CryptoTax UK · Guide
OKX Tax UK — HMRC Guide for 2025/26
OKX is a major global exchange with a growing UK user base. This guide covers which OKX activities trigger UK tax, how to export your data and how to apply the HMRC matching rules correctly. Educational only — not tax advice.
Calculate my OKX tax →Which OKX activities are taxable in the UK?
Spot trades (swapping one crypto for another or selling for fiat), futures and derivatives settlements, OKX Earn income and staking rewards all potentially trigger UK tax. Spot trades and swaps are typically Capital Gains Tax events. Earn interest and staking rewards may be treated as income.
Exporting your OKX transaction history
Log in to OKX, navigate to Assets > Bills or Order History and use the export function to download your transaction history as a CSV. Export all relevant sections: spot trading history, funding account history, and earn/staking history.
Futures and derivatives on OKX
HMRC has not issued definitive guidance on crypto derivatives. UK taxpayers who trade OKX futures or perpetual contracts should take specialist advice. The answer may depend on the scale and frequency of trading.
Frequently asked questions
Do I need to declare OKX trades on my UK tax return?
If you made gains above the Annual Exempt Amount (£3,000) or if your total proceeds exceed £50,000 in a tax year, you likely need to declare them via Self Assessment. Keep full records of every OKX transaction.
Does OKX report to HMRC?
OKX is subject to CARF reporting obligations from 2026 for users in participating jurisdictions including the UK.
Can CryptoTax UK handle OKX exports?
Yes — upload your OKX CSV via Import CSV (Premium) and the engine applies the HMRC same-day, 30-day and Section 104 rules to calculate your gain or loss per disposal.
More UK crypto-tax guides
Educational guidance only. CryptoTax UK is not a regulated tax adviser and the information above does not constitute tax, legal or financial advice. Always confirm your specific position with HMRC or a qualified accountant before filing.