Victoria Off-the-Plan Stamp Duty Concession Explained
Published 11 October 2025
How Victoria's off-the-plan duty concession reduces the dutiable value of a new home or apartment, and what buyers should check before they sign.
Buying a home before it is built changes how Victoria works out the land transfer duty you owe, and understanding the mechanics can help you make sense of a settlement figure that looks lower than you expected. Unlike a completed house, where duty is assessed on the full contract price, an off-the-plan purchase in Victoria can have its dutiable value reduced to reflect the fact that some of the building work has not happened yet at the time you sign. This guide walks through how that concession actually works, not the specific figures involved, since thresholds and rates are reviewed periodically and should always be checked directly with the State Revenue Office or your conveyancer.
How Off-the-Plan Purchases Are Taxed Differently
When you buy an established home, land transfer duty in Victoria is calculated on the full price you agree to pay. An off-the-plan purchase, whether it is an apartment, a townhouse or a house and land package, is treated differently because part of what you are paying for does not exist yet at the date of the contract. The State Revenue Office recognises this by allowing eligible buyers to reduce the value used to calculate duty, rather than taxing the entire contract price as though the building were already complete.
The Contract Price Minus Construction Costs Mechanism
The core mechanism is straightforward in concept even if the paperwork behind it is detailed. Your dutiable value is calculated by taking the contract price and subtracting the construction or refurbishment costs that have not yet been incurred as at the date you sign. In practice this means the earlier you exchange in the build cycle, relative to a project that is only just underway, the larger the deduction is likely to be, because more of the building work still lies ahead. A contract signed close to completion, where most of the construction is already done, will generally see a smaller reduction than one signed off an early release.
Two Ways the Deduction Can Be Calculated
Vendors selling off-the-plan generally choose between two accepted methods for working out the construction cost deduction, and the method chosen affects the figures your conveyancer will see in the sale documentation. One approach applies a set percentage depending on the type of development, while the alternative method relies on the vendor's actual costings for the specific project. You as the buyer do not choose the method, but it is worth asking your conveyancer to explain which one applies to your purchase, since it shapes how the final duty figure is arrived at and what supporting paperwork is lodged with your transaction.
Why the Concession Only Applies to the First Sale
An important limitation is that this concession is only available on the first sale after the plan of subdivision is registered. If you are buying a resale off-the-plan contract, sometimes called a sub-sale, or purchasing a property secondhand after someone else originally bought it off the plan, this concession will not apply to you in the same way. This distinction catches out some buyers who assume any purchase described as off-the-plan automatically qualifies, when in fact eligibility depends on where in the chain of ownership your specific contract sits.
What Counts as Construction Costs Not Yet Incurred
Not every cost associated with a development is treated the same way for this calculation. Broadly, costs genuinely tied to the physical construction or refurbishment work, rather than costs like land value, marketing or finance charges, are what get factored into the deduction. Because the specifics can vary between a house and land package, a strata apartment and a straightforward renovation project, this is an area where relying on a general rule of thumb from a friend's purchase can lead you astray. Your conveyancer working through a off-the-plan purchase should confirm exactly how the figures for your specific contract were arrived at before you rely on them.
How This Interacts With First Home Buyer Concessions
If you also qualify as a first home buyer, the off-the-plan concession does not exist in isolation. It can interact with the separate duty exemptions and concessions available to first home buyers, and in some cases both can apply to the same purchase, which is why the order in which they are calculated matters. We cover the first home buyer side of this in more detail in our guide to Victoria's first home buyer duty exemptions and concessions, which is worth reading alongside this one if you are buying your first home off the plan.
Settlement Timing and Construction Delays
Off-the-plan purchases carry a timing dimension that established home purchases generally do not. Because settlement is usually tied to a certificate of occupancy or registration of the plan of subdivision rather than a fixed calendar date, construction delays can push your settlement date back by months. This does not change how the duty concession is calculated, but it does mean the figures assessed at the time of contract can sit unresolved for longer than a standard purchase, and your conveyancer should keep you updated as the build progresses toward completion.
Working With Your Conveyancer and Getting a Clear Picture
Because eligibility and calculation depend on details specific to your contract and the development itself, this is not an area to work through alone. A conveyancer experienced with Victorian conveyancing will check the vendor's disclosure documents, confirm which calculation method has been applied, and make sure any duty concession has been correctly claimed as part of your settlement. If you are buying in Melbourne, where a large share of Victoria's off-the-plan stock is concentrated, this kind of oversight is particularly valuable given how much apartment and townhouse development runs through pre-completion sales. This article is general information rather than tax advice, and your accountant or conveyancer can confirm how the concession applies to your specific contract. The State Revenue Office's guidance on the off-the-plan duty concession also sets out a working estimate of how the calculation applies before you commit to a contract, worth reviewing alongside professional advice rather than relying on the figure quoted by a sales agent. Getting an independent read on your likely duty position, alongside a review of the contract terms themselves, puts you in a stronger position when deciding whether a particular off-the-plan offer genuinely works for you.
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