✔ 最佳答案
Normally, you have to apply for a Business Registration Certificate for a business unless this is an exempted business for BR registration. However, if the monthly sales is less than $30,000 or the monthly service income is less than $10,000, you can apply for the exemption for the payment of the business registration fee and levy.
http://www.ird.gov.hk/chi/tax/bre_erp.htm