You can log on to Alipay's corporate tax homepage, find the "Tax Refund" entrance on the "Quota Management" page, and click "Refund Amount". Click "Agree to the agreement and authorize" in the pop-up "Personal Information Authorization" window, fill in the enterprise name and related information, and fill in the taxpayer identification number, legal person and reserved mobile phone number on the tax authorization page. After the information is confirmed, it can be submitted for review.