Put a date in the diary, in pencil. The Financial Conduct Authority has confirmed it will consult on decentralised finance in late 2026, per the regulator’s published plans, alongside updates to its financial-crime guidance. A consultation is not a rulebook — it is the regulator thinking out loud and inviting answers — but the questions a regulator chooses to ask are usually a map of where the rules will go.

The question DeFi has dodged

The hard problem is the one the industry has argued about since the term was coined: when is a thing actually decentralised, and when is “decentralised” a costume worn by an ordinary firm? A protocol may be autonomous code, but the website you reached it through, the company that built that website, and the wallet software that signed your transaction are all rather more identifiable. As of this writing, the FCA has not said where it will draw that line — that is what the consultation is for — but interfaces and front-end operators are the obvious place a perimeter can attach, because they are the part with a front door and a legal name.

Wallet software sits in the same weather system. A wallet that merely holds your keys is one kind of thing; a wallet that routes, recommends, swaps, or stakes is edging toward activity that regulators recognise. The financial-crime guidance updates matter here too: screening, sanctions exposure, and the handling of tainted funds are questions that reach interfaces regardless of how decentralised the plumbing underneath claims to be.

What to do with this information

If you build in this space: read the consultation when it lands and answer it — consultations are shaped by the people who show up. If you use DeFi from the UK, expect the interfaces you rely on to change — some will seek authorisation, some will geoblock, and some will discover a sudden enthusiasm for sufficient decentralisation. Plan for the possibility that a front-end you use disappears, and know how to reach your positions without it.

And the briefing holds regardless of what the consultation says. No regulatory regime will ever need your seed phrase. Not typed into a form, not read over a call, not photographed for “compliance”. The phrase stays offline, always, for everyone.

DeFi remains a high-risk corner of a high-risk asset class — smart-contract failure does not wait for guidance — so do your own research before you connect a wallet to anything, and size what you deploy accordingly.