Quick answer
Check your state's deadline first. In NSW, transfer duty is due by the earlier of settlement or three months after the contract, and settlement can't proceed until it's paid. In Queensland, documents are generally due within 30 days of the contract date. If you're short, equity in another property you own is usually the fastest funding route, and late duty attracts daily interest.
Key points
- Duty deadlines are set by each state, and they often land before settlement day
- In NSW, settlement can't proceed until transfer duty is paid in full
- Late duty attracts daily interest from the due date
- Equity in a property you already own is usually the fastest fix
- NSW deadline
- Earlier of settlement or 3 months after contract
- QLD deadline
- Documents within 30 days of the liability date
- Fastest route
- Loan secured by another property
- Enquiry
- No credit check
Stamp duty is the bill that sneaks up on property buyers. The contract’s signed, the finance is lined up, and then the conveyancer asks for a five or six-figure sum by a date that suddenly feels very close.
Plain answer: confirm the deadline your state sets, ask your conveyancer when they need the money, then fund the gap. Equity in a property you already own is usually the fastest route, because duty paid late attracts daily interest and can stall settlement altogether.
When is stamp duty actually due in my state?
Every state and territory sets its own rules, and the deadline isn’t always settlement day. Here’s what two of the busiest revenue offices say right now:
| State | When duty is due | What stops if you’re late |
|---|---|---|
| NSW | Earlier of settlement or 3 months after the contract (or transfer, if no contract) | Settlement can’t proceed and the transfer won’t be registered until duty, interest and penalties are paid |
| QLD | Documents lodged within 30 days of the liability date, usually the contract date; if a self-assessor lodges, duty is paid within 14 days after that | Check with the Queensland Revenue Office |
| Other states and territories | Each revenue office publishes its own rules | Check your state revenue office before relying on a date |
Off-the-plan buyers in NSW may be able to defer for up to an extra 12 months if eligible. That buys time, not a discount.
Your conveyancer or solicitor will usually handle the lodgement. Ask them one simple question: “On what date do you need the duty money in your trust account?” That’s your real deadline.
What happens if I can’t pay the duty on time?
In NSW, Revenue NSW treats overdue duty as a tax debt. The consequences stack up quickly:
- interest accrues daily on the overdue amount, backdated to the due date
- penalties may apply on top
- Land Registry Services won’t register the transfer until it’s all paid
- Revenue NSW escalates with a final notice and then a notice of intended legal action, each giving 14 days
Revenue NSW does offer instalment plans through its Duties Debt Team, and interest keeps running during the plan. Hardship help may be available too, so call early rather than going quiet.
For buyers, the bigger risk is the knock-on effect. If duty isn’t paid, settlement doesn’t happen, and a delayed settlement can trigger extra costs under your contract with the seller. Read our page on the settlement shortfall if the duty is part of a bigger gap.
What’s the fastest way to find money for stamp duty?
It depends on what you already own. Many buyers discover late in the piece that their purchase loan was sized on the deposit they expected to have, so the duty has to come from somewhere else. A valuation that came in low, a deposit still tied up in a sale, or a business account that dipped can all open the hole a week before the deadline.
Here’s the honest pecking order:
- Equity in another property. If you own a home or investment property, a short-term loan secured against it is usually the quickest fix. Property-secured business borrowing covers $20,000 up to $5,000,000, and at the $20k to $250k end, same-day funds may be possible once the paperwork is signed.
- A caveat or second mortgage. When there’s already a first mortgage on the property you own, these can move faster than refinancing. Compare them in our pages on a caveat loan in a hurry and a second mortgage when time is short.
- A trading business buying premises. Cash-flow finance, generally between $5,000 and $500,000 depending on turnover, can sometimes cover duty and costs on a commercial purchase.
- A home buyer with no other property. Your enquiry still gets a proper read and an honest steer, though personal amounts and timing can’t be promised until someone has reviewed it.
When you’ve got the figure and the date, start the 60-second check →.
How do I make sure the money lands in time?
Approval and cash in the bank aren’t the same thing. Our guide to approval versus money in your account explains the gap. For stamp duty specifically, line up these before you enquire:
- The signed contract, showing the contract date.
- Your conveyancer’s settlement statement with the duty figure.
- Statements for any property you’ll offer as security.
- Proof of income: payslips, bank statements, or BAS and financials for a business.
- Your conveyancer’s contact details, so the lender can co-ordinate settlement timing.
Check concessions before you borrow
First home buyer exemptions, concessions for pensioners and off-the-plan deferrals change the number dramatically in some states. Rules shift often, so check your state revenue office directly. Borrowing for duty you didn’t actually owe is the most avoidable mistake on this page.
Buying through a company or trust?
Business and investor purchases often carry extra layers: surcharge duty for some foreign purchasers in certain states, duty on business assets bought alongside the land, or landholder duty when you buy shares in a company that owns property. Ask your accountant or conveyancer to confirm the full duty bill early, because a surprise top-up a few days before settlement is the hardest kind of gap to fill.
Is there anything to avoid when you’re short on stamp duty?
A few things tend to go wrong under deadline pressure:
- Assuming settlement day is the deadline. In Queensland, the trigger is usually the contract date.
- Leaving it to the final week. Secured loans need security documents, and those take time to sign and register.
- Stacking personal credit. Cards and buy-now-pay-later don’t stretch to duty-sized amounts, and the repayments land right when your new mortgage starts.
- Going silent with the revenue office. A phone call about an instalment plan beats a garnishee notice.
Could a short-term loan cover your stamp duty this week?
If the contract’s signed and the duty deadline is close, a quick enquiry is the simplest way to find out whether equity, a caveat or a business facility can bridge the gap.
No credit check is run when you send it. Your file isn’t circulated to every lender in the phone book, and a real human goes through your numbers before phoning you. Give us the accurate duty figure, contract date and security details, so the first suggestion is the right one.
See if you qualify to cover the duty and keep your settlement on schedule.
How it works, step by step
- 1
Tonight
Find the contract date and your conveyancer's duty figure, then check the deadline on your state revenue office website.
- 2
Tomorrow morning
Ask your conveyancer or solicitor exactly when the duty must be in their hands, and whether any concession or deferral applies.
- 3
Tomorrow arvo
If there's still a shortfall, send a 60-second enquiry with the duty amount and the date it's due.
Frequently asked questions
When do I have to pay stamp duty in NSW?
Revenue NSW says transfer duty must be paid by the earlier of settlement or three months after the contract is signed. Eligible off-the-plan purchases may defer payment by up to an extra 12 months, but the amount doesn't change.
When is transfer duty due in Queensland?
The Queensland Revenue Office says transfer documents are due within 30 days of the liability date, which is usually the contract date rather than settlement. If a registered self-assessor such as your solicitor lodges for you, the duty is due within 14 days after that.
What happens if I pay stamp duty late?
In NSW, overdue duty becomes a tax debt, interest accrues daily from the due date, and penalties can apply. The transfer won't be registered until everything is paid, so a late payment can hold up your whole settlement.
Can I get a loan just for stamp duty?
Sometimes. Business buyers and investors with equity in another property can often use a secured loan for the duty and costs. For home buyers, we look at the full picture and point you to the realistic option. There's no credit check when you first enquire.
Can I pay overdue duty in instalments?
Revenue NSW offers debt instalment plans through its Duties Debt Team, though interest continues to accrue while you pay. Other states have their own arrangements, so contact your revenue office early.