As of 1st November 2021, all Australian company directors need to have Director Identification Number (DIN) Important Dates Date you become a director Date you must apply On or before 31 October 2021 By 30 November 2022 Between 1 November 2021 and 4 April 2022 Within 28 days of appointment From 5 April 2022 Before apppointment How to apply There are two stages to the application process: Verifying the director’s identify Linking the director to the business’s ABN In most case