What does commission mean when you buy a house, and what does commission mean when you are full of two?

Commission is the agency fee. Buying a house usually looks for an intermediary. Commission is the money given to the intermediary, which is generally 1.5%~3%.

The only meaning of two years is that ordinary houses can be exempted from business tax and individual tax if they are the only real estate for two years. If it is not the only property, it can only be exempted from business tax.