my country's Individual Income Tax Law Amendment (Draft) increases the deduction standard for wages and salaries from the original 800 yuan/month to 1,500 yuan/month  when a person's monthly income is less than 1,500 yuan, no tax is required  when it is higher than 1,500 yuan, the deduction will be reduced  The income after 1,500 yuan is taxed
An official commented on this: the threshold for personal income tax should not be too high, because paying tax is also a right of citizens
When levying personal income tax, all countries in the world deduct the basic living expenses of residents before tax to ensure the reproduction of social labor force.