Sick Notes Aren't a Free Pass: What Employers and Employees Need to Know

Let's clear up a common workplace myth: handing in a medical certificate doesn't automatically mean your absence is unquestionable. In fact, in legal terms, that neat little sick note is actually hearsay. And yes-your employer is allowed to challenge it.

Under the Basic Conditions of Employment Act (BCEA), employees are entitled to sick leave. Fair enough. But that right isn't a blank cheque. If you're off sick for more than two consecutive days-or more than twice in eight weeks-your employer can ask for a valid medical certificate. No certificate? Don't expect to be paid.

But here's where it gets interesting. Even if you do submit a certificate, your employer doesn't have to blindly accept it. Why? Because it's essentially written evidence from a third party (your doctor), and unless that doctor backs it up-say, with testimony or an affidavit-it can be questioned.

Courts have backed this up. In cases like Mgobhozi v Naidoo NO, it was made clear that medical certificates are not bulletproof. They're often vague, lacking detail, and open to abuse. If a doctor isn't willing to stand by their note, why should an employer? And if your employer does challenge your sick note, the pressure shifts-onto you. You now have to prove two things: that you were genuinely ill, and that your condition actually made you unable to work.

That's exactly what played out in NUMSA v Kaefer Energy Projects, where the employee failed to meet this burden and lost the case. Let's not pretend abuse doesn't happen. Employees have been caught attending rugby matches, posting on social media, or going about normal life while supposedly "booked off sick." In those situations, dismissal isn't off the table-it's often justified.

On the flip side, employers can't just act on a hunch. Any challenge must be fair, backed by evidence, and handled through proper procedures. That means giving employees a chance to explain themselves and ensuring disciplinary processes are followed correctly.

So how do you avoid this mess altogether? For employers, it starts with clear policies. Spell out what counts as a valid certificate, who can issue it, and how it should be submitted. Add a simple verification process-check dates, confirm the doctor is registered, but don't dig into private medical details.

And most importantly, apply the rules consistently. For employees, the message is simple: communicate. A sick note doesn't replace your responsibility to inform your manager that you won't be at work.

Courts have made it clear-being ill doesn't excuse silence. If you can't call, find another way. No excuses. On 20 March 2026, the Labour Court in the Western Cape dismissed an appeal by an ex employee who was dismissed for failing to inform his line manager that he was ill and for failing to produce a medical certificate.

At the end of the day, sick leave is there to protect employees-not to be exploited. Abuse it, and you risk disciplinary action or even dismissal. Handle it properly, and it does exactly what it's meant to do: support you when you genuinely need time off. The bottom line? A medical certificate helps your case-but it's not the final word.

Know your rights! The Law Desk of Fawzia Khan and Associates. Giving YOU the Power of Attorney. Call 031-5025670 or email fawzia@thelawdesk.co.za for legal assistance at competitive rates.