How Long Does a Warning Last — and When Can You Actually Rely on It?

There is no section of the Labour Relations Act that says a written warning lasts six months. Employers say it constantly, commissioners hear it constantly, and it is not law — it is convention that has hardened into assumption. What the LRA and the Code of Good Practice: Dismissal actually require is that discipline be corrective and progressive, and that a dismissal for misconduct be fair in the circumstances. The warning is evidence that you tried to correct the employee before you removed them. If that evidence is stale, vague, or about something else entirely, the dismissal falls over even where the misconduct itself is proven.

Where the validity period actually comes from

A warning's lifespan comes from your own disciplinary code, or from a collective agreement or bargaining council main agreement that binds you — not from the statute. If your code says a written warning is valid for six months and a final written warning for twelve, that is the period you are held to, because you wrote it and the employee was disciplined under it.

The practical consequence is the one employers miss: you cannot rely on a warning after the period your own code says it expires. Six months and one day later, that warning is spent. Producing it at arbitration to justify dismissal invites the commissioner to ask why you disciplined the employee outside your own rules, which shifts the hearing from the employee's conduct onto yours.

If your code is silent on validity, you are not free to treat warnings as permanent. Arbitrators generally read a reasonable period into the gap, and the further back the warning goes, the less corrective weight it carries. Silence is not an advantage — it is uncertainty you will have to argue about. A code that states periods clearly is worth more than one that leaves it open.

• Verbal (or counselling) warning — typically 3 months
• Written warning — typically 6 months
• Final written warning — typically 12 months
• Serious misconduct — dismissal may be appropriate on a first offence, with no warning at all

Expired does not mean erased — but it nearly does

An expired warning cannot be used to escalate sanction. That is the rule most employers get wrong in the other direction: having been told the warning is spent, they act as though the incident never happened.

There is a narrow, legitimate use for history. Where an employee has an entrenched pattern — the same conduct returning every seven months, timed suspiciously to the expiry of each warning — the pattern itself may be raised, not to add weight to the current offence, but to show that corrective discipline has failed and the employment relationship has broken down. That argument is only available if the record is complete, dated, and consistent. It is an argument about the relationship, not a way of resurrecting dead warnings, and a chairperson who blurs the two will hand the employee a review point.

Treat it as the exception. The default is simple: expired warning, no reliance.

Verbal warnings: real, but only if you can prove them

A verbal warning is a genuine step in progressive discipline. It is also the step most likely to evaporate under cross-examination, because "I spoke to him about it" is not evidence of a warning — it is evidence of a conversation.

Record every verbal warning in writing. That is not a contradiction. The warning is delivered verbally; the fact of it is documented: date, rule breached, what was said, who was present, and the employee's acknowledgement or refusal to acknowledge. File it. Without that note, the first rung of your progressive ladder is missing, and a chairperson working from the record will see a final warning that came out of nowhere.

The same discipline applies to counselling. If you counselled an employee on poor timekeeping in March and dismissed for it in September, the March file note is what turns a sudden dismissal into a documented process.

You cannot stack unrelated offences

This is the single most common defect we see. An employee holds a final written warning for absenteeism. Three months later they are caught being rude to a customer. The employer dismisses, reasoning that a final warning is a final warning.

Progressive discipline is offence-specific in its logic. The purpose of a warning is to correct a particular behaviour and to put the employee on notice that repeating that behaviour risks their job. A final warning for attendance does not warn an employee that insolence will get them dismissed. Stacking unrelated categories turns a corrective system into a trap, and commissioners treat it accordingly.

There are two qualifications worth knowing. First, some codes expressly provide for a general final warning covering any further misconduct — if yours does, and the employee was told so at the time, you are on firmer ground. Second, offences in the same family (unauthorised absence and late-coming; negligence and failure to follow procedure) can usually be read together. Different families cannot. If in doubt, discipline the new offence on its own merits and let the sanction match it.

The final warning that was never actually given

A warning has to reach the employee. Employers regularly produce a signed-off warning form at arbitration that the employee had never seen: a chairperson's outcome recorded on file after a hearing, an HR note of an intended sanction, a warning drafted and forgotten in a manager's drawer.

If the employee did not receive it, it did not warn them, and it cannot support escalation. Where an employee refuses to sign, that is not fatal — hand it over in front of a witness and record on the form that it was delivered and signature refused. Delivery and refusal to sign are two different things, and only the first one matters legally.

Also check what the document says. A warning that reads "conduct" or "attitude" and nothing more identifies no rule and no incident. It gives the employee nothing to correct and gives you nothing to rely on later. Every warning should carry the date of the incident, the rule breached, the required change in conduct, the validity period, and the consequence of repetition.

Fix the record before you need it

The audit takes an afternoon and it is the highest-return hour in an IR file. Pull every live warning in the business and check five things: is it dated, does it name the rule, does it state a validity period, is there proof of delivery, and has it expired.

Then check the code the warnings were issued under. If your disciplinary code is generic, borrowed, or has never been brought to employees' attention, the validity periods you are relying on may not bind anyone. A code that sits unsigned in a drawer is not a code — it is a draft. Getting the code, the warning template and the delivery process right is cheaper than defending a dismissal that fails on paperwork, and it is the groundwork that makes CCMA representation straightforward rather than a salvage operation.

The misconduct is usually not what employers lose on. The record is. For more employer guides on getting the process right, see our Insights library.

Frequently asked questions

How long is a written warning valid in South Africa?

There is no statutory period. Validity comes from your disciplinary code, contract, or applicable collective agreement. The widely used convention is 3 months for a verbal warning, 6 months for a written warning and 12 months for a final written warning, but the period that binds you is the one in your own code.

Can I dismiss an employee on a final written warning for a different offence?

Usually not. Progressive discipline is offence-specific, so a final warning for absenteeism does not put an employee on notice that insolence will end their employment. The exceptions are where your code expressly provides for a general final warning covering any further misconduct, or where the two offences fall in the same family.

Does an expired warning stay on the employee's file?

The document stays on file as a record, but it cannot be used to escalate the sanction for a new offence once the validity period has lapsed. Its only remaining use is narrow: showing an entrenched pattern where corrective discipline has repeatedly failed.

Is a verbal warning legally valid?

Yes. A verbal warning is a legitimate step in progressive discipline. It only helps you if you can prove it, so record the fact of it in writing — date, rule breached, what was said, who was present — and keep the note on file.

What if the employee refuses to sign the warning?

Refusing to sign does not invalidate the warning. Hand it to the employee in the presence of a witness and record on the form that it was delivered and that signature was refused. What matters is proof of delivery, not the signature itself.

This article is general information on South African labour law and is not legal advice on your specific situation. Speak to us about your facts.