Crypto Margin, Futures and Leverage Tax UK Explained
If you trade with leverage, perpetual futures or contracts for difference, working out your crypto futures tax UK position is rarely as simple as it looks. Spot crypto is now reasonably well understood: you buy a coin, you sell it, you have a disposal for Capital Gains Tax. Derivatives feel different because you may never actually own the underlying coin, and that difference leads a lot of traders to one of two wrong conclusions: either that nothing is taxable because no coin changed hands, or that it is all gambling and therefore tax free.
Neither shortcut is safe. For most individual UK investors, closing a leveraged or derivative crypto position is a disposal that falls within Capital Gains Tax, broadly the same as spot. For a smaller group whose activity is frequent, organised and substantial, the profits can instead be trading income subject to income tax. This guide sets out the main view, the genuinely uncertain edges, and why your records matter more here than almost anywhere else in crypto tax.
Key Takeaways
- For most individuals, closing a leveraged or derivative crypto position is a disposal for Capital Gains Tax, not an automatic income event.
- Each closed position is a separate disposal, and your realised profit or loss, after funding fees, is what gets taxed.
- Where trading is frequent, organised and substantial it can amount to a trade under the badges of trade, making profits income and losses income-relievable.
- The “it is just gambling so it is tax free” argument is generally not accepted by HMRC for this activity.
- Derivatives treatment is genuinely uncertain at the edges, so detailed records and professional advice are essential.
Spot crypto versus crypto derivatives
With spot crypto you take ownership of the actual token. With derivatives and leveraged products you are usually trading exposure to a price, not the coin itself. The common forms UK traders use are:
- Margin trading: you borrow funds from an exchange to open a larger position than your own capital would allow, then repay the borrowing when you close.
- Perpetual futures (“perps”): a futures-style contract with no expiry date, kept in line with the spot price by periodic funding payments between long and short holders.
- Contracts for difference (CFDs): a contract to exchange the difference in an asset’s price between opening and closing the position, never owning the asset.
The economic result is similar across all three: you make or lose money based on price movement, amplified by leverage. The tax question is whether that profit is a capital gain or trading income, and the answer turns on how you operate, not on which product you pick.
The main view: Capital Gains Tax on each closed position
For a typical individual investor, HMRC’s general approach to cryptoassets applies: a disposal triggers Capital Gains Tax. The HMRC Cryptoassets Manual treats only exceptional cases as financial trades, noting that “only in exceptional circumstances would HMRC expect individuals to buy and sell exchange tokens with such frequency, level of organisation and sophistication that the activity amounts to a financial trade in itself.”
On that basis, when you close a leveraged or derivative position, that closing is the disposal. Your taxable amount is the realised profit or loss on the position, after the costs of holding it. Key points:
- Each closed position is treated as a separate disposal with its own gain or loss.
- Realised losses on closed positions can be set against gains in the same year, or carried forward if claimed in time.
- The annual exempt amount for 2025/26 is £3,000 per person, with no carry-forward of the unused amount.
- From 30 October 2024, CGT on crypto is charged at 18% within the basic-rate band and 24% above it.
Note that derivatives sit outside the normal Section 104 pooling rules that apply to spot tokens, because you are typically not acquiring and holding units of the same token. Pooling, and the same-day then 30-day matching order, still matters for any actual coins you hold, but the profit or loss on a CFD or perpetual position is generally a standalone figure per closed trade.
Funding fees, liquidations and what counts in the calculation
Leveraged products carry costs that spot trading does not, and getting these into the calculation correctly is where many self-prepared figures go wrong.
- Funding fees: on perpetual futures, funding is paid or received periodically. These amounts are part of the economics of the position and should be reflected in the realised result you bring to tax.
- Trading fees and borrowing costs: exchange fees and margin interest are allowable costs of the disposal under normal CGT principles.
- Liquidations: if the exchange force-closes your position because your margin is exhausted, that closure is still a disposal. You usually crystallise a loss, but it is a real, recordable disposal, not a non-event.
The treatment of recurring funding payments is one of the areas where the law was not written with perps in mind, so the precise characterisation can be uncertain. The practical answer is to keep every funding entry, fee and liquidation record, and take advice on presentation rather than guessing.
The capital versus income question, and why it matters
This is the heart of derivatives tax. The same activity can land in two very different regimes depending on its scale and character. Where activity is frequent, organised and substantial, it can amount to a trade. HMRC looks at the long-established badges of trade, the same factors used for share dealers, including profit-seeking motive, frequency of transactions, organisation, and the way positions are financed and managed.
Why it matters in pounds and outcomes:
| Feature | Capital treatment (CGT) | Income treatment (trade) |
|---|---|---|
| Tax on profits | CGT at 18% or 24% | Income tax at 20% / 40% / 45% |
| Annual exemption | £3,000 exempt amount available | No CGT exemption; personal allowance may apply |
| National Insurance | Not charged | Class 2 / Class 4 may apply |
| Losses | Set against capital gains only | Wider income loss relief may apply |
For a heavy loss year, income (trade) treatment can be more favourable because the losses are more flexible. For a strong profit year, capital treatment with the £3,000 exemption and lower headline rates often costs less. You do not get to simply choose: the facts decide. That is exactly why HMRC scrutinises this area, and why a consistent, evidenced position matters.
The “it is just gambling” argument
Many leveraged traders assume that because the activity feels like a bet, it is tax free like betting winnings. For this kind of crypto activity, HMRC generally does not accept that. The HMRC Cryptoassets Manual states plainly that “HMRC does not consider the buying and selling of cryptoassets to be the same as gambling.” Whether any specific transaction could be characterised as betting is, in HMRC’s words, a question of fact, and the bar is high. In practice you should not rely on the gambling argument to keep leveraged crypto profits out of tax.
A worked example
Priya is an employed software engineer who also trades crypto perpetual futures in her spare time. In 2025/26 she closes a series of positions. Her overall realised result, after all funding fees and trading fees, is a net profit of £11,000. Her trading is regular but modest, sits alongside a full-time job, and on the facts is treated as investment rather than a trade, so Capital Gains Tax applies.
- Net realised gain for the year: £11,000
- Less annual exempt amount: £3,000
- Taxable gain: £8,000
Priya’s salary uses up most of her basic-rate band, leaving £2,000 of basic-rate room. So £2,000 of the gain is taxed at 18% (£360) and the remaining £6,000 at 24% (£1,440). Her total CGT is £1,800. If instead her activity had been frequent, organised and substantial enough to be a trade, the £11,000 would be income, with no £3,000 exemption and potentially National Insurance on top. Same profit, materially different bill, decided entirely by the facts of how she traded.
How a specialist handles it
When a leveraged trader comes to us, we work in one order: reconcile first, characterise second. We pull every closed position, funding payment, fee and liquidation from each exchange into one reconciled view, separate genuine spot pooling from standalone derivative results, and then assess the capital-versus-income question honestly against the badges of trade. The aim is a defensible, consistent position with the evidence sitting behind every figure, so that if HMRC ever asks, the answer is already documented.
Frequently Asked Questions
Is crypto futures trading taxed in the UK?
Yes. For most individuals, closing a futures, perpetual or CFD position is a disposal subject to Capital Gains Tax. For some traders whose activity amounts to a trade, profits are income tax instead. It is not tax free.
Do I pay tax if I never owned the actual coin?
Yes. With CFDs and perpetuals you trade price exposure rather than the coin, but the realised profit when you close the position is still taxable. Not owning the underlying token does not remove the charge.
Are funding fees and trading fees deductible?
Exchange fees and borrowing costs are generally allowable costs of the disposal under normal CGT principles, and funding payments form part of the position’s realised result. Keep every record, as the precise treatment of recurring funding can be uncertain.
Is a liquidation a taxable event?
Yes. A forced liquidation closes your position, which is a disposal. It usually crystallises a loss that can be set against gains, but it is a real, recordable event, not something to ignore.
Can I treat leveraged crypto as gambling to avoid tax?
Generally no. HMRC does not consider buying and selling cryptoassets to be the same as gambling, and treats whether something is betting as a question of fact with a high bar. Do not rely on this argument for leveraged crypto profits.
How do I know if I am a trader or an investor?
It depends on the badges of trade: frequency, organisation, scale, profit motive and how positions are financed and managed. There is no single threshold, so a measured, evidenced assessment, ideally with professional input, is the safe route. US-connected clients should also note their IRS digital asset reporting obligations.
Get your leveraged crypto position right before HMRC asks
Leveraged and derivative crypto tax is one of the most uncertain corners of crypto tax, and the difference between capital and income treatment can be thousands of pounds. The safe move is to reconcile your full history and settle a defensible position now, not after a letter arrives. If you already owe tax on past years, HMRC’s route to tell HMRC about unpaid tax on cryptoassets is the one to use, and we can run it for you. Book a free, confidential review at certifiedcryptoaccountant.com, and see our crypto tax services for how we handle UK and US clients.
Sources: HMRC Cryptoassets Manual, including the financial trading and gambling guidance (GOV.UK); HMRC Business Income Manual BIM20205, badges of trade (GOV.UK); Capital Gains Tax overview (GOV.UK).