TUPE protects employees where a qualifying business or service-provision transfer takes place. Generally employment, contractual terms and continuous service transfer to the new employer, subject to exceptions (including some occupational pension rights). Whether TUPE applies to a particular sale or outsourcing arrangement depends on the facts. See Acas TUPE guidance; Northern Ireland rules and advice routes may differ.
TUPE covers two situations: business transfers, where a business or part of one is sold and keeps its identity; and service provision changes, where a service such as cleaning, IT or catering is outsourced, moved between contractors, or insourced.