How often do you think a freelancer needs to increase his charges?

[Btaliat]

It is certain that freelancers will increase charges. But how often? In order not to be incessant, it is better if the freelancers increase the charges only when there is a need to. In fact, the clients should know that the increment is justifiable. The situation of the economy should be the major consideration before increasing. And freelancers must make sure that the increment match the value. What do you think about this? Share it in the comment section below for others to know.