What Happens to a Couple's Income When One Partner Dies (NZ, 2026): The Retirement Income Drop

When one partner dies, household NZ Super drops to a single rate and their KiwiSaver goes to the estate, not automatically to the survivor. A plain NZ adviser guide to the income drop and how to protect against it.

When a couple plans their retirement, the numbers usually assume two people: two NZ Super payments, one set of household bills, and savings drawn down across both lives. When one partner dies, that arithmetic changes overnight. Household income falls sharply, but most of the fixed costs of running a home do not. This guide explains how that gap opens up, what happens to the deceased partner's KiwiSaver, and what couples can look at while both are still here.

TL;DR: When one partner in a retired couple dies, the survivor moves from the couple rate of NZ Super to the single rate. Combined household NZ Super drops from about $1,656.68 to $1,076.84 a fortnight, a fall of roughly 35% ³. Their KiwiSaver does not pass automatically to the survivor; it goes to the estate ⁵. Living costs, meanwhile, do not halve.

Why does a couple's retirement income drop when one partner dies?

A retired couple's income usually comes from two layers: NZ Super, paid to each of them, and drawings from their own savings such as KiwiSaver, term deposits and managed funds. Both are affected when one partner dies.

NZ Super is paid per person. While both partners qualify and live together, each receives the couple rate. When one dies, the survivor moves onto the single rate, which is higher than one partner's couple rate but well below what the two of them received together ²³. Household Super income therefore falls, not by half, but by a substantial amount.

The savings layer can fall too. The deceased partner's KiwiSaver does not simply continue in the survivor's name; it becomes part of the estate and is distributed under the will, or under intestacy rules if there is no will ⁵. So the income drop is two things at once: a guaranteed Super payment shrinking, and access to the deceased's savings becoming less automatic than many people assume.

How does NZ Super change from a couple rate to a single rate?

This is the part that surprises people most. NZ Super rates are set by the Government and adjusted each 1 April ⁴. The figures below took effect on 1 April 2025 and apply through 31 March 2026.

When one partner dies, the household goes from the combined couple figure to the single-living-alone figure. In numbers, that is a move from about $1,656.68 to $1,076.84 a fortnight, a fall of roughly $579.84 a fortnight, or about 35% ³.

Figure (described): a before/after bar chart titled "Household income before and after a partner dies". The "before" bar shows combined couple NZ Super ($1,656.68/fortnight) topped by drawings from the couple's KiwiSaver and savings. The "after" bar shows single-rate Super ($1,076.84/fortnight) topped by the survivor's own savings, sitting noticeably lower. A flat dashed line across both bars marks largely unchanged fixed household costs, illustrating the squeeze. Source: Work and Income NZ Super rates ¹²³ and Te Ara Ahunga Ora Retirement Commission guidelines ⁷.

The figure above is the "living alone" rate. A slightly lower single rate applies to people sharing accommodation, so the exact amount depends on the survivor's living arrangements; our guide to NZ Super rates and eligibility has more. The key point is that for most surviving partners, guaranteed government income drops by something in the order of a third.

Why don't your living costs halve?

If income falls by about a third, it would be reasonable to hope spending falls by a similar amount. In practice it usually does not, because many household costs are fixed regardless of how many people live in the home.

Rates, house and contents insurance, broadband, and the cost of the home itself are much the same for one person as for two. Power and heating fall a little, but not by half, because the house still has to be warmed. Vehicle costs, maintenance and many subscriptions carry on largely unchanged. Food and a few personal costs do drop, but they are a smaller slice of the total than people expect. The Retirement Commission's retirement expenditure guidelines put numbers behind this: single-person retirement budgets sit well above half of two-person budgets, the clearest sign that running a home for one is not half as cheap as running it for two ⁷.

The result is a squeeze. Income has fallen by roughly a third, while spending might fall by only a fraction of that, and the gap usually has to be met from savings, often while the survivor is also dealing with grief.

What happens to the deceased partner's KiwiSaver?

KiwiSaver does not work like a life insurance policy. There is no nominated beneficiary on a KiwiSaver account, so the balance does not pass straight to the surviving partner. When a member dies, their full KiwiSaver balance becomes part of their estate and is distributed according to their will, or under the intestacy rules if they did not leave a will ⁵.

How the funds are released depends on the size of the balance:

• Below the small-estates threshold, an authorised person such as the surviving partner or next of kin can usually claim the money directly from the provider without needing probate or letters of administration. As at the date of this article that threshold was $15,000, raised to $40,000 from late 2025 ⁶.
• Above the threshold, the executor generally has to obtain probate (or letters of administration where there is no will) before the provider will release the funds ⁶.

That second path takes time and paperwork. A survivor who assumed their partner's KiwiSaver would simply be "theirs" can find it tied up in estate administration for weeks or months, right when cash flow is already tight. Whether they ultimately receive it also depends on the will: if it leaves assets to children, a trust or others, the survivor may not get the full balance. Our guide to KiwiSaver on death and the estate covers the mechanics. The practical takeaway is that a couple should not assume one partner's KiwiSaver automatically becomes the other's spending money, and should make sure their wills say what they intend.

KiwiSaver is a long-term savings scheme. Government contributions, contribution rates, withdrawal rules and tax (PIR) settings are set by the Government and can change. Figures are correct as at 25 April 2025. Check current rules at ird.govt.nz, kiwisaver.govt.nz and sorted.org.nz, and the relevant scheme's Product Disclosure Statement.

How can surviving partners be left short — and what protects them?

Putting the pieces together, a surviving partner can be left short in several ways at once:

• Guaranteed income falls by about a third, from the couple total to the single rate ³.
• Fixed costs barely move, so the budget that worked for two no longer balances for one ⁷.
• The deceased's KiwiSaver is not immediately available, and may not pass to the survivor in full ⁵⁶.
• Other income can stop too. Any annuity, employment or business income the deceased provided ends, and some private pensions reduce or cease for a survivor.

A few things commonly protect against this: understanding it in advance, so the survivor's budget is built around the single rate; structuring the couple's assets and wills so the survivor has clear, prompt access to savings; and, where there is a genuine shortfall, a deliberate income source set aside for the survivor, whether earmarked savings, how investments are arranged, or life cover. None of these removes the income drop on its own. They are about making sure the survivor is not also caught out by it.

What is the role of life insurance and an income floor at this stage?

By the time a couple is retired, the job of life insurance is usually different from when they were younger. When you are working with a mortgage and dependent children, life cover is largely about clearing debt and replacing income for the family ⁴. In retirement, the mortgage is often gone and the children have left home, so the question becomes narrower: would the survivor have enough to live on once household income drops to the single rate?

For some couples the answer is yes. They have enough savings that the survivor can absorb the drop, and additional cover would be an unnecessary cost. For others there is a real gap, particularly where much of the couple's income depended on both NZ Super payments and there is limited savings to fall back on. In that situation, some people keep a modest amount of life cover to give the survivor a cushion, while others build that cushion in savings instead. There is also the idea of a guaranteed income floor: arranging things so the survivor has a dependable level of income regardless of markets, with NZ Super as the base and savings or cover topping it up. Our guide to a guaranteed income floor in retirement covers how people approach that.

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 or product disclosure statement. We work with a panel of selected insurers; the right approach, if any, depends entirely on your circumstances, and personalised advice works through whether cover fits or whether savings alone are enough.

What should you check in your plan while you're both still here?

This is far easier to sort out together than to leave for the survivor to untangle alone. A few things worth checking:

• Run the survivor's budget on the single rate. Take your current spending, strip out only the costs that genuinely fall for one person, and compare it to the single-living-alone rate of NZ Super ²⁷. The gap, if any, is what you are planning for.
• Check both wills are current and say what you intend, especially regarding KiwiSaver, the home and any trust.
• Know how your savings are held. Jointly held bank accounts and property usually pass more simply to a survivor than assets held solely in the deceased's name, which go through the estate.
• Review any existing life cover. Cover taken out years ago may no longer match your situation, for better or worse.
• Make sure the survivor knows where everything is — accounts, providers, advisers and documents. A simple written summary saves a great deal of stress.

These are general prompts, not a checklist that fits everyone. The right answers depend on your assets, your health, your family and what you want for each other.

What steps should a surviving partner take?

If you are the surviving partner, the practical steps in the early weeks include:

• Tell Work and Income so your NZ Super is updated to the correct single rate and any survivor support you may be entitled to is assessed ².
• Contact your partner's KiwiSaver provider to start releasing their balance, and ask whether probate is needed given the account size and the current small-estates threshold ⁵⁶.
• Locate the will and speak to the executor (which may be you) about administering the estate.
• Review your own budget against your new single-rate income, and work out whether and when you need to draw on savings.
• Take your time on big decisions. Selling the home is rarely urgent, and is usually better left until the immediate income question is settled.

Support is available from Work and Income, Sorted and Citizens Advice, and an adviser can help you map out your income from here.

Frequently asked questions

How much does household NZ Super drop when one partner dies? The survivor moves from the couple rate to the single-living-alone rate. Combined household NZ Super falls from about $1,656.68 a fortnight to $1,076.84 a fortnight, a drop of roughly $579.84, or about 35% ¹²³. The exact single rate depends on living arrangements, as a slightly lower rate applies to those sharing accommodation. Rates change each 1 April ⁴.

Does my partner's KiwiSaver automatically come to me if they die? No. KiwiSaver has no nominated beneficiaries, so the balance does not pass automatically to a surviving partner. It becomes part of the deceased's estate and is distributed under their will, or under intestacy rules if there is no will ⁵. Whether you receive it, and how quickly, depends on the will and on whether probate is required ⁶.

Will I need probate to get my partner's KiwiSaver? It depends on the balance. Below the small-estates threshold (which was $15,000 at the date of this article, rising to $40,000 from late 2025), an authorised person can usually claim the funds from the provider without probate. Above that, the executor generally needs probate or letters of administration first ⁶. Your partner's provider can confirm what they require.

Why don't my living costs halve when I'm on my own? Many household costs are fixed regardless of how many people live in the home: rates, house and contents insurance, broadband and housing all cost much the same for one person as for two, and heating falls only a little. The Retirement Commission's guidelines show single-person retirement budgets sit well above half of two-person budgets ⁷, so income drops faster than spending.

Should retired couples keep life insurance? Some do and some do not; it depends on the gap. If a survivor would have enough savings to absorb the drop to single-rate income, additional cover may be an unnecessary cost. Where there is a real shortfall, some couples keep modest cover as a cushion while others build that cushion in savings instead ⁴. Whether a claim pays depends on the policy terms and your disclosure. Personalised advice works through whether cover fits your situation.

What is the first thing a surviving partner should do about their income? Contact Work and Income so your NZ Super is moved to the correct single rate, then review your budget against that new income to see whether and when you need to draw on savings ². Big decisions such as selling the home are rarely urgent.

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. Craig Smith Business Services Ltd (FSP712931), trading as Smiths Financial, holds a Class 2 licence issued by the Financial Markets Authority and is a member of the Financial Dispute Resolution Service (FDRS). Smiths Financial does not provide legal or estate-administration advice; for wills, probate and estate matters please consult a lawyer. Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 25 April 2025.