OKX is one of the world's largest derivatives exchanges by volume and holds an EU MiCA CASP authorisation via Malta's MFSA. For UK users, the picture is different: OKX is not authorised or registered by the UK Financial Conduct Authority (FCA), and it appeared on the FCA's warning list in 2021. UK residents can technically access OKX but do so without FCA protections — no FSCS compensation, no FCA recourse. Its trading fees are competitive (maker 0.08%, taker 0.10% at standard tier), it offers 350+ coins, and it has published Merkle-tree proof of reserves since the FTX collapse in 2022. This is information only, not financial advice.
OKX and the UK FCA — what UK users must know
OKX is not authorised or registered by the UK Financial Conduct Authority. The FCA added OKX (then operating as OKEx) to its warning list in 2021, flagging it as a firm providing financial services without FCA authorisation. That warning is a matter of public record on the FCA register. While the warning list entry does not mean OKX has been found to be fraudulent, it does mean UK users interact with the platform outside the UK's regulatory perimeter.
What UK FCA authorisation would mean in practice: access to the Financial Services Compensation Scheme (FSCS, up to £85,000 per eligible person for qualifying deposits), FCA complaints procedures, and the Financial Ombudsman Service. OKX, being unregistered, provides none of these protections. UK crypto promotion rules (introduced January 2024) also require that promotions are approved by an FCA-authorised person — UK users should treat any OKX advertising seen in UK channels with that context in mind.
The grey zone: OKX is not banned in the UK — it simply operates outside FCA oversight. Binance and Bybit occupy a similar position. A substantial number of UK users access these exchanges, but doing so is a decision made without statutory consumer protection. Verify OKX's current FCA status directly on the FCA Financial Services Register (register.fca.org.uk) before depositing, as that status can change.
EU regulatory standing — MiCA CASP (Malta MFSA)
For EU-based users, the picture is more favourable. OKX holds a confirmed Crypto-Asset Service Provider (CASP) authorisation under the EU's Markets in Crypto-Assets Regulation (MiCA) via Malta's MFSA — the Malta Financial Services Authority. In our June 2026 research, OKX was among the first major exchanges to obtain this authorisation, alongside Crypto.com, Gemini, and Bitpanda on the Malta pathway.
A MiCA CASP authorisation from one EU/EEA member state passports across all 27 EU member states, which means EU clients across the bloc can access OKX under the MiCA framework. It brings obligations: segregated client assets, disclosure requirements, AML/CFT compliance, and minimum capital. Verify OKX's live authorisation status on the MFSA public register (mfsa.mt) or on the ESMA interim CASP register before relying on it, as authorisations can change.
MiCA does not include a compensation scheme equivalent to the UK FSCS. A MiCA CASP licence is a consumer-protection signal, not a guarantee against loss.
OKX fees — spot trading and maker/taker structure
OKX uses a standard maker/taker fee model. At the entry retail tier, the maker fee is 0.08% and the taker fee is 0.10% — competitive by industry standards and below Coinbase's comparable retail tiers. Binance starts at 0.10% taker; Kraken at 0.40% for low-volume spot. The practical difference per trade is small, but it compounds on active trading.
OKX's fee structure has multiple VIP tiers based on 30-day trading volume and OKB token holdings. OKB is OKX's native exchange token — holding OKB unlocks progressive fee discounts, similar to how BNB operates on Binance. We do not publish specific VIP tier rates here because they change and are only meaningful above significant volume thresholds that most retail users will not reach.
Do not model your fees from any third-party source, including this review. Check OKX's live fee schedule directly — it is the only authoritative source. Also factor in withdrawal fees, which vary by asset and network. OKX supports multiple withdrawal networks per asset (for example, USDT via TRC-20 is typically cheaper than ERC-20) — selecting the right network materially affects the cost of moving funds out.
Security, proof of reserves and the 2020 withdrawal suspension
OKX's most significant historical risk event occurred in October 2020, when it suspended all cryptocurrency withdrawals for approximately five weeks under the OKEx name. The exchange stated that one of the private-key holders required to authorise large transactions was cooperating with a Chinese public security authority investigation and was temporarily unreachable. Withdrawals resumed in November 2020 and no client funds were confirmed lost — but a five-week full withdrawal freeze is material context that any prospective user should weigh.
Post-FTX (November 2022), OKX was among the first major exchanges to publish a Merkle-tree Proof of Reserves (PoR). A Merkle-tree PoR allows individual users to verify their account balance is included in the published reserve snapshot by checking their leaf node in the tree. OKX's PoR reports are published on its website and have been updated at regular intervals since launch.
Understand what PoR does and does not prove: it demonstrates that an exchange holds assets corresponding to liabilities at a point in time; it does not prove solvency, confirm that assets are unencumbered, or provide a real-time picture. The gold standard remains a full third-party audit covering both assets and liabilities — which no major exchange yet provides routinely. OKX's PoR is a positive transparency step, not a clean bill of health.
OKX's headquarters is in the Seychelles — an offshore jurisdiction. Its EU-regulated entity is the Malta MFSA-licensed arm. UK users interact with the offshore entity. This distinction matters: the entity holding your funds determines which legal system your claims fall under in a dispute.
Trading products — spot, derivatives, Web3 wallet and OKX Earn
OKX offers a broad product suite: spot trading across 350+ cryptocurrencies, perpetual swaps, dated futures, and options. Its derivatives open interest consistently places it among the top three globally — a genuine depth signal for traders who need liquidity beyond majors. Perpetual swaps are USDT-margined (linear) by default, meaning your margin and PnL are in USDT — you know your USD-denominated risk at entry.
UK users should be aware that retail crypto derivative trading (CFDs and leveraged instruments on crypto) has been banned for retail clients by the FCA since January 2021. OKX, being outside FCA regulation, operates outside this restriction — but UK users accessing leveraged products on OKX do so without FCA protections and may be breaching the spirit of the restriction even if accessing it via an unregulated offshore route. This is not legal advice; consult a regulated adviser if in doubt.
OKX Earn is OKX's yield product hub, covering staking, savings, and structured products. Earn rates change and are not guaranteed; treat any published yield as an indicative figure to verify against current live terms, not a committed return.
The OKX Wallet is a non-custodial Web3 wallet integrated into the OKX app, supporting cross-chain bridging, DeFi protocol access, and NFT trading. Assets in the OKX Wallet are not held by OKX — they remain in your self-custody. This is meaningfully different from funds held on the centralised exchange, where OKX is the custodian.
- Spot: 350+ cryptocurrencies, standard maker/taker order book.
- Derivatives: perpetual swaps, dated futures, options — UK retail derivative trading restrictions apply, verify your position.
- OKX Earn: staking, savings, structured products — yields change, not guaranteed.
- OKX Wallet: non-custodial Web3 wallet, DeFi and NFT access — self-custody, not held by OKX.
- NFT marketplace: integrated into the OKX app.
OKB token — fee discounts and platform risk
OKB is OKX's native exchange token, used primarily for trading fee discounts on the platform. Holding OKB above certain thresholds unlocks progressively lower fees, following the same model as Binance's BNB. OKB is also used in OKX's ecosystem for staking and certain earn products.
Exchange-native tokens carry a specific risk that independent analysis has identified since FTX: if the exchange faces financial difficulty, the value of its own token can collapse faster than any other asset on the platform, because the token's value is derived largely from the exchange's operational status. FTX's FTT token became worthless within 72 hours of the bank run beginning. This is the structural lesson: do not treat OKB as a hedge against OKX platform risk — it is the opposite.
We do not publish a current OKB price, market cap, or fee-discount table because these change and are only meaningful relative to current live conditions. Check OKX's official fee and token pages directly.
OKX vs alternatives for UK users
UK users choosing between OKX and regulated alternatives are making a tradeoff between product breadth and regulatory protection. Coinbase and Kraken are registered with the FCA (as crypto asset businesses under the UK Cryptoasset Registration regime) and are therefore inside the UK regulatory perimeter — neither provides FSCS protection for cryptoassets, but they sit within FCA oversight, complaints procedures, and advertising rules.
Gemini is also FCA-registered. Bitstamp holds FCA registration. These are not equivalent to being FCA-authorised for investment products, but they represent a different risk tier to an exchange on the FCA warning list.
OKX's competitive advantages over those exchanges are meaningful to active traders: deeper derivatives liquidity, a broader altcoin selection, more withdrawal network options, and generally lower maker fees at comparable volume tiers. Whether that tradeoff is appropriate depends on your use case and risk appetite — a long-term holder keeping significant assets on exchange has different exposure than an active trader cycling through positions.
This is information to frame your own research, not a recommendation. Nothing here is financial advice.
Frequently asked questions
Is OKX regulated in the UK?
No. OKX is not authorised or registered by the Financial Conduct Authority (FCA). It appeared on the FCA's warning list in 2021, flagging it as providing financial services without FCA authorisation. UK users can technically access OKX but have no FCA protections, no access to the Financial Services Compensation Scheme (FSCS), and no FCA complaints pathway. Verify OKX's current FCA status on the FCA Financial Services Register (register.fca.org.uk). This is information, not financial advice.
Is OKX safe for UK users?
OKX is a large, operationally active exchange with a Merkle-tree proof of reserves programme and an EU MiCA CASP licence via Malta. However, for UK users it operates outside FCA regulation, meaning no FSCS protection and no FCA complaints route. The 2020 five-week withdrawal suspension (under the OKEx name) is relevant historical context. Safety is relative to your use case and the capital you're considering depositing. This is information, not financial advice.
What are OKX's trading fees?
OKX uses a maker/taker model. At the standard retail tier, the maker fee is 0.08% and the taker fee is 0.10%. OKB token holders and high-volume traders access lower tiers. We do not reproduce specific VIP rates because they change — check OKX's live fee schedule directly before trading. Withdrawal fees also vary by asset and network; multi-network support (e.g. USDT via TRC-20) can materially reduce withdrawal costs. This is information, not financial advice.
Is OKX on the FCA warning list?
OKX (then operating as OKEx) was added to the FCA's warning list in 2021 for providing financial services without FCA authorisation. A warning list entry means the firm is not FCA-authorised, not that it has been found fraudulent. Verify the current status of the FCA warning list entry on register.fca.org.uk, as entries can be updated. This is factual information, not financial advice.
Does OKX have proof of reserves?
Yes. OKX publishes Merkle-tree proof of reserves (PoR), allowing users to verify their account balance is included in the reserve snapshot using their individual leaf-node hash. OKX was among the first major exchanges to publish PoR after the FTX collapse in November 2022. PoR confirms an exchange held assets at a point in time; it does not confirm solvency, establish that assets are unencumbered, or provide a real-time picture. It is a transparency step, not a substitute for a full third-party audit. This is information, not financial advice.
What happened when OKX suspended withdrawals in 2020?
In October 2020, OKEx (now OKX) suspended all cryptocurrency withdrawals for approximately five weeks. The exchange stated that a key private-key holder — required to authorise large transactions — was cooperating with a Chinese public security authority investigation and was temporarily unreachable. Withdrawals resumed in November 2020. No client funds were confirmed lost. The incident remains the most significant operational risk event in OKX's history and is relevant context for assessing the platform today.
Is OKX MiCA-licensed?
Yes — OKX holds confirmed EU MiCA CASP (Crypto-Asset Service Provider) authorisation via Malta's MFSA (Malta Financial Services Authority) per our June 2026 research. This authorisation passports across all 27 EU member states. Verify the live entry on the MFSA register at mfsa.mt or the ESMA interim CASP register. Note that MiCA CASP authorisation applies to OKX's EU-regulated entity; UK users interact with OKX's offshore entity and UK FCA registration is separate (and absent). This is information, not financial advice.
Can UK users trade crypto derivatives on OKX?
Technically yes — OKX offers perpetual swaps, futures, and options. However, the FCA has banned retail crypto derivative trading (CFDs on crypto) for UK retail clients since January 2021. OKX, operating outside FCA regulation, is not bound by this restriction, but UK users accessing leveraged crypto products through an unregulated offshore exchange do so without FCA protections and without the retail safeguards that FCA-regulated firms must provide. Trading leveraged crypto derivatives is extremely high risk — the majority of retail traders lose money. This is not financial advice; consult a regulated adviser.
Sources & further reading
An independent publisher mapping the regulation of cryptocurrency exchanges. Our editorial desk verifies every licence and availability claim against primary sources — the ESMA MiCA register, the FCA register, ASIC, MAS, VARA and each exchange's own terms — and never accepts payment for a better assessment or placement. We publish information only; nothing here is financial advice.