Wage is part of income, and a wage is the payment one receives for his work. Income is the overall money one obtains. Wage is money, which is paid either monthly, weekly, tri-weekly, daily, or as per the hour. Income is the money considered from all known sources which could include wages, gifts, interest, bonuses, and dividends. The wage is fixed for each worker, and it may grow over time.
Income cannot be fixed, as it depends upon the varied sources; income someone receives from a specific year may be different from another year. Wage is earned only if a person works. However, a person may have income even if he or she works or not. In wages, there is no gain but an exchange of labor.