AU:ABN
Australian Business Number (ABN) Scheme
Issuing agency: Australian Taxation Office
How to select & enter
- In your Peppol Access Point / SMP, choose scheme AU:ABN (ICD 0151).
-
Enter your Australian Business Number (11 digits), e.g.
51824753556 -
Resulting Participant ID:
0151:51824753556
Select scheme AU:ABN (ICD 0151). Enter your Australian Business Number (11 digits) as the local value — do not repeat the ICD unless the scheme rules require it. Example: 0151:51824753556
Full form: iso6523-actorid-upis::0151:51824753556
Structure
The ABN is an 11 digit numeric identifier. The first two digits are check digits calculated using a modulus 89 of the weighted digits. The first digit of the number is guaranteed to be non-zero by adding 10 to the modulus (so the first two digits range from 10 through to 99). For companies the last 9 digits are identical to their existing Australian Company Number (CAN) which includes a single trailing check digit. For other entities the digits are randomly allocated but are guaranteed to fail the CAN check. This allows the Australian Securities and Investment Commission (ASIC) to continue allocating CAN during a transition period. The valid characters are numeric digits 0-9.
Validation rules
RegEx: [0-9]{11} Check number: mod 89 (weights) * Subtract 1 from the first (left-most) digit of the ABN to give a new 11 digit number * Multiply each of the digits in this new number by a "weighting factor" based on its position as shown in the table below *Sum the resulting 11 products * Divide the sum total by 89, noting the remainder * If the remainder is zero the number is a valid ABN Weight: 10, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19
Display format
It is displayed as follows: -, XX XXX XXX XXX
Usage notes
https://abr.business.gov.au/Help/AbnFormat
Applies in context: Australia