Reverse Mortgages and Equity Release in NZ (2026): How They Work and What They Really Cost

A reverse mortgage lets you stay in your home and borrow against it, with nothing to repay until you leave. But compounding interest at rates well above a normal home loan steadily erodes your equity. Here is the real picture, including the protections and the alternatives.

A reverse mortgage lets an older homeowner borrow against the home they live in and stay put, with nothing to repay until they sell, move into care, or die. For people who are asset-rich but cash-short, it can release money without forcing a move. The catch is the cost: interest compounds at rates well above a normal home loan, so the debt grows quietly in the background and eats into the equity left for you and your family. This guide walks through how it works, what it really costs, the protections built in, and the alternatives worth weighing first.

TL;DR: A reverse mortgage lets people aged 60+ borrow against their home and stay in it, repaying nothing until they leave. You can borrow more with age — roughly 20% of the home's value at 60, rising to 50% at 90 with the main NZ provider. ¹ Interest compounds at floating rates that have generally sat around 7%–9.5% p.a., ⁵ so at about 8% the debt roughly doubles every nine years. ⁷ A no-negative-equity guarantee caps the downside, ² but the equity left for your estate shrinks over time.

What is a reverse mortgage and how does equity release work in NZ?

A reverse mortgage is a loan secured against your home, designed for older homeowners. Instead of you making regular repayments, the interest is added to the loan balance each month and the whole debt is repaid in one go later — usually when the house is sold after you move into care or pass away. You keep living in the home in the meantime.

The "reverse" part is the point. With an ordinary mortgage the balance falls over time as you pay it down. With a reverse mortgage the balance rises over time, because nothing is being repaid and interest keeps accruing. You are releasing equity you have already built up, turning part of the value of your home into cash you can spend now.

Equity release in New Zealand mostly means one of two products. A reverse mortgage is a loan, as described above. The other is home reversion, where you sell a share of your home to a provider in exchange for a lump sum and keep living there — the Retirement Commission describes these as the two main home equity release products in the NZ market. ² Home reversion is barely available here in practice, so for most people "equity release" and "reverse mortgage" mean the same thing.

People generally use the money for everyday living costs, home repairs, a new car, medical or dental work, or to clear other debt. Drawdowns are a release of your own equity, not income, so they do not affect your NZ Superannuation entitlement or the tax rate on your super — NZ Super keeps being paid as normal. ⁹

Who offers reverse mortgages in NZ in 2026?

The New Zealand market is small and concentrated. In practice only two providers materially offer reverse mortgages or home equity release: Heartland Bank, the clear market leader through its Seniors Finance / reverse mortgage division, and SBS Bank. ³ There is no separate retail "Lifetime" equity-release scheme of the kind seen overseas; the NZ market remains early-stage. ³

To give a sense of scale, Heartland Bank's reverse mortgage book in New Zealand reached about $1.15 billion, up $82.4m (15.3%) on a year earlier, with an average current loan size of $147,446 and an average age of 73 for the youngest borrower among new customers. ⁴ So this is a real, growing market, but a thin one — and with only a couple of lenders, there is little price competition, which is part of why the interest rates sit well above a standard home loan.

A small market matters for you in two ways. There is not much shopping around to be done on rate, and the product terms are fairly standardised. That makes it all the more important to understand the mechanics before committing, rather than assuming competition will keep the cost down.

How much can you borrow and at what age?

How much you can borrow depends mainly on your age and the value of your home. The older you are, the higher the percentage of the home's value you can release — because the lender expects the loan to run for fewer years before the house is sold. With Heartland Bank, the maximum percentage by the age of the youngest borrower runs as follows. ¹

So a 65-year-old with an $800,000 home could borrow up to around $200,000, while a 90-year-old could release up to half the value. These are maximums, not targets. In practice borrowers tend to draw far less: as at 30 June 2024, Heartland Bank's average initial reverse mortgage loan-to-value ratio at origination was just 11.5%. ⁸ Drawing conservatively leaves more equity intact, which gives the compounding interest less to work on.

How does compounding interest erode your equity over time?

This is the part that does the most damage, quietly. Heartland's reverse mortgage is a floating-rate-only product — no fixed terms and no early-repayment penalties — and interest is calculated monthly and added to the loan balance, so it compounds. ⁵ NZ reverse-mortgage rates have generally sat in roughly the 7%–9.5% p.a. range, materially higher than a standard home loan, reflecting the added risks and the small, uncompetitive market. ⁵

Because the interest compounds and you are not paying anything off, the debt grows faster each year. A useful rule of thumb (the "rule of 72") is that a balance growing at about 8% a year roughly doubles every nine years. ⁷ So a $100,000 draw at 8% becomes around $200,000 after nine years and roughly $400,000 after eighteen, before any fees. The Retirement Commission's plain caution is that reverse mortgages suit people who do not need to preserve home equity for future uses or bequests. ⁷

Whether your equity actually falls depends on a race between two things: how fast the debt compounds, and how fast (if at all) your home's value rises. The chart below illustrates that race on a $100,000 draw.

How a reverse mortgage debt grows on a $100k draw (illustration)

Source: illustrative, based on Sorted reverse-mortgage compounding examples and the rule of 72. ⁷ Projections are illustrations based on stated assumptions, are not predictions, and actual results will differ. Assumptions: $100,000 initial draw, 8% p.a. compounding, no further drawdowns or fees added; $800,000 home growing at 3% p.a. Source Sorted / Retirement Commission, dated 11 May 2025.

In this illustration the home still has equity left after twenty years, because modest price growth outpaces the debt on a single small draw. But notice the debt has more than quadrupled, and a larger draw, a higher rate, or flat house prices would erode the remaining equity much faster. That is the trade-off in one picture: you get money now, your family gets less later.

Fees add to it. Setup and valuation costs are typically added to the loan balance, so they compound too. Heartland generally uses an online valuation model (IVAL) costing $17.14 to the client; where a full registered valuation is needed (rarer), it is quoted by the valuer and can run from about $600 to $1,000+. ⁶

What protections exist (no-negative-equity, lifetime occupancy)?

The headline protection is the no-negative-equity guarantee. This means you, or your estate, will never have to meet a shortfall if the loan balance ends up larger than the eventual sale price of the house. ² Even if the debt compounds for decades and the housing market falls, the lender cannot come after your other assets or your family for the difference — the most you can lose is the home's value.

Alongside that, these loans generally carry a lifetime occupancy right: you can stay living in your home for as long as you choose, and the loan does not fall due simply because the balance has grown. Repayment is usually triggered only when you sell, move permanently into care, or die.

These protections are genuine and important. They are not a reason to ignore the cost, though. The no-negative-equity guarantee protects you from owing more than the house is worth; it does nothing to stop compounding interest from consuming the equity within the house. You can be fully protected and still leave behind far less than you expected. Always read the specific loan terms and conditions, including what counts as moving out and the conditions attached to occupancy.

How does it affect your estate and your kids' inheritance?

Directly. Whatever is owed — the original draw plus all the compounded interest and capitalised fees — is repaid from the sale of the home when you leave it. What is left over goes to your estate. So the larger the debt has grown, the smaller the inheritance.

Going back to the illustration above, a $100,000 draw that compounds to around $466,000 over twenty years means roughly $466,000 less passes to your beneficiaries (or your other assets) than if you had not borrowed. ⁷ For some families that is an acceptable trade for a more comfortable retirement, and the Retirement Commission's own framing is that these products suit people who do not need to preserve equity for a bequest. ⁷ For others, where leaving the home to children matters a great deal, it is a serious drawback.

The practical step many people take is to talk it through with family before committing, so the people who would otherwise inherit understand the trade-off and are part of the decision. It is general information only here — the legal and estate-planning side should involve a solicitor.

What are the alternatives — downsizing, drawdown, the care loan?

A reverse mortgage is one way to turn home equity into cash, but it is rarely the only one. The main alternatives:

For many people, downsizing frees up more usable capital than a reverse mortgage and avoids compounding interest altogether — though it means moving and paying transaction costs twice. We compare the two in downsizing the family home to fund retirement. Drawing on other savings, including KiwiSaver, is often the cheapest option simply because there is no interest to pay; coordinating those sources is covered in combining KiwiSaver with other savings in retirement.

If the real question is whether to keep carrying a mortgage into retirement at all, see retiring with a mortgage or renting in NZ. And if some of your home equity may eventually be needed for long-term care, the asset-test rules matter — see Residential Care Subsidy asset thresholds in NZ.

Smiths Financial does not provide advice on mortgages, reverse mortgages, or legal and conveyancing matters. This is general information only — please consult an appropriately authorised professional for those.

When does a reverse mortgage actually make sense?

There is no universal answer, but a reverse mortgage tends to suit some situations more than others. It can be worth considering for people who are strongly attached to their home and do not want to move, who need extra cash for living costs, repairs or medical expenses, who have limited other savings to draw on, and who are comfortable that the inheritance they leave will be smaller as a result.

It tends to fit less well where leaving the home or a large bequest to children matters a great deal, where the amount needed is modest and could come from downsizing or other savings instead, or where the person is relatively young at the time of borrowing — because the loan then has more years to compound. Borrowing conservatively (as most Heartland customers do, at an average 11.5% loan-to-value at origination ⁸) and only when needed keeps the eventual cost down.

The honest position is that a reverse mortgage is a useful tool for a specific problem — being asset-rich, cash-poor, and wanting to stay put — but an expensive one. It is worth weighing properly against downsizing and drawing on other savings before committing, because the differences in lifetime cost can be very large.

Frequently asked questions

How much can I borrow with a reverse mortgage in NZ?

It depends mainly on your age and your home's value. With Heartland Bank, the main NZ provider, the maximum runs from about 15% of the home's value at age 55 and 20% at 60, rising with age to 50% at 90. ¹ These are maximums — in practice borrowers draw far less, with Heartland's average initial loan-to-value just 11.5% at origination. ⁸

What interest rate do reverse mortgages charge?

NZ reverse-mortgage rates have generally sat in roughly the 7%–9.5% p.a. range, materially higher than a standard home loan because of the added risk and the small, uncompetitive market. ⁵ Heartland's product is floating-rate only, with interest calculated monthly and added to the balance so it compounds, and no early-repayment penalties. ⁵ Rates change over time.

Could I end up owing more than my house is worth?

No. NZ reverse mortgages carry a no-negative-equity guarantee, meaning you or your estate will never have to meet a shortfall if the loan balance ends up larger than the eventual sale price of the home. ² The most you can lose is the home's value — but compounding interest can still consume most of the equity within it.

Does a reverse mortgage affect my NZ Super?

No. A reverse mortgage drawdown is a release of your own equity, not income, so it does not affect your NZ Superannuation entitlement or the tax rate on your super. ⁹ NZ Super continues to be paid as normal. The position can differ for the Residential Care Subsidy, where converting an exempt home into countable assets can matter — check the current rules.

How fast does the debt grow?

Because interest compounds and nothing is repaid, the debt grows faster each year. As a rough guide, at about 8% p.a. a balance roughly doubles every nine years (the rule of 72). ⁷ So a $100,000 draw becomes around $200,000 after nine years and roughly $400,000 after eighteen, before fees — which are also added to the balance and compound. ⁶⁷

Who offers reverse mortgages in New Zealand?

In practice only two providers materially offer them: Heartland Bank, the clear market leader through its Seniors Finance division, and SBS Bank. ³ Heartland's reverse mortgage book in NZ has reached about $1.15 billion, with an average loan of $147,446 and an average borrower age of 73. ⁴

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 to provide financial advice on personal risk insurance, health insurance, general insurance, KiwiSaver and managed funds, and is a member of the Financial Dispute Resolution Service (FDRS), a free and independent dispute resolution scheme. Smiths Financial does not provide advice on mortgages, reverse mortgages, or legal or conveyancing matters. Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 11 May 2025.