Health Insurance Excess Explained | Private Health Insurance UK
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Updated for 2026 7 minute read Written by CMHI Editorial Team Rated Excellent on Trustpilot
Health Insurance Explained

What Is An Excess On Private Health Insurance?

Confused by health insurance excesses? You are not alone.

One of the biggest decisions when comparing private health insurance is choosing the right excess. It can affect both your monthly premium and what you might pay if you ever need to claim.

This guide explains how private health insurance excesses work, when a higher excess could save money and the key details to check before choosing a policy.

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In This Guide

✓ What a health insurance excess is
✓ How excess affects price
✓ Annual excess vs per claim excess
✓ When a higher excess may make sense
✓ Common mistakes to avoid
✓ Questions to ask before choosing cover
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At A Glance

What is a policy excess? The amount you pay towards an eligible claim.
Why does it matter? It can affect your monthly premium and claim costs.
How is it applied? Some policies apply it annually. Others may apply it differently.
Key point A higher excess can sometimes make financial sense, but only if you understand the terms.

What Does A Health Insurance Excess Mean?

An excess is the part of a claim you agree to pay yourself.

For example, if you have a £250 excess and make an eligible claim, you may pay the first £250. The insurer then pays the remaining eligible treatment costs, subject to the policy terms.

This can help reduce your monthly premium because you are taking on part of the risk yourself.

Private health insurance excess explained guide showing a couple reviewing their policy at home

Why Do Health Insurance Excesses Exist?

Excesses give customers a way to adjust the balance between monthly cost and potential claim cost.

From an insurer’s point of view, an excess can reduce smaller claims and lower the amount the insurer may need to pay. From a customer’s point of view, it can create flexibility and sometimes reduce the monthly premium.

The important point is that an excess should not be viewed in isolation. It needs to be compared against the premium saving, the level of cover, the hospital list and how the excess applies.

CMHI Expert Insight: A Higher Excess Is Not Always More Risky

Many people automatically choose the lowest possible excess because it feels safer. But sometimes, a higher excess can work out better financially.

For example, if choosing a £200 annual excess reduces the premium by £300 per year, the customer has saved £300 before any claim is made.

Premium saving £300
Annual excess £200
Better off after one annual claim £100

If they make one eligible claim and the excess applies once per policy year, they pay the £200 excess but are still £100 better off overall for that year.

If no claim is made, they keep the full £300 saving.

The key detail is how the excess applies. Some policies apply the excess once per policy year, while others may apply it per claim, per condition or in another way.

How Does Excess Affect The Price?

In many cases, increasing your excess can reduce the monthly premium. The insurer may charge less because you are agreeing to pay more towards a claim.

Excess Level Typical Effect On Premium Things To Consider
£0 excess Usually higher You may pay more each month, but less if you claim.
£100 to £250 excess Often balanced Can reduce the premium without creating a very large upfront claim cost.
£500 or more Usually lower May suit people who want to reduce monthly cost and are comfortable with a higher contribution if they claim.

When A Higher Excess May Be Worth Considering

It may be worth considering if:

  • The yearly premium saving is greater than the excess increase.
  • The excess applies once per policy year.
  • You mainly want protection against larger medical bills.
  • You are comfortable paying the excess if you claim.
  • You want to keep important benefits rather than removing cover to reduce cost.

A lower excess may be more suitable if:

  • You prefer lower upfront costs when claiming.
  • You are buying cover for a family.
  • You would find a larger excess difficult to pay unexpectedly.
  • You want more certainty over potential claim costs.

The Detail That Really Matters: How The Excess Applies

This is where people can easily get caught out.

A £250 excess that applies once per policy year is very different from a £250 excess that could apply to each separate claim or condition.

Important Question To Ask

Does the excess apply once per policy year, per claim, per condition or in another way?

This detail can change whether a higher excess is a sensible cost-saving option or whether it creates more potential cost than expected.

Common Misunderstandings About Health Insurance Excess

“A Higher Excess Always Means More Risk”

Not always. If the annual saving is larger than the excess and the excess applies once per year, the numbers may still work in the customer’s favour.

“The Cheapest Monthly Premium Is Always Best”

A lower premium can look attractive, but it needs to be compared against the excess, hospital list, out-patient cover, cancer cover and underwriting terms.

“All Insurers Apply Excess In The Same Way”

They do not. This is why the policy wording matters.

“Reducing Benefits Is The Only Way To Save Money”

Sometimes changing the excess may reduce cost while keeping stronger benefits in place. This depends on the insurer and policy.

Questions To Ask Before Choosing An Excess

  • How much does each excess option reduce the monthly premium?
  • Does the saving outweigh the extra excess risk?
  • Is the excess applied annually, per claim or per condition?
  • Could the excess apply more than once in a year?
  • Would the excess still feel affordable if treatment was needed?
  • Are any important benefits being removed just to reduce the premium?
  • Does the policy still include the hospitals, benefits and cover levels that matter?

How CMHI Helps Make This Simpler

CMHI helps people compare private health insurance options from leading UK insurers. We make the process clearer by helping you understand the parts of a policy that affect value, not just the headline monthly price.

That includes excess options, hospital access, out-patient limits, cancer cover, underwriting and renewal considerations.

We do not believe private health insurance should feel confusing. The aim is to help you compare your options with more confidence and access specialist broker support where appropriate.

Health Insurance Excess FAQs

Is a higher health insurance excess always better?

No. A higher excess may reduce the monthly premium, but it depends on the size of the saving and how the excess is applied.

Is health insurance excess paid once a year?

Some policies apply the excess once per policy year, but others may apply it differently. Always check the policy wording.

Can I have private health insurance with no excess?

Some insurers offer a £0 excess option, although the monthly premium is usually higher.

Can changing my excess reduce my premium?

In many cases, yes. Increasing the excess can reduce the premium, but the saving should be compared against the extra amount you may pay if you claim.

Does excess apply to every treatment?

Not always. It depends on the insurer, claim type and policy wording.

Can families choose a different excess?

Family policies may have different excess options depending on the insurer. It is worth checking whether the excess applies per person, per claim or per policy year.

Should I choose the cheapest health insurance policy?

Not necessarily. Price matters, but so do hospital access, out-patient cover, cancer cover, underwriting and how the excess works.

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Written by: Compare My Health Insurance Editorial Team

Last reviewed: July 2026

Next scheduled review: January 2027

Editorial note: This guide is designed to explain private health insurance in plain English. It does not provide regulated financial advice. Where appropriate, CMHI may introduce you to specialist FCA-authorised broker partners who can provide personalised advice based on your circumstances.

Sources: FCA, ABI, Competition and Markets Authority, NHS England and UK health insurer policy documentation.

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