Probation Review Documentation: Essential Records to Keep Before Day 182

Employers who dismiss a probationary employee without documented evidence of what was discussed, what was expected, and what support was offered are the ones who lose at tribunal — even when the dismissal itself was reasonable. From 1 January 2027, the unfair dismissal qualifying period drops to six months under the Employment Rights Act 2025. That makes structured, contemporaneous probation records a legal necessity, not optional good practice.

ProbationWatch generates ACAS-aligned review records, sealed PDF exports, and a tamper-evident evidence chain — so your documentation is audit-ready before Day 182. See how it works →

What Documentation Do Employers Need During Probation?

At a minimum, you need a clear written record covering five things for every probationary employee: the objectives they were set, the feedback they received, the support they were given, the outcome of each review meeting, and the rationale behind any final decision.

This isn't about creating bureaucratic overhead. It's about ensuring that if an employee challenges a probation decision — or the Fair Work Agency requests your records — you can demonstrate a fair, structured process from Day 1 to Day 182.

ACAS guidance is clear: employers should raise concerns with employees in writing and provide a reasonable opportunity to improve before taking formal action. Without documentation proving this happened, the conversation may as well not have occurred.

The records that matter

Every probation file should contain these core documents:

Written objectives and success criteria — Set within the first two weeks. These anchor every subsequent review to measurable standards. Without them, any later performance concern looks arbitrary.

Meeting notes from each review — Dated, signed by both parties where possible, summarising what was discussed, what feedback was given, and what actions were agreed. These notes are your primary evidence that a fair process took place.

Evidence of support provided — Training records, mentoring arrangements, reasonable adjustments, additional resources. Tribunals look specifically at whether the employer tried to help the employee succeed before deciding to dismiss.

Written communications about concerns — Emails, letters, or formal notes raising specific performance or conduct issues. Verbal warnings that were never recorded effectively do not exist in a tribunal setting.

The final decision record — Whether the outcome is confirmation, extension, or dismissal, it must be documented with clear reasoning tied back to the objectives, the evidence, and the support provided.

Extension rationale (if applicable) — If probation is extended, the reasons must be recorded in writing alongside new objectives and a defined review date. An undocumented extension can look like the employer was simply deferring a difficult decision.

What Does ACAS Say About Probation Documentation?

ACAS does not prescribe a specific template for probation records, but its guidance on performance management and the ACAS Code of Practice on Disciplinary and Grievance Procedures sets the standard tribunals will apply.

The core principle: employers should take steps to help an employee improve before starting a formal procedure. That means documenting the support, the feedback, and the employee's response at each stage.

Failure to follow the ACAS Code of Practice can result in a tribunal increasing compensation awards by up to 25%. That uplift applies on top of whatever the base award would have been — and from January 2027, the compensation cap for unfair dismissal is removed entirely, meaning awards will be based solely on actual financial loss with no statutory ceiling.

The practical takeaway: ACAS-aligned documentation is not a nice-to-have. It is the difference between a defensible decision and an expensive one.

ProbationWatch structures every review around ACAS-aligned fields — objectives, feedback, support, decisions — so nothing gets missed. Start a free trial →

What Happens If You Don't Document Probation Reviews?

The consequences are specific and measurable.

Tribunal risk escalates sharply. An employer who dismisses a probationary employee after Day 182 without documented evidence of a fair process is exposed to an unfair dismissal claim. From January 2027, that claim carries uncapped compensation — meaning a senior hire on a substantial salary could generate a six-figure award if the tribunal finds the process was unfair.

The ACAS uplift compounds the problem. If the tribunal also finds the employer failed to follow the ACAS Code of Practice — which is hard to demonstrate without records — the compensation award can be increased by up to 25%.

The Fair Work Agency can request records proactively. The FWA, which launched on 7 April 2026, has the power to investigate employers based on sector, size, and location — not just in response to complaints. When they ask for employment contracts, meeting notes, termination letters, and company policies, "we discussed it but didn't write it down" is not a defensible answer.

Your own managers become a liability. Fewer than half of UK organisations provide line manager training on managing probation, according to Brightmine's 2025 research. Without structured documentation requirements, managers make verbal commitments, skip reviews, and leave no trail — creating risk that HR discovers only when a claim arrives.

How Do You Write a Probation Review in the UK?

A probation review should be a structured meeting with a written record produced immediately afterwards. Here is what each review document should contain:

Step 1: Preparation before the meeting

Review the employee's objectives, any previous meeting notes, feedback from colleagues or supervisors, and any attendance or performance data. Prepare specific examples to discuss — both positive and areas of concern.

Step 2: During the meeting

Cover four things in every probation review meeting. First, progress against each written objective. Second, specific feedback — what is going well and what needs to change, with concrete examples. Third, any support the employee needs or has been given. Fourth, agreed actions for the next period, with dates.

Give the employee genuine opportunity to respond, raise concerns, and ask questions. Record that this happened.

Step 3: The written record

Produce a written record within 48 hours containing the date, attendees, a summary of what was discussed against each objective, the feedback given, the support agreed, the actions for the next period, and the overall assessment. Both parties should sign or acknowledge the record.

Step 4: Store and secure

Records should be stored in a consistent, accessible, and secure format. Loose emails and desktop files are not reliable — they can be lost, altered, or overlooked. A centralised system with date-stamped, unalterable records is the standard the Fair Work Agency and tribunals will expect.

Can an Employee Challenge a Probation Dismissal Without Documentation?

Yes — and the employer's lack of documentation is often what makes the challenge succeed.

From 1 January 2027, an employee with six months' continuous service can bring an unfair dismissal claim. The burden is on the employer to show that the dismissal was for a fair reason and that a fair procedure was followed. If you cannot produce records showing what objectives were set, what feedback was given, what support was offered, and why the decision was made, the tribunal is likely to find the procedure was unfair — regardless of whether the underlying performance concerns were genuine.

Employment law specialists are explicit on this point: the decision to dismiss may be entirely reasonable, but without documentation, you cannot prove it was reached fairly.

Only one in five employers had reviewed or updated their probation policies in anticipation of these changes at the time of Brightmine's 2025 survey. That means four out of five are likely still running processes that will not withstand scrutiny under the new regime.

What Should a Probation Review Template Include?

A robust probation review template covers seven fields:

Employee details and review date — Name, role, start date, probation end date, review number (e.g., "Review 2 of 3").

Objectives and success criteria — Restated from the original probation plan, with space to record progress against each one.

Performance assessment — Specific, evidence-based commentary on what the employee is doing well and where they are falling short. Avoid vague language like "not a good fit" — tribunals expect concrete examples.

Feedback given — What exactly was communicated to the employee during the meeting, including any concerns raised.

Support and development — Training completed, mentoring provided, reasonable adjustments made, resources offered.

Actions and next steps — What the employee needs to do before the next review, with measurable targets and a clear deadline.

Outcome and signatures — Whether the employee is on track, requires additional support, or is at risk of not passing probation. Signed and dated by both parties.

ProbationWatch auto-generates structured review records with these fields built in, exports them as sealed PDFs, and logs every record to a tamper-evident SHA-256 evidence chain. Compare plans →

Building Your Evidence Chain: From Review Notes to Audit-Ready Records

Documentation alone is not enough if the records can be questioned. Tribunals and the Fair Work Agency will assess not just whether records exist, but whether they are credible — were they created at the time, or assembled after a dispute arose?

This is where the integrity of your records matters. Date-stamped records produced at the time of each review carry far more weight than retrospective summaries. Records stored in a system with an audit trail — where edits are logged and originals preserved — are significantly harder to challenge than Word documents pulled from a manager's email.

ProbationWatch addresses this by sealing each review record as a PDF at the point of creation and logging it to a SHA-256 hash chain. In practical terms, this means each record is mathematically linked to the one before it — any attempt to alter, delete, or insert a record after the fact breaks the chain and is detectable. Think of it like a wax seal on a letter: if someone breaks and reseals it, the tampering is visible.

For employers preparing for Fair Work Agency scrutiny or potential tribunal proceedings, this level of record integrity moves documentation from "we think we kept notes" to "here is a verifiable, unbroken evidence trail."

A Practical Documentation Timeline: What to Record and When

Mapping documentation to ProbationWatch's alert sequence gives managers a clear schedule:

Day 1–14: Set the foundation. Issue written objectives, confirm the probation period and review dates in writing, and ensure the employee acknowledges receipt. This is the baseline every subsequent review will reference.

Day 30, 60, 90: Regular check-ins. Brief but documented. Record progress, flag early concerns, note support provided. These do not need to be formal — but they must be written down.

Day 150: Warning window. If there are unresolved concerns, this is the point to escalate. Produce a formal review record detailing the specific issues, the support already given, and the actions required before the next checkpoint.

Day 165: Escalation. If the employee has not improved, document the gap between expectations and performance with evidence. Confirm in writing what has been communicated and what the possible outcomes are.

Day 175: Decision week. Conduct the final formal review. The written record should set out the complete picture: original objectives, review history, support provided, current performance, and the recommended outcome — confirm, extend, or dismiss.

Day 182: Final decision. The outcome must be recorded, communicated in writing, and stored. If the decision is dismissal, the record must demonstrate that the process was fair, the reasons were genuine, and the employee was given the opportunity to improve.

Frequently Asked Questions

What documentation do employers need during probation?

Employers should maintain written objectives, dated meeting notes from each review, records of feedback given and support provided, written communications about concerns, and a documented final decision with clear reasoning. These records form the evidence base for demonstrating a fair process if challenged.

What records should be kept during a probation period?

At minimum: the initial probation plan with objectives and success criteria, notes from every review meeting (signed where possible), evidence of training and support, any written warnings or concern letters, and the final outcome record. If probation is extended, the rationale and new objectives must also be documented.

What does ACAS say about probation documentation?

ACAS guidance requires employers to raise performance concerns in writing and give employees a reasonable period to improve before taking formal action. The ACAS Code of Practice on Disciplinary and Grievance Procedures sets the standard tribunals apply — and failure to follow it can increase compensation awards by up to 25%.

What happens if you don't document probation reviews?

Without documentation, employers cannot demonstrate a fair process at tribunal. From January 2027, unfair dismissal claims are available from six months' service with uncapped compensation. The Fair Work Agency can also request probation records proactively — and undocumented processes offer no defence.

How do you write a probation review in the UK?

Prepare by reviewing objectives and previous notes. During the meeting, cover progress against each objective, give specific feedback, discuss support needs, and agree next actions. Produce a written record within 48 hours covering all points discussed, and have both parties sign it.

Can an employee challenge a probation dismissal without documentation?

Yes. From January 2027, employees with six months' service can claim unfair dismissal. The employer bears the burden of proving fair reason and fair procedure. Without documented evidence of objectives, reviews, feedback, and support, that burden is extremely difficult to meet.