Car Insurance Excess in the UK: Compulsory and Voluntary Amounts
Understand UK car insurance compulsory and voluntary excesses, compare premium savings and check the cash needed for different claims.
On this page
- Add the compulsory and voluntary amounts
- Check which excess applies to which claim
- Compare premium savings with the extra exposure
- Test what happens on a smaller loss
- Keep excess recovery separate from immediate affordability
- Check the household cash requirement
- Compare the whole policy at renewal
- Common questions
- Sources and references
Choosing a voluntary excess can change a UK car insurance premium, but the amount you select is only part of the claim contribution. A policy may also have a compulsory excess and different amounts for particular drivers or types of claim. Read the complete schedule before deciding that a cheaper quote is affordable.
This guide explains how to compare those amounts and test the cash consequences. It does not recommend an insurer or determine whether a particular claim is covered. All pound amounts in the worked examples are invented. The policy wording, schedule and circumstances of the claim determine what actually applies.
Add the compulsory and voluntary amounts
The compulsory excess is set by the insurer. The voluntary excess is an additional amount you choose when arranging the policy. MoneyHelper’s explanation of insurance excess describes how the two can combine. Choosing a voluntary excess of zero does not remove a separate compulsory amount.
Suppose the relevant compulsory excess is £250 and the selected voluntary excess is £150. If both apply to an eligible claim, the combined contribution is £400. Do not compare that policy with another quote by looking only at the £150 selection displayed on the comparison screen.
Read the schedule for any additional amount linked to the driver or circumstances. Ask the insurer to confirm the total for the specific section you are comparing. A short written question can prevent a misunderstanding: what would I contribute to an eligible accidental-damage claim involving this named driver?
Check which excess applies to which claim
Motor policies can distinguish accidental damage, theft, fire, glass and other sections. An excess shown beside one section should not automatically be used for all of them. Ask whether using a particular repair route changes the amount or other terms, and record the answer alongside the quotation.
MoneyHelper’s car insurance guide notes that excess amounts can vary with the type of claim and that affordability matters. Its general explanation is a starting point. The policy schedule is where you check the actual figures and any specific exceptions for the cover being offered.
Also check whether the policy section covers the loss at all. An excess is not an entry fee that makes an otherwise excluded event payable. Our guide to car insurance cover terminology explains why broad labels still need to be translated into the actual protection described by the policy.
| Policy detail | What to confirm | Why it changes the comparison |
|---|---|---|
| Compulsory amount | The amount set by the insurer | A low voluntary selection may still leave a large total |
| Voluntary amount | The additional amount you choose | Premium savings increase your possible claim contribution |
| Driver or section terms | Any different or additional applicable amount | The displayed headline may not describe every claim |
| Payment arrangements | Who collects the excess and when | You may need accessible money before any recovery |
Compare premium savings with the extra exposure
Imagine two otherwise equivalent annual quotes. Option A costs £620 and has a £250 compulsory excess with no voluntary excess. Option B costs £550 and has the same compulsory excess plus £300 voluntary excess. B saves £70 in premium but increases the relevant claim contribution from £250 to £550.
With no claim in the modelled year, B costs £70 less. With one eligible claim large enough for the full excess to apply, A’s premium plus excess is £870 and B’s is £1,100. Under that specific scenario, B costs £230 more. These totals exclude other possible costs and later premium changes.
The calculation does not predict whether you will claim. It makes a trade-off visible: £70 of immediate annual saving in exchange for £300 of additional exposure on the described claim. Do not convert this into a personal risk recommendation using an invented claim probability or assuming future premiums remain unchanged.
An invented premium-versus-excess comparison
Option A: £620 premium + £250 applicable excess = £870 with one qualifying claim.
Option B: £550 premium + £550 applicable excess = £1,100 with the same claim.
Trade-off: B saves £70 without a claim, but costs £230 more in this one-claim illustration.
Test what happens on a smaller loss
Suppose an accepted repair cost is £1,400 and the applicable excess is £400. In a simplified calculation with no other adjustments, the insurer’s contribution is £1,000. If the eligible repair cost is only £300, it sits below that excess and produces no payment under this simplified excess calculation.
That does not mean you should ignore an incident or decide the reporting requirement yourself. Check what the policy requires you to notify, even when you do not seek payment for your own damage. Ask the insurer about the distinction between recording an incident and making a claim if the process is unclear.
For an actual loss, the insurer may need to assess eligibility, repair arrangements and settlement terms before confirming the amount. Keep the excess calculation separate from any dispute about the value of the vehicle or the approved repair cost. Combining those questions can make it difficult to see what you are challenging.
Keep excess recovery separate from immediate affordability
After an accident involving another party, you may hope to recover the excess. Do not assume that recovery will be immediate or certain. Ask who will pursue it, what evidence is required and what happens while responsibility or recovery remains unresolved. Keep receipts and correspondence showing any amount you paid.
The Financial Ombudsman Service’s explanation of fault claims and no-claims bonuses notes that insurance records can depend on whether costs are recovered, rather than simply who feels responsible for the accident. It also explains that protecting a no-claims bonus does not guarantee the overall premium will stay the same.
Excess, no-claims discount and renewal price therefore need separate questions. Ask about each rather than treating one answer as a promise about the others. If you disagree with the handling, use the insurer’s complaint process and consult the Ombudsman’s current eligibility and process information where appropriate.
Check the household cash requirement
A higher excess is only workable if you can meet it when required. Use our monthly budget tool to examine accessible funds alongside rent, food and other essential bills. Money already assigned to an annual bill is not automatically spare cash for an insurance excess.
Consider more than one relevant event without assuming it will occur. If the contract applies an excess to each separate claim, one year’s premium saving does not fund every possible contribution. Our guide to reserves with irregular income can help organise the timing question without prescribing a universal savings target.
Three checks before selecting the excess
Coverage: does the relevant section cover the event and driver?
Calculation: what compulsory, voluntary or additional amounts apply together?
Cash: can you meet that amount when required, without relying on uncertain reimbursement?
Compare the whole policy at renewal
The Association of British Insurers’ motor-cost guidance recommends considering cover and circumstances rather than price alone. Its industry perspective does not replace independent comparison. Keep usage, drivers, mileage information and requested cover consistent when obtaining alternative quotes.
- Find the compulsory and voluntary excesses in the current quotation schedule.
- Check section-specific and driver-specific differences with the insurer.
- Compare the full annual premium and an explicitly defined claim scenario.
- Confirm payment timing and the process for any possible recovery.
- Save the accepted schedule and review the figures again at renewal.
Do not assume last year’s selected amount or a comparison site’s default remains suitable. Revisit the decision when the vehicle, drivers or available savings change. A clear record of the premium saving and total applicable excess makes the choice easier to review than a vague belief that the policy was the cheapest available.
Common questions
Do I pay both compulsory and voluntary excess?
Where both apply to the relevant claim, they are added together. Check the schedule and section wording for the actual amounts and any exceptions. A comparison screen may emphasise the voluntary selection, so ask the insurer to confirm the total contribution for the driver and claim type you are considering.
Does zero voluntary excess mean no excess at all?
No. A compulsory excess may still apply, together with any relevant section or driver-specific terms. Zero voluntary excess only means you have not selected that additional contribution. Read the whole schedule rather than assuming the number entered in one quotation field represents the entire amount payable on a claim.
Will a higher voluntary excess always reduce my premium?
It may reduce the quoted premium, but the actual difference depends on the insurer and quotation. Compare the figures offered for otherwise equivalent cover. A small premium reduction may leave you with substantially more to contribute to a claim, so assess the saving and accessible cash together.
Is the excess the same for glass and accidental damage?
Not necessarily. Policies can use different amounts or arrangements for different sections and repair routes. Check the relevant schedule and ask about any conditions before assuming the general accidental-damage excess applies. Keep a record of the insurer’s explanation with the policy documents for use if an incident occurs.
What happens if a repair costs less than the excess?
In a simple covered-loss calculation, a cost below the applicable excess would not produce an insurer payment. That does not remove any obligation to report an incident under the policy. Confirm the reporting and claim process with the insurer rather than treating a small repair bill as automatic permission not to notify it.
Can I recover my excess after a non-fault accident?
Recovery may be possible, but the process, timing and outcome depend on the circumstances. Ask your insurer or relevant representative who will pursue it and what records are needed. Plan to meet any immediate payment requirement without assuming that the other party’s insurer will reimburse you promptly.
Does protected no-claims discount remove the excess?
No automatic connection should be assumed. No-claims discount protection, the excess and the overall premium are different parts of the policy. Read the terms for each. Protection of a discount does not by itself guarantee that your renewal premium will remain unchanged or that your claim contribution disappears.
Should I choose the largest excess I can select?
Only after comparing the actual premium saving with the total applicable contribution and your ability to pay it. The highest available selection is not automatically the best fit. Model a relevant claim scenario, keep other policy features consistent and avoid relying on savings that are already committed to essential expenses.
Can the excess apply more than once in a year?
It can, depending on the policy and the separate claims involved. Check how the contract applies the excess rather than assuming it is one annual payment. A premium saving should be assessed alongside the possibility of multiple contributions, without pretending to know how many claims you personally will make.
What should I check when renewing?
Review the compulsory and voluntary amounts, section differences, named drivers and complete premium. Compare them with your current needs and accessible savings. Keep the accepted schedule, because a remembered amount from last year or a comparison-site default may not describe the terms applying to the renewed policy.
