Decide by looking at the work, not the vacancy. Four questions settle most cases: how long the need will last, how central the work is to what the business does, how much the role depends on knowledge that builds up over time, and how steady the volume is. Work with a defined end, a project boundary or a seasonal peak usually suits contract staffing. Work that is ongoing and builds knowledge the business relies on usually suits a permanent hire.
This post is about that business decision. It does not cover the statutory side of contract staffing. Who employs the deployed staff, who handles payroll and statutory matters, and what each party is responsible for are set out in the staffing agreement and reviewed by a qualified professional for your situation.
Start with the work, not the request
Most staffing decisions begin with a manager saying they need two more people. The request arrives already shaped as a hire, and the question of how to fill it is skipped. A better first step is to describe the work itself: what will be done, for how long, at what volume, and what happens to it when the period ends.
Once the work is written down, the choice between a contract arrangement and a permanent role is usually much clearer than the original request suggested.
Four questions that decide it
- 1
How long will the need last?
If the work has a known end date, such as a project, a contract with a customer or a seasonal period, a contract arrangement fits its shape. If nobody can name an end date, and the honest answer is that the work will continue, that points towards a permanent role.
- 2
How central is the work?
Some roles sit at the heart of what the business sells, knows or is trusted for. Others support the core without defining it. Roles that hold key customer relationships, make judgement calls on behalf of the business or carry its methods usually belong in the permanent team.
- 3
Does the role build knowledge over time?
If a person becomes noticeably more valuable in their second year than in their first month, because they learn your systems, customers or processes, losing them at the end of an assignment is costly. Where the work can be learnt quickly and done well from the start, that cost is lower.
- 4
How steady is the volume?
Steady, predictable work suits a permanent team sized to it. Work that rises and falls, such as a festive peak, a new site in its first months or a backlog to clear, is where contract staffing earns its place, because the numbers can follow the work.
A grid you can fill in ten minutes
Put the role through each question and mark which way it leans. The grid does not make the decision for you, but it makes the reasons visible to everyone involved.
Role / site ______________________
Requested by ______________________ Date ____/____
Question Leans contract Leans permanent
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1. Duration of the need known end date no end in sight
2. Centrality of the work supports the core is the core
3. Knowledge built over time quick to learn grows with tenure
4. Volume rises and falls steady
Marks: contract ____ permanent ____
If mixed, can the role be split? Y / N How: ______________
Review date for this decision: ____/____Mostly left means a contract arrangement is worth exploring. Mostly right means a permanent hire is likely to serve you better. A mix is the most interesting result, and it often means the role contains two different jobs.
When the answer is both
A mixed result is common and useful. Imagine, as an illustrative example, a distribution business opening a new warehouse ahead of its busiest season. It needs a large picking team for a few months and a supervisor who will run the site for years. Treated as one hiring request, the decision is confusing. Split into two, it is simple: the peak team may suit contract staffing, while the supervisor is a permanent role filled through talent acquisition.
The same split works over time. A business can bring in contract staff for an immediate need while a permanent search runs in parallel, with each scoped separately so that nobody confuses the two arrangements.
Common mistakes
- Using contract staffing to postpone a headcount decision. If the work is ongoing and central, a contract arrangement delays the decision rather than making it, and the role keeps restarting with each new person.
- Contracting roles that hold relationships. A person who is the main contact for important customers or suppliers takes that relationship with them when the assignment ends.
- Hiring permanently for a peak. A team sized for the busiest month is oversized for the rest of the year, and the business then looks for work to fill the gap.
- Never revisiting the choice. The work changes. An arrangement that made sense for a six-month project may no longer fit once the project has become a permanent part of the business.
- Leaving deployed staff out of the site induction. People working at your site need to know the site, its rules, its safety arrangements and whom to ask, whatever arrangement brought them there.
What to settle before anyone is deployed
If the grid points towards contract staffing, the next step is to agree the arrangement itself, in writing, before anyone starts. Who employs the deployed staff, whether payroll and statutory handling are included, and what each side is responsible for are set out in the agreement and reviewed by qualified professionals. These are not points to decide by habit or by copying the last arrangement.
Alongside the agreement, a few practical points make the arrangement work day to day.
- A written requirement covering the roles, numbers, site, working pattern, period and the skills that matter
- One named person at your site who confirms attendance and is the contact for questions
- An agreed routine for timesheets and for correcting them before they are used for pay or billing
- A site induction for every deployed person before their first shift
- An agreed way of handling a replacement, an exit or the end of the assignment
- A date on which the arrangement will be reviewed
Review the decision, not just the people
Put a review date on every contract arrangement when it starts, and at that date ask the four questions again. If the work has ended, the arrangement ends with it. If the peak has become the normal level of work, or the role has started to hold knowledge the business depends on, it may be time to plan a permanent role instead. That conversation belongs in your workforce planning, not in a rushed request from a manager whose contract staff are about to leave.
Where GullyHR fits
GullyHR provides contract staffing and talent acquisition as separate services, each scoped in writing. Where it helps, we can work through the questions above with you before you choose a route, and suggest whether one service, the other or both suit the work. The decision on who is deployed to your site, and who is hired onto your rolls, stays with you.
