Are options and futures taxed differently from shares?
Often, yes, and that is the point people miss. With shares the question is mostly about the activity — investing or trading. With derivatives the instrument matters as well, because some contract types carry their own treatment regardless of how you use them. A regulated futures contract can be taxed on its year-end value in one system while the shares you hold beside it are taxed only when sold. Options add their own events: writing a contract, letting it expire, closing it early and being assigned each produce a different tax outcome from the same underlying share.
Why does my broker mark my futures to market at year end?
Because the system the broker reports into taxes the change in value of certain contracts each year whether or not you closed anything. The position is treated as if it were sold at the year-end price and reopened at that price, so the gain is recognised then and the cost base resets. That is a coherent way to tax a contract that has no fixed life. It becomes a problem only when the other country taxing you waits for the position to actually close, because the same economic profit then lands in two different years.
Can I claim a foreign tax credit when two countries tax different years?
This is where derivatives traders get caught. Relief for tax paid abroad generally requires the same income to be taxed by both countries, and most systems also require it to be the same period. If one country taxed your year-end value and the other taxes the closing trade in the following year, there is no year in which both charges sit together, so there is nothing for a credit to match against. The credit rules have no mechanism for shifting a charge between years. The mismatch has to be managed by when positions are opened and closed, not corrected on the return.
Can I use carried-forward trading losses after moving countries?
Generally not. A loss carried forward is an attribute of the system that allowed it, recognised under that country’s rules and available against future profits it taxes. The country you move to computes its own income from the point you become taxable there and has no reason to honour an allowance granted by another administration. So a trader arriving with a bank of unused losses usually starts from nothing, while the losses remain usable only if the first country still taxes something. Where positions are closed relative to the move therefore changes which system the loss can ever be used in.
How are expired and assigned options treated for tax?
They resolve differently. An option that expires unexercised closes out on its own terms: the buyer has a loss of what was paid, and the writer has the premium with no share ever changing hands. An option that is exercised does not stand alone, because the premium folds into the share transaction it produced — reducing the proceeds for a writer of a call, or adjusting the cost for a buyer. Closing the contract early is a third event, measured against what the position cost to open. The same contract can therefore end in any of three treatments.
Are covered-call premiums income or capital?
It turns on whether writing the options is part of a business or incidental to holding the shares. Selling a call occasionally against a long-held holding looks like a feature of the investment, and many systems treat the premium accordingly. Running a continuous programme — writing systematically, rolling contracts, managing the positions as the activity itself — has the character of a business, and the premiums are ordinary income with expenses deductible against them. The distinction is drawn from the pattern over time, so it is worth settling before several years have been filed on an assumption.
What is a permanent establishment, and how easily do we create one?
A taxable presence in another country under the treaty — typically a fixed place of business such as an office, branch, factory or workshop, or a dependent agent habitually concluding contracts on your behalf. Some treaties add a services test measured in days. Purely preparatory or auxiliary activity is excluded, but that carve-out is narrower than it sounds: one senior employee working from home in the other country, with authority, has been enough. See business profits and permanent establishment.
How do you avoid double taxation?
You claim relief once, in the right country, in the right order. Usually the source country taxes first, the residence country then gives a credit for that tax against its own charge on the same income, and a treaty caps the source-country rate. Getting the order wrong is what produces a double charge you then have to unwind. The mechanism differs by income type, which is why we map the whole position before filing either return. See how to avoid double taxation.