
As an FCA-authorised broker that has helped arrange over 800,000 policies, WeCovr understands that navigating the world of private medical insurance (PMI) in the UK can feel complex. Two terms that often cause confusion are 'excess' and 'co-payment', yet understanding them is key to controlling your costs.
When you choose a private health insurance policy, you are entering into a partnership with your insurer. While they agree to cover the bulk of your medical bills for eligible treatment, most policies include cost-sharing features. This is where you, the policyholder, agree to contribute a portion of the cost.
The two most common ways this happens are through an excess and a co-payment.
Think of them as tools that allow you to fine-tune your policy. By agreeing to pay a little more when you claim, you can significantly reduce the amount you pay every month in premiums. This article will break down exactly what each term means, how they work in the real world, and how you can use them to your advantage to find the perfect balance between comprehensive cover and an affordable price.
An excess is one of the simplest and most common features of any insurance policy, whether it's for your car, home, or health.
An excess (sometimes called a deductible) is a fixed, pre-agreed amount of money that you must pay towards a claim before your insurance provider starts to pay.
You choose the excess level when you take out your policy. Common options in the UK PMI market include £0, £100, £250, £500, £1,000, or even higher. The golden rule is straightforward: the higher your excess, the lower your monthly premium will be.
Let's imagine you have a private health cover policy with a £250 excess. You develop knee pain and your GP refers you to a specialist.
The crucial point is that you only pay this excess once per policy year, or once per claim, depending on your policy's terms.
Understanding this difference is one of the most important steps in choosing the right policy.
Let's use a table to see the difference in a real-world scenario.
| Scenario | Policy A: £500 Excess (Per Policy Year) | Policy B: £500 Excess (Per Claim) |
|---|---|---|
| Claim 1 (Jan): Shoulder surgery costing £6,000 | You pay £500. Insurer pays £5,500. | You pay £500. Insurer pays £5,500. |
| Claim 2 (July): Hernia repair costing £3,500 | You pay £0. Your annual excess is met. Insurer pays the full £3,500. | You pay £500 again for this new claim. Insurer pays £3,000. |
| Total Paid by You: | £500 | £1,000 |
As you can see, a 'per policy year' excess offers much better financial predictability and protection if you are unfortunate enough to need treatment for multiple unrelated conditions in the same year.
A co-payment works differently from an excess. Instead of a fixed amount, it's a percentage of the treatment cost that you agree to share with the insurer.
A co-payment is a feature where you agree to pay a certain percentage of the cost of every eligible claim, and the insurer pays the rest.
Common co-payment levels are 10%, 20%, or 25%. This feature is often added to a policy to significantly reduce the premium. It's a way of saying, "I will share the risk with you on every claim."
Let's say you have a policy with a 20% co-payment. You need hip replacement surgery that costs a total of £12,000.
The amount you pay is directly linked to the cost of the treatment. For a smaller claim, your contribution would be less. For example, on a £1,000 claim, your 20% co-payment would only be £200.
Because a percentage of a very large bill could become unaffordable, most of the best PMI providers in the UK apply a cap on the co-payment per claim or per year.
For example, your policy might have a "20% co-payment, capped at £1,000 per claim". In our £12,000 hip replacement example, your 20% share is £2,400. However, because of the cap, you would only have to pay a maximum of £1,000. This provides a crucial safety net against exceptionally high treatment costs.
To make the choice clearer, let's compare the two features side-by-side.
| Feature | Excess | Co-payment |
|---|---|---|
| How It's Calculated | A fixed amount (e.g., £250). | A percentage of the total claim cost (e.g., 20%). |
| Cost Predictability | High. You know the exact maximum you'll pay at the start. | Variable. The amount you pay changes with the cost of treatment. |
| When It Applies | Once per policy year or once per claim. | Applies to every eligible claim (unless capped). |
| Best For... | People who prefer a predictable, one-off cost and want full cover after the excess is paid. | People who are comfortable sharing a portion of every claim cost in return for a lower premium. |
| Example Scenario | A £4,000 claim with a £500 excess. You pay £500, insurer pays £3,500. | A £4,000 claim with a 20% co-payment. You pay £800, insurer pays £3,200. |
| Financial Risk | Your risk is limited to the fixed excess amount. | Your risk is a percentage of the total bill, which is why a cap is so important. |
The primary reason to choose a policy with an excess or co-payment is to make your private medical insurance UK more affordable.
Insurers calculate premiums based on risk. By agreeing to an excess or co-payment, you take on a small portion of the financial risk yourself. This reduces the insurer's potential payout, especially for smaller claims, and they pass these savings directly on to you through lower premiums.
The effect can be dramatic. Let's look at an illustrative example of how changing the excess can affect monthly costs for a typical policy.
Example Table: The Effect of Excess on Monthly Premiums (Note: These are illustrative figures. Your actual quote will depend on your age, location, and chosen cover level.)
| Excess Level (Per Year) | Example Monthly Premium | Potential Annual Saving (vs. £0 Excess) |
|---|---|---|
| £0 | £90 | £0 |
| £250 | £78 | £144 |
| £500 | £65 | £300 |
| £1,000 | £50 | £480 |
The perfect level is a personal choice based on your financial situation. Ask yourself:
This is where speaking to a PMI broker like WeCovr is invaluable. We can provide detailed quotes showing you the exact cost difference between various excess and co-payment options across multiple insurers, helping you find your ideal balance.
Yes, some insurers allow you to combine both for the largest possible premium discount. This is an option for those who want the absolute lowest premium and are comfortable taking on a larger share of the cost at the point of claim.
Here's how it would work: Imagine a policy with a £250 excess and a 10% co-payment. You have a claim for a £5,000 procedure.
Before choosing any policy, it's vital to understand what private medical insurance is designed for, and what it isn't.
UK private medical insurance is designed to provide treatment for acute conditions.
Standard PMI policies do not cover the routine, long-term management of chronic conditions. The NHS remains the primary provider for this type of care in the UK.
A pre-existing condition is any medical issue for which you have experienced symptoms, sought advice, or received treatment before the start date of your PMI policy.
As a general rule, private health cover does not cover pre-existing conditions, at least not initially. Insurers manage this in two main ways:
Excess and co-payments are not the only levers you can pull to make your policy more affordable. Consider these other powerful options:
This is a popular way to reduce premiums by 20-30%. With this option, if the NHS can provide the inpatient treatment you need within six weeks of you being placed on the waiting list, you agree to use the NHS. If the NHS waiting time is longer than six weeks, your private medical insurance kicks in immediately. Given the current pressures on the health service, this is a very effective cost-saving measure.
According to the latest analysis of NHS England data by the British Medical Association, the waiting list for consultant-led elective care stood at over 7.5 million in late 2024. This context makes the six-week wait option a calculated and often beneficial choice for many.
Insurers group hospitals into tiers based on their costs. A policy that gives you access to every hospital in the country, including expensive prime London clinics, will cost the most. You can save money by choosing a policy with a more restricted hospital list that still includes excellent facilities near your home.
Outpatient care includes initial consultations, diagnostic tests, and scans before you are admitted to hospital. While full outpatient cover is available, you can reduce your premium by setting a limit on this benefit (e.g., £500, £1,000, or £1,500 per year). This means you'd be covered for major inpatient procedures but would contribute towards some of the initial diagnostic costs if they exceed your chosen limit.
Many leading insurers now actively reward you for staying healthy. By linking your policy to a fitness tracker, going to the gym, or completing health checks, you can earn rewards like cinema tickets, coffee, and even direct discounts on your renewal premium.
At WeCovr, we support our clients' health journeys by providing complimentary access to our AI-powered nutrition app, CalorieHero, to help you manage your diet and wellness goals. Furthermore, WeCovr clients who purchase PMI or life insurance often qualify for valuable discounts on other policies they might need, such as home or travel insurance, delivering even greater value.
Choosing the right combination of excess, co-payment, hospital lists, and outpatient limits can feel overwhelming. This is where an independent broker adds immense value.
With over 800,000 policies of various types arranged for our clients, our team has the experience to guide you through every step of the process with clarity and confidence.
Ready to find the right private health cover for you? Navigating excesses, co-payments, and provider options can be complex. The experts at WeCovr make it simple.






