Adjusted Gross Income (AGI) Calculator

Calculating your AGI requires a two-step process: determining your total gross income and subtracting all qualifying adjustments to income (often called above-the-line deductions). First, aggregate all sources of income such as wages, business earnings, capital gains, unemployment benefits, and taxable interest. The formula is expressed as Gross Income = Wages + Business + Interest + Social Security + Alimony + Capital Gains + Real Estate + Unemployment + State Refunds + Annuity + Awards + Jury Duty + Other Income. Next, sum up your adjustments, including educator expenses, student loan interest, retirement contributions, health savings account (HSA) payments, and self-employment taxes using the formula Total Deduction = Educator + Student Loan + Tuition + IRA + Self-Employment Tax + HSA + Health Insurance + Retirement + Alimony Paid + Moving Expenses + Other Deductions. Finally, your Adjusted Gross Income is computed as AGI = Gross Income - Total Deduction.

Imagine a taxpayer earning a base salary and running a small side venture. Their wage income is $75,000, business income is $15,000, and taxable interest sits at $1,000, bringing their total gross income to $91,000 ($75,000 + $15,000 + $1,000). During the year, they made qualifying above-the-line adjustments: a $4,000 traditional IRA contribution, $500 in student loan interest, and $1,500 for self-employment tax deductions, totaling $6,000 in deductions. Subtracting these adjustments from the gross income ($91,000 - $6,000) yields a final Adjusted Gross Income (AGI) of $85,000, which serves as the foundation for determining their standard or itemized deductions.

Maximizing your above-the-line deductions is one of the most effective ways to lower your AGI without needing to itemize deductions. Contributions to traditional IRAs, health savings accounts (HSAs), and pre-tax retirement plans directly reduce your AGI, which can also help you qualify for income-dependent tax credits like the Earned Income Tax Credit or student loan interest deductions. Always double-check your records for miscellaneous adjustments such as educator expenses or penalty-free early withdrawal penalties to ensure no eligible deduction is left unclaimed.