Understanding medical aid limits, sub-limits, and exclusions

Terms such as “limits,” “sub-limits,” and “exclusions” arise in the context of medical aid plans and can make an already daunting decision much more confusing. Understanding medical aid is about more than just monthly contributions or benefits. It’s also about what is not covered and how much protection is left when the time really matters.

This guide will explain what medical aid limits and sub-limits are, explain some common medical aid exclusions, and assist you in making more informed decisions using tools such like the free MedicalAid.co.za comparison platform.

What are medical aid limits?

Medical aid limits represent the maximum amount that your particular scheme will pay for a range of healthcare services each year. More commonly, this is referred to as the overall annual limit, which is the total amount of benefits you can claim in a year.

For example, if your medical aid plan has an annual limit of R500,000, and the total amount of your claims adds up to this amount, any additional costs will need to be paid by you until the limit resets the next year. While some comprehensive plans may not apply overall limits, many capitation or entry-level plans do.

Understanding these medical plan caps is critical to avoiding nasty surprises, especially during medical emergencies, planned medical procedures or when managing a chronic illness.

Decoding sub-limits in medical aid

Sub-limits are more specific than limits: they restrict how much your plan will pay for very specific procedures or treatments, regardless of where you are still within your overall annual limit.

For instance a medical scheme may include sub-limits similar to these:

  • MRI and CT scans may have a sublimit of up to R10,000 per year.
  • Hearing aids or prosthetics might be capped at around R5,000.
  • Certain dental procedures may only be covered up to a fixed amount, regardless of the total cost.

These medical aid sub-limits can catch you off guard. You might assume you’re fully covered, only to find you owe thousands for a treatment that exceeded a sublimit you were not aware of.

Common exclusions in medical aid plans

Exclusions are treatments or procedures your plan won’t cover at all – no matter your overall limit or benefit tier. Typical medical aid exclusions include:

  • Cosmetic surgery (unless medically necessary)
  • Experimental or unproven treatments
  • Infertility treatments
  • Certain over-the-counter medications
  • Alternative therapies not recognised by the Scheme

Understanding medical aid exclusions is just as important as knowing your benefits. A treatment that isn’t covered means you pay 100% out of pocket.

Impact of limits and sub-limits on your cover

Limits and sub-limits don’t just restrict access, they also create out-of-pocket costs. If a procedure costs more than your sublimit allows, you must pay the difference. In some cases, this could mean tens of thousands of rands.

This is where gap cover becomes essential. Gap cover is a separate policy designed to cover the shortfall between what your medical aid pays and what private specialists actually charge. It doesn’t replace your medical aid, it protects you from the financial “gaps” that limits and exclusions can create.

Some plans also require co-payments, a set amount you must contribute towards a procedure. This often applies to high-cost treatments or when using providers outside your scheme’s designated service providers (DSPs).

How to compare medical aid plans effectively

Making sense of all this is no easy task, but the right tools make all the difference. If you’re doing a medical aid comparison in South Africa, be sure to:

  • Check both annual limits and individual sub-limits
  • Review the list of medical aid exclusions carefully
  • Understand co-payment requirements
  • Compare hospital plans vs comprehensive plans side by side
  • Assess whether you’ll need gap cover for peace of mind

The free comparison tool at MedicalAid.co.za helps you evaluate options clearly, whether you’re already on a plan or looking for a new one. Not on a medical aid yet? You can get a quote here.

Conclusion

Understanding medical aid is about more than just your monthly premium. It’s about knowing the fine print, medical aid limits, sub-limits, and exclusions, so you can protect yourself and your family from unexpected costs. Use smart tools, read the details, and when in doubt, speak to an advisor who can help you navigate the complexity.

 

 

When should you compare your medical aid?

In a country like South Africa, where access to quality healthcare can be the difference between security and stress, medical aid is more than a nice-to-have, it’s a necessity. But here’s the thing: just because you have medical aid doesn’t mean you have the right one.

Too often, people sign up for a plan and stick with it year after year, even when their lives, and their health needs, have completely changed. The reality? The best time to compare medical aid plans in South Africa might be right now.

Whether you’re considering a switch between major players like Bonitas and Discovery or simply trying to compare medical aid prices that fit your budget, timing is everything.

So, when should you compare your medical aid? Let’s dive in.

  1. Annual review time: Your once-a-year opportunity

Think of it as the Black Friday of medical aid.

Most South African medical schemes open their review windows toward the end of the year. This is your golden opportunity to assess your current plan, benefits, exclusions, premiums, and decide if it’s still working for you.

This is also when most updates to plan structures happen. Waiting until January might mean locking yourself into another year of mismatched cover or unnecessary expenses.

Tip: Use a smart online comparison tool like MedicalAid.co.za to compare medical aid plans for 2025 quickly and easily.

  1. Life changes that impact your medical needs

Life doesn’t stand still, and neither should your cover.

Major life milestones often change what you need from a medical aid plan. Here are a few examples:

  • Getting married or divorced
  • Having a baby
  • Entering a new age bracket
  • Developing a chronic condition

Each of these shifts could mean your current plan no longer fits, or that you’re overpaying for benefits you don’t need.

When you compare Bonitas and Discovery medical aid or explore other options during these moments, you’re not just reacting, you’re planning smartly for what’s ahead.

  1. Financial changes: Income in, budget out?

Whether it’s a raise, a retrenchment, or just a tighter monthly budget, financial shifts often call for a fresh look at your healthcare cover.

Medical aid isn’t cheap. But that doesn’t mean you have to sacrifice quality care for affordability. It just means you should compare cheap medical aid prices in South Africa to find the right balance. But also remember, cheap is not always better and you what you save on premiums could end up costing more on day-to-day out of pocket and co-payments. So, comparing before changing plans is a good idea.

Think of it as financial self-care.

  1. When your benefits just aren’t cutting it

Here’s a red flag checklist:

  • You’re paying out-of-pocket more than expected
  • You’ve hit your limits halfway through the year
  • You need cover for specific treatments, and don’t have it

If you’re nodding along, your medical aid plan may be doing the bare minimum for maximum cost. That’s when it’s time to compare medical aid hospital plans in South Africa and find better options for the same monthly contribution.

Because peace of mind should not come with small print stress.

  1. If you haven’t compared in over a year

Let’s be honest, how often do you really read those benefit updates your scheme emails each year?

Medical aid schemes update their premiums, networks, and benefit structures every year. If you haven’t checked in 12 months or more, your plan might no longer offer the same value it once did. Or it’s offering new value that you don’t need, but inevitably are paying for.

A quick comparison could reveal better benefits at the same, or lower, price.

Bottom line: Your health (and wallet) deserves better

The key takeaway? You don’t have to wait for a crisis, or the end of the year, to take control of your cover. Whether it’s a lifestyle change, a financial shakeup, or just a gut feeling that your benefits aren’t up to scratch, knowing when to compare medical aid plans in South Africa is one of the smartest preventative care moves you can make.