AGI (Adjusted Gross Income)
Total income minus specific adjustments — the gateway number to most deductions and credits.
Why it matters
AGI is calculated on Form 1040 before deductions or credits. Many limits (Roth IRA phase-out, itemized deduction thresholds, capital gains brackets) are based on AGI or a modified version of it.
See also
Educational only — not financial, tax, or legal advice.