One of the conditions for applying for tax refund is whether you are a migrant worker, a regular employee or a college student (college students will get a full refund), whether you are legally or illegally residing, and whether you are a China citizen or a Japanese citizen. The applicant's second requirement is to have relatives in China or Japan and provide financial assistance to them. Bought a house in Japan, high medical expenses and so on. Because according to the tax law, you can apply for a refund of income tax and resident tax for five years, and in some places, you can also return national health insurance materials, conservation materials and so on. So the tax refund here is really a considerable income. However, in practice, it is necessary to have relevant tax professional knowledge and experience, and have the professional Japanese ability to communicate with relevant tax authorities in time, so individuals often cannot successfully realize tax refund. There is also good news. If you have been in Japan for more than half a year and decide to return to China for development, you can return the annuity.