Forex tax UK & Ireland: what you need to know in 2026?

UK: three scenarios

Scenario A: occasional trader, spread betting account. Tax-free in the UK (HMRC treats it as gambling). Most retail forex via UK brokers like IG and CMC qualifies.

Scenario B: CFD trader. Capital Gains Tax applies. Annual allowance £3,000 (2024/25), then 10-20% on gains depending on income bracket.

Scenario C: full-time trader, badges of trade triggered. Income tax + National Insurance applies. Marginal rate 20-45%.

Ireland

Spread betting: not regulated, mostly unavailable to Irish residents. CFD trading: Capital Gains Tax at 33%, annual exemption €1,270.

Frequent trading can be classified as 'trading' rather than investment, falling under Income Tax. Threshold is fuzzy, depends on volume and intent.

Practical tips

Keep all trades in a spreadsheet or get a year-end statement from your broker. You need this if HMRC or Revenue ask.

Deposit and withdraw via your own bank account, not via intermediaries. Audit trail must be clean.

When in doubt: consulting a tax advisor costs £150-200 for one conversation and can save you thousands or prevent issues.

Bot trading specifically

Bot trading is a grey zone. Argument against income classification: you don't perform the labor, the bot does. Argument for income classification: you chose the bot, monitor it, profit is direct from your effort. No clear case law yet.

Most retail bot users with €5k-20k accounts fall under CGT in UK / 33% CGT in Ireland. Above that, talk to a specialist.

Disclaimer

This is not tax advice. We are traders, not accountants. For your specific situation: speak to a tax advisor with experience in retail trading.