Why does car insurance ask about my occupation?

Because insurers price by statistical risk, and occupation has historically correlated with claims frequency and severity in their data. It is not a judgement about you individually.

What occupation is used as a proxy for:

Mileage and driving patterns. Some jobs involve substantial commuting, driving between sites, or driving at high-risk times such as night shifts.

Where the car is parked during the day. A vehicle on a busy commercial street all day carries a different risk from one on a residential drive.

Time pressure. Occupations where drivers are routinely running late correlate with more claims.

Vehicle use. Carrying tools, equipment or goods changes both theft risk and liability.

Behavioural correlations that insurers observe in their claims data without necessarily having a causal explanation.

Why small wording changes alter the price. Insurers use fixed occupation lists, and adjacent-sounding descriptions map to different risk categories — "chef" and "kitchen assistant", "journalist" and "editor", "builder" and "labourer" can produce noticeably different quotes.

This has led to a practice worth being careful about. It is legitimate to select the description that most accurately reflects your actual job, and if several apply honestly, comparing them is reasonable. It is not legitimate to select an inaccurate one because it is cheaper. That is misrepresentation, and it can lead to a reduced settlement, a voided policy, or a refused claim. The saving is small and the exposure is not.

Related questions serve the same function: annual mileage, whether use is social only or includes commuting or business use, and where the car is kept overnight. All must be accurate.

Tell your insurer if your job changes, as policies require notification of material changes mid-term.

Some jurisdictions restrict occupational rating, and the practice attracts criticism for penalising particular groups without clear causal justification.