Personal liability: the part of the policy that matters most

What it is actually for

Contents insurance is two products in one wrapper. The first covers your things. The second covers you — specifically, it responds when you are legally liable for accidentally damaging someone else's property or injuring someone.

For a homeowner, that second part is about the neighbour's fence and the visitor who trips on the step. For a renter, it points squarely at the building you live in, because the building belongs to someone else. Every wall, floor, benchtop, oven, window and carpet in your home is another party's property that you are living inside.

How it meets the law

New Zealand law already limits what you owe. If you or a guest cause careless damage, you are liable up to four weeks' rent or the landlord's insurance excess, whichever is lower. That cap is explained in full here.

The cap decides how much you owe. Liability cover decides who actually pays it. Without cover, a capped liability is still money out of your account — and where the landlord's excess is the lower of the two figures, the excess is the number you are asked for, in one go.

AA Insurance sets out this exact mechanic on its own renters page, using carpet staining as the example: where the landlord makes a claim, AA covers the difference between the landlord's excess and the renter's contents excess. That is one insurer's published description of its own product. Others structure it differently, which is genuinely worth asking about rather than assuming.

The limits insurers publish

The liability limits on renters products are large relative to everything else in the policy. On its renters insurance page, AA Insurance publishes cover of up to $2 million where you are legally liable for accidentally damaging someone else's property. State publishes legal liability cover of up to $2,000,000. Tower lists liability protection on all three of its renter tiers but does not publish a figure for it on that page.

We deliberately do not put those in a comparison table. Two of the three insurers here publish a figure and one does not, and Tower's tiers carry materially different limits for other named benefits — its published mobile phone cover runs from $500 to $10,000 depending on tier. A single row implying like-for-like comparison would be misleading. Each figure above is that insurer's own published summary, and the policy wording governs.

Where it stops

• Deliberate acts. Vero publishes that policies are designed to cover accidental damage and that deliberate damage generally will not be covered — and deliberate damage sits outside the statutory cap too.
• Your own property. Liability cover is for damage to other people's property. Your own things sit under the contents section with its own sum insured.
• The landlord's chattels, in some situations. Furniture and appliances the landlord provides under the tenancy agreement are the landlord's to insure, and Tenancy Services states directly that damage to them is not covered by the tenant's contents insurance. How your liability section responds to damaging them is a wording question worth asking.
• Business activity. Working from home is usually fine; running a business from a rental often is not, and can affect both sections of the policy.