Most household budgets depend on one or two incomes. If illness or injury stopped you working for months, the bills would not stop with your pay. Two types of insurance exist to bridge that gap, and they are easy to confuse: income protection and mortgage protection. They sound similar and overlap, but they cover different things, cost different amounts, and suit different people. Knowing the difference helps you buy the cover you actually need rather than paying for the wrong thing.
Income protection replaces a portion of your earnings, commonly up to about 75%, paid as a regular benefit while you are unable to work. It is designed to keep your whole household running, covering rent or mortgage, food, power and everything else, not just one bill. Because it is tied to your income, the bigger your earnings, the bigger the benefit it can provide.
Mortgage protection, sometimes called mortgage repayment insurance, focuses on one thing: keeping a roof over your head by covering your mortgage repayments if you cannot work. The benefit is set around your repayments rather than your full income, so it is more limited, but it directly protects the single biggest commitment most families have.
| Feature | Income protection | Mortgage protection |
|---|---|---|
| What it pays | A share of your income | Your mortgage repayments |
| How you can use it | Anything | Geared to the home loan |
| Breadth | Covers your whole budget | Covers the mortgage |
| Cost | Generally higher | Generally lower |
Both types share two important settings that shape the cost and the cover.
Income protection can be agreed value, where the benefit is locked in when you take the policy, or indemnity, where it is based on your income at the time of claim. Agreed value gives certainty, useful if your income varies, while indemnity can be cheaper but may pay less if your income has dropped. Check which type a policy is.
Use our Income Protection Calculator to estimate cover, and the Mortgage Calculator for your repayments.
New Zealand's ACC scheme covers accidents and injuries, paying weekly compensation if an accident stops you working. But ACC does not cover illness. A heart condition, cancer or a back problem from no specific accident would not be covered by ACC, and that is a major gap income protection fills. This is the key reason illness cover matters even though ACC exists.
Because income protection and ACC can both cover an injury, policies usually offset one against the other, so you are not paid twice for the same loss. Understand how your policy treats ACC payments, so you know what you would actually receive in different situations.
The trap: Skipping income protection because you think ACC has you covered.
Why it costs: ACC only covers accidents, not illness, and most long absences from work are due to illness. That leaves a big gap income protection fills.
The trap: Covering just the home loan and forgetting the rest of the budget.
Why it costs: Food, power, rates and other bills continue too. Mortgage protection is a good start but may not keep the whole household afloat.
The trap: Choosing a short wait period without the savings to match, or a long one with no buffer.
Why it costs: A mismatch leaves you either paying more than needed, or unable to cover the gap before payments start. Align the wait period with your emergency savings.
The trap: Assuming the benefit is guaranteed when it is indemnity-based.
Why it costs: If your income fell before a claim, an indemnity policy may pay less than you expected. Know which type you hold, especially if your income varies.
Use the Income Protection Calculator for cover, the ACC Levies guide for how ACC works, and the Stepped vs Level Premiums guide for pricing.
Final word: Income protection replaces a share of your whole income and covers illness as well as injury, making it the broader safety net, while mortgage protection targets your home loan at a lower cost. ACC only covers accidents, so illness cover genuinely matters. Match the cover, wait period and benefit period to your budget and savings, and check the policy type. This is general information, not personalised insurance advice, so talk to a licensed adviser about your needs.
Quiz on Income vs Mortgage Protection (20 Questions)
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