First Ninety Days: Turning Probation Into a Welcome Rather Than a Warning
Photo: The White House from Washington, DC, Public domain, via Wikimedia Commons
Ask ten new starters what probation felt like and you'll usually get one of two answers. Either it was a formality that ended with an email nobody read, or it was three months of low-level dread with no idea whether they were doing well. Neither is much use to anyone.
Probation exists for a reasonable purpose: to give both sides a proper look at each other. But the way it's often run — a clause in the contract, a vague expectation, a rushed conversation in month three — makes it a retention risk rather than a safety net. Fixing it isn't complicated. It just needs designing.
What probation is, and what it isn't
Probation is a period of closer support and review. It isn't a different employment status, and it doesn't rewrite notice periods or, in most cases, change when dismissal rights begin — those depend on length of service and the reason for dismissal, so take advice on your own contract rather than assuming probation does the heavy lifting.
It's also worth noting the direction of travel. Recent and proposed reforms to UK employment law have focused heavily on probation — shorter maximum periods, clearer statutory expectations and more structure around how employers confirm or extend. Whatever the final shape, the message for managers is consistent: informal, undocumented probation is on its way out. Better to build good habits now.
Set objectives that can actually be met
Three or four objectives is plenty. They should be specific, observable and agreed in the first week — not drafted by the manager the night before the day-90 meeting.
Good objectives describe outcomes, not personalities: 'own the monthly supplier reconciliation and have it signed off independently by the end of month two' beats 'show initiative'. Add the things that genuinely matter but rarely get written down — how the person should escalate a problem, who signs off their work, which meetings they're expected to attend and contribute to.
And write them down. A shared document, visible to both sides, is kinder than a manager's memory.
The check-in rhythm
Structure beats spontaneity here. A workable pattern:
- Day one: practicalities, plus a named buddy who isn't their manager.
- End of week one: a fifteen-minute 'is anything broken?' chat. No performance content.
- Week four: a proper review against the objectives. Early enough to correct course without drama.
- Around day 45: the midpoint. This is the conversation that decides whether the rest of probation is calm or tense. Say clearly: 'On track', 'on track with these two things to sharpen', or 'here's what needs to change, and here's the support'.
- Week ten: a forward-looking review. Confirm the outcome, or flag early that an extension is likely — never as a surprise on the final day.
Half an hour at each point, written up in five lines. That's the whole system.
Documenting without building a dossier of dread
Notes should protect the employee as much as the employer. Keep them factual and forward-facing: what was agreed, what was observed, what happens next. Avoid adjectives about character. Avoid saving private messages as evidence. If a concern is real enough to write down, it's real enough to say out loud in the same week — a note the person hasn't seen is a trap, not a record.
Extending probation properly
Extensions are legitimate. What damages trust is an extension that arrives as an ambush, or one with no end date.
Do it like this: raise it at least two weeks before the original end date; explain precisely which objectives haven't been met and why; set a new end date (usually four to eight weeks); set out the specific support being provided — extra training, a reduced caseload, weekly supervision; confirm in writing; and check the contractual position with HR first, since extension terms vary.
And be honest with yourself. If the issue is that nobody gave the person a fair chance, an extension is fixing the employer's failure, not the employee's.
For candidates: what to ask at offer stage
You're allowed to interrogate probation before you accept. Ask:
- How long is it, and can it be extended? For how long, and on what basis?
- What are the objectives, and who sets them?
- Who decides the outcome — my manager, their manager, HR?
- How many formal reviews will I get, and when?
- What support is available if something isn't clicking?
- Does anything change about pay, benefits or notice during probation?
Any employer who finds those questions unreasonable is telling you something useful.
The retention case
A well-run probation period is one of the cheapest retention tools available. It tells a new starter exactly what good looks like, gives them a route to ask for help before small problems become performance issues, and leaves both sides with a clear, fair record of how the first three months went.
Ninety days is a short window to make a first impression in both directions. Design it properly and most people won't just survive it — they'll stay.