Car Insurance Excess: 2 Types And How To Choose

ST
Written by
Integrated MA, Certified Relationship Coach

Car insurance excess represents the initial amount policyholders must pay out-of-pocket when filing a claim, influencing both premium costs and claim decisions. This guide breaks down the two main types—compulsory and voluntary excess—offering insights into how they function, their effects on your policy, and strategies for smart selection.

Defining the Core Components of Excess

Excess acts as a financial threshold in car insurance policies, deterring minor claims while sharing repair costs between you and the insurer. It combines two elements: one fixed by the provider and another you select.

The total excess applied to any claim is the sum of these components, paid upfront or deducted from settlements. For instance, if repairs cost £1,500 with a £350 total excess, the insurer covers £1,150 after your contribution.

Compulsory Excess: The Insurer’s Fixed Requirement

Compulsory excess is the minimum amount set by your insurer based on perceived risk factors, such as age, driving record, vehicle type, and location. Younger drivers or those with high-performance cars often face higher figures, like £500 for a 20-year-old new to the road.

This non-negotiable portion ensures insurers mitigate baseline risks. High-risk profiles—think urban dwellers or owners of powerful engines—trigger elevated compulsory excesses to offset potential claim frequency and severity.

  • Age factor: Drivers under 25 typically see £300–£500.
  • Vehicle influence: Sports cars or large engines push it to £400+.
  • Claims history: Past incidents can increase it by 50–100%.
  • Postcode risks: High-theft areas add £100–£200.

Always check your policy schedule for the exact compulsory amount, as it varies by provider and profile.

Voluntary Excess: Your Choice for Premium Control

Voluntary excess is an optional addition you agree to pay beyond the compulsory amount, typically ranging from £0 to £500. Selecting a higher figure signals confidence in avoiding small claims, prompting insurers to lower your annual premium—often by 10–20% for every £100 increase.

This mechanism works because it reduces administrative burdens and fraudulent low-value claims for the insurer. However, it demands financial readiness; a £400 voluntary excess means £600+ total on minor accidents if paired with high compulsory.

Voluntary Excess LevelTypical Premium SavingsBest For
£0–£100Minimal (0–5%)Families or cautious drivers
£200–£300Moderate (10–15%)Average commuters
£400+Significant (20%+)Low-mileage, experienced drivers

Higher voluntary levels suit those with savings buffers and clean records, but avoid extremes if repairs often exceed your comfort zone.

Key Distinctions Between Compulsory and Voluntary Excess

Grasping the differences helps tailor your policy effectively. Compulsory excess is insurer-driven and risk-assessed, while voluntary is your strategic tool for cost management.

AspectCompulsory ExcessVoluntary Excess
DeterminationInsurer sets based on profilePolicyholder selects
FlexibilityNon-negotiableAdjustable at quote/renewal
Premium EffectIndirect via risk ratingDirect: higher = lower premium
Claim ImpactAlways appliedAdded if chosen

These contrasts highlight how compulsory protects the insurer’s interests, whereas voluntary empowers you to customize affordability.

When and How Excess Applies to Claims

Excess triggers on at-fault accidents, uninsured third-party damage, or unidentifiable culprits. Not applicable for fire, theft, or non-fault claims where another party’s insurer pays.

Payment occurs upfront to repairers or post-settlement via deduction. For a £2,000 write-off with £400 excess, you’d receive £1,600. Multiple excesses (e.g., parking damage) may stack per incident.

  • At-fault collision: Full excess.
  • Hit-and-run: Full excess.
  • Theft: Often no excess.
  • Windshield crack: Possible reduced excess.

Strategies for Selecting Optimal Excess Levels

Balance premium savings against claim affordability. Low-mileage drivers with emergency funds benefit from £300+ voluntary excess, slashing premiums significantly.

Compare quotes adjusting voluntary levels—tools on comparison sites show real-time impacts. Families might cap at £150 to avoid cash flow issues on frequent minor fixes.

Reassess annually: improved no-claims bonus could lower compulsory excess, freeing room for voluntary tweaks.

Excess Insurance: Covering Your Contribution

Specialist policies reimburse excess payments post-claim, capping at £250–£1,000 yearly. Costs £20–£50 annually, covering car, home, and more in ‘lifestyle’ variants.

Ideal for high-excess policies, but check exclusions like multiple claims. Prove main claim success first; not a premium substitute but a safety net.

Real-World Scenarios: Excess in Action

New Driver Dilemma

A 21-year-old with £450 compulsory excess adds £200 voluntary to drop premiums from £1,800 to £1,400 yearly. A £800 bumper repair requires £650 outlay—affordable if budgeted.

Family Saloon Owner

Mid-40s driver opts £100 voluntary on £250 compulsory (£350 total). Premium £600; minor dent claim nets £450 insurer payout after £350 payment.

Classic Car Enthusiast

£600 compulsory due to vehicle age; £0 voluntary keeps premiums viable at £900 despite risks.

These illustrate personalized choices based on lifestyle and finances.

Frequently Asked Questions

What happens if I can’t pay the excess?

Claims halt until paid; unpaid excess may void coverage or hike future premiums.

Does excess apply to all claim types?

No—waived for theft/fire or third-party faults.

Can I change voluntary excess mid-policy?

Usually at renewal; mid-term changes may incur fees.

Is excess tax-deductible?

No, it’s a policy condition, not a business expense for most.

How does no-claims discount interact with excess?

NCD reduces premiums independently; excess stays profile-based.

Regular policy reviews, safe driving, and excess optimization minimize costs. High voluntary excess rewards discipline but demands preparedness—pair with robust savings.

Shop via aggregators yearly, factoring excess into totals. Clean records gradually lower compulsory excess, enhancing flexibility.

References

  1. Compulsory Excess and Voluntary Excess Explained Clearly — Proova. 2023. https://www.proova.com/compulsory-excess-and-voluntary-excess-explained-clearly
  2. What is car insurance voluntary and compulsory excess? — MoneySuperMarket. 2024-01-15. https://www.moneysupermarket.com/car-insurance/compulsory-vs-voluntary-excess/
  3. What Is Car Insurance Excess And What Does It Mean? — ChilliDrive. 2023. https://www.chillidrive.com/knowledge-hub/what-is-car-insurance-excess-and-what-does-it-mean
  4. Compulsory and Voluntary Excess In Motor Insurance — PolicyBazaar. 2024. https://www.policybazaar.com/motor-insurance/car-insurance/articles/compulsory-and-voluntary-excess-in-motor-insurance/
  5. What is the difference between a compulsory and a voluntary excess — GoSkippy. 2023. https://goskippy.com/faq/what-is-the-difference-between-a-compulsory-and-a-voluntary-excess-and-how-do-i-find-out-how-much-excess-is/
  6. Car insurance excess meaning explained — GoCompare. 2025-03-10. https://www.gocompare.com/car-insurance/guide/excess-explained/
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