How can I check whether a provider is authorised in the UK?

Search for the firm's exact name on the Financial Conduct Authority's Financial Services Register, then check that the details match the website you are using. The FCA describes the register as a public record of firms and individuals that are, or have been, authorised, and it also lists unauthorised firms and known clone firms. Confirm that the legal entity, address and contact details agree with what you were given. If you cannot find the firm, or the details do not match, treat that as a reason to pause before sending money.¹