Do I need to declare spread betting profits to HMRC?

No. Spread bet profits are not reported on a self assessment return, because for most individuals they are chargeable to neither income tax nor capital gains tax.

Is spread betting still tax free if it is my full-time income?

Generally yes. HMRC's guidance is explicit that earning a living from gambling does not by itself constitute a trade. But if it is your sole source of substantial income, take a professional opinion rather than relying on the general position — if the activity were ever found to fall within the trading definition, the change in treatment would apply retrospectively.

Are CFDs tax free too?

No. CFD gains are chargeable to capital gains tax at 18% or 24% above the £3,000 annual exempt amount for 2026/27. CFDs do carry loss relief, which spread bets do not.

Can I offset spread betting losses against my other gains?

No. Because a spread bet produces no chargeable gain, it produces no allowable loss either. This is the direct trade-off for the exemption.

Does spread betting being tax free apply outside the UK?

No. The treatment follows UK tax law and applies to UK residents. Most other jurisdictions tax derivative gains.

Did the 2025 gambling tax rises affect spread betting?

No. Spread bets were explicitly excluded from the new 25% remote betting rate taking effect in April 2027. Financial spread bets remain at 3% duty, paid by the broker rather than by the customer.

Does automating a strategy change my tax position?

Not in itself. The treatment attaches to the product you trade, not to how you decide when to trade it. HMRC's published position is that having a system for placing bets does not by itself make the activity a trade.

Last reviewed: September 2026

Spread betting tax in the UK: what HMRC actually says

Spread betting profits are not subject to capital gains tax, income tax or stamp duty for most UK residents. That is a genuine advantage over almost every other way of taking a leveraged position on a market. It is also more conditional than most trading sites admit, and the conditions are worth understanding before you build anything around them.

Why spread betting is treated differently

The exemption is not a loophole or a concession. It follows from how HMRC classifies the activity. When you place a spread bet you do not buy or sell the underlying asset — you stake an amount per point on a price moving in a direction. No asset changes hands, so there is nothing to dispose of.

HMRC sets this out across several of its published manuals. The capital gains manual is the most direct: no assets are acquired or disposed of in spread betting, so no chargeable gains or allowable losses arise from it. The business income manual reaches the same conclusion from the income tax side, treating spread bet profits as betting winnings rather than the proceeds of a trade.

The underlying principle is nearly a century old. In Graham v Green [1925] 9 TC 309, a man who earned his entire living from gambling was held not to be carrying on a taxable trade. That case still anchors HMRC's position today.

What this means in practice

For most UK retail traders using a personal account:

No capital gains tax on spread bet profits, regardless of how large they are.
No income tax, because the profits are not treated as income.
No stamp duty, because you never own the underlying asset.
No self assessment reporting of spread bet profits.

On a £5,000 winning position, a spread bettor keeps £5,000.

The trade-offs nobody advertises

The exemption cuts both ways, and the downsides are structural rather than incidental.

Losses are not relievable. Because a spread bet produces no allowable loss, you cannot set a losing position against other capital gains. A CFD trader can. Given that the FCA's own mandated risk warnings show that somewhere between roughly half and three quarters of retail clients lose money at UK spread betting brokers, this is not a hypothetical disadvantage — for a majority of traders in any given year, the CFD treatment is arithmetically better.

It is UK residents only. The treatment follows UK tax law and does not travel. If you are not UK resident, none of this applies to you.

It is not unconditional. HMRC's manuals leave room for spread betting to be taxed where the betting forms part of a trade the person already carries on. In practice reclassification is rare, and HMRC's own guidance is explicit that having a system for placing bets, or being successful enough to earn a living from gambling, does not by itself make the activity a trade. But "rare" is not "impossible", and if spread betting is your sole source of substantial income it is worth a professional opinion rather than an assumption.

It can change. This is current law, not a guarantee about future law.

What the 2025 Budget changed, and what it did not

The Autumn Budget 2025 delivered the largest restructuring of UK gambling duty in years. Remote gaming duty rose from 21% to 40% from 1 April 2026, bingo duty was abolished on the same date, and a new 25% remote betting rate is introduced within general betting duty from 1 April 2027, up from 15%. Together the measures are forecast to raise over £1bn a year.

Spread bets were explicitly excluded from the new remote betting rate, alongside remote bets on UK horse racing, pool bets, and bets placed at self-service terminals. Financial spread bets continue to be taxed at 3% — and that duty is paid by the broker on its gross profits, not by you on your winnings.

The number is not the point. The point is that the government ran a full consultation on gambling taxation, restructured the regime, raised substantial revenue from it, and left the treatment of spread betting untouched. That is a more meaningful signal about the near-term stability of the position than any general reassurance could be.

It still is not a guarantee. Tax law changes, and a future government could revisit this. The honest position is that the treatment is currently settled, was recently reviewed in detail, and was deliberately left alone.

Spread betting compared to CFDs, 2026/27

The two products look similar and are taxed completely differently.

	Spread bet	CFD
Capital gains tax on profits	None	Yes — each closed contract is a disposal
Rate above the annual exempt amount	n/a	18% or 24%, depending on your income tax band
Annual exempt amount	n/a	£3,000
Stamp duty	None	None — you do not own the underlying
Losses offset against other gains	No	Yes, and carried forward if unused
Reported on self assessment	No	Yes

The honest summary: spread betting wins on profitable years, CFDs win on losing years, and the gap on any single trade is smaller than the marketing on either side suggests.

Does automating a strategy change anything?

Not in itself. The tax treatment attaches to the product you are trading, not to how you decide when to trade it. A spread bet placed automatically by a rule you wrote is still a spread bet.

What automation does change is scale and consistency, which is where the "part of a trade you already carry on" question becomes worth thinking about rather than dismissing — again, HMRC's published position is that a systematic approach does not by itself constitute a trade, but if automated spread betting became your primary livelihood, that is the point to take advice rather than to rely on a page like this one.

How this fits with Atlas Edge

Atlas Edge is a strategy builder and backtesting engine. Building and testing strategies requires no broker connection and has no residency requirement — it is available anywhere.

Live automated execution is a separate, UK-only layer, because it connects to a UK spread betting account and depends on the treatment described above. It's in development now and opening to a limited first group of UK residents after launch — join the waitlist below if that's you. You will always be the one who builds the strategy, approves it, and arms it.

Join the automation waitlist

Automated execution for UK accounts is in development and opening to a limited first group after launch. The backtest and strategy builder above are live worldwide right now.

Common questions

Answers to the usual ones

Do I need to declare spread betting profits to HMRC?: No. Spread bet profits are not reported on a self assessment return, because for most individuals they are chargeable to neither income tax nor capital gains tax.
Is spread betting still tax free if it is my full-time income?: Generally yes. HMRC's guidance is explicit that earning a living from gambling does not by itself constitute a trade. But if it is your sole source of substantial income, take a professional opinion rather than relying on the general position — if the activity were ever found to fall within the trading definition, the change in treatment would apply retrospectively.
Are CFDs tax free too?: No. CFD gains are chargeable to capital gains tax at 18% or 24% above the £3,000 annual exempt amount for 2026/27. CFDs do carry loss relief, which spread bets do not.
Can I offset spread betting losses against my other gains?: No. Because a spread bet produces no chargeable gain, it produces no allowable loss either. This is the direct trade-off for the exemption.
Does spread betting being tax free apply outside the UK?: No. The treatment follows UK tax law and applies to UK residents. Most other jurisdictions tax derivative gains.
Did the 2025 gambling tax rises affect spread betting?: No. Spread bets were explicitly excluded from the new 25% remote betting rate taking effect in April 2027. Financial spread bets remain at 3% duty, paid by the broker rather than by the customer.
Does automating a strategy change my tax position?: Not in itself. The treatment attaches to the product you trade, not to how you decide when to trade it. HMRC's published position is that having a system for placing bets does not by itself make the activity a trade.