I 18 years old, immigrated to the United States, and got a tax refund of 2000 yuan last year. What does this 2000 yuan include? Why give it to me? What's the point?

Did you or your family help you with your tax returns? Then the tax bureau will give you a tax refund according to your tax return. I haven't seen your tax bill. I don't know what it includes. Generally speaking, a portion of tax will be deducted from every salary. Summarize your annual income and tax deductible expenses at the end of the year. Put these together and you'll get the money. You don't have to worry about what is included or what it means. Just give it to you.