Car insurance excess is the amount of money you agree to pay towards any insurance claim before your insurer covers the rest. Understanding car insurance excess explained UK policies is essential — getting it wrong can leave you hundreds of pounds out of pocket when you need to claim.
This guide explains exactly how excess works, the difference between compulsory and voluntary excess, how much to choose, and how to avoid the most costly mistakes UK drivers make.
What Is Car Insurance Excess?
Car insurance excess is the fixed amount you contribute to the cost of a claim. Your insurer pays everything above that amount — up to your policy limit.
For example — if your total claim is £1,500 and your excess is £400, your insurer pays £1,100. You pay £400. The excess comes out of the claim settlement, not as a separate upfront payment in most cases.
Every UK car insurance policy has an excess. It is not optional — it is a core part of how car insurance works. According to the Association of British Insurers (ABI), the average car insurance excess in the UK sits between £100 and £500 depending on the driver, vehicle, and insurer. You can check current ABI guidance at abi.org.uk.
Car Insurance Excess Explained UK: Compulsory vs Voluntary
There are two types of excess on every UK car insurance policy. Understanding both is critical before you buy.
Compulsory Excess
Compulsory excess is set by your insurer — you cannot change it. It is based on risk factors including your age, driving experience, and vehicle type.
Young drivers and new drivers typically face higher compulsory excess amounts. A 17-year-old driver may face compulsory excess of £500–£1,000 on some policies. An experienced driver over 30 may pay as little as £100–£200.
You have no control over compulsory excess. It is fixed at the point of purchase and stays the same throughout your policy term.
Voluntary Excess
Voluntary excess is the additional amount you choose to pay on top of your compulsory excess. You set this yourself when buying your policy.
Choosing a higher voluntary excess lowers your monthly or annual premium. Choosing a lower voluntary excess raises your premium but reduces what you pay when you claim.
| Voluntary Excess | Effect on Premium | Effect on Claim Cost |
|---|---|---|
| £0 | Highest premium | Pay compulsory only |
| £100 | High premium | Pay compulsory + £100 |
| £250 | Medium premium | Pay compulsory + £250 |
| £500 | Lower premium | Pay compulsory + £500 |
| £1,000 | Lowest premium | Pay compulsory + £1,000 |
Total Excess
Your total excess is always compulsory excess + voluntary excess combined.
If your compulsory excess is £200 and your voluntary excess is £300 — your total excess is £500. This is what you pay on every claim.
How Does Car Insurance Excess Work? Real Examples
Here are three real-world examples of car insurance excess explained UK style — so you can see exactly how the numbers work.
Example 1 — Minor accident, low claim
- Total repair cost: £350
- Compulsory excess: £150
- Voluntary excess: £200
- Total excess: £350
- Insurer pays: £0
In this case your total excess equals the repair cost. Your insurer pays nothing. You pay the full £350 yourself. This is why many UK drivers do not claim for minor damage — the excess wipes out any payout.
Example 2 — Medium accident
- Total repair cost: £1,200
- Compulsory excess: £150
- Voluntary excess: £250
- Total excess: £400
- Insurer pays: £800
Here the claim is worth making. You pay £400, your insurer pays £800.
Example 3 — Major accident
- Total repair cost: £5,000
- Compulsory excess: £150
- Voluntary excess: £500
- Total excess: £650
- Insurer pays: £4,350
For large claims, excess makes very little difference relative to the total payout. This is where UK car insurance provides its greatest value.
How Much Excess Should I Choose?
Choosing the right excess is one of the most important financial decisions when buying car insurance in the UK. The Financial Conduct Authority (FCA) recommends understanding your policy terms fully before purchasing — full guidance is available at fca.org.uk.
The golden rule is simple — never set your total excess higher than you can comfortably afford to pay in an emergency.
If your total excess is £800 but you only have £200 in savings — you cannot cover a claim even if your car is written off. That is the most costly mistake UK drivers make with excess.
Use this framework to decide:
| Your Situation | Recommended Voluntary Excess |
|---|---|
| New driver, limited savings | £0–£100 |
| Experienced driver, some savings | £150–£250 |
| Experienced driver, good savings | £300–£500 |
| Low mileage, clean driving record | £500–£1,000 |
| Company car, employer covers excess | £500–£1,000 |
Always calculate your premium saving vs excess increase. If raising voluntary excess from £200 to £500 saves you £40 per year — it takes 7.5 years to break even if you make one claim. In that scenario, lower excess is the better financial choice.
Does Excess Apply to Every Claim?
No — excess does not apply to every type of claim. This surprises many UK drivers.
Excess DOES apply to:
- Accident damage claims (fault and non-fault in some cases)
- Fire and theft claims
- Windscreen replacement (usually a separate lower windscreen excess)
- Vandalism claims
- Flood damage claims
Excess does NOT apply to:
- Third-party claims where the other driver is fully at fault and admits liability
- Claims paid directly by the third party’s insurer
- Some legal expenses add-ons
Important note on non-fault accidents. Even if an accident is not your fault, most UK insurers require you to pay your excess upfront when you claim. You then recover it from the at-fault driver’s insurer — but this process can take weeks or months. For more on your rights in non-fault accidents visit GOV.UK.
Car Insurance Excess vs No-Claims Discount: What Is the Difference?
These are two separate things that UK drivers often confuse.
| Excess | No-Claims Discount | |
|---|---|---|
| What it is | Amount you pay per claim | Discount earned for claim-free years |
| When it applies | Every time you claim | Builds up over years without claims |
| Effect of claiming | You pay the excess | You lose some or all of your discount |
| How to protect it | Raise voluntary excess | Add NCD protection to your policy |
| Typical value | £100–£1,000 | Up to 75% premium reduction after 5 years |
Both excess and no-claims discount affect the true cost of claiming. Before making any claim always calculate whether the payout exceeds both your excess AND the cost of losing your no-claims discount over the next 1–3 years.
How to Lower Your Car Insurance Excess
If your current excess feels too high, here are the most effective ways to reduce it:
1 — Reduce your voluntary excess at renewal. When your policy renews, simply choose a lower voluntary excess amount. Your premium will increase slightly but your financial exposure on claims reduces significantly.
2 — Shop around using comparison sites. Different insurers set different compulsory excess levels. Comparing on MoneySupermarket, Go Compare, and Compare the Market often finds policies with lower compulsory excess at similar premiums.
3 — Add excess protection insurance. Excess protection is a separate low-cost add-on — typically £25–£60 per year — that reimburses your excess after any claim. It effectively reduces your out-of-pocket cost to zero on valid claims.
4 — Improve your risk profile. Completing an advanced driving course such as Pass Plus or IAM RoadSmart can reduce both your premium and compulsory excess on some policies.
5 — Choose a lower-risk vehicle. Cars in lower insurance groups attract lower compulsory excess. Switching from a high-performance vehicle to a standard family car can dramatically reduce both your premium and excess level.
FAQ
Q: What is car insurance excess UK? Car insurance excess explained UK — it is the amount you contribute towards any insurance claim before your insurer pays the remainder. Every UK car insurance policy has a compulsory excess set by the insurer plus an optional voluntary excess you choose yourself. Your total excess is the combined amount of both.
Q: What happens if my car repair costs less than my excess? If the repair cost is less than or equal to your total excess, your insurer pays nothing. You cover the full repair cost yourself. In this situation it is usually better not to make a claim at all — paying out of pocket avoids any risk to your no-claims discount and keeps your claims record clean.
Q: Is a higher or lower excess better for UK car insurance? Neither is universally better — it depends on your financial situation. A higher excess lowers your annual premium but increases what you pay when you claim. A lower excess raises your premium but reduces claim costs. The right answer depends on your savings, driving history, and how often you are likely to claim.
Q: Do I pay excess if the accident is not my fault? In most cases yes — you pay your excess upfront when you claim, even in a non-fault accident. Your insurer then recovers this from the at-fault driver’s insurer. The process can take several weeks. Some policies include uninsured driver promise or no-fault excess waiver — check your policy documents carefully.
Q: Can I change my excess during my policy? You can usually change your voluntary excess at renewal. Changing it mid-policy is less common and may incur an admin fee. Your compulsory excess cannot be changed — it is fixed by your insurer for the policy term. Always check with your insurer before making mid-policy changes.
Summary
Car insurance excess explained UK — it is the amount you pay towards any claim, made up of compulsory excess set by your insurer and voluntary excess you choose yourself. Never set your total excess higher than you can comfortably afford to pay. Always calculate whether a claim is worth making by comparing the payout against your total excess and the impact on your no-claims discount.
This article is for educational purposes only. Always consult a licensed insurance professional before making coverage decisions.









