“716B Employment intermediaries to keep, preserve and provide information etc (1) For purposes connected with Chapter 7 of Part 2 (treatment of workers supplied by agencies) or Part 11 (PAYE), the Commissioners for Her Majesty's Revenue and Customs may by regulations make provision for, or in connection with, requiring a specified employment intermediary— (a) to keep and preserve specified information, records or documents for a specified period; (b) to provide Her Majesty's Revenue and Customs with specified information, records or documents within a specified period or at specified times. (2) An “employment intermediary” is a person who makes arrangements under or in consequence of which— (a) an individual works, or is to work, for a third person, or (b) an individual is, or is to be, remunerated for work done for a third person. (3) For the purposes of subsection (2), an individual works for a person if— (a) the individual performs any duties of an employment for that person (whether or not the individual is employed by that person), or (b) the individual provides, or is involved in the provision of, a service to that person. (4) In subsection (1) “specified” means specified or described in regulations made under this section. (5) Regulations under this section may— (a) make different provision for different cases or different purposes, and (b) make incidental, consequential, supplementary or transitional provision or savings. ”
“ An employment intermediary is a specified employment intermediary if at any time during a tax quarter— (a) the employment intermediary is an agency; (b) more than one individual provides services to a client under or in consequence of a contract between the employment intermediary and one or more clients; (c) those services are not provided exclusively on the United Kingdom continental shelf; and (d) the employment intermediary makes one or more payments in respect of, or connected with, the services provided by one or more individuals that— (i) is required by regulation 67B to be included in a return delivered to HMRC by the employment intermediary when the payment is made but has not been (“a reporting failure”); or (ii) is not required by regulation 67B to be included in a return delivered to HMRC by the employment intermediary when the payment is made because the individual is not an employee or treated as an employee under regulation 10 (“no reporting requirement”).”
“44 Treatment of workers supplied by agencies (1) This section applies if— (a) an individual (“the worker”) personally provides, or is under an obligation personally to provide, services (which are not excluded services) to another person (“the client”), (b) the services are supplied by or through a third person (“the agency”) under the terms of an agency contract, (c) the worker is subject to (or to the right of) supervision, direction or control as to the manner in which the services are provided, and (d) remuneration receivable under or in consequence of the agency contract does not constitute employment income of the worker apart from this Chapter. (2) If this section applies— (a) the services which the worker provides, or is obliged to provide, to the client under the agency contract are to be treated for income tax purposes as duties of an employment held by the worker with the agency, and (b) all remuneration receivable under or in consequence of the agency contract (including remuneration which the client pays or provides in relation to the services) is to be treated for income tax purposes as earnings from that employment.”