How it works
How medical aid works in South Africa
By Naledi Mokoena · 7 min read · Updated 24 June 2026
- Regulator
- Council for Medical Schemes (medicalschemes.co.za)
- Law
- Medical Schemes Act 131 of 1998
- Rating
- Community-rated (same price regardless of health)
- Minimum cover
- Prescribed Minimum Benefits (PMBs) on every plan
A medical aid (medical scheme) is a not-for-profit member fund that pays your healthcare costs in exchange for a monthly contribution, with all schemes regulated by the Council for Medical Schemes (CMS). You pick a plan, pay a contribution each month, and the scheme covers care according to that plan's rules and limits.
Medical schemes in South Africa are run under the Medical Schemes Act, so they are community-rated. That means the scheme cannot charge you more because you are older or sicker, and it cannot refuse to take you on. The trade-offs are waiting periods, late-joiner penalties and benefit limits, which this guide explains.
This is the starting point for the rest of our guides. Once you understand how the money flows, choosing a plan and using your benefits gets a lot simpler.
Scheme vs administrator vs broker
Three different roles often get confused:
- The scheme is the member fund that holds the money and pays claims (for example Discovery Health Medical Scheme, Bonitas, GEMS).
- The administrator runs the admin and systems for the scheme (Discovery Health is the administrator for the Discovery scheme).
- The broker is an optional adviser who helps you choose a plan. A broker is paid by the scheme and may not charge you extra for the advice.
Where your contribution goes
Your monthly contribution is usually split into two buckets:
- Risk pool - the shared pot that pays for hospital admissions, PMBs and big claims.
- Medical savings account (MSA) - on some plans, a portion is set aside as your own savings for day-to-day costs like GP visits and medicine.
Hospital plans put almost everything into the risk pool. Comprehensive plans add savings and day-to-day benefits on top, which is why they cost more.
What every plan must cover
By law, every registered medical scheme must cover the Prescribed Minimum Benefits (PMBs). These are roughly 270 conditions plus 27 chronic conditions and any emergency, and the scheme must pay for diagnosis, treatment and care in full when you use the correct provider. PMBs are your safety net even on the cheapest plan. See our prescribed minimum benefits guide for the detail.
Limits, savings and self-payment gaps
Outside PMBs, plans set limits. Day-to-day benefits and savings can run out before year end, which leaves you in a self-payment gap until the next benefit kicks in. Co-payments and sub-limits also apply to specific procedures. Understanding these is the difference between a plan that works for you and one that surprises you with bills. Our guides on co-payments and sub-limits and the medical savings account break this down.
Joining, waiting and penalties
When you join, the scheme can apply a waiting period (up to 3 months general, up to 12 months for a pre-existing condition) before you can claim for non-PMB care. If you join a scheme for the first time after age 35, a late-joiner penalty may be added permanently. Both are legal and common, so plan your timing. See waiting periods and exclusions and the late-joiner penalty guide.
Your rights and how to complain
You have real rights as a member. A scheme cannot reject you for being unwell, cannot cancel your membership unfairly, and must pay PMBs in full when you follow the rules. If a scheme refuses a valid claim or treats you unfairly, you can complain to the Council for Medical Schemes at medicalschemes.co.za. The CMS is free to use and exists to protect members.
Frequently asked questions
Is medical aid the same as health insurance?
No. A medical aid (medical scheme) is regulated by the Council for Medical Schemes and must cover Prescribed Minimum Benefits. Health insurance pays fixed cash amounts and is regulated separately, so it is not a substitute for a medical scheme.
Can a medical aid refuse to accept me?
No. Schemes are community-rated and open, so they cannot refuse you for being older or having a health condition. They can apply waiting periods or a late-joiner penalty, but they must take you on.
Is medical aid compulsory in South Africa?
No, medical aid is not compulsory. Some employers make it a condition of employment, but there is no national law forcing private cover. State healthcare remains available to everyone.
How much does medical aid cost?
Costs vary widely by plan and number of dependants. As an indicative range, basic hospital plans often start in the low hundreds of rand a month per adult, while comprehensive plans can run into several thousand. Always get a current quote.
What is the difference between a scheme and an administrator?
The scheme is the member fund that holds your money and pays claims. The administrator runs the systems and admin on the scheme's behalf. You are a member of the scheme, not the administrator.
Who regulates medical aid in South Africa?
The Council for Medical Schemes (CMS), under the Medical Schemes Act. The CMS registers schemes, sets the rules and handles member complaints free of charge at medicalschemes.co.za.
