Choosing a plan
Waiting periods, PMBs and penalties
By Naledi Mokoena · 7 min read · Updated 24 June 2026
When you join a medical scheme in South Africa, three rules shape your early cover, namely waiting periods that delay cover for a time, Prescribed Minimum Benefits that every scheme must cover, and a late-joiner penalty for joining late. Understanding all three up front prevents nasty surprises in your first year of membership.
These rules come from the Medical Schemes Act and apply across all registered schemes, not just one. They balance protecting members against people only joining when they are already sick.
This guide explains each rule and what you are entitled to.
Waiting periods
A scheme can apply two kinds of waiting period to a new member. A general waiting period of up to 3 months delays most claims, though you still pay contributions. A condition-specific waiting period of up to 12 months delays cover for a named pre-existing condition. Which applies depends on your circumstances and whether you had recent prior cover. If you move between schemes without a break, some waiting periods may be reduced or waived.
Prescribed Minimum Benefits (PMBs)
PMBs are a defined set of conditions every registered scheme must cover, regardless of your plan. They include around 270 medical conditions, a set of 26 chronic conditions on the Chronic Disease List, and any emergency medical condition. The scheme must cover the diagnosis, treatment and care costs of PMBs, subject to using designated providers and treatment protocols. This is your safety net even on the cheapest plan.
Late-joiner penalties
If you first join a medical scheme after age 35 without continuous prior cover, the scheme can add a late-joiner penalty as a percentage of your contribution. The penalty rises with the number of years you were without cover after 35, and it can apply for the rest of your membership. The way to avoid it is to take out cover earlier and keep it continuous.
How the rules fit together
| Rule | What it does | Maximum / scope |
|---|---|---|
| General waiting period | Delays most claims | Up to 3 months |
| Condition-specific waiting period | Delays cover for a pre-existing condition | Up to 12 months |
| PMBs | Conditions that must be covered | ~270 conditions, 26 chronic, emergencies |
| Late-joiner penalty | Adds to contribution for joining late | Percentage, can be permanent |
Your rights and how to complain
A scheme must cover PMBs even during waiting periods in a genuine emergency, and it must apply waiting periods and penalties strictly within the law. If you think a scheme has applied a waiting period, refused a PMB or set a penalty incorrectly, you can challenge it. If a scheme does not resolve a complaint, you can escalate to the Council for Medical Schemes (CMS) at medicalschemes.co.za, the statutory regulator for all registered medical schemes in South Africa.
Frequently asked questions
What is a waiting period on medical aid?
A waiting period delays cover for new members. A general waiting period of up to 3 months delays most claims, while a condition-specific waiting period of up to 12 months delays cover for a named pre-existing condition. You still pay contributions during it.
What are Prescribed Minimum Benefits?
PMBs are a defined set of conditions every registered scheme must cover regardless of your plan, including around 270 conditions, 26 chronic conditions and emergencies. The scheme must cover their diagnosis and treatment, subject to designated providers and protocols.
Can a scheme refuse to pay a PMB?
A scheme must cover PMBs, but it can require you to use designated service providers and follow treatment protocols. If you use a non-designated provider for a PMB, a co-payment may apply. A genuine emergency PMB must still be covered. Challenge wrongful refusals with the CMS.
What is a late-joiner penalty?
If you first join a scheme after age 35 without continuous prior cover, a penalty is added as a percentage of your contribution. It rises with the years you were uncovered after 35 and can last for the rest of your membership.
Do waiting periods apply if I switch schemes?
If you move between schemes without a significant break in cover, some waiting periods may be reduced or waived, though a new scheme can still apply a general waiting period in some cases. Tell the new scheme about your prior continuous cover.
Are PMBs covered during a waiting period?
A genuine emergency PMB must be covered even during a waiting period. For non-emergency care, a condition-specific waiting period can still delay cover for a pre-existing condition. Confirm the exact rules with your scheme and challenge wrongful refusals.
