Goods and Services Tax (GST) is a margin item on a New Zealand development, not a pass-through. On a new build sold to an owner-occupier you generally hand three twenty-thirds of the price to the Inland Revenue Department (IRD), you claim back the GST buried in your construction and consultant invoices, and the net of those two numbers is a real cost sitting between your top line and your profit. The rate is 15%, higher than Australia’s 10%, but there is no margin scheme and no stamp duty, and land sales between registered parties are often zero-rated rather than taxed. Get the treatment wrong and you can overstate a margin by six figures.
This guide is written for the developer working out how GST actually lands on a New Zealand deal: when you must register, whether your sale is standard-rated, zero-rated or exempt, what you can claim back, how compulsory zero-rating changes a land purchase, and how the tax hits your cashflow. It also flags where the New Zealand rules differ from Australia, for developers operating on both sides of the Tasman. None of this is tax advice, the treatment turns on your facts, and rates and rules change, so read it as a way to frame the questions you take to your adviser and confirm against a current primary source.
How does GST actually hit a New Zealand development margin?
GST hits your margin as the gap between what you collect on sales and what you claim back on costs. On a standard-rated sale the GST included in the price is three twenty-thirds (3/23) of the total, because the 15% rate sits inside a GST-inclusive price. Against that, you can generally claim the GST included in your development costs. What you send to the Inland Revenue Department (IRD) is the difference, and that difference is money that never reaches your profit line.
Take a small project. You build four townhouses and sell them to owner-occupiers for $850,000 each, a total of $3,400,000. Because these are new builds sold to buyers who are not registered, each sale is standard-rated, so the GST inside your sales is 3/23 of $3,400,000, which is $443,478. Your construction, professional fees and other standard-rated costs come to $1,955,000 including $255,000 of GST, which you claim back. You bought the land for $900,000 from a private seller who was not registered, so at first glance there is no GST in the price to recover. Your net GST payable looks like $443,478 less $255,000, which is $188,478 remitted to the Inland Revenue Department (IRD).
That $188,478 is the point. Developers who model on gross sale prices and forget the tax flatter the deal. The figure a feasibility should carry as revenue is the Gross Realisation Value (GRV) net of GST, here $2,956,522, not the $3,400,000 on the price list. Cost lines cut the other way: you model them net of the GST you will recover. The habit that keeps a model honest is to hold every line consistently, either all excluding GST or all including it, and to treat the net GST position as its own line rather than smearing it through revenue and costs. And as the next sections show, the land in this example may in fact carry a recoverable second-hand goods GST credit, which changes the arithmetic again.
Do you have to register for GST as a developer in New Zealand?
You must register for GST once your turnover from a taxable activity reaches $60,000 in any 12-month period, and a single development project almost always clears that on its own. The Inland Revenue Department (IRD) registration rules set the threshold at $60,000 of turnover in the last 12 months, or that you expect to reach in the next 12 months, and you generally have 21 days to register once you cross it. The $60,000 figure has applied since 2009, so it is not a number that shifts year to year, but it is worth confirming before you rely on it.
The threshold is only half the test. You also have to be carrying on a “taxable activity”, which is the New Zealand equivalent of the Australian “enterprise” concept. Buying land to develop and sell at a profit is generally a taxable activity, and even a one-off project can qualify. The harder case is a subdivision. The Inland Revenue Department (IRD) sets out in QB 24/04, on when a subdivision project is a taxable activity, that whether a subdivision is “carried on continuously or regularly” turns on factors like scale, the work involved, borrowing, and how commercial the project is. A large multi-lot subdivision with civil works and finance is generally a taxable activity; carving one lot off the back yard generally is not. Because the answer decides whether GST applies to your eventual sales and whether you can claim GST on the works, it belongs in the feasibility, not in a post-completion surprise.
Registration matters to your margin because it is the switch that turns on GST credits. Until you are registered, you cannot claim the GST on your land, your consultants or your construction. You can register voluntarily below the $60,000 threshold, and most developers do so early to start recovering GST on acquisition and design costs rather than carrying them. Register late and the Inland Revenue Department (IRD) can still assess GST on your sales from the date you were required to register, so late registration is a way to carry the liability without the credits.
Is your sale standard-rated, zero-rated, or exempt?
Every property sale falls into one of three GST buckets, and which one you land in decides both what you charge and what you can claim. New Zealand uses “standard-rated”, “zero-rated” and “exempt”, where Australia uses “taxable”, “GST-free” and “input taxed”, but the logic runs the same way. The Inland Revenue Department (IRD) overview of GST and land collects the detailed rulings behind each bucket.
A standard-rated sale carries GST at 15% and lets you claim the GST on the costs of making it. A new build sold to an owner-occupier is the developer’s usual home here.
A zero-rated sale carries GST at 0% but still lets you claim the GST on your costs. Land sold between two registered persons for taxable use is compulsorily zero-rated, covered in its own section below. This is the favourable bucket, because you charge no GST yet keep your credits.
An exempt sale carries no GST and strips the related credits. Residential rent is exempt, and so is the sale of a dwelling you have rented long enough, covered below. If a supply is exempt, the GST on the costs tied to it is a genuine cost, not something you recover.
The practical read for a developer is that new stock sold to home buyers is standard-rated, which lets you recover the GST on construction, while anything you hold and rent as housing is exempt, which takes those credits away. The line between the two is where most GST errors on New Zealand developments are made.
What happens when you sell a new build to a home buyer?
When you sell a new build to an owner-occupier, the sale is standard-rated and the GST is inside the price. On a $850,000 townhouse, 3/23 of the price, or $110,870, is GST that you remit to the Inland Revenue Department (IRD). The buyer, who is not registered, cannot claim it back, which is part of why new builds tend to price higher than equivalent second-hand homes. The Inland Revenue Department (IRD) guidance on GST and property transactions is blunt that mistakes here are costly and hard to unwind, so the treatment of each lot belongs in the feasibility before you set prices.
Compulsory zero-rating does not apply to this sale, because the buyer intends to live in the home as their principal place of residence and is generally not registered. That is the key modelling split: sell a finished dwelling to a home buyer and it is standard-rated at 15%; sell land or a completed asset to a registered developer or investor for taxable use and it may be zero-rated at 0%. The same physical product can sit in different GST buckets depending on who buys it and what they intend to do with it.
When is residential rent an exempt supply?
Residential rent is always an exempt supply, so you charge no GST on the rent and you claim no GST on the costs of the dwelling. The Inland Revenue Department (IRD) exempt supplies guidance is explicit that GST cannot be charged on the rent for a residential dwelling and a landlord cannot claim GST on dwelling expenses such as maintenance, rates and insurance. Commercial rent is the opposite: standard-rated, with credits available on the outgoings and fit-out.
There is a five-year point that matters if you build to sell and end up holding. The same Inland Revenue Department (IRD) guidance states that where a dwelling is sold as part of a taxable activity and it was rented for at least five years beforehand, the sale is an exempt supply. Sell inside five years and the sale is generally standard-rated; rent for five years or more and the eventual sale can fall out of GST altogether, which also puts the construction credits you claimed at risk of adjustment. For a developer weighing a hold in a slow market, that five-year line is a real fork, not trivia.
How does compulsory zero-rating work when you buy or sell development land?
Compulsory zero-rating (CZR) means a land sale between two GST-registered parties is charged at 0%, not 15%, when the buyer intends to use the land for taxable supplies and not as a principal place of residence. It is the single biggest structural difference between New Zealand and Australian GST for developers, and it usually works in your favour on cashflow. The rule sits in section 11(1)(mb) of the Goods and Services Tax Act 1985, and the Inland Revenue Department (IRD) explains it in full in interpretation statement IS 17/08 on compulsory zero-rating of land.
Four conditions must all be met, tested at the time of settlement, for a land supply to be zero-rated under the Inland Revenue Department (IRD) zero-rated supplies rules:
- the supply wholly or partly consists of land
- both the seller and the buyer are registered for GST
- the buyer intends to use the land for making taxable supplies
- the buyer does not intend to use the land as a principal place of residence for themselves or a relative
Miss any one of the four and the sale defaults to 15%. Meet all four and the parties cannot choose to charge 15% instead; zero-rating is compulsory, which is where the name comes from.
The mechanic exists to stop a fraud pattern where a buyer claimed a GST credit on a purchase the seller never remitted. By zero-rating the transaction, no GST changes hands between developer and developer. For your cashflow that is a positive. Buy a development site from another registered party and you fund no GST on the land, rather than paying 15% at settlement and waiting to claim it back on your next return. On a $3,000,000 englobo site, that is $391,304 of GST you never have to finance in the first place.
Two practical points sit on this. First, the buyer generally has to give the seller a written statement, sometimes called a purchaser’s or nominee’s statement, confirming their registration status and intended use, and that statement is what entitles the seller to zero-rate. Most standard sale and purchase agreements (S&P) carry a GST schedule for exactly this. Second, because the test is applied at settlement, a change in the buyer’s registration status or intended use between signing and settlement can flip the treatment, so the GST clause is not a box-tick. Going concern sales, such as a tenanted commercial building sold with its leases in place, are zero-rated on the same logic when the conditions are met.
Can you claim GST on land bought from an unregistered seller?
Often yes, through the second-hand goods GST credit, even though the seller charged no GST. This is a New Zealand feature that catches Australians out, because in Australia buying from an unregistered private seller usually means no credit at all. Where you buy land from a person who is not registered, and you acquire it for making taxable supplies, the Inland Revenue Department (IRD) rules on claiming GST from non-registered suppliers let you claim a deemed second-hand goods credit. The credit starts at 3/23 of what you paid, the same fraction as if GST had been in the price, and is apportioned to the extent you will use the land for taxable supplies, so on a fully taxable build-to-sell you claim the whole 3/23.
Back to the four-townhouse example. The land cost $900,000 from a private, unregistered seller. If you acquired it for the development, a second-hand goods credit of 3/23 of $900,000, or $117,391, may be available. That drops the net GST in the earlier worked example from $188,478 to $71,087, a swing of $117,391 straight to the funding line. The credit is real money and it is easy to leave on the table, so it belongs in the feasibility rather than being discovered at year-end.
Two limits keep it honest, and each matters at feasibility stage. The current Inland Revenue Department (IRD) interpretation statement on second-hand goods input tax (IS 25/22) sets out the conditions and the associated-person cap. Where you buy from an associate, such as a related company or trust, the credit is limited, generally to the GST originally borne by that associate, so you cannot manufacture a credit by moving land around a group. And the credit follows taxable use, so land bought and then applied to an exempt use, such as long-term residential rental, does not support the same claim.
What GST can you claim back on development costs?
You can generally claim the GST on any cost you incur to make a standard-rated or zero-rated sale, which for a build-to-sell developer means consultants, council and authority charges, construction, and sales and marketing. These credits are the reason a new build is not simply 15% worse off on every invoice. The Inland Revenue Department (IRD) rules on claiming GST let you claim where you are registered, hold valid taxable supply information (the tax invoice), and are buying for taxable use.
The more useful list is where the claim narrows, because each is a place a model built on “claim back all the GST” quietly overstates the recovery:
- Costs tied to an exempt supply are not claimable. Build to rent as long-term housing and the GST on that construction is a genuine cost, not a credit, because residential rent is exempt.
- Mixed-use costs have to be apportioned. Where a cost serves both taxable and exempt use, you claim only the taxable share.
- Small-value items follow a simpler test. Under the Inland Revenue Department (IRD) apportionment and principal purpose rules, goods and services costing $10,000 or less (excluding GST) can be claimed in full or not at all based on their principal purpose, while items over $10,000 are apportioned by fair and reasonable business use.
For a standard build-to-sell development where every lot is standard-rated, the apportionment question is usually simple: costs are wholly for taxable supplies, so the GST is wholly claimable. The apportionment complexity arrives when part of the scheme is held, rented or mixed-use, which is exactly when a flat “recover all GST” assumption stops being safe.
The developer’s GST trap: renting new stock before you sell
If you build to sell but rent the finished stock while you wait for a buyer, you trigger a change of use and may have to repay some of the GST credits you already claimed. This is the trap that catches New Zealand developers in a slow market, and it is worth understanding before you sign a lease on unsold stock. While you intended to sell, your construction costs were for a taxable purpose, so you claimed the GST. The moment you rent the home as long-term residential accommodation, you are making an exempt supply, and the costs are no longer wholly for taxable use.
The Inland Revenue Department (IRD) change-in-use adjustment rules require you to adjust the GST you claimed to reflect the actual taxable and exempt use of the property, period by period, once the use changes. The Inland Revenue Department (IRD) exempt supplies guidance makes the same point specifically for developers: where a developer acquires a property for the principal purpose of making a taxable supply and then rents it out, a change-of-use adjustment may be required. The adjustment is not always the whole credit at once; it tracks how much the property is used for each purpose over time.
Two points soften or sharpen the trap. If you genuinely hold the stock for a dual purpose, renting it while still actively marketing it for sale, the property is treated as partly held for taxable use and the adjustment is smaller than a clean switch to renting, so keep the listing live and keep the marketing evidence. And if you rent continuously for five years or more, the eventual sale becomes an exempt supply as covered earlier, which changes the exit as well as the credits. The lesson for a feasibility is that GST credits are not locked at the moment of construction. They follow what you actually do with the stock, so a hold-versus-sell decision has a GST tail, not only an income tax one.
When does GST get paid, and how does it hit cashflow?
GST is paid on a return cycle rather than withheld at settlement, which is a real difference from Australia. New Zealand has no purchaser-withholding-at-settlement regime for GST, so on a standard-rated sale the full GST-inclusive price lands with you at settlement and you account for the GST on your next return. That is a short piece of working capital, but it also means the money is genuinely yours to remit, not peeled off by the buyer. The trade-off is that you carry the liability until the return falls due, so a run of settlements can leave a lumpy GST payment building against you.
How often you file depends on turnover, per the Inland Revenue Department (IRD) rules on GST accounting basis and filing frequency:
- Six-monthly filing is available if your sales are under $500,000 in any 12-month period, which is rarely a fit for an active developer.
- Two-monthly is the common default, and most development entities sit here.
- Monthly is compulsory once sales pass $24,000,000 in any 12-month period, and is often chosen voluntarily by developers who want their GST refunds on build costs back sooner rather than waiting two months.
Your accounting basis matters too. On the payments basis, available where sales are $2,000,000 or less, you account for GST when cash moves. On the invoice basis, you account when you invoice or are invoiced, even before payment, which can bring a large refund on a progress claim forward but can also bring a GST liability forward on a sale. For a development running large construction drawdowns and staged settlements, the choice of basis and frequency changes when the refunds arrive and when the payments fall due, which is a cashflow question as much as a compliance one. Model the timing in the monthly development cashflow, not just the summary, because the lag between paying GST on construction and recovering it moves your peak funding.
How is GST different in New Zealand versus Australia?
The headline differences are large enough that an Australian developer crossing the Tasman, or a New Zealander looking at an Australian deal, should not assume anything carries over. The rate is higher in New Zealand but several of the mechanics are simpler or more favourable.
- Rate. New Zealand charges 15%, so the GST inside a price is 3/23. Australia charges 10%, so the GST inside a price is one eleventh. The higher rate means a larger GST slice out of every standard-rated sale.
- No margin scheme. Australia lets eligible sales calculate GST on the margin rather than the full price, which can save real money on land bought cheaply years ago. New Zealand has no margin scheme at all, so a standard-rated sale is always 3/23 of the full price.
- No stamp duty. New Zealand has no stamp duty or transfer duty on land, so the duty line that can add many percentage points to an Australian acquisition simply is not there. Australian duty is assessed by each state revenue office and is a real cost in an Australian feasibility.
- Zero-rating instead of settlement withholding. New Zealand zero-rates developer-to-developer land sales through compulsory zero-rating (CZR). Australia instead makes the buyer withhold GST at settlement on new residential sales and pay it straight to the Australian Taxation Office (ATO). Different machinery, aimed at the same fraud risk.
- Second-hand goods credit. New Zealand lets you claim a deemed credit on land bought from an unregistered seller for taxable use. Australia generally gives no credit when the seller was not registered.
The two systems share the core idea, that residential rent is outside GST and strips credits, called “exempt” in New Zealand and “input taxed” in Australia. If you want the Australian side in full, the GST on property development in Australia guide covers registration, the margin scheme and GST at settlement. And note that GST is only one tax on a New Zealand development: how your profit is taxed as income, and whether a resale is caught by the Inland Revenue Department (IRD) land-sale rules for dealers, developers and builders, is a separate question covered in the New Zealand bright-line test guide.
How should GST sit in your New Zealand feasibility model?
GST belongs in a feasibility as its own tracked position, not as a rate smeared across revenue and costs. The cleanest approach is to hold every revenue and cost line on a consistent basis, decide whether you are working excluding or including GST, and carry the net GST payable, being GST collected on sales less credits on costs, as a distinct line that hits cashflow at the right time.
Three habits separate a model that holds up from one that flatters the deal:
- Revenue is net of GST. Your Gross Realisation Value (GRV) should be net of the GST you will remit on standard-rated sales. Modelling on gross prices overstates the return by roughly 3/23 of standard-rated sales.
- Costs are net of recoverable GST. The GST you will claim back is not a cost. The exception is any cost tied to an exempt supply, such as build-to-rent stock, where the GST is a genuine cost. And remember the second-hand goods credit on land bought from an unregistered seller, which reduces the effective land cost.
- Timing is a cashflow item. Refunds on construction arrive on your return cycle, and GST on sales falls due on the same cycle. The lag moves your peak funding, so it belongs in the monthly cashflow.
This is where a purpose-built feasibility tool earns its place over a spreadsheet: carrying the net GST position, GST collected on sales less credits on costs, and its cashflow timing through to the profit and the funding requirement. A tool like Feasly won’t file your GST return with the Inland Revenue Department (IRD) or work out your income tax; it models the GST that flows through the feasibility so the margin you are looking at is after GST, not before it.
GST questions New Zealand property developers ask
Do I charge GST on residential rent? No. Residential rent is an exempt supply, so you charge no GST on the rent and you claim no GST on the costs of the dwelling. Commercial rent is the opposite: standard-rated, with credits available.
Is the sale of a new build to a home buyer subject to GST? Yes. It is a standard-rated sale, so 3/23 of the GST-inclusive price is GST that you remit to the Inland Revenue Department (IRD). The home buyer cannot claim it back.
Can I claim GST on land I buy from a private seller? Often yes, through the second-hand goods GST credit of 3/23 of the price, if you acquired the land for taxable use and did not buy it from an associate. It is a New Zealand feature with no direct Australian equivalent.
What is compulsory zero-rating? Land sold between two GST-registered parties is charged at 0%, not 15%, when the buyer intends taxable use and not to live there. All four conditions are tested at settlement, and where they are met, zero-rating is compulsory.
Does New Zealand have a GST margin scheme like Australia? No. There is no margin scheme, so a standard-rated sale is always 3/23 of the full price, not of the margin.
Is there stamp duty on top of GST? No. New Zealand has no stamp duty or transfer duty on land, unlike every Australian state and territory.
If I rent unsold stock before selling, do I lose my GST credits? A change-of-use adjustment may apply, because renting long-term residential is an exempt supply. Rent for five years or more and the eventual sale itself becomes exempt.
The practical takeaway
GST is a margin item on a New Zealand development, not an afterthought. On a build-to-sell project it takes 3/23 off your standard-rated sales, hands back the GST on your costs, and settles the difference on your return cycle rather than at settlement. The levers that move real money are whether your sale is standard-rated, zero-rated or exempt, whether compulsory zero-rating (CZR) takes the GST out of a land purchase, whether a second-hand goods credit is available on land bought from an unregistered seller, and whether you keep the credits by selling rather than renting new stock. Each of those is a decision best made before you sign, priced into the feasibility, and confirmed against a current primary source and your own adviser rather than a rule of thumb. Model the net position, not the gross, and the margin you are looking at is the one you will actually keep.
This guide is general information for property developers, not tax advice. GST outcomes turn on the specific facts of your project, and the rates, thresholds and rules cited are current at the time of writing but change. Confirm the position with the Inland Revenue Department (IRD) or a qualified adviser before acting.