The simplest way is to have a function key "wizard" in the tax refund declaration system, and then follow the steps of the wizard step by step. Specifically, when you enter detailed data, when you put the mouse in each box that needs to be filled in, you will see a specific explanation and tell you what this item means. If you have any questions, please call the free technical support number 04 1 1-85865678. If you really don't know how to operate, you can also apply for membership service.