Self-declaration of comprehensive annual income. There are two ways to declare individual tax mortgage: withholding agent declaration and comprehensive income annual self-declaration. The annual self-declaration of comprehensive income means that we can make pre-tax deduction in the annual self-declaration of comprehensive income after submitting the declared special additional deduction information, that is, the taxpayer himself applies for deduction. However, the company needs to declare through the withholding agent, and the monthly salary will be withheld and remitted. It is more troublesome to fill in the company information after we choose.