Pay-per-kilometre car insurance in Belgium: who is it really worth it for?

Pay-per-kilometre car insurance becomes worth it below roughly 10,000 to 12,000 km a year, with a saving that can run from 15 to 30% versus a standard formula. It is a good deal for one specific profile — the low-mileage driver — and a poor calculation for everyone else. Since the average Belgian car covers around 16,000 km a year according to Car-Pass, most drivers gain nothing from it: the question is therefore not "is it cheaper?" but "do I drive little enough for it to be cheaper?"

How does pay-per-kilometre car insurance work in Belgium?

The premium is made up of a fixed part and a variable part linked to kilometres. The fixed part pays for the base cover — liability, and omnium if you take it — exactly as in a standard contract. The variable part depends on the number of kilometres you declare or that the box records.

In practice, you estimate your annual mileage when you subscribe. The insurer prices the premium on that basis. At the end of the period, two cases: either you drove less than expected and, depending on the contract, the difference may be refunded; or you drove more, and the extra kilometres are billed — without cover ever being interrupted in the meantime. That last point is the reassuring one: driving beyond your allowance does not leave you uninsured, it earns you an adjustment.

From how many kilometres is it really worth it?

Below 10,000 to 12,000 km a year, in the vast majority of cases. That is the threshold Belgian comparators use, and it rests on a simple logic: the less you drive, the lower the variable part stays, and the more the saving on the fixed part tips the balance.

To place your own usage, a benchmark: according to Car-Pass, the official odometer register, a Belgian passenger car drives around 16,000 km a year on average. A car over ten years old drops towards 12,000 km, and a car over twenty years old below 8,500 km. In other words, the average driver drives too much for the per-km formula to be worth it — but a commuter who has moved to remote work, a retiree, a student or the owner of a second car often land right in the target.

Which insurers offer pay-per-km cover in Belgium?

Corona Direct is the historical pioneer of the per-km formula in Belgium, and it is no longer alone. Part of Belfius Insurance since July 2023, it now operates under the Belfius Direct brand, with a model that stays faithful to its origins: an on-board box, prepaid kilometres and, a rarity on the market, a refund of the kilometres you do not drive. Beyond a high cap, additional kilometres are no longer billed.

Around it, several insurers offer variants: Ethias, AXA, Yuzzu, P&V, Allianz, as well as bank players such as ING and Argenta. Beware, though: they do not all use the same mechanics. Some genuinely bill per kilometre; others grant a simple "low-mileage" discount on a flat premium.

These lines tell you where to simulate, not what to choose. The insurer-by-insurer detail is in our ranking of the best car insurers, and the offers go side by side on the comparator.

On-board box or odometer reading: what's the difference?

The box counts your real kilometres, the reading relies on your declaration — and that difference changes two things: precision and privacy. The OBD box, plugged into the car's diagnostic port, measures the kilometres actually driven. It is the fairest: you only pay for what you drive, without having to estimate. In return, it transmits trip data, and you should check what is recorded and what it is used for.

The annual odometer reading, chosen by insurers such as Ethias or AXA on their low-mileage formulas, is lighter: a photo of the odometer or a reading at the roadworthiness test is enough. No tracker, but a starting estimate to make seriously — if you under-estimate to pay less, the adjustment catches up with you, and an under-declaration can be held against you in the event of a claim.

What happens if I exceed my kilometre allowance?

You stay covered, and the insurer bills the extra kilometres at the contractual rate. That is the reassuring point of the formula: exceeding it never leaves you uninsured. What you should look at is the price of the extra kilometre, because it varies widely from one contract to another and decides your real cost if your year is busier than expected.

Some contracts set a cap beyond which kilometres become free — at Belfius Direct, for example, beyond 25,000 km. That is a useful safety net for the exceptional year (a move, a one-off long trip). But a safety net is not a lifestyle: if your years regularly exceed the allowance, the per-km formula is no longer the right one, and a standard premium will cost you less.

Pay-per-km or standard formula: how to decide?

Compare the annual total at equal cover, never the per-km price alone. It is the most common mistake: being drawn in by an attractive per-km rate while forgetting the fixed part. The only figure that counts is the total — fixed part + planned kilometres + margin for overrun — set against the flat premium of the same contract, with exactly the same cover (liability, mini-omnium or omnium, assistance, legal protection).

The method I apply comes in three steps. First, pull your real mileage from the last two years. Then, simulate the per-km formula and the standard formula at the same insurer, at identical cover. Finally, mentally add 1,000 to 2,000 km of margin to your estimate: if the per-km formula still wins even with that margin, it is right for you; if the gap shrinks to a few dozen euros, the standard formula is more relaxing.

Method and sources

The thresholds and ranges quoted are orders of magnitude taken in July 2026 from the public offers and comparators of the Belgian market; they do not replace a personalised quote, which depends on your vehicle, your postcode, your record and your real mileage. The average mileage draws on data from Car-Pass, Belgium's official odometer register. The mechanics of the per-km formula are described by the insurers themselves, notably Belfius Direct. Mention model: no insurer pays to appear in this article, and no link on this page is an affiliate link — we cite, we do not sell.

In summary

Pay-per-kilometre car insurance is neither a gimmick nor a no-brainer: it is a niche formula, cut out for low-mileage drivers and brutal as soon as you drive a lot. The right reflex is always the same — start from your real mileage, compare the annual total at equal cover, and read the overrun clause before signing. Run a premium simulation on both formulas, put the offers side by side, and look at the full ranking for the insurer-by-insurer detail. Compare the cover, not just the price: the "cover" column is the one that decides on the day of the claim.