How Much Contents Insurance Do You Need in NZ?

Why Getting Your Contents Sum Insured Right Matters

Your sum insured is the maximum amount your contents insurer will pay out if you make a claim. It is the ceiling on your policy. If a fire, burglary, or flood destroys $80,000 worth of your belongings but your sum insured is only $50,000, you are responsible for the $30,000 shortfall.

Underinsurance is one of the most common problems with contents insurance in New Zealand. The Insurance Council of New Zealand (ICNZ) has highlighted that many Kiwi households carry significantly less cover than they need. People tend to underestimate the replacement cost of their belongings because they think about individual items rather than the total picture.

The issue cuts both ways. Overinsuring means paying higher premiums than necessary for cover you will never use. Underinsuring means being left out of pocket at exactly the moment you can least afford it. The goal is to land on a sum insured that accurately reflects the replacement cost of everything you own.

Some insurers also apply average clauses or proportional reduction. This means that if your sum insured is significantly below the true value of your contents, the insurer may reduce your payout proportionally - even for a partial claim. For example, if you are insured for half the actual value, you might receive only half of any claim. Not all insurers do this, but it is worth understanding. The Citizens Advice Bureau has plain-English information on how insurance payouts work in New Zealand.

Getting your sum insured right starts with one thing: knowing what you own and what it would cost to replace. That means creating a home inventory.

How to Create a Home Inventory

A home inventory is simply a list of everything you own, with an estimate of what each item would cost to replace brand new. It sounds like a big job, and it does take a couple of hours to do properly - but it is the single most useful thing you can do for your contents insurance.

Beyond setting your sum insured accurately, a home inventory also makes the claims process much faster. If you need to claim after a fire or burglary, having a detailed list with photos and approximate values means you can provide your insurer with everything they need upfront, rather than trying to remember from scratch what you owned.

You can do your inventory on paper, in a spreadsheet, or using a dedicated app. Several NZ insurers offer free home inventory tools. Sorted.org.nz also has an insurance calculator that guides you through the process room by room.

The key is to be thorough. Go through every room, every cupboard, every drawer. Open the garage. Check the shed. Look under the beds. The items you forget are the ones that catch you out at claim time.

Store your completed inventory somewhere safe outside your home - cloud storage, email it to yourself, or keep a copy at a family member's house. If your home is destroyed, a paper list kept in a kitchen drawer is not going to help.

Typical Contents Values by Room

One of the reasons people underestimate their contents value is that individual items seem inexpensive. A set of towels, a toaster, a few cushions - none of these feel like much on their own. But when you add up every item in every room, the numbers get large quickly.

The table below shows indicative replacement values for the contents of each room in a typical New Zealand household. These are rough ranges based on a mid-range household - your actual figures could be higher or lower depending on your lifestyle and the quality of your belongings.

Use these numbers as a starting point, then adjust based on your own inventory. If you have a home office with expensive equipment, or a garage full of power tools, or a wardrobe of designer clothing, your totals for those rooms will be well above the mid-range figures.

For more detail on what contents insurance covers in each room, see our guide to what contents insurance covers.

High-Value Items and Specified Cover

Most contents policies have a per-item limit for unspecified belongings - typically between $1,500 and $3,000 per item. Anything worth more than that limit needs to be individually listed (specified) on your policy with an agreed value. If you skip this step, you will only receive up to the per-item limit at claim time - regardless of the item's actual value.

This is one of the most common ways people end up underinsured. A $6,000 engagement ring claimed as an unspecified item might only pay out $2,000 if the per-item limit is $2,000. A $4,000 mountain bike, a $3,500 camera, an $8,000 watch - all of these need to be specified to receive their full replacement value.

To specify an item, you typically need to provide the insurer with a description, the replacement value, and supporting evidence. This might include purchase receipts, a professional valuation (common for jewellery and art), or photographs. Some insurers accept online price comparisons for electronics and sporting goods.

It is also worth checking whether your policy has category limits - a maximum total payout for all jewellery combined, or all electronics combined. Even if individual items are specified correctly, a category cap could limit your total payout if you have multiple high-value items in the same category.

Consumer NZ has useful comparisons of how different insurers handle per-item limits and category caps. The insurance brand Cove, Tower, and AMI all publish their per-item limits and category caps in their policy wording.

For a full explanation of how specified and unspecified items work, see our contents insurance cover guide.

Replacement Value vs Current Value - Which Basis Applies?

When you set your sum insured and when your insurer calculates a payout, there is an important distinction between replacement value and current (indemnity) value. Understanding which basis your policy uses is critical to knowing how much you will actually receive.

Replacement value (new for old) means the insurer pays the cost of replacing a damaged or stolen item with a brand new equivalent - regardless of how old the original item was. If your five-year-old TV is stolen, you receive enough to buy a new TV of similar type and quality. Most NZ contents policies operate on a replacement value basis, which is generally more favourable.

Current value (indemnity) means the insurer factors in depreciation. The payout reflects what the item was worth at the time of the loss, not what it costs to buy new. A five-year-old TV might only pay out 40-50% of what a new equivalent costs, because it has been depreciated based on age and condition.

The difference can be significant. A household full of items that are a few years old could have a replacement value of $80,000 but a current value of only $40,000 to $50,000. On a current value policy, you would receive far less than it costs to actually replace your belongings.

Most standard contents policies in New Zealand use replacement value as the default basis. However, some budget or basic policies may use current value, and some policies switch to current value for certain categories of items or for items above a certain age. Always check the settlement basis in your policy wording.

For a detailed comparison of how these two approaches work across all types of insurance, see our guide to insurance excess and the Sorted.org.nz contents insurance guide.

Common Underinsurance Traps

Underinsurance is rarely deliberate. It usually happens because of a few predictable mistakes that are easy to avoid once you know about them.

Guessing instead of counting. The most common trap is estimating your contents value off the top of your head instead of doing a proper room-by-room inventory. People consistently underestimate by 30-50% or more. The only reliable way to set your sum insured is to count and value everything.

Forgetting entire categories. Clothing is the big one. Most people do not think of their wardrobe as a high-value asset, but add up every piece of clothing, every pair of shoes, every jacket, and every accessory across a household and it can easily total $10,000 to $30,000 or more. Other commonly forgotten categories include linen, tools, garden equipment, children's toys, and pantry contents.

Not updating after purchases. Every time you buy new furniture, electronics, appliances, or other significant items, your total contents value increases. If you bought a new couch, a new laptop, and upgraded your kitchen appliances over the past year, your sum insured may already be too low.

Using purchase prices instead of replacement costs. A couch you bought on sale for $1,200 three years ago might cost $2,000 to replace today at full price. Electronics often go the other way - a TV you paid $3,000 for might only cost $1,500 to replace with an equivalent model. The figure that matters is what it costs to replace the item new today.

Ignoring inflation. Prices rise over time. A sum insured that was accurate two years ago may already be 5-10% too low simply due to general price increases. The Reserve Bank of New Zealand tracks inflation data that can give you a sense of how quickly prices are moving.

Not specifying high-value items. As covered above, items worth more than the per-item limit need to be specified. Failing to do this does not just mean you get less for that specific item - it can also mean your overall sum insured is inaccurate because you did not fully account for the value of your high-end belongings.

• Guessing your total instead of doing a room-by-room inventory
• Forgetting clothing, linen, tools, and garden equipment
• Not updating your sum insured after buying new items
• Using what you paid instead of what it costs to replace today
• Ignoring inflation and general price increases over time
• Failing to specify items above the per-item limit
• Overlooking shared or communal items in flatting situations
• Assuming your existing sum insured is still accurate year after year

Items People Commonly Forget to Include

Even with a careful inventory, certain categories of items tend to get overlooked. These are the things that add up to thousands of dollars but do not immediately come to mind when people think about their belongings.

The Insurance Council of New Zealand notes that underestimating contents value is one of the most common issues they see, and that forgotten items are a major contributing factor.

Keeping Your Sum Insured Up to Date

Setting your sum insured once and forgetting about it is a recipe for underinsurance. Your belongings change over time - new purchases, gifts, hand-me-downs, lifestyle changes - and so do prices. An annual review is the minimum, and it does not need to take long if you keep your inventory updated.

Review at renewal time. When your contents insurance comes up for renewal, take 30 minutes to review your inventory. Have you bought anything significant in the past year? Have prices changed for key categories? Some insurers apply an automatic inflation adjustment, but these are often conservative and may not reflect actual price movements.

Update after major purchases. If you buy a new couch, a new TV, a new laptop, or any other item worth more than a few hundred dollars, add it to your inventory and consider whether your sum insured needs to increase. Many people buy new items without thinking about the insurance implications.

Life events trigger changes. Moving in with a partner doubles the contents in your home. Having a baby adds an entire category of new belongings (and they keep growing). Children leaving home reduces your contents value. Any significant life change is a prompt to review your sum insured.

Keep receipts and records. Digital copies of receipts, photos of valuables, and serial numbers for electronics all make the claims process smoother. Cloud storage is the easiest solution - create a dedicated folder and add to it as you make purchases.

Revalue specified items periodically. Jewellery, art, and collectibles can change significantly in value over time. A ring valued at $5,000 three years ago might be worth $7,000 today. If your specified value is too low, you will receive less than the item is worth. Professional revaluations every two to three years are worth considering for high-value items.

For renters, these same principles apply - see our renters insurance guide for specific tips. The Sorted.org.nz insurance guides also include practical checklists for annual insurance reviews.