README.md

abn

validate Australian Business Number. Also validates ACN, ARBN and ARSN

usage:

  npm install australian-business-number

var abn = require('australian-business-number');
//...
var abnStatus = abn('53 004 085 615');
console.log(abnStatus);
// logs { valid: false, suggestion: '53004085616' }

note that same rules applies to ACN numbers are 9 digits where ABN is 11. Verification scheme is the same, 2 leading zeros are added before calculations.

See also

• https://en.wikipedia.org/wiki/Australian_Business_Number
• http://www.asic.gov.au/for-business/starting-a-company/how-to-start-a-company/australian-company-numbers/australian-company-number-digit-check/
• http://softwaredevelopers.ato.gov.au/ABNformat
• http://www.mathgen.ch/codes/abn.html
• tfn - validate TFN
• australian-tax-rate - calculate tax rate based on taxable income