Gross Income represents either the income of a person or organization before the deduction of the expenses incurred in earning, or income that is liable to tax but from which the tax has not been deducted.
We can also talk about Gross Profit, which represents total sales revenue of an organization, less the cost of the goods sold. The cost of the goods sold includes their purchase price and costs of bringing them to a state to be sold but not the costs of distribution, general administration, or finance costs.
To use either of the above is according to the context of the translation.