, and the remaining leg was not held for at least 30 days after the closing date, the loss deferral rules apply. This matters for positions that are rolled across 31 December.

Do covered calls stop dividends being qualified dividends?

They can. A dividend is a qualified dividend, taxed at long-term capital gains rates, only if you hold the shares for more than 60 days during the 121-day period that begins 60 days before the ex-dividend date. Days on which your risk of loss is diminished do not count. Being the grantor of a call over the shares is treated as diminishing risk, with an exception for a qualified covered call that is not in the money.

• Qualified call, at or out of the money: the days count normally.
• Qualified call, in the money: days while the call is outstanding do not count.
• Non-qualified call: days while the call is outstanding do not count.

For shares held for years with only occasional call writing, the 61 days are usually satisfied anyway. The risk sits with recently acquired shares, with calls kept continuously open across ex-dividend dates, and with calls over non-US listed shares that cannot be qualified. Dividends from UK companies can be qualified dividends for US purposes because the UK has a comprehensive income tax treaty with the US, so the same holding period test applies to a UK portfolio. Where the test is failed, the dividend is taxed at ordinary rates on the US return and should not be entered as qualified simply because a brokerage statement, or the absence of one, suggests it.

How does the UK tax a written call option?

The UK starts from the opposite position. Under section 144 of the Taxation of Chargeable Gains Act 1992, the grant of an option is the disposal of an asset, namely the option itself. HMRC's summary for traded options, in its Capital Gains Manual at CG55536, describes the result for the writer.

• On grant. The premium, less incidental costs, is a chargeable gain arising on the date the call is written. There is no base cost to set against it.
• On lapse. Nothing further happens to the writer. The gain on grant stands, in the tax year of grant.
• On a closing purchase. Buying back a traded option of the same description is not a separate disposal. The cost of the closing purchase is treated as an incidental cost of the original grant, so it reduces the gain on grant, or turns it into a loss, in the tax year of grant.
• On exercise. The grant and the sale of the shares are treated as a single transaction. The premium is added to the consideration for the shares, the separate gain on grant falls away, and any tax already charged on it is set off or repaid.

Several features of the UK computation have no US equivalent and need to be built into the working papers:

• No holding period. There is no long-term or short-term distinction. For individuals the main capital gains tax rates are 18% and 24%, depending on the income band, after an annual exempt amount of £3,000.
• Share identification. Shares delivered on exercise are matched under the UK rules: same-day acquisitions, then acquisitions in the following 30 days, then the section 104 pool at average cost. The US uses specific identification or first in, first out. The gain on the same assignment can differ substantially.
• Sterling. The premium, any closing cost, the strike proceeds and the share cost are each translated into sterling at the rate on their own date.
• No straddle or qualified dividend concepts. Writing a call has no effect on how dividends are taxed in the UK. Dividends are income, taxed at the dividend rates, which rise to 39.35% at the additional rate.
• Trading status. HMRC's guidance accepts that individuals are unlikely to be carrying on a trade of dealing in options. Capital gains treatment is the normal result, though a highly organised operation should be assessed on its facts.

Gains are reported on the capital gains pages of the Self Assessment return, and the tax for a year is due by 31 January following its end. A return is generally required where total gains exceed the annual exempt amount or disposal proceeds exceed £50,000.

US versus UK treatment of a covered call

Why does the same premium land in different tax years?

Two timing rules are at work at once. The US waits for the option to end; the UK taxes at grant. And the US year ends on 31 December while the UK year ends on 5 April. Consider an illustration. All figures are illustrative, and currency movements and dealing costs are ignored.

A UK-resident US citizen has held 1,000 US-listed shares since 2019 with a US basis of $80 a share. On 10 February 2027, with the shares at $148, she writes ten call contracts with a $155 strike expiring on 21 May 2027 and receives $4,000. The call is more than 30 days from expiry and out of the money, so it is a qualified covered call.

Outcome A: the call lapses on 21 May 2027

• US: $4,000 short-term capital gain on the 2027 return.
• UK: a gain equal to the sterling value of $4,000 on 10 February 2027, in the 2026/27 tax year. The tax is due by 31 January 2028.

Outcome B: she buys the call back on 20 April 2027 for $1,500

• US: $2,500 short-term capital gain on the 2027 return.
• UK: the closing cost, translated at the April rate, is deducted from the gain on grant. The net gain still belongs to 2026/27, even though the buy-back took place in 2027/28.

Outcome C: the call is exercised on 21 May 2027

• US: amount realised of $159,000 (strike of $155,000 plus premium of $4,000) against basis of $80,000, giving a $79,000 long-term gain on the 2027 return.
• UK: a single disposal of the shares in 2027/28, with the premium added to the proceeds and the sterling section 104 pool cost deducted. The standalone 2026/27 gain on grant disappears. The tax is due by 31 January 2029.

Three practical lessons follow. First, a call written between 1 January and 5 April and still open at 5 April has a UK outcome that depends on events in the next UK tax year, although the Self Assessment return for the year of grant is rarely due before those events are known. Secondly, exercise moves the UK charge into a later UK year while leaving the US year unchanged. Thirdly, a call written in the autumn and expiring in January is a UK gain of the tax year ending the following 5 April but a US gain of the next calendar year. The preparer must track each contract by grant date for the UK and by termination date for the US.

Foreign tax credit consequences

The UK has the primary right to tax the investment gains of its residents, and the US relieves double taxation by a foreign tax credit on Form 1116. For covered call writers, four issues decide whether that credit works.

When the UK tax counts: paid or accrued

By default an individual claims the credit in the US year the foreign tax is paid. An election is available to claim on the accrual basis instead; once made, it applies to all later years. On the accrual basis, UK tax for a UK tax year is generally treated as accruing when that year ends on 5 April. In Outcome A the UK tax for 2026/27 accrues on 5 April 2027 and matches the US gain in 2027. In Outcome C the UK tax accrues on 5 April 2028, in the US 2028 year, and must be carried back. Unused credits can generally be carried back one year and forward ten, so the gap is usually bridgeable, but only if the carryback is actually claimed on an amended return.

Source of the gain

Gains on shares and options are generally sourced by the residence of the seller. For a US citizen living abroad, a gain is treated as foreign source under the domestic rules only if foreign tax of at least 10% is actually paid on it. Where the annual exempt amount or UK losses reduce the UK tax below that level, the treaty's re-sourcing provisions may need to be considered. This is assessed year by year.

Rate mismatch within the passive category

Option premium on a lapsed call is taxed in the US at up to 37% and in the UK at no more than 24%. Taken alone, that leaves residual US tax. UK tax on dividends, at up to 39.35%, typically exceeds the US rate on the same dividends. Both items normally fall in the passive category, where credits are pooled, so excess UK tax on dividends can shelter US tax on premium. The credit limitation is computed on the category, not the trade. Whether a given year produces residual US tax is an arithmetic question that should be answered with both draft returns side by side.

The Net Investment Income Tax

The IRS position is that foreign tax credits do not reduce the 3.8% Net Investment Income Tax. Treaty-based claims have been litigated with mixed results. For a sizeable covered call programme, that 3.8% can be a real US cost even where UK tax is higher overall.

Different instruments raise different timing problems. Index options and futures are marked to market at 31 December, which we address in our guide to section 1256 options and futures for UK-resident traders. Single-stock covered calls are not marked to market, so the mismatch described here is the one that applies.

What records does each return need?

Accurate preparation depends on contract-level data that neither country's standard reporting provides in full. A US brokerage account will usually produce Form 1099-B, but that form does not tell you whether a call was qualified, does not apply the straddle holding-period rules, and gives nothing in sterling. A UK brokerage account produces no US reporting at all. For each call written, the file should contain:

• the grant date, expiry date, strike price, premium and dealing costs;
• the previous day's closing price of the shares and the available strike prices, to test qualified status;
• how and when the position ended, with any closing cost;
• the acquisition dates and costs of the underlying shares, on both US lot and UK pooled bases;
• ex-dividend dates falling while any call was open; and
• exchange rates for each date.

A brokerage account held outside the US is also a foreign financial account. It is reportable on the FBAR where the aggregate of all foreign accounts exceeds $10,000 at any time in the year, and on Form 8938 above higher thresholds, which for a single filer living abroad are $200,000 at year end or $300,000 at any time.

Common errors on covered call returns

• Reporting premium on the US return in the year it was received instead of the year the call ended.
• Reporting premium on the UK return in the year the call lapsed instead of the year it was written.
• Treating an assigned call as two disposals in the UK, taxing the premium twice.
• Entering dividends as qualified when in-the-money or non-qualified calls were open across the ex-dividend date.
• Treating shares as long-term on assignment when the holding period had been suspended or eliminated.
• Omitting Form 6781 for non-qualified calls, including calls over non-US listed shares.
• Using US lot basis on the UK return instead of the section 104 pool, or dollar figures instead of sterling.
• Claiming UK tax as a credit in the wrong US year, or not claiming the one-year carryback.
• Leaving a UK brokerage account off the FBAR.

What if earlier years were filed incorrectly or not at all?

Many UK-resident Americans with option income have filed UK returns for years and either never filed US returns or filed them from UK figures. Where the failure was non-wilful, the IRS streamlined filing procedures generally require the three most recent years of returns and six years of FBARs, together with a certification explaining the facts. Those who meet the non-residency test under the Streamlined Foreign Offshore Procedures pay no miscellaneous offshore penalty. The preparation work follows a set order:

1. List every account that held shares or options, and the years in scope.
2. Rebuild the contract-level record for each call written.
3. Test each call for qualified status and apply the holding period and straddle rules to the shares.
4. Re-examine dividend qualification for each ex-dividend date.
5. Recompute the UK gains by grant date, in sterling, and compare them with the UK returns filed. If those were wrong, they need correcting too, because the correct UK tax drives the US credit.
6. Allocate UK tax to US years, apply carrybacks and carryforwards, and complete Forms 8949, 6781, 1116 and 8938 with the FBARs.

How Jungle Tax prepares returns for covered call writers

Jungle Tax prepares US and UK returns for internationally mobile investors as one coordinated engagement. For clients who write covered calls, that means a single contract-level data set, two computations, and a reconciliation showing how each premium was treated in each country and where the UK tax was credited. Our US-UK tax accountants handle current-year filings and catch-up work, and clients with larger portfolios often combine this with our high net worth compliance service and wider US tax services. We prepare and file returns. We do not give investment advice or recommend option strategies.

If you write covered calls from the UK and are not certain that both returns captured the premium in the right year, tested your calls for qualified status, or claimed the foreign tax credit correctly, the position can almost always be put right. Please contact our cross-border team for a confidential consultation. We will review your statements and set out exactly what needs to be prepared, for which years, in both countries.