If you’ve had a letter from Revenue NSW, the State Revenue Office (SRO) in Victoria, or another state’s revenue office telling you your stamp duty assessment is being reviewed, your first reaction is probably somewhere between confusion and mild panic. These letters rarely explain things in plain language, and they almost always ask for more money than you expected to pay.
A big chunk of stamp duty disputes come down to one issue: what was the property actually worth at the time of the transaction? When the state disagrees with the value you (or your solicitor, or the contract) used, you end up needing independent evidence to back your position. That’s where a court valuation comes in — a formal, evidence-based valuation prepared for a formal dispute and designed to hold up under audit, in an objection, and if the matter proceeds to a tribunal hearing.
This article walks through what a court valuation actually is, why stamp duty audits happen, how the objection and review process works across the states, and what to expect if you end up needing one.
Summary
Stamp duty (officially “transfer duty” or “land transfer duty” in most states) is usually calculated on the higher of the purchase price or the market value of the property. When a transaction doesn’t look like a normal arm’s-length sale — a transfer between family members, a transfer into a trust, a related-party sale, or a transaction for little or no cash changing hands — the revenue office will often want independent proof of what the property was really worth.
If they think the declared value is too low, they can raise a reassessment, and that’s usually where a court valuation is needed. A court valuation differs from a standard market appraisal because it’s prepared to withstand formal scrutiny — it sets out the valuer’s methodology, comparable sales evidence, assumptions, and a certification that the valuer is independent of the parties involved.
Key things to take away:
- The objection window is short — generally 60 days from the date of the assessment in most states — so acting quickly matters more than getting a “perfect” response straight away.
- You should generally pay the disputed duty before or while objecting, unless you’ve separately arranged to defer payment, because interest keeps accruing regardless of the dispute.
- A valuation prepared for a bank, an insurer, or a quick online estimate is not the same thing as one prepared for a duty dispute, and revenue offices will usually say so if you try to rely on one.
- If an objection is disallowed, the next step is typically a tribunal — NCAT in NSW, VCAT in Victoria, QCAT in Queensland, and equivalent bodies elsewhere — or, in some cases, the Supreme Court.
- Getting an independent, suitably qualified valuer involved early, rather than after the objection has already been knocked back, generally gives you a stronger position.
What Triggers a Stamp Duty Audit in the First Place
Revenue offices don’t audit every transaction — most standard, arm’s-length purchases go through without a second look, because the contract price is accepted as evidence of value. Audits and reassessments tend to cluster around a handful of situations:
- Transfers between related parties — parents to children, between siblings, or between related companies, where there’s no independent buyer negotiating the price.
- Transfers into or out of a trust, including discretionary trusts and self-managed super funds.
- Transactions for nominal or no consideration — for example, gifting a property or transferring it as part of a family arrangement.
- Corporate reconstructions and landholder duty transactions, where duty applies to acquiring an interest in an entity that holds land rather than the land itself.
- Off-market sales where there’s no comparable listing history to benchmark against.
- Significant gaps between the contract price and the land value shown on council rates notices or the Valuer General’s records.
If your transaction falls into one of these categories, it’s worth assuming the revenue office may ask questions, and preparing accordingly rather than waiting for a letter to arrive.
Court Valuations vs a Standard Market Appraisal
This is one of the most common points of confusion, so it’s worth being direct about it: a bank valuation, a real estate agent’s appraisal, or a quick desktop estimate is not going to satisfy a revenue office if your assessment is under review.
A court valuation (sometimes called a litigation valuation, objection valuation, or duty valuation depending on who’s using the term) is prepared specifically to be used as evidence in a formal dispute, particularly in situations when a formal property valuation is required. It typically includes:
- A clear statement of the purpose of the valuation (for example, “to determine dutiable value under the Duties Act for the purposes of an objection to Revenue NSW”).
- The valuation date, which needs to match the relevant date for duty purposes (usually the contract date or transfer date, not today’s date).
- The methodology used — most residential property is valued using the direct comparison (comparable sales) approach, while commercial, specialised or income-producing property may use the income capitalisation or discounted cash flow approach.
- Detailed comparable sales evidence with adjustments explained, not just a list of nearby sale prices.
- A certification of independence — the valuer needs to confirm they have no conflict of interest and no financial stake in the outcome.
- The valuer’s qualifications, typically membership of the Australian Property Institute (API) as a Certified Practising Valuer, since this is generally what revenue offices and tribunals expect to see.
A market appraisal from an agent, by contrast, is usually a one or two-page opinion designed to help a vendor set a listing price. It’s not independent (the agent generally has a commercial interest in the outcome), it doesn’t apply a consistent, defensible methodology, and it’s unlikely to survive scrutiny from a revenue office assessor, let alone a tribunal member.
The Objection Process: What Actually Happens
The exact process varies slightly by state, but the general shape is consistent across Australia.
1. You Receive an Assessment or Reassessment
This sets out the duty payable and, usually, a brief explanation of why the office has arrived at that figure. If they’ve substituted their own valuation for the contract price, this is usually where you’ll see it.
2. You Lodge a Formal Objection
In most states, including NSW (under the Duties Act 1997 and Taxation Administration Act 1996) and Victoria (under the Taxation Administration Act 1997), you generally have 60 days from the date of the assessment to lodge a written objection. This deadline is applied strictly — late objections require a separate application explaining the delay, and there’s no guarantee it will be accepted.
Your objection needs to set out the grounds you’re relying on and, where the dispute is about value, should be supported by an independent valuation rather than just an assertion that “the number seems too high.”
A practical point that trips people up: you generally still need to pay the assessed duty while you object, unless you’ve made separate arrangements. Interest continues to accrue on unpaid amounts regardless of the objection, so many property owners pay under protest and pursue a refund if the objection succeeds.
3. The Revenue Office Reviews the Objection
The office (Revenue NSW, State Revenue Office Victoria, Queensland Revenue Office, RevenueSA, and so on) will consider your evidence and either allow, partly allow, or disallow the objection. This can take some months, particularly for complex matters.
4. If Disallowed, You Can Seek External Review
This is where it can move to a tribunal. In New South Wales, eligible Revenue NSW decisions concerning duties and other state-revenue matters can be reviewed by the NSW Civil and Administrative Tribunal (NCAT) through its Administrative and Equal Opportunity Division. In Victoria, the equivalent body is the Victorian Civil and Administrative Tribunal (VCAT). Queensland uses QCAT, Western Australia the State Administrative Tribunal (SAT), and South Australia the South Australian Civil and Administrative Tribunal (SACAT).
Alternatively, in most states you can elect to have your objection treated as an appeal directly to the Supreme Court, though this is generally more expensive and is usually reserved for matters involving a significant legal question rather than a straightforward valuation dispute.
At tribunal, the matter is generally reheard fresh on the evidence — both sides can present valuation reports, and it’s common for each side’s valuer to give evidence and be questioned. This is exactly the scenario a properly prepared court valuation is designed for.
Common Misconceptions Worth Clearing Up
“I can just use the council rates notice value.”
Council rates and land tax notices are usually based on the unimproved land value set by the Valuer General for rating and land tax purposes — a different figure, calculated differently, to the market value of the whole property (land plus improvements) used for duty purposes. They’re not interchangeable, and revenue offices know the difference.
“My conveyancer or solicitor can just tell them the value is fine.”
A solicitor can advise you on the legal process and help draft the objection, but they generally aren’t qualified to give valuation evidence. You still need an independent valuer’s opinion if value is in dispute.
“If I ignore it, it’ll go away.”
Duty assessments don’t expire because you didn’t respond. If you miss the objection window without a good reason, you may lose the right to challenge the assessment altogether, and unpaid duty continues to attract interest and potentially penalty tax.
“A valuation done for the bank loan will do.”
As mentioned above, lending valuations are prepared for a different purpose (assessing security risk for a lender) and generally aren’t formatted or evidenced in a way that satisfies a revenue office’s requirements for dutiable value.
What to Look For When Getting a Valuation for a Dispute
If you’re at the point of needing a valuation to support an objection or tribunal matter, a few things matter more than they might for a routine valuation:
- Timing accuracy — the valuation needs to reflect the value as at the correct date for duty purposes, not the current date, which can matter a lot in a rising or falling market.
- Independence — the valuer should have no relationship with the parties to the transaction and should say so explicitly in the report.
- Comparable evidence, not just a conclusion — a one-line opinion of value won’t carry weight; you need supporting sales evidence and reasoning a tribunal member (who isn’t a valuer) can follow.
- Experience with the specific property type — a valuer who mostly does standard residential appraisals may not be the right fit for a commercial landholder duty matter or a complex rural property.
- Willingness to give evidence — if the matter proceeds to a tribunal hearing, the valuer may need to appear and be cross-examined on their report, so it helps to engage someone comfortable with that role from the outset.
Frequently Asked Questions
How long do I have to object to a stamp duty assessment?
In most states, including NSW and Victoria, you generally have 60 days from the date of the assessment notice to lodge a formal objection. Some states allow late objections in limited circumstances, but you’ll need to explain the delay and there’s no guarantee it will be accepted.
Do I have to pay the disputed duty while my objection is being considered?
Generally, yes. Lodging an objection doesn’t pause your payment obligation in most cases, and interest keeps accruing on unpaid amounts. Many people pay the assessed amount and seek a refund with interest if the objection succeeds.
What’s the difference between a stamp duty audit and an objection?
An audit is the revenue office’s own process of reviewing a transaction, which can lead to a reassessment. An objection is the formal process you use to challenge an assessment (whether it came from an audit or a standard assessment) that you disagree with.
Can I represent myself at NCAT or another tribunal?
Yes, self-representation is common in tribunal reviews of revenue decisions, and legal representation isn’t always required. That said, valuation evidence generally still needs to come from a qualified, independent valuer rather than the property owner.
Does every property transfer need a court valuation?
No. Most standard, arm’s-length sales between unrelated parties are assessed on the contract price without any need for an independent valuation. It’s transactions without a clear market price — related-party transfers, trust transactions, gifts — where a formal valuation typically becomes necessary.
Is a court valuation the same in every state?
The underlying principles are similar, but each state has its own Duties Act, its own revenue office, and its own tribunal (NCAT, VCAT, QCAT, SAT, SACAT). Evidentiary expectations can differ slightly, so it’s worth checking the specific guidance published by the relevant office rather than assuming NSW rules apply everywhere.
Conclusion
Stamp duty audits usually come down to a disagreement about value, and that disagreement needs to be resolved with proper evidence, not assumptions. Know your objection deadline, understand that duty is generally still payable while you dispute it, and get an independent, suitably qualified valuation early rather than scrambling for one after an objection has already been knocked back.
If you’re facing a stamp duty audit or need a valuation prepared to withstand scrutiny in an objection or tribunal matter, Sydney Property Valuers can help. You can reach the team on to discuss what evidence your particular situation calls for.