According to the Inland Revenue Department (IRD) regulations:
根據稅務局的最新指引﹕

The Inland Revenue Department (IRD) encourages employers to submit the IR56 forms in electronic format. Employers can prepare the required data file by using the IR56 Forms Preparation Tool provided by the Department or develop their own software (“Self-developed Software”) in accordance with the Department’s requirements specification. In the latter case, employers must obtain written approval before they can file the respective IR56 forms in computerized format to the Department by using Self-developed Software.
税務局鼓勵僱主以電子形式提交 IR56 表格。僱主可使用税務局提供的IR56表格擬備工具或以其自 行設計的電腦軟件（“自行設計軟件”）擬備符合其規格要求的資料檔案。僱主如以自行設計軟件擬備及提交電腦格式的IR56表格，必須事先取得税務局的書面批准才可使用。


For existing iMGR/HRone customers, please also provide to us your BR number, where we will complete the IRD registration process on your behalf.
因此本公司會代客戶向税務局作出登記。所以，請你們提供貴司的商業登記號碼，以供税務局作登記之用。