Starting in 2027, UK crypto platforms must keep Bitcoin used as collateral separate from coins lent out for yield. Only some assets will get trust protection, changing how users recover funds if a platform fails.
Bitcoin holders in the UK are about to see big changes in how their coins are handled if a platform goes under. The Financial Conduct Authority (FCA) will start enforcing new rules in October 2027. These rules force platforms to separate Bitcoin used as collateral for borrowing from coins handed over for yield. Only some assets will get trust protection.
Collateral and yield: a clear split
The FCA has finalized its framework. Crypto firms can now apply for authorization, but the new protections do not start until October 25, 2027. The rules are clear: Bitcoin used as collateral for borrowing must be kept safe under a trust. But coins given to a platform for yield lending can lose that trust protection while they are lent out. If a platform fails, customers who lent out their Bitcoin for yield may have to rely on contract promises, not trust-backed claims, to get their coins back.
The FCA opened its crypto authorization window on September 30, 2026, requiring firms to apply by February 28, 2027 to continue operations ahead of the full regime launch in October 2027.
The FCA says retail collateral that backs a qualifying crypto borrowing service must stay protected, except in rare cases where debt is discharged. Firms cannot take full ownership of collateralized Bitcoin unless the client has agreed in advance and the firm follows the contract. Until then, the platform must keep the coins safe and cannot treat them as its own.
Legal claims and recovery risks
The legal setup behind each service matters for users. Lending Bitcoin for yield changes the customer's claim from a trust-backed right to a contract right to get back the same amount of coins. The FCA lets platforms stop treating lent coins as client assets during the lending period, but this ends when the service is over. Whether users get their coins back depends on what the platform still holds and what the contract says. These crypto activities are not covered by the Financial Services Compensation Scheme (FSCS), so even authorized firms do not offer government-backed insurance for lost assets.
Firms must now tell customers how their assets are handled, what happens if the company goes bust, and whether coins are still protected or have changed hands. The FCA wants firms to spell out the risks, return rights, and when users can get their assets back. This makes the differences between custody, collateral, and lending clear for retail users.
The new UK regime, grounded in the Financial Services and Markets Act 2000 (Cryptoassets) Regulations 2026, expands FCA oversight to stablecoin issuance, custody, trading platforms, dealing, arranging transactions, and staking-related services. Existing FCA registration does not automatically convert to authorization under the new rules.
Custody, records, and shortfalls
Under the new rules, custody setups must use private trusts for client assets. Firms have to check daily what they hold for each client and each asset. If there is a shortfall, the trust must spell out how losses are shared and if client assets can be used to pay costs after a custodian fails. The FCA expects losses to be split fairly within each asset class. Trust protection does not mean users will always get everything back if there are losses or costs.
Staking is treated differently from lending. The FCA says staking collateral is only allowed if it follows staking rules, does not transfer full ownership, and stays protected by trust. This stops firms from using staking as a way to get around collateral protections.
Compensation and regulatory limits
Even as the FCA brings crypto under its rules, the new regime keeps these activities outside FSCS investment compensation. Crypto safeguarding, arranging safeguarding, running trading platforms, dealing in qualifying cryptoassets, stablecoin issuance, and arranging staking are not covered by government insurance. The Financial Ombudsman Service can handle complaints about regulated activities, but any payout depends on the firm's situation and is not guaranteed.
The FCA's approach is different from other countries. EgonCoin's coverage of U.S. SEC and Senate crypto exemptions shows how the UK is focusing on the legal details of each arrangement. The FCA plans more consultation in 2026 on how to handle crypto firm failures and how to distribute assets after a custodian or stablecoin issuer collapses.
With applications for authorization now open, Bitcoin holders need to check if their assets are protected by trust or exposed to platform risk. The FCA's 2027 rules will make these differences clear, but whether users recover their coins will still depend on the setup, what assets are left, and how failures are handled. The FCA wants more transparency and legal clarity, but users must pay close attention to how their coins are treated before using any service.
The FCA says the new crypto custody rules under CASS 17 will apply to regulated activities from a UK base starting October 25, 2027. The final policy overview confirms that custody of specified investment cryptoassets will first follow separate CASS 6 rules, and that safeguarding depends on written trust arrangements, not an automatic statutory trust. The rules require daily checks of client assets and clear rules for sharing losses, but do not extend FSCS protection to crypto.
When it comes to keeping digital assets safe, the difference between trust-backed custody and contract-based lending is not just a technical point. Trust structures are meant to protect client rights if things go wrong, but they do not guarantee full recovery if assets are missing or costs eat into the pool. For U.S. readers watching crypto regulation abroad, the UK's approach shows why it matters to understand exactly how your assets are held, lent, or pledged on any platform.
