What is Gross Income?

Gross income includes all income from whatever source derived, unless specifically excluded by law. Under Internal Revenue Code Section 61, this encompasses wages, salaries, tips, commissions, interest, dividends, rental income, royalty payments, alimony (under pre-2019 agreements), business income, capital gains, and pension distributions. Tax-exempt income, such as municipal bond interest, certain life insurance proceeds, and qualified <a href="/calculators/ira" class="text-emerald-600 dark:text-emerald-400 hover:text-emerald-700 dark:hover:text-emerald-300 hover:underline font-semibold transition-colors duration-200">Roth IRA</a> distributions, is excluded from gross income by specific statutory provisions.

For employees, gross income is the amount shown in Box 1 of Form W-2 before any tax withholding. For the self-employed, gross income is total business receipts before deducting business expenses. Gross income is the starting point for calculating Adjusted Gross Income (AGI), which subtracts above-the-line deductions such as retirement contributions, student loan interest, and health savings account contributions.

Lenders use gross monthly income as the denominator in debt-to-income (DTI) ratio calculations. The CFPB requires mortgage lenders to verify and document gross income as part of the ability-to-repay determination under Regulation Z.

Within corporate finance and business accounting, the term 'gross income' is often used interchangeably with 'gross profit,' which represents total revenue minus the cost of goods sold (COGS), before accounting for operating expenses, interest, and taxes. For individual taxpayers, gross income serves as the foundation for determining eligibility for various state assistance programs, child support calculations, and federal student aid through the Free Application for Federal Student Aid (FAFSA). Additionally, the IRS divides gross income into earned income (such as salaries, wages, and self-employment earnings) and unearned income (such as investment dividends, interest, capital gains, and pensions). This categorization is highly significant because earned income is subject to FICA taxes to fund Social Security and Medicare, whereas unearned income is exempt from payroll taxation, though it remains subject to federal income tax.