Omnium excess: do you pay it when the other driver is at fault?

Yes, your omnium excess applies even when the other driver is liable, because it belongs to your contract and not to the accident. It is not inevitable, though: if the liable party is identified and insured, you can in principle go through their liability insurer with no excess, or claim yours back afterwards.

Why does the excess apply if I am not at fault?

The omnium is a contract between you and your insurer. It pays for your car whatever the cause of the damage, and it deducts the amount written in your policy schedule. The other driver's liability changes nothing there.

The Ethias general conditions put it bluntly: the policyholder "pays the insurer the amount of the excesses applicable under the contract" (article 49), and that deduction "must be made before any recourse is applied". Recourse against the liable party therefore comes after the excess, not instead of it.

Two routes, then.

What are the two routes when the other driver is liable?

First route: the other driver's liability insurer. Article 150 of the Act of 4 April 2014 gives the injured party a direct right against the liable party's insurer. Your omnium excess does not come into play, since your omnium is not called upon. The price is the timetable: liability must be accepted, the expert must visit, and you advance the bill while you wait.

Second route: your own omnium. You are paid under your contract, excess deducted, and your insurer is subrogated to your rights against the liable party (article 34 of the same Ethias conditions). Your excess remains a claim of yours. Wikifin, the educational portal of the FSMA, the Belgian financial regulator, puts it this way: if a third party is found liable, you can still ask them to reimburse your excess, through your legal protection cover.

The first route costs no excess but demands patience, because your payout depends on a file that is not yours, on the other company's expert and on its decision about how fault is shared. The second is fast, but makes you advance money.

Which route suits which situation?

At Belfius Direct, for example, the formula provides that the insurer takes over the compensation if the liable third party is insolvent, up to 6,250 euros. That kind of cover is not the norm: it is in your contract or it is not.

How do I recover my excess, and from what amount?

Take a figure. Your car has suffered 3,200 euros of damage in a collision where the other driver is clearly liable. Your omnium excess is 500 euros. The omnium pays you 2,700 euros, you advance 500 euros, then you claim those 500 euros from the liable party.

This is where legal protection matters. Those policies carry an intervention threshold: 148.74 euros at Belfius Direct, and at Argenta damage below 125 euros is not insured. An excess of 500 euros clears those thresholds, an excess of 100 euros would not always. Read yours before counting on reimbursement. Our file on legal protection details the ceilings, and the one on subrogation explains why your insurer can claim in your name what it has paid you.

What excesses do Belgian contracts really carry?

The figures below were read in the insurers' public documents in October 2026. They illustrate mechanisms; they do not replace your own excess line.

Two useful readings. A low excess is paid for in premium, as our article on the English excess explains. And the list of excess-free perils is sometimes worth more than the headline amount: a 750-euro contract that applies none to theft and animals costs less in use than a 500-euro contract that applies one everywhere.

Is a high excess risky if I am rarely at fault?

Less than you might think, provided you can advance the money. A claim where the other driver is liable should not cost you the excess for good, since you claim it back. The real risk is the case where you recover nothing: shared fault, unknown or insolvent party, insufficient proof.

If you drive mostly in town, park on the street and suffer chiefly impacts with no identified culprit, a high excess will cost you more often than it would a driver who never meets an unknown third party. Your claims profile matters more than your fault rate.

Does a not-at-fault accident raise my bonus-malus?

In principle no. Your level on the Belgian 0-to-22 scale moves with claims where you are liable, not with those where the other driver is. The nuance lies in shared and disputed fault: until liability is established, your insurer may provisionally classify you as at fault. Our guide to the bonus-malus explains the mechanism and how to have the level corrected.

Five lines to read in your policy before the next scrape

I recommend no formula without reading what it excludes, and this is where surprises hide. In the five public documents read for this article (DVV, Ethias, KBC, Belfius Direct, Argenta), I found no clause that automatically waives or reimburses the excess when the other driver is liable. That silence is lifted by asking your insurer or broker in writing.

• The excess peril by peril: material damage, theft, glass and animals do not always follow the same rule.
• The fate of the excess if a third party is liable: waived, reimbursed, advanced by you, or left to your own recourse.
• Legal protection: included or optional, with what intervention threshold and what ceiling.
• The approved repairer: some contracts reduce or waive the excess if you use one (Ethias mentions a reduction or abrogation of the contractual excess), others do not provide for it.
• Total loss and young or occasional drivers: the excess may disappear in the first case, double in the second.

These lines are in your policy schedule, not in the general conditions. Our article on the policy schedule shows where to find them in ten minutes.

Verdict: the other insurer to save money, your omnium for speed

When the other driver is clearly liable and insured, their liability insurer avoids the excess. When the car must be repaired quickly or liability is disputed, the omnium is the right tool, provided you know the excess is an advance and not a loss. Start choosing a formula with our ranking of the best car insurers, and the quiz frames your need in two minutes before the comparison. To weigh omnium against mini-omnium, see mini-omnium or full omnium. If you need to complain, the Insurance Ombudsman is free.

This site informs and compares. It is not an insurance intermediary and gives no individual recommendation. Only your policy schedule is binding.