Gross income in a business refers to the total revenue earned by the business from all sources before any deductions are made for expenses or taxes. It is calculated by adding up all the income generated from sales or services provided by the business.The gross income of a business is an important measure of its financial performance, as it provides an indication of the overall level of business activity and the amount of revenue generated. It is also an essential starting point for calculating other financial metrics, such as net income and profit margin.To calculate the gross income of a business, all revenues from sales, services, and other sources are added together. This can include income from the sale of products, fees charged for services, rental income, interest income, and any other sources of revenue.It is important to note that gross income does not take into account any expenses or taxes incurred by the business. Therefore, it does not provide an accurate measure of profitability. To calculate net income, all expenses and taxes must be deducted from gross income.