STUART MCMAHON
ABN details
| ABN | 20 434 661 898 |
|---|---|
| ABN status | Active from 23 October 2026 |
| Entity name | STUART MCMAHON |
| Entity type | Individual/Sole Trader |
| GST | Not registered (cancelled 12 November 2019) |
| Deductible gift recipient | No |
| Main business location | Victoria 3181 · Other businesses in 3181 |
| Suburbs in postcode | Prahran, Prahran East, Windsor |
| Local government area | Stonnington |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| Brainius | Registered · from 2 September 2024 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- Brainius
Names recorded against this ABN in the ABR extract.
Summary
STUART MCMAHON is an Individual/Sole Trader with ABN 20 434 661 898, located in Victoria 3181. The ABN is active since 23 October 2026.
It is not currently registered for GST. It trades under another name: “Brainius”.
It holds one registered business name with ASIC, including “Brainius”.
Postcode 3181 covers Prahran, Prahran East, Windsor in the Stonnington local government area.
Frequently asked questions
What is the ABN of STUART MCMAHON?
The ABN of STUART MCMAHON is 20 434 661 898.
Is the ABN of STUART MCMAHON active?
Yes. ABN 20 434 661 898 is active since 23 October 2026.
Is STUART MCMAHON registered for GST?
No, it is not currently registered for GST, so its invoices should not charge GST.
What business names does STUART MCMAHON use?
Registered business names: Brainius.
Where is STUART MCMAHON located?
Its main business location is in Victoria, postcode 3181.