Cryptoasset firms are days away from the FCA opening its authorisation gateway on 30 September 2026. In an ideal world, the regulatory perimeter – enacted by Parliament in legislation, and (where appropriate) supplemented by interpretative Perimeter Guidance from the FCA – would have been finalised some time ago, allowing such firms to make strategic decisions about their commercial and regulatory objectives in the UK.
We are not living in that world. Cryptoasset firms, their investors and potential counterparties, as well as traditional financial institutions, financial market infrastructures, and asset managers looking to make innovative use of blockchain technology and tokenisation, are instead faced with an exceptionally fast-moving environment.
In April, we published an article The importance of paying attention: The FCA's consultation on cryptoassets perimeter guidance has been followed almost immediately by further legislative changes to the perimeter, which examined the FCA's consultation on cryptoassets Perimeter Guidance (PERG), as well as the evolving legislative position. This is very much the sequel to that article.
In the space of less than 24 hours, on 15 and 16 September 2026, there were two major developments affecting the perimeter:
- The Financial Services and Markets Act 2000 (Cryptoassets) (Miscellaneous Amendments) Regulations 2026 (the Amending SI) were laid before Parliament. This is the final version of a draft that we commented on in the article linked above – and its content marks a step forward.
- The FCA published PS26/18, which incorporates the "finalised" chapter 18 of the FCA's Perimeter Guidance (PERG).
The quotation marks around the word finalised are deliberate, because this is not the end of the matter. When firms ask, "Do we need authorisation, and if so, for what activities?" the answers, in some cases, remain unclear.
PERG 18 reflects the law as it is currently on the statute book. The Amending SI is not yet in force (although we believe that firms can be fairly confident that it will become the law in the near future), and it makes further changes to the cryptoassets regulatory perimeter. The single biggest change is the addition of a new exclusion which will help firms that want to facilitate payments using stablecoins, which we describe more fully below. These changes are not reflected in PERG 18 and, by definition, the FCA must reflect the law as it stands. The FCA has committed to consulting on additional Perimeter Guidance "in early Q4 2026". We read that to mean, in essence, as soon as the Amending SI becomes law.
One point that comes across very strongly in PS26/18 is that a lot of the feedback given to the FCA related to the legislative design of the perimeter, and not, in fact, to the FCA's interpretation. The FCA must deal with the law as it stands and, as it notes in several places within its Policy Statement, it cannot use PERG to amend the law or create exclusions where none exist.
This article focuses on, and highlights, the key changes to PERG the FCA has made following consultation; these are broadly welcome. We also pick out the key additional changes made by the Amending SI. We have said previously, more than once, that time is of the essence (including in the fintech section of our Financial Services End of Summer 2026 Postcard), but that is true now more than ever. The picture is sufficiently complex that we are not surprised that PS26/18 says in more than one place that firms should obtain legal advice - a sentiment with which (perhaps, unsurprisingly) we wholeheartedly agree.