HEATHER MCMASTER
ABN details
| ABN | 99 825 380 398 |
|---|---|
| ABN status | Active from 1 July 2003 |
| Entity name | HEATHER MCMASTER |
| Entity type | Individual/Sole Trader |
| GST | Not registered (cancelled 1 July 2018) |
| Deductible gift recipient | No |
| Main business location | New South Wales 2073 · Other businesses in 2073 |
| Suburbs in postcode | Pymble, West Pymble |
| Local government area | Ku-ring-gai |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| WORKINGMATHS | Registered · from 22 September 2003 · NSW |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- WORKINGMATHS
Names recorded against this ABN in the ABR extract.
Summary
HEATHER MCMASTER is an Individual/Sole Trader with ABN 99 825 380 398, located in New South Wales 2073. The ABN is active since 1 July 2003.
It is not currently registered for GST. It trades under another name: “WORKINGMATHS”.
It holds one registered business name with ASIC, including “WORKINGMATHS”.
Postcode 2073 covers Pymble, West Pymble in the Ku-ring-gai local government area.
Frequently asked questions
What is the ABN of HEATHER MCMASTER?
The ABN of HEATHER MCMASTER is 99 825 380 398.
Is the ABN of HEATHER MCMASTER active?
Yes. ABN 99 825 380 398 is active since 1 July 2003.
Is HEATHER MCMASTER registered for GST?
No, it is not currently registered for GST, so its invoices should not charge GST.
What business names does HEATHER MCMASTER use?
Registered business names: WORKINGMATHS.
Where is HEATHER MCMASTER located?
Its main business location is in New South Wales, postcode 2073.