The IR35 part and parcel test: are you treated like staff?

In short: if you are integrated into the client's business the way an employee would be — managed like staff, given staff benefits, presented as one of the team — that points towards employment. It is rarely decisive on its own, but it is easy to get wrong in day-to-day practice, even when the contract is well drafted.

What "part and parcel" means

Courts weighing up employment status look at the whole picture. One part of that picture is whether the worker is part of the client's organisation or is an outside business providing a service to it. Contractors often work on site, attend meetings and use the client's systems — none of that is unusual. The question is whether, taken together, you look like a member of staff.

Signs that point towards employment

• Line management — a named manager who approves leave, runs appraisals or sets objectives for you personally.
• Managing the client's employees — especially line-managing permanent staff.
• Staff benefits — perks, bonuses, staff discounts, invitations to staff-only events or the Christmas party as a matter of course.
• Presented as staff — a job title in the org chart, an employee email signature or business cards with the client's branding and no mention of your company.
• Staff processes — inductions, training and policies applied to you exactly as they are to employees, beyond genuine security and health and safety rules.
• Moved between roles — being reassigned to unrelated work, as an employer would with an employee.

Signs that point away from it

• You're engaged for a defined project or deliverable and report on progress against it.
• You're clearly identified as an external supplier — a contractor pass, your company name in emails, invoices from your company.
• You don't receive staff benefits or attend staff events as of right.
• You provide your own equipment and work under your own business's insurance.

Contract clauses to check

Look for language that treats you like staff: "reporting to", "line manager", "appraisal", "the Consultant shall comply with all Client policies", or entitlements such as holiday or sick pay. Swap them for supplier language — a client contact for the project, acceptance of deliverables, and only the policies that genuinely apply to anyone on site.

Practice matters most

This factor is mostly about how the engagement actually runs, so a good contract won't save you if reality looks like employment. Keep your communications in your company's name, decline staff-only perks, and make sure you are managed on the project rather than as a person.

See also the control test and substitution. General information, not legal or tax advice.