Respond to a duty investigation
If you are being investigated by Revenue NSW about a dutiable transaction you must respond by uploading requested documents on the Duties Compliance Portal.
Last updated: 27 May 2026
Investigations are used by Revenue NSW to ensure our customers pay the correct amount of transfer duty, surcharge purchaser duty or landholder duty.
We may investigate compliance issues over the past 5 years.
Learn more about duties investigations and why you may have been selected for one.
Who must respond to an investigation You must respond when you are told by Revenue NSW that you are being investigated.
A Revenue NSW staff member will call you on the phone, if possible, to discuss the investigation.
We will also email you details about the investigation and how to respond using the Duties Compliance Portal (portal).
About the Duties Compliance Portal This is a Revenue NSW website that allows you to:
securely send and store sensitive information we need for the investigation access your Notice of Investigation (notice) transfer your case to a nominated person for actioning, such as a solicitor or another person who is authorised to act on your behalf, and receive notifications from us about requests (all notifications are emailed from dutiesinvestigations@revenue.nsw.gov.au or fhb.compliance@revenue.nsw.gov.au ). User guides are available with detailed instructions on how to use the portal.
Go to the Help Centre on the portal homepage to access the user guides.
What you need to provide Your notice will list all the documents that you must send to Revenue NSW via the portal.
You may need to contact the solicitor, conveyancer or accountant who processed the transaction on your behalf to help gather the requested documents.
The portal accepts PDF files. The file size limit of a document is 50MB.
Examples We may request the following documents:
The endorsed (stamped) instrument, which includes, but is not limited to: Agreement for Sale of Land Agreement for Sale of Business Transfer Trust Deed, and Deed of Variation. Completed Purchaser/Transferee Declaration forms. Certified documents that prove identity and foreign status.Where applicable:
Completed Revenue NSW application forms , inclusive of attachments and supporting evidence. Supporting declarations. International movement records from the Department of Home Affairs. Valuation report (if applicable). Various documents to support the residence requirements in the grant property. Any other document relied upon and relevant to the assessment of duty liability. View the evidentiary requirements required for specific transactions.
Sensitive information We are committed to protecting your personal information.
Please remove any sensitive information from your documents before uploading to the portal.
Sensitive details can be any of the following:
credit card details bank card details bank account numbers tax file numbers, and personal and health information not required for tax administration.
1
Log in to the portal
Log in to the portal with your username and password. Your username is in the investigation email we sent you.
New users must create a password. The instructions below can also be used if you have forgotten your password and need to reset it.
If you attempt to access the portal more than 5 times with an incorrect login, you will be locked out of your account for 60 minutes.
Once you are locked out of your account, you cannot change your password. For assistance, reply to the investigation email we sent you.
Create or reset password Select Forgot your password .
On the Forgot your password? page:
add your username, and select the Reset button. A new Duties Compliance Portal password email will be sent to your address. Select the link in the email.
On the Change your password page:
enter your new password confirm your new password, and select the Change password button. When your new password is created, you will be logged into the portal.
2
Access your Notice of Investigation
On the portal homepage, select the number link under Case number . On the Case page, select View+ under Supporting documents. Select the Notice of Investigation.pdf link (the notice will display in a new window in your browser). We recommend downloading and saving a copy of the notice for your records.
3
Read the notice
Carefully read the notice to understand the:
due date you need to submit the documentstransactions that are under investigation (Attachment A) documents you must upload (Attachment B), and the name and contact details of the Revenue NSW staff member assigned to your investigation. 4
Transfer case (optional)
You can request to transfer your case to a nominated person to represent you in further dealings with Revenue NSW.
On the portal homepage, select the number link under Case number . On the Case page, select the Transfer this case button under Case Details. Enter the name and contact details of your nominated person. Select the red Submit button at the end of Case Details. Revenue NSW will review your transfer request.
If approved your nominated person will be emailed details of the investigation and instructions on how to use the portal.
5
Upload requested documents
On the portal homepage, select the number link under Case number . On the Case page, select the number link under Duties Assessment Number . On the Transaction page select View+ under Supporting documents . Select the Upload Files button to upload documents from your device. You may also drag and drop the file. You may add comments about a document in the Comments column. When all documents are uploaded use the back button on your browser to return to the Case page. Select the red Submit button. A green Case submitted message will appear to confirm we have received your documents.
If you cannot provide all the documents listed in Attachment B, include a document telling us the date when you will be able to upload.
What happens next The Revenue NSW staff member assigned to your investigation will:
review the information you provided, and contact you if more information is needed, outlining when it is due. When the investigation is complete, we will send you a notification via the portal to advise you of the outcome.
Read more about the possible outcomes of an investigation .
If you do not respond If you do not respond to your notice by the due date provided, Revenue NSW will reassess your liability for the relevant transaction based on current information.
This includes making an estimate from data we access from other government agencies.
This new Duties Notice of Assessment may include interest and/or penalty tax .
Penalties for false and misleading information Under the Taxation Administration Act 1996
provide information that is false or misleading, or deliberately avoid our requests for information. The amount of these charges will depend on the outcome of the investigation and the circumstances of any duty’s shortfall.
Read more about interest and penalty tax .
Privacy collection notice The information collected is necessary for Revenue NSW to assess your liability for transfer duty, surcharge purchaser duty or landholder duty.
We will only share your information where required or permitted by law.
You can also request access or correction of your personal information. Read our privacy policy for more details.
Information for solicitors, conveyancers and accountants
Contact us If you are currently being investigated, please contact the Revenue NSW staff member named in your notice.
For general questions about duties, call 1300 139 814 or +61 2 7808 6916 if you are overseas. Staff are available Monday to Friday, 8.30am to 5.00pm AEST (excluding public holidays).
You can also email duties@revenue.nsw.gov.au . You will receive a response within 10 business days.
