In a business with five or ten people, the probation review usually works. The owner hired the person, worked alongside them every day, and knows exactly what they’ve delivered by the time the review date arrives.
That process doesn’t survive growth. Once a business reaches 20, 30, 50 employees, the person conducting the probation review is unlikely to be the person who made the hiring decision, and often isn’t the person who worked closest with the new employee day to day. The review still happens on schedule. However, the evidence it’s supposed to be based on, disappeared unnoticed.
This is where probation reviews start failing, due to a process that was never redesigned for the size of business now running it.
The review is only as good as what happened before it
A probation review is a decision point. It asks whether the employment relationship is working, based on what’s been observed. If nobody has been tracking that — no notes on early feedback, no record of what was flagged and when, no clarity on what “meeting expectations” actually looks like in the role — the manager walks into the review with an impression, not evidence.
That’s the moment probation reviews become risky rather than useful. A decision based on “I don’t think they’re quite right for the team” is a decision the business can’t defend if it’s challenged, and it’s often unfair to the employee, who was never told there was a concern in the first place.
Treat the weeks before the review as part of the process. Good probation management starts on day one.
Three questions the review actually needs to answer
Whoever is running the review, often a manager who inherited the responsibility, not the person who hired the employee, needs three things to make a sound call:
What was expected, specifically? Not the position description. What the role actually required in practice, and whether that was communicated clearly enough for the employee to meet it.
What’s the evidence, not the impression? Missed deadlines, output below standard, and conduct concerns are evidence. “Not quite fitting in” is not, it’s a feeling that hasn’t been traced back to a cause.
Was the gap ever raised? If a concern existed for weeks and the employee only hears about it at the final review, the review isn’t testing the employee. It’s revealing a management gap.
Get honest answers to those three, and the review writes itself. Skip them, and the review becomes a guess dressed up as a decision.
What “documented” actually means
This doesn’t require formal paperwork. A note after a check-in stating what was discussed, what the employee agreed to change, and by when, is usually enough. It’s best written the same day, while it’s still accurate.
Keep it in one place: a shared document, an email to yourself, a line in whatever system already tracks the employee. It doesn’t need a template or a sign-off process. It needs to exist, and it needs a date on it.
The test is simple. If a decision is ever questioned later, can someone show what was raised, when, and what the employee was asked to change? If the answer is no, the record is the weak point, not the decision.
What this looks like in practice
A construction site supervisor is six weeks into probation. Their crew management is solid, but they’ve twice sent subcontractors home without confirming variations with the project manager first, a cost and compliance issue, not a skills one. The manager raises it that week, agrees a simple rule with them, and notes it in a one-line email: what happened, what was agreed, the date. Three weeks later, the pattern hasn’t repeated. That note is now the evidence the final review is built on, not a memory of “a few teething issues early on.”
An NDIS support worker’s documentation is thorough, but two participants have raised that she runs sessions to a fixed routine rather than adjusting to what they need on the day. That’s a capability gap, not a conduct issue, and it’s fixable with observation and coaching, but only if it’s raised at week four, not assumed away until week twenty-four, when it’s harder to unpick from “personality.”
Neither example needed a formal process. Both needed the concern raised early, in writing, close to when it happened.
Where judgement ends and process begins
Growing businesses often carry an assumption that probation gives them more room to move than it actually does. It’s worth being precise about this, because getting it wrong is expensive.
A probation period is a contractual arrangement, generally three to six months, set by the employer to assess whether the employee and role are suitable for one another.
It’s separate from the minimum employment period under the Fair Work Act, which determines when an employee gains access to unfair dismissal protections. For an employer with 15 or more employees, that period is generally six months. For a small business employer with fewer than 15 employees, it is generally 12 months.
The two often overlap, but a probation clause doesn’t override the legal minimum, and an employee still on probation retains full workplace entitlements throughout, including leave accrual and notice.
None of that changes the judgement call at the centre of a review. It changes what the business needs to have in place before making one, a documented reason, not just a decision that “it isn’t working out.”
Fix the weeks, not just the meeting
The single change that improves probation outcomes more than any other is moving concerns forward, not saving them for the review. If something’s not landing, a skills gap, unclear expectations, or a conduct issue, the employee should hear about it while there’s still time to respond, and the manager should have a record that it was raised.
That’s not extra administration for its own sake. It’s what turns the final review from a guess into a documented, defensible decision, one that’s fair to the employee and protects the business either way it lands.
For a business that’s outgrown the stage where one person could run this from memory, that shift needs a structure behind it: clear expectations set at the start, a rhythm of check-ins that doesn’t depend on who happens to be available, and a record that holds up regardless of who’s in the room by the time the review date arrives.
Strategic HR Australia works with growing businesses to build performance and probation frameworks that scale past the point where informal tracking stops working, so the review reflects what’s actually happened, not what someone remembers.
