Hearing coming up at NTCAT? Upload your submissions, evidence or form as a PDF, Word document or photo. We print it exactly as uploaded and post it with Australia Post: $10 by regular post, folded, for up to 12 pages, or $20 by Express Post for up to 20 pages, then $0.30 a page, GST included.
Unopost is an independent printing and posting service, not part of NTCAT or the Northern Territory Government. We post what you upload; we can't tell you what to file or whether it meets a deadline.
What NTCAT asks for
NTCAT prefers documents by email, but accepts hard copies by post if you can't send them electronically. When you write to NTCAT about your matter, you must send a copy to the other party and make clear you have. To serve a document on someone by post, NTCAT's service guidelines ask for an Australia Post delivery or tracking receipt as proof.
Your notice of hearing and any directions for your case come first. Read NTCAT's guidance.
NTCAT's postal address
Casuarina (Darwin) registry
NTCATPO Box 41860Casuarina NT 0810Alice Springs registry
NTCATPO Box 1745Alice Springs NT 0870Laid out to type into the Send to fields. Copied from NTCAT's contact page in September 2026: check it's still current before you post.
Posting to the other party
NTCAT leaves it to you to give the landlord, tenant, agent, builder or other party a copy of what you're relying on. Choose Several under Send to and paste NTCAT's address and theirs, so you post it to both with one payment.
Every letter is tracked, and we email you the Australia Post tracking number once it's lodged. Express Post can add signature on delivery for $6, a record of the handover. Whether that's the proof NTCAT needs is up to NTCAT.
Posting to NTCAT before a deadline
Pay by 2:30pm Melbourne time on a business day and it's posted that day, otherwise the next business day. Express Post usually arrives the next business day within Australia Post's network; regular post takes 3 to 7 business days.
Those are Australia Post's estimates, not a guarantee. If the deadline is a day or two away, use Express Post, or lodge online or in person where NTCAT allows it.
What people post for a case at NTCAT
- Application forms, if you can't use NTCAT's online services.
- Submissions, evidence, photos and invoices for the hearing.
- Copies of the same documents for the other party, sent in the same order.
- Letters to a landlord, agent, tenant or builder about the dispute.
What it costs
The same as any letter we post in Australia. No account, minimum or rush fee.
| Item | Price |
|---|---|
| Regular post, folded to fit a letterbox: up to 12 pages | $10 |
| Registered post, regular post signed for on delivery: up to 12 pages | $16 |
| Express Post, flat in a B4 envelope: 20 pages included, then $0.30 for each extra page | $20 |
| Express Post with signature on delivery: 20 pages included, then $0.30 for each extra page | $26 |
| Tracking, colour, double-sided or black-and-white printing, and stapling | Free |
Express Post price calculator
- Express Post, up to 20 pages$20
- Total, incl. GST$20 AUD
Posting to NTCAT: questions
What is NTCAT's postal address?
PO Box 41860, Casuarina NT 0810 for the Casuarina (Darwin) registry, or PO Box 1745, Alice Springs NT 0870 for the Alice Springs registry, as listed on NTCAT's contact page in September 2026.
Can I post documents to NTCAT from overseas?
Yes. Upload from anywhere and pay by card. We print and post it in Australia as a domestic letter, with no international postage.
Is Unopost part of NTCAT?
No. Unopost is an independent printing and posting service. We print what you upload and post it where you tell us. We can't give legal advice or say whether a document meets NTCAT's requirements.
Posting something else in Darwin? Send a letter to Darwin.