Expert Corner

What Is Gross Income? Defination, Works, Calculation and Formula

Jul 22, 2025 | By Kailee Rainse

Gross income is the total amount of money a person or business earns before any taxes or deductions are taken out. For a person, it includes things like salary, wages, bonuses, rental income, and investment earnings. It's basically your full income before anything is subtracted.

For a business, gross income (also called gross profit) is the total sales minus the cost of the goods or services sold. It does not include other costs like rent, salaries or utilities. Gross income is important because it’s the starting point for calculating net income and is used for things like taxes and financial planning.

What Is Gross Income?

Gross income is the total amount of money earned by an individual or business before any deductions such as taxes, insurance, or other expenses are taken out. For individuals, gross income includes all earnings such as wages, salaries, bonuses, rental income and investment returns. For businesses, gross income also known as gross profit is calculated by subtracting the cost of goods sold (COGS) from total revenue. It does not include operating expenses like rent, utilities or employee salaries. Gross income is a key figure used to assess financial performance and is the starting point for determining net income and tax liability.

How Gross Income Works?

Gross income represents the starting point for understanding a person’s or a business’s financial earnings. For individuals, it includes all income earned from various sources such as a salary, wages, bonuses, rental payments, dividends and interest before any deductions like taxes or retirement contributions are applied. For businesses, gross income is calculated by subtracting the cost of goods sold (COGS) from total sales revenue. This figure shows how much money the business made from its core operations before accounting for expenses like rent, salaries and utilities. Understanding gross income is important because it helps determine how much tax is owed and how much income is truly being generated before costs and deductions are factored in.

How to Calculate Gross Income

The way you figure out gross income is different for individuals and businesses, although the idea is similar it is about how much money is earned before other costs are taken out.

For Individuals:

Gross income isn't just your salary. It also includes things like:

  • Tips
  • Bonuses
  • Rental income
  • Interest
  • Dividends
  • Alimony
  • Pensions
  • Capital gains (profit from selling things like stocks)

Some types of income, like certain Social Security benefits or gifts, may not be taxed but lenders might still include them when deciding if you qualify for a loan.
When you apply for a loan or credit, lenders usually look at your total income before any taxes or deductions are taken out. This is called your gross income. Sometimes, they may also ask for your adjusted gross income (AGI) which is your income after subtracting certain tax deductions.

For Businesses :

A business finds its gross income by taking the total money it earned from sales and subtracting the cost of making or buying the products it sold.

Simple Formula:
Gross Income = Total Sales – Cost of Goods Sold (COGS)

This shows how much money the business made before paying for things like rent, salaries, or other expenses.
This tells the business how much money it's really making from selling products or services, before subtracting things like rent, salaries, and other expenses.
Businesses might also call this gross margin. If they show it as a percentage (gross profit margin), it's used to measure how profitable their products or services are.
A company can calculate gross income for the whole business or just for a single product, as long as they track income and costs separately for each one.

Gross Income vs. Net Income

Gross Income is the total amount of money earned before any deductions or expenses are taken out.

  • For individuals: It includes salary, bonuses, rental income, and more.
  • For businesses: It's total revenue minus the cost of goods sold (COGS).

Net Income is what’s left after all deductions and expenses are subtracted from the gross income.

  • For individuals: It’s your take-home pay after taxes and other deductions.
  • For businesses: It’s the profit left after subtracting operating costs, taxes, and other expenses.

How to calculate your monthly gross income

Gross monthly income is the total money a person or business earns in one month before taxes or other deductions.
Here are two simple ways to calculate your monthly gross income:

  • Look at your pay stub to find your monthly salary before taxes.
  • Multiply the number of hours you work in a month by your hourly wage.

You can also find it by dividing your yearly salary by 12 months.
These methods work for full-time workers, freelancers, or self-employed people. Remember to include other income like side jobs, investments, or child support.
For businesses, calculate monthly gross income the same way as yearly:
Gross Income = Total Sales (Revenue) – Cost of Goods Sold (COGS), but use monthly numbers instead.

Conclusion

Gross income is the total amount of money earned by an individual or business before any deductions, such as taxes or expenses are made. It serves as a key starting point for understanding overall earnings and is essential for calculating taxes, applying for loans and assessing financial health. By knowing their gross income individuals and businesses can better manage their finances, plan budgets and make informed decisions about their money. Understanding gross income is an important step in achieving financial stability and growth.

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