Is Your Crypto Safer With an FCA-Registered Custodian or an Exchange?

⭐An FCA-registered custodian generally carries less platform-failure risk than an unregistered or offshore exchange, because incoming FCA safeguarding rules require your cryptoassets to be held on trust and segregated from the firm's own money — protection an unregistered platform is not required to offer, even though the full FCA custody regime only takes effect from October 25, 2027.⭐

Picture Priya, a 34-year-old teacher in Manchester with £12,000 in Bitcoin and Ether split across two platforms: £7,000 on a large offshore exchange with no UK registration, and £5,000 with a UK firm registered with the Financial Conduct Authority (FCA) under the anti-money laundering rules. She assumed both amounts carried roughly the same protection, because both platforms show a padlock icon and a "verified" badge at sign-up. They do not. If either platform fails tomorrow, the legal status of Priya's coins, and her odds of getting them back, depend almost entirely on which one she used — and neither currently gives her access to the Financial Services Compensation Scheme (FSCS), a detail the rest of this article unpacks with real numbers.

FCA-Regulated Custody vs a Crypto Exchange: What Actually Changes?

Right now, in September 2026, "FCA-regulated" custody does not exist yet for most UK crypto firms in the full sense investors assume. What exists is the anti-money laundering (AML) register the FCA has supervised since January 10, 2020, under the Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017 (MLRs). Registration checks a firm's financial-crime controls; it says nothing about whether your coins sit in a segregated account. The real custody regime — covering safeguarding, disclosure, and prudential capital — comes from the Financial Services and Markets Act 2000 (Cryptoassets) Regulations 2026, made in Parliament on February 4, 2026. The FCA published its final rules across five policy statements (PS26/9 to PS26/13) on June 30, 2026. The authorisation gateway opens September 30, 2026, closes February 28, 2027, and the regime becomes fully enforceable on October 25, 2027.

The table below compares the two options investors actually face today, plus the closest US equivalent.

What you're checking	FCA-registered custodian (post-2027 full regime)	Unregistered or offshore exchange	US equivalent
Legal basis for holding your crypto	Held on trust, segregated from the firm's own assets under adapted Client Assets Sourcebook (CASS) rules	No segregation requirement; coins can be commingled with the firm's operating funds	Segregation required only for SEC-registered advisers' qualified custodians (Rule 206(4)-2); ordinary exchange accounts aren't covered
Compensation if the firm fails	FSCS will not cover cryptoasset custody losses, confirmed in FCA Consultation Paper CP26/4 (January 2026)	No compensation scheme of any kind	No FDIC or SIPC coverage for crypto on an exchange account
Dispute resolution	Financial Ombudsman Service (FOS) jurisdiction extended to eligible complainants under the new regime	No ombudsman route; disputes go through platform terms or civil courts	No federal ombudsman; recourse is state attorney general complaints or litigation
Marketing oversight	Must comply with FCA financial promotion rules in force since October 2023	Often ignores UK promotion rules; the FCA has flagged repeated non-engagement from overseas firms	Governed by FinCEN Money Services Business (MSB) registration and state advertising rules
Cap on assets held outside strict segregation	Up to 2% of total safeguarded cryptoassets, via a "settlement float" allowance confirmed in PS26/11 (June 2026)	No cap; the entire balance can be used operationally	Varies by state trust charter; no uniform federal cap

Why Doesn't FCA Registration Mean Your Money Is Protected?

This is the gap that catches out investors like Priya. Being on the FCA's cryptoasset register today only confirms a firm passed anti-money laundering checks — it is not the same as being FCA-authorised for custody, and it does not unlock the FSCS. The FCA confirmed in January 2026, through Consultation Paper CP26/4, that it will not extend FSCS coverage to any of the new regulated cryptoasset activities, including safeguarding. That means even a fully authorised custodian operating under the 2027 regime leaves customers without the FSCS backstop that protects, say, a failed stockbroker's clients up to a set compensation limit. What the new regime does add is Financial Ombudsman Service jurisdiction for eligible complainants and a legal trust structure for your coins, so administrators handling an insolvency must treat client cryptoassets as separate from the firm's estate rather than folding them into the pool available to general creditors.

The practical number worth remembering is the 2% settlement float. Under the FCA's June 2026 policy statement, an authorised custodian can keep up to 2% of the total cryptoassets it safeguards outside strict trust segregation, to speed up client withdrawals. If your custodian discloses that it holds £50 million in client cryptoassets, up to £1 million of that could sit in an unsegregated operational pool at any given time. That is a figure you can recalculate against any published custodian balance sheet, and it is worth asking your provider directly what percentage they currently run.

What Happens If an Unregistered Exchange Fails?

An unregistered or offshore exchange owes UK customers none of the above. There is no trust requirement, no segregation cap, and no FOS jurisdiction, because the firm sits entirely outside the FCA's perimeter. If it becomes insolvent, your crypto is typically treated as a general unsecured claim in whatever jurisdiction the company is incorporated, competing with every other creditor, and administration or liquidation proceedings for offshore entities routinely take years to resolve, if they resolve at all. This is the same registration gap that has already cost UK investors in a different asset class: peer-to-peer lending platforms operating without proper FCA oversight produced a string of investor losses that mirror what unregistered crypto exchanges risk today, a pattern examined in Avoid Costly P2P Lending Mistakes Under FCA Oversight.

The scale of the risk is not abstract. Action Fraud recorded £649 million lost to investment fraud in the UK in 2024, with crypto-related scams making up 66% of those reports, according to figures published in April 2025. Separately, the FCA's Cryptoassets Consumer Research 2025 report found that UK crypto ownership fell to 8% of adults in 2025, down from 12% in 2024 — a drop from roughly 7 million to 4.5 million holders — even as the average balance held by remaining investors rose to about £1,842. Fewer people are holding crypto, but the ones who remain are carrying more value per account, which raises the stakes of picking the wrong platform.

How Does the US Custody Standard Compare?

American investors face a differently shaped gap rather than a smaller one. There is no single federal "crypto custody licence." A US exchange typically registers with the Financial Crimes Enforcement Network (FinCEN) as a Money Services Business, then layers on state money transmitter licences state by state — New York's BitLicense regime, for instance, requires 100% segregation of customer assets from company funds and reserves equal to 100% of customer liabilities, but that standard doesn't automatically apply in states without an equivalent rule. A stricter federal standard exists only for registered investment advisers: the Securities and Exchange Commission's Custody Rule (Rule 206(4)-2) requires advisers with custody of client assets to use a "qualified custodian." The SEC sent a proposed rewrite of that rule to the White House for review on August 25, 2026, but as of this writing it remains unpublished and non-binding, so the current, narrower rule still applies. Crucially, neither FDIC deposit insurance nor SIPC brokerage protection covers cryptoassets held on an exchange account, mirroring the FSCS gap on the UK side. A US investor comparing platforms should ask the same underlying question a UK investor asks: is this firm actually required to keep my coins segregated from its own balance sheet, or does a licence badge just mean it filed the right paperwork?

Checklist: What to Verify Before You Trust a Platform With Your Crypto

Before moving a meaningful balance onto any platform, work through this list and note the exact answer for each item, rather than assuming a padlock icon covers it:

1. Search the platform's legal entity name on the FCA Register or Firm Checker, and separately check the FCA Warning List for the same name.
2. Ask directly whether client cryptoassets are held on trust and segregated, and request the percentage currently held in any settlement float or operational pool.
3. Confirm in writing whether FOS or any ombudsman scheme has jurisdiction over a complaint against this specific firm.
4. Check FinCEN's MSB registry and the relevant state regulator's licence database if the platform operates in, or serves, the United States.
5. Read the platform's own insolvency or wind-down disclosure, if one exists, rather than relying on marketing language about "bank-grade security."
6. Calculate your own worst-case number: what percentage of your total portfolio sits on this one platform, and could you absorb losing it entirely tomorrow?

Key Takeaways

FCA registration today means AML supervision, not custody protection, and that will still be true even after the fuller regime arrives in October 2027, because the FCA has explicitly ruled out FSCS coverage for cryptoassets. The 2% settlement float cap is the most concrete number in the entire incoming regime, and it is one you can apply to any custodian's disclosed balance. Offshore and unregistered platforms carry the same structural risk that has already burned UK investors in peer-to-peer lending, just applied to a newer asset class.

Frequently Asked Questions

Does the FCA fully regulate cryptoasset custody in the UK right now, in September 2026? Not yet. Current FCA registration is limited to anti-money laundering supervision under the 2017 regulations. The fuller custody, safeguarding, and disclosure regime created by the Financial Services and Markets Act 2000 (Cryptoassets) Regulations 2026 only becomes fully enforceable on October 25, 2027, after an application window running from September 30, 2026 to February 28, 2027.

Will the FSCS protect my crypto once the new FCA regime is fully in force? No. The FCA confirmed in Consultation Paper CP26/4, published in January 2026, that it will not extend Financial Services Compensation Scheme coverage to any regulated cryptoasset activity, including custody. The Financial Ombudsman Service's jurisdiction will extend to eligible complainants, but that is a dispute-resolution route, not compensation for lost value.

Are US crypto exchanges required to use a qualified custodian for retail accounts? No. The SEC's qualified-custodian requirement under Rule 206(4)-2 applies to registered investment advisers with custody of client assets, not to ordinary retail exchange accounts. A proposed rewrite of that rule was sent to the White House for review on August 25, 2026, but remains unfinished.

Does FDIC or SIPC insurance cover crypto held on a US exchange? No. FDIC insurance covers bank deposits and SIPC covers securities and cash held at a broker-dealer; neither extends to cryptoassets sitting in an exchange account, regardless of whether that exchange holds a state money transmitter licence.

How can I actually check if a platform is properly registered before I deposit money? In the UK, search the firm's exact legal name on the FCA Register and the FCA Warning List. In the US, check FinCEN's MSB registry and the relevant state regulator's licence database. Neither check guarantees safety, but absence from both is a clear warning sign.

Start with the number that changes your decision fastest: ask your current platform, in writing, what percentage of client cryptoassets it holds inside a settlement float outside strict segregation. If the answer is above the 2% ceiling the FCA has set for authorised custodians, or if the firm cannot answer the question at all, that alone tells you more than any badge on its homepage. Once you have sorted out where your crypto is actually held, the next question worth working through is whether it belongs in a retirement account at all — a decision covered in When Crypto Belongs in a Roth IRA (and When It Doesn't).