Mortgage repayment insurance and income protection both pay when you cannot work, but they are calculated differently and pay different amounts. Here is how each benefit is set, what reaches you at claim time, and which protects more than just the home loan.
Mortgage repayment insurance and income protection are easy to confuse. Both pay a monthly amount when you cannot work, and both are often discussed at the same time you take out a home loan. But they are built differently, and the difference only becomes obvious at claim time, when one of them sizes its payment to your loan and the other sizes it to your income.
That distinction matters because a mortgage is usually the largest fixed cost in a household, but it is not the only one. This article walks through how each benefit is calculated, what actually reaches you when a claim is paid, whether either covers redundancy, and how to think about choosing between them on a mortgage.
TL;DR: What is the difference at claim time?
TL;DR: Mortgage repayment insurance pegs its benefit to your loan repayment, so it pays roughly enough to keep the mortgage current. Income protection pays a percentage of income, usually up to 75% of pre-tax earnings 1, so it covers the mortgage and the rest of your bills. Neither covers redundancy as standard 9. Both let you choose a waiting period and benefit period.
The key number is 75%. That is the usual ceiling income protection replaces 1. Mortgage repayment insurance has no such percentage, because it is not measuring your income at all.
What is mortgage repayment insurance and how is the benefit set?
Mortgage repayment insurance sets its benefit by reference to your loan repayment, not your salary. The cover is pegged to the regular mortgage payment, and sometimes to related housing costs such as rates and house insurance, so the monthly payout is sized to keep the home loan current rather than to replace a slice of income 6.
In practice that means you nominate a benefit roughly equal to your mortgage repayment. If your repayments are $2,800 a month, you might insure around that figure. When a claim is accepted, the policy pays that amount, monthly, while you remain unable to work and within the benefit period.
The logic is simple. For most New Zealand homeowners the mortgage is the single largest fixed household outgoing, and housing loans dominate household liabilities 7. Repayment-specific cover protects that obligation first, on the view that keeping the roof over your head is the priority if income stops.
The trade-off is also simple. Because the benefit is built around the loan, it is generally not designed to stretch to your other living costs. Power, food, school costs, car, insurances and everything else still have to come from somewhere.
How is income protection's benefit calculated differently?
Income protection takes the opposite approach. It calculates the benefit as a percentage of your income, not your mortgage. In New Zealand it typically replaces up to 75% of pre-tax (pre-disability) income, paid as a monthly benefit while you cannot work due to illness or injury 1.
That 75% is the standard maximum on an indemnity basis, where the benefit is checked against your income at claim time. Agreed-value cover, where the amount is fixed when the policy is set up, is usually capped a little lower, around 62.5% 1. Either way the cap is deliberate: replacing the whole of your income would remove the financial incentive to return to work, so insurers, in line with the life-insurance industry framework, hold the replacement below 100% 1.
The practical effect is that income protection is sized to your earnings, so the benefit is meant to cover the mortgage and the rest of the household budget, up to that 75% ceiling. It does not single out the home loan; it replaces a portion of the income that was paying for everything.
For a fuller comparison of these two structures on a real home loan, our guide on [income protection or mortgage protection for your home](income-protection-or-mortgage-protection-home-nz) works through the choice in more detail.
What happens at claim time with each one?
This is where the structural difference becomes concrete. Consider a homeowner with a $2,800 monthly mortgage and a $7,000 monthly take-home household budget.
| At claim time | Mortgage repayment insurance | Income protection |
|---|---|---|
| Benefit basis | Pegged to the mortgage repayment 6 | Percentage of income, up to 75% pre-tax 1 |
| Typical monthly payout | ~$2,800 (the repayment) | Up to ~75% of income across the whole budget |
| Mortgage covered? | Yes, that is the design | Yes, as part of overall income |
| Other bills covered? | Generally no | Yes, within the 75% ceiling |
| Pays for illness? | Yes, subject to terms | Yes, subject to terms |
| Pays for injury? | Yes, subject to terms | Yes, subject to terms |
| Covers redundancy? | No (optional add-on only) 9 | No (optional add-on only) 9 |
Whether either policy pays at all depends on the terms, conditions, exclusions, stand-down periods and underwriting of the specific policy, and on your disclosure. This is a summary only — always read the policy wording or product disclosure statement.
The headline difference: mortgage repayment cover keeps the loan current and stops there; income protection replaces a portion of income that the household can then spread across the mortgage and everything else.
Does either cover redundancy or only illness/injury?
Neither mortgage repayment insurance nor income protection covers redundancy as standard. Both pay only when you cannot work because of illness or injury, subject to policy terms 9.
Redundancy cover, where it is offered at all, is a separate optional add-on with its own limits, often capped at around six monthly payments, and it is not part of the core illness or injury benefit 9. So a policy that pays well for a long illness may pay nothing if you are made redundant, unless you have specifically added redundancy cover and the claim meets its conditions.
This catches people out because the two events feel similar from a household budget point of view: in both cases the income stops. But from the policy's point of view they are different triggers, and only the illness or injury trigger is covered by the core benefit.
It is also worth separating illness from injury, because they are not covered the same way by the public system. ACC pays weekly compensation of up to 80% of pre-injury weekly earnings, but only for personal injury caused by an accident — ordinary illness such as cancer, heart disease and most mental-health conditions is not covered 2. That ACC payment is capped at $2,418.55 gross a week from 1 July 2025 3, on earnings up to $152,790 for the 2025/26 year 4, and ACC does not pay for the first week of incapacity 5. Most long absences from work are driven by illness, which ACC does not touch, and that is the gap both private covers are designed to fill. Our article on being [off work through illness, not injury](off-work-illness-not-injury-income-cover-nz) explains that gap, and [why ACC is not income protection](acc-is-not-income-protection-five-limits-nz) sets out the limits in full.
How do waiting periods and benefit periods compare?
Both products use the same two levers, and they work the same way on each.
- Waiting period (or stand-down): how long you wait after stopping work before the policy starts paying. Commonly 30, 60 or 90 days, sometimes longer 8.
- Benefit period: how long the policy keeps paying once it starts. Commonly 2 years, 5 years, or to age 65 or 70 8.
A longer waiting period lowers the premium, but it means you must self-fund, or rely on sick leave and any ACC entitlement, for longer before the policy pays 8. Someone with a solid emergency fund might choose a 90-day wait to reduce cost; someone with little buffer might prefer 30 days and accept the higher premium.
| Lever | Common options | What it changes |
|---|---|---|
| Waiting period | 30 / 60 / 90 days (sometimes longer) 8 | Longer wait = lower premium, but you cover the gap yourself |
| Benefit period | 2 years / 5 years / to age 65–70 8 | Longer benefit period = more protection for a long claim, higher premium |
Remember ACC's own first-week stand-down sits underneath all of this for injuries 5, and ACC pays nothing for illness at all 2, so the waiting period you choose should be set against your real safety net, not the headline ACC figure.
Which leaves money for the rest of your bills?
This is the practical heart of the comparison. Income protection is the one designed to leave money for the rest of your bills, because it replaces a percentage of income rather than a single loan repayment 16.
Picture the household above with a $7,000 monthly budget, of which $2,800 is the mortgage:
- Mortgage repayment insurance pays around $2,800. The loan stays current. The remaining $4,200 of monthly living costs is not covered by this policy.
- Income protection at up to 75% of income aims to replace a large portion of the whole $7,000, which the household can then apply to the mortgage and to the other $4,200.
Neither is automatically "better". Mortgage repayment cover is narrower and usually cheaper, and it does the one job of protecting the home loan. Income protection is broader and generally costs more, because it is replacing income across the entire budget. The right answer depends on what other savings, cover and household income you already have.
How do you choose between them on a mortgage?
There is no single correct choice, and it depends on your circumstances rather than a rule of thumb. Factors that influence the decision for people with a mortgage include:
- Whether anyone else earns in the household. A second income changes how much of the budget needs insuring. Protecting the mortgage on a [single-income household](protecting-mortgage-single-income-household-nz) is a different calculation.
- Your emergency fund and sick-leave buffer, which shape the waiting period you can afford to carry.
- Your other fixed costs beyond the mortgage, and whether a loan-only benefit would leave a gap.
- Existing cover and ACC, since ACC covers injury but not illness 2, and only up to its caps 34.
- Budget, since the broader cover generally costs more.
Some people layer both: mortgage repayment cover as a floor that guarantees the loan is protected, with income protection over the top for the rest of the budget. Others choose one. Personalised advice works through what fits your numbers rather than starting from the product.
A balanced view matters here. Mortgage repayment insurance can be a sensible, lower-cost way to protect the single biggest bill, but it is not a whole-of-budget solution. Income protection covers more, but at a higher premium and with its own definitions, exclusions and underwriting to work through. Whichever you consider, read the wording and check how illness, the waiting period and the benefit period are defined.
Frequently asked questions
What is the difference between mortgage repayment insurance and income protection in NZ? Mortgage repayment insurance pegs its monthly benefit to your loan repayment, so it pays roughly enough to keep the mortgage current 6. Income protection pays a percentage of your income, usually up to 75% of pre-tax earnings, so it is meant to cover the mortgage and the rest of your bills 1. The difference is clearest at claim time.
Does mortgage repayment insurance cover redundancy? Not as standard. Both mortgage repayment insurance and income protection pay only for illness or injury under the core benefit. Redundancy cover, where offered, is a separate optional add-on with its own limits, often capped at around six monthly payments 9.
Does income protection pay for illness as well as injury? Income protection can be set up to cover both illness and injury, subject to the policy terms, exclusions, stand-downs and underwriting 1. This matters because ACC covers injury from an accident only, not ordinary illness such as cancer or heart disease 2. Whether any claim is paid depends on the specific policy and your disclosure.
How do waiting periods and benefit periods work? The waiting period is how long you wait before the policy starts paying, commonly 30, 60 or 90 days. The benefit period is how long it keeps paying, commonly 2 years, 5 years, or to age 65 or 70 8. A longer waiting period lowers the premium but means you self-fund for longer first.
Which one protects more than just the home loan? Income protection, because it replaces a percentage of income across the whole household budget rather than a single loan repayment 16. Mortgage repayment insurance is designed to keep the loan current and generally does not stretch to other living costs.
Can I have both? Some people hold both, using mortgage repayment cover as a floor for the loan and income protection over the top for the rest of the budget. Whether that suits you depends on your income, savings, existing cover and budget. This is general information; personalised advice can work through what fits your situation.
This article is general information only and is not personalised financial advice. It does not take into account your particular financial situation, goals or needs. Before acting, consider whether it's right for you and seek advice tailored to your circumstances.
Whether a claim is paid depends on the terms, conditions, exclusions, stand-down periods and underwriting of the specific policy, and on your disclosure. This is a summary only — always read the policy wording / product disclosure statement.
We're generally paid by commission from the insurer or provider when you take out a policy or product through us; this doesn't change the premium or price you pay. Some arrangements may involve a fee, which we agree with you first. We manage any conflicts of interest in line with our duty to prioritise your interests — full details in our Disclosure.
Smiths Financial is a trading name of Craig Smith Business Services Ltd (FSP712931), which holds a Class 2 financial advice provider licence issued by the Financial Markets Authority to provide financial advice on personal risk insurance, health insurance, general insurance, KiwiSaver and managed funds. Our advisers, Henry Smith (Financial Adviser) and Craig Smith (Principal Adviser), are bound by the Code of Professional Conduct for Financial Advice Services and the duty to give priority to clients' interests. Craig Smith Business Services Ltd is a member of the Financial Dispute Resolution Service (FDRS), a free and independent dispute resolution scheme. Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 15 November 2025.
Sources
- 1.Financial Services Council (FSC) — NZ life-insurance industry standards: income protection typically replaces up to 75% of pre-tax income (indemnity); agreed-value cover usually capped around 62.5% (as at 15 November 2025).
- 2.ACC — Weekly compensation: up to 80% of pre-injury weekly earnings, personal injury by accident only (as at 15 November 2025).
- 3.ACC — Weekly compensation maximum of $2,418.55 gross per week, effective from 1 July 2025 (2.89% annual indexation).
- 4.ACC — Maximum liable earnings of $152,790 for the year 1 April 2025 to 31 March 2026.
- 5.ACC — Weekly compensation: ACC does not pay for the first week of incapacity (as at 15 November 2025).
- 6.Financial Services Council (FSC) — NZ life-insurance industry: mortgage repayment cover benefit pegged to the mortgage repayment (as at 15 November 2025).
- 7.Reserve Bank of New Zealand (RBNZ) — Household debt and mortgage-lending statistics: housing loans dominate household liabilities (as at 15 November 2025).
- 8.Financial Services Council (FSC) — NZ life-insurance industry: waiting periods commonly 30/60/90 days; benefit periods commonly 2 years, 5 years, or to age 65–70 (as at 15 November 2025).
- 9.Financial Services Council (FSC) — NZ life-insurance industry: mortgage repayment and income protection cover illness/injury only; redundancy is a separate optional add-on, often capped around six monthly payments (as at 15 November 2025).
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