Tax refund includes wages, labor services, royalties and royalties. These items are counted together (for example, if your part-time income is less than 60 thousand, it is useless, but if you add up your salary and labor, the deduction is the amount of tax refund). If it's just for tax refund, just wait until March every year to let the APP automatically settle accounts (just fill in the deduction item "Special Additional Deduction" first, and then click Comprehensive Calculation).