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Sell an investment property when its expected return from here, after costs and tax, falls below what the same equity would earn somewhere else. Everything you paid, everything it was once worth, and every year you have already held it are irrelevant to this decision. The only question is what the asset does for you next.
Owners reaching this question tend to arrive with the same background noise. For many leveraged owners, especially in Auckland and Wellington, buy and hold has delivered weak or negative returns in recent years. REINZ's own house price index compounded at 0.6 percent a year over the five years to January 2026, and by BNZ's June 2026 analysis national prices sit about 15 percent below their November 2021 peak in nominal terms and 28 percent below in real terms (inflation adjusted), back near mid-2019 levels. Auckland is down 35 percent in real terms and Wellington 40 percent, while Canterbury, Otago and Southland have made new nominal highs. Owners in those markets are often funding a weekly shortfall on a property worth less than it was in 2021.
Answer these before reading a line of calculations.
Any uncomfortable answer marks an assumption worth quantifying below, and a material failure on return, affordability, tax or looming capital spending can decide the case on its own. Plenty of owners run the same test and hold with confidence.
The old approach rested on tailwinds which cannot repeat on the same scale. Mortgage rates fell from around 20 percent in the late 1980s to around 2 percent by 2021, and reproducing that effect would need them to fall from about 5 percent today to under 1 percent. Household debt rose substantially against disposable income over the same decades, and it starts from a far higher base today.
Leverage only builds wealth where total return, meaning capital growth plus net rent, exceeds the cost of the debt. With growth near zero and borrowing costs above it, the gearing which once multiplied gains now multiplies the shortfall. Forecasts deserve little weight here: the Reserve Bank's late-2024 projection had house prices rising 7.1 percent through 2025, and the outcome was flat. Build the decision on your own numbers.
Most owners measure the wrong thing. Gross yield flatters and weekly cash flow tells half the story. Calculate total return on equity instead: capital growth in dollars, plus net rental cash flow in dollars, divided by the equity tied up. Measure growth from comparable valuations at each end of the period with renovation spending stripped out, and on a principal-and-interest loan treat the principal portion as an owner contribution rather than a cost.
Take a $700,000 property carrying a $400,000 interest-only loan at 5.5 percent, leaving $300,000 of equity. Rent of $500 a week is $26,000, and two weeks of vacancy brings collected rent to $25,000. Allow rates of $3,800, insurance of $2,600, maintenance averaging $3,000 once the lumpy years are smoothed, management of $2,000, and interest of $22,000. Outgoings of $33,400 against $25,000 of rent leave a shortfall of $8,400 a year, about $162 a week from your after-tax salary.
Now add capital growth. Each 1 percentage point is $7,000 on a $700,000 property, or 2.3 percent of your $300,000 equity, so the property needs 1.2 percent growth simply to bring your total return to zero. At 3 percent growth your equity earns 4.2 percent, at 5 percent it earns 8.9 percent, and at zero growth you are losing 2.8 percent a year. That single line does more work than any yield calculation.
To compare fairly, both paths must end in the same currency. Assume selling costs of 4 percent of the price, comprising real estate agent commission including GST, marketing and legal fees, so a sale today at $700,000 nets about $272,000 after repaying the loan. Agency fee structures vary, so replace that 4 percent with written quotes. The $272,000, rather than the $300,000 of equity in your head, is the money you can redeploy.
Put $272,000 into a diversified fund returning an illustrative 5 percent a year after fees and after tax at 28 percent, a shade under the 5.5 percent the Government requires providers to use for an aggressive fund in KiwiSaver projections. Substitute your own expected return and tax rate. Add the $8,400 a year you stop feeding the property, invested at each year end, and the sell path holds roughly $394,000 after five years. For the hold path to match, assuming you would also sell at year five, the property must reach about $827,000, because it too pays selling costs and repays the $400,000 loan. That is capital growth of about 3.4 percent a year, every year, on an index which has delivered 0.6 percent a year over five years.
Price the hold path without selling costs, treating year five as a continuing value rather than a sale, and the hurdle falls to about 2.5 percent. That convention fits only where no sale sits at the end of your horizon, and even then the disposal cost arrives eventually, for you, your estate or your beneficiaries. It also sets unrealised property equity against a fund balance you could spend on Monday.
Rent, costs, interest and growth all sit flat in this illustration and none of them will be, and varying each in turn shows capital growth moves the answer far more than anything else. Matching the fund is also only the starting hurdle. A single geared property carries concentration, liquidity, transaction and capital-spending risks a diversified fund does not, so the more concentrated and leveraged your position, the further above the alternative the property should clear before you accept them.
This is the strongest argument for holding.
Both households start with the same income and the same equity, and the seller keeps the $8,400 the holder pays into the property, so that difference is credited once, to the sell path. On the numbers above, a 10 percent rise lifts the property to $770,000. After selling costs and the loan you hold $339,200, against about $294,000 had you sold and invested. Holding wins by roughly $45,000 in one year, often untaxed where no land sale rule applies. Leverage doing exactly what it is meant to do.
The same leverage runs in reverse with equal force. If the property is flat, selling wins by about $22,000; if it falls 10 percent, selling wins by about $89,000. The full swing between a 10 percent gain and a 10 percent loss is roughly $134,000, about 45 percentage points of your equity, while the same swing in the fund moves that equity by about 18 points. Borrowing has magnified your exposure to house prices by around two and a half times.
Holding is therefore a geared bet on capital growth, and if growth returns strongly you will be glad you stayed. The question is whether you would knowingly place a two and a half times geared bet on one house in one suburb, funded at $162 a week, against a five-year record of 0.6 percent a year. Some owners will, with good reasons. The decision goes wrong when nobody puts it in those terms.
Worth testing yourself on, because the comparison above could be misread as an argument to sell the asset which has done badly and buy the one which has done well. The argument is narrower. The test is a forward hurdle: hold if you believe the property clears about 3.4 percent a year on conservative assumptions. The 5 percent used for the fund sits below the 5.5 percent prescribed for an aggressive fund, so it reflects no assumption about the recent run in share markets.
The five-year record of 0.6 percent is the weakest part of the case. Past returns describe starting yields and valuations rather than future ones, and a market flat for five years can be cheaper rather than worse. Selling property after a drawdown to buy shares after a strong run is the classic way to buy high and sell low.
So decide on the hurdle rather than the history. If the property clears it on your own numbers, hold, whatever the past five years looked like. If a 20 percent fall in share markets would have you switching straight back the other way, the decision was never about the numbers.
A debt-free rental feels safe, and cash-flow positive is often mistaken for a good investment. The test is unchanged. The same $700,000 property with no loan collects $25,000 and spends $11,400, leaving $13,600 before tax and about $9,100 after tax at a 33 percent marginal rate. Sold, it releases about $672,000, which at the same 5 percent after fees and tax produces $33,600 a year. On that matched basis the property must deliver about 3.5 percent capital growth on top of its rent simply to draw level.
The hurdle rises rather than falls when the debt disappears, because clearing the mortgage removes the weekly pain and the rate risk while doing nothing for a net yield under 2 percent. A mortgage-free rental producing modest taxed income and no growth is a large, undiversified and illiquid position doing little work.
The Reserve Bank lifted the Official Cash Rate to 2.50 percent in July 2026, its first increase in more than three years, and signalled further removal of stimulus is likely. Useful context, poor input. Your decision turns on your own refix rate. Fixed mortgage rates are influenced by wholesale rates and bank funding conditions, so they do not move mechanically with the OCR.
Do this instead. Get written one, two and three-year quotes, calculate annual interest under each, then rerun the shortfall with 1 percentage point added. As at August 2026 the major bank servicing test rates sat between about 6.85 and 7.10 percent, well above carded rates, so applying the same margin to your own numbers is sensible. If 1 point turns a manageable shortfall into an unmanageable one, the property is running on a rate assumption rather than its own merits, and it is worth deciding whether to refix or restructure the lending first.
The comparison above already sits after tax on both sides. Capital growth on a rental is generally untaxed outside the land sale rules, the fund return is stated after fees and tax, and rental losses are ring-fenced so they cannot reduce the tax on your salary, which makes the $8,400 shortfall a genuine after-tax cost with no refund attached. Interest is again fully deductible following the end of the limitation rules on 31 March 2025, subject to the loan relating to the rental income and to the tracing standing up where borrowing has been refinanced or partly used privately.
Inland Revenue's rental expense rules confirm your own time spent on repairs is never deductible, so valuing your hours is an economic allowance rather than a tax one. The same rules exclude agent commission and the legal fees of selling, so on an ordinary non-taxable disposal the roughly $29,000 of exit costs comes out of your pocket rather than off your tax bill. Where the sale is itself taxable, ask your accountant.
Carried-forward rental losses also behave less generously than owners hope. A taxable sale may allow excess deductions attached to the property to be used against the sale income and, in some circumstances, other income, though deductions transferred in from another property stay locked and keep carrying forward. Whether you elected the portfolio or individual basis changes the answer again, so ask your accountant what selling does to the balance before you list.
The bright-line test taxes profit on residential property sold on or after 1 July 2024 where the end date falls within two years of the start date. For a standard purchase the clock starts when title transfers to you, generally settlement, and stops when you enter a binding sale and purchase agreement, so an agreement signed at month 23 is caught even if settlement follows months later. Main home use meeting the criteria, inherited property, and certain transfers with rollover relief sit outside the bright-line test, though other land sale rules can still apply when an inherited property is later sold.
Clearing two years settles nothing on its own, and this is where much published guidance goes wrong. Inland Revenue is explicit: other land sale rules still apply if you bought intending to resell, if you have a pattern of buying and selling, or if you or an associate is in the business of dealing, developing or building. Intention is tested at purchase rather than at sale, which is why documenting your original purpose matters years before you list. Inland Revenue publishes a property tax decision tool for working through which rules apply.
Selling does not end a tenancy by itself, and the rules published by Tenancy Services set firm timelines. Where an unconditional buyer requires vacant possession and the tenancy is periodic, you must give at least 42 days' written notice, which can move your settlement date. Where you want the property empty before marketing begins, the notice is at least 90 days, and you must list within 90 days of the tenancy ending. A fixed-term tenancy cannot be ended early merely because the property has sold, leaving a mutual agreement with the tenant, a later settlement, or a sale with the tenancy in place.
You must tell the tenant in writing once the property is listed, and you need their permission for photographs, viewings, valuers and building inspectors. Tenants cannot unreasonably refuse, though they may limit days and times, decline open homes and on-site auctions, and be present throughout.
Decide with evidence. Ask two local agents for expected price and time to sell under both scenarios, then weigh any claimed premium for vacant possession against lost rent, presentation costs and the notice period. Tenanted sales suit investor buyers who value proven income, and vacant sales open the deeper owner-occupier pool. Tell the tenant early and in person, because a cooperative one makes for better viewings.
The calculations above assume a household able to fund $162 a week indefinitely. Most sell decisions begin when something breaks that assumption rather than when anything changes about the building. Hours cut back, a career which has not progressed the way the purchase assumed, a new child, a health event, or capital needed for a business or an opportunity all change what the same property is worth to you.
Of note:
Life stage shifts the weighting rather than deciding it. A leveraged rental suits a long horizon and a salary able to absorb shortfalls, and suits someone drawing down on wealth far less, though an unleveraged high-yield property can still earn its place in retirement. That makes this a different exercise from deciding what to do with an investment property in retirement, and different again from deciding whether to buy one.
Treating this as a yes or no decision is where most owners go wrong, because the middle option is frequently the right one.
Every figure above has a proper source, and an hour of collecting beats a decade of guessing. Assemble two agent appraisals, twelve months of actual rent and expenses, a written refix quote, a builder's report backed by trade quotes for the work it identifies, body corporate minutes, levies and maintenance plan for a unit title, written break fee and agent fee quotes, and your accountant's view. Set a decision date and record the assumptions which would trigger a review. Concentration is the risk owners understate most, because the long-run contest between shares and property in New Zealand is closer than most landlords assume, and a rental deserves the same exit discipline as deciding when to sell a share.
A composite example from our advisory work, figures rounded and details blended across several client situations, shows the pattern. A couple in their late fifties owned a Hamilton townhouse bought in 2021 for a little over $800,000, appraised around $750,000 by the time we met, refixed at a higher rate and draining roughly $250 a week. Their plan was to hold until the value recovered to the purchase price. Holding had genuine arguments: exit costs are expensive to crystallise, the tenants were reliable, and recovery remained possible. Against it stood the weekly drain, a shrinking runway to retirement, and the concentration. We asked one question. Would they buy this exact property today, at $750,000, on these numbers? They sold, repaid the lending, and redirected the equity and the weekly $250 into a diversified portfolio and their own home loan. The question travels further than the example.
"Selling does not create the earlier fall in value. It decides whether this property remains the best use of your capital from today." Nik Velkovski, Private Wealth and Lending Manager at Become Wealth
If the tax position, the retirement timing, or the destination of the proceeds could change your answer, it is worth modelling properly rather than estimating. Our property investment advice covers hold-or-sell analysis on your own figures, including where the money goes next if you do sell. Talk to our team and bring your numbers.
This article is general information which is not intended to provide financial advice of any kind. It does not take your circumstances into account. Nothing in this article constitutes a recommendation to buy, sell, or hold a financial product or other asset. For more information refer to our website terms and conditions, and financial advice provider disclosure.
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