Understanding Excess and No-Claims Bonuses on Car Insurance

Two numbers that quietly shape what you pay

When a car insurance renewal lands in your inbox, most of us look at one figure: the annual premium. But two other numbers do just as much work behind the scenes. The excess is the amount you pay yourself towards any claim, and the no-claims bonus is the discount you build up for every claim-free year. Understanding how both operate gives you real control over what you pay — and, just as importantly, what you receive when something goes wrong.

Neither is a trick. They are simply ways of sharing risk: you accept a slice of the cost, and the insurer rewards you for not claiming. Used well, they can shave a meaningful amount off your premium without leaving you exposed.

What your excess actually means

If you make a claim, the excess is deducted before the insurer pays out. Suppose a repair bill comes to £1,200 and your excess is £250 — you pay £250, the insurer settles £850. Most policies have two parts:

• Compulsory excess — set by the insurer and not negotiable.
• Voluntary excess — an amount you choose to add on top, in exchange for a lower premium.

Typical compulsory excesses run from around £100 to £300 for experienced drivers, and considerably more for younger or newly qualified drivers. Windscreen claims often carry a separate, smaller excess — sometimes £50 to £100 — and many policies waive the excess entirely for a broken windscreen if you use an approved repairer. Check the wording, because it varies.

Here is the catch worth remembering: if the damage costs less than or not much more than your excess, claiming makes little sense. You would lose your no-claims bonus for a payout that barely covers the repair.

How a no-claims bonus builds up

Your no-claims bonus (often shortened to NCB) grows year by year. A common pattern is roughly 30% off after one claim-free year, rising in steps to around 60–70% after five years, when many insurers cap it. Exact percentages differ between providers, so treat yours as the figure that matters.

A few points households often miss:

• The bonus usually belongs to the policyholder, but many insurers let a spouse or partner carry over a named-driver NCB if they take out their own policy.
• It generally follows you to a new car and to a new insurer, provided you can show proof — usually a renewal notice or letter.
• A claim that is not your fault can still affect your premium if the insurer cannot recover its costs, so always ask how a claim will be recorded.
• Named drivers do not normally earn an NCB of their own on someone else's policy.

Is protecting your no-claims bonus worth it?

Protected no-claims cover is an add-on, typically costing somewhere between 10% and 20% of your premium. In exchange, you keep your discount after a claim — usually one or two claims within a set period, often three to five years. Rules vary widely, so read them rather than assume.

The honest answer is: it depends on the maths. A driver paying £400 a year might add £50 to protect a bonus worth perhaps £150 annually. If a single lapse claim would cost more than a few years of the add-on, it can be good value. For a driver already paying £250 with a modest bonus, the sums often do not stack up.

One widespread misconception is worth clearing up: protecting your bonus does not protect your premium. You keep the discount percentage, but the base price can still rise after a claim because your risk profile has changed. Protection keeps the percentage; it does not freeze the total.

Choosing an excess you can actually afford

The temptation is to push your voluntary excess as high as possible to knock down the premium. Resist going further than your emergency fund allows. An excess of £750 looks like a bargain until a £900 repair arrives the same month as the boiler packs in.

A sensible approach is to keep your total excess at a level you could pay tomorrow without borrowing. Then compare quotes at two or three excess levels and note the genuine savings — if raising your excess from £250 to £500 saves only £15 a year, it is rarely worth the extra exposure.

For households with more than one car, it is also worth asking whether a multi-car arrangement or adding an experienced named driver reduces the total. Small, dull steps like parking off-road, fitting a tracker, or paying annually rather than monthly (which usually carries interest) can all trim the bill.

Practical steps to take this week

• Find your policy schedule and note your compulsory and voluntary excess, plus any windscreen excess.
• Confirm how many years of no-claims bonus you hold, and ask for written proof.
• Price protection as an add-on, then compare it against the likely cost of losing the bonus.
• Think twice before claiming for minor scuffs — get a quote first and do the arithmetic.
• Set aside a small "excess fund" so a claim never becomes a cash-flow crisis.

None of this needs to be complicated. Know your excess, guard your bonus, and keep a modest cushion ready. That combination keeps your cover genuinely useful — and keeps you in charge of the numbers rather than the other way round.