Income
Increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in increases in equity, other than those relating to contributions from equity participants.
[F.70(a) Terminology IFRS]
Income is therefore an increase in the net assets of the entity during an accounting period except for such increases caused by the contributions from owners. The first part of the definition is quite easy to understand as income must logically result in an increase in the net assets (equity) of the entity such as by the inflow of cash or other assets. However, net assets of an entity may increase simply by further capital investment by its owners even though such increase in net assets cannot be regarded as income. This is the significance of the latter part of the definition of income.
There are two types of income:
• Sale Revenue: Income earned in the ordinary course of business activities of the entity;
• Gains: Income that does not arise from the core operations of the entity.
For instance, sale revenue of a business whose main aim is to sell biscuits is income generated from selling biscuits. If the business sells one of its factory machines, income from the transaction would be classified as a gain rather than sale revenue.
https://www.tandfonline.com/doi/abs/10.1080/17449480.2012.664395
https://www.tandfonline.com/doi/abs/10.1080/17449480.2010.511892