Understanding Modified Adjusted Gross Income (MAGI)
Modified Adjusted Gross Income (MAGI) is a key concept in US tax law. Essentially, it's a way of calculating income that's slightly different from a taxpayer's Adjusted Gross Income (AGI).
To understand MAGI, it's helpful to first clarify AGI:
Gross Income: This refers to all of an individual's earnings within a given year. Sources of gross income can include wages, salaries, tips, interest, dividends, and other forms of income.
Adjusted Gross Income (AGI): This is calculated by taking gross income and subtracting specific deductions allowed by the IRS. Examples of these deductions include contributions to traditional Individual Retirement Accounts (IRAs) and student loan interest payments. AGI can be found on Form 1040 of the US tax return.
MAGI Calculation: MAGI is then calculated by taking the AGI and adding back certain deductions. The specific deductions added back can vary depending on the tax benefit being considered.
Why is MAGI important?
The Internal Revenue Service (IRS) uses MAGI to determine a taxpayer's eligibility for various tax benefits, deductions, and credits. These can include:
Roth IRA contributions: MAGI is a factor in determining both eligibility to contribute to a Roth IRA and the maximum allowable contribution amount.
Traditional IRA deductions: A taxpayer's MAGI influences whether contributions to a traditional IRA are deductible.
Affordable Care Act (ACA) subsidies: MAGI is used to calculate eligibility for subsidies that help individuals purchase health insurance through the ACA marketplace.
Education tax credits: Eligibility for certain education tax credits may be based on MAGI.