Start with where the work happens
The single most useful question when planning a remote hire is not what to call them, but where their laptop physically is. UK-based hires run through UK PAYE with RTI filed on or before payday and auto-enrolment pension duties from the first qualifying employee. Someone living and working in another country generally creates obligations in that country, whatever the contract says or which bank account pays them.
That can mean a local payroll registration, employer social security at rates well above UK National Insurance in parts of Europe, and, where the person is senior enough to negotiate or conclude contracts, a permanent establishment that makes part of your profit taxable locally. None of it is a reason to avoid hiring abroad; all of it is a reason to price it before the offer letter.






