Regulation · Instrument · United Kingdom · Regulator rule or rulebook · Financial Conduct Authority
FCA Handbook CASS 6: Custody rules
The custody chapter of CASS, covering how firms hold, deposit with third parties, use and reconcile clients' safe custody assets. It also covers custody of tokenised securities (relevant specified investment cryptoassets) under the new crypto regime.
In force · part of FCA Client Assets Sourcebook (CASS)
Key points
- Covers holding client assets, depositing them with third parties, use of safe custody assets, and records, accounts and reconciliations.[1]
- Firms safeguarding relevant specified investment cryptoassets must apply CASS 6 rather than CASS 17.[2]
Timeline
- 25 Oct 2027 · Amended · upcomingFuture version takes effect alongside the cryptoasset regime.[1]
Deployments operating under it
None recorded with a source yet.
Sources
- [1]CASS 6 Custody rules — FCA Handbook. Accessed 12 Oct 2026.A
- [2]Cryptoasset regime: final rules and guidance (policy statements PS26/9 to PS26/13) — Financial Conduct Authority, 30 Jun 2026. Accessed 12 Oct 2026.A