Modified Adjusted Gross Income (MAGI
Modified Adjusted Gross Income (MAGI) is used by the IRS to determine eligibility for Roth IRA contributions, IRA tax deductions, and ACA health insurance subsidies.
⚙ Input Values
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📐 Formula
💡 Practical Example
$85,000 AGI with $1,500 student loan interest deduction and $3,000 Traditional IRA deduction. - Total Tax Addbacks: $1,500 + $3,000 = $4,500. - Calculated MAGI: $85,000 + $4,500 = $89,500. - Below $146,000 threshold: Fully eligible for maximum $7,000 annual Roth IRA contribution.
📖 About Modified Adjusted Gross Income (MAGI
Modified Adjusted Gross Income (MAGI) is used by the IRS to determine eligibility for Roth IRA contributions, IRA tax deductions, and ACA health insurance subsidies.
To use the Modified Adjusted Gross Income (MAGI) Calculator, enter your Adjusted Gross Income (AGI from Line 11), Student Loan Interest Deduction, Traditional IRA Deduction and other values. The calculator instantly computes Calculated MAGI Amount, Roth IRA Full Eligibility Status (Single) and more. Results update in real time as you change any input — no submit button needed.
How to Use This Calculator
Enter your Adjusted Gross Income (AGI from Line 11) (e.g. 85000 in ), Student Loan Interest Deduction (+) (e.g. 1500 in ), Traditional IRA Deduction (+) (e.g. 3000 in ), and Foreign Earned Income Exclusion (+) (e.g. 0 in ). Results update instantly as you type — no submit button or page reload required. Adjust any value to compare scenarios side by side.
The Formula
MAGI = Adjusted Gross Income (AGI) + Tax Addbacks
Where Tax Addbacks include Student Loan Interest Deduction, Traditional IRA Deduction, Tuition/Fees, and Foreign Earned Income Exclusion.
Worked Example
85,000 AGI with 1,500 student loan interest deduction and 3,000 Traditional IRA deduction.
- Total Tax Addbacks: 1,500 + 3,000 = 4,
500.
- Calculated MAGI: 85,000 + 4,500 = 89,
500.
- Below 146,000 threshold: Fully eligible for maximum 7,000 annual Roth IRA contribution.
Understanding Your Result
Your effective tax rate (total tax ÷ gross income) is what you actually pay — it's typically 8–12 percentage points below your marginal rate for middle-income earners because lower income brackets are taxed at lower rates. Pre-tax contributions to 401(k), HSA, and traditional IRA reduce AGI dollar-for-dollar, which can lower your marginal bracket and phase in deductions that have AGI thresholds. Tax software uses the same underlying IRS formulas — cross-check your result there for final accuracy.
💡 Financial Planning: Expert Principles & Risk Awareness
- All calculations assume fixed rates and idealized conditions. Real-world results vary due to market volatility, inflation, fees, and taxes.
- The Consumer Financial Protection Bureau (CFPB) recommends consulting a certified financial planner (CFP) for decisions involving significant sums.
- Run at least three scenarios: optimistic, pessimistic, and most-likely — to understand the full range of potential outcomes before committing.
- Inflation averages 2–3% annually in the US (Federal Reserve target). Long-term projections that ignore inflation significantly overstate future purchasing power.
- Tax treatment varies widely by account type (IRA, 401k, brokerage), jurisdiction, and income level. Verify tax implications with a CPA before acting.
- Compound interest works for you in savings/investments and against you in debt. The difference of even 1% in rate, sustained over decades, is enormous.
- Emergency funds (3–6 months of expenses) should be established before optimizing for returns — financial security precedes financial growth.
- Financial projections older than 12 months should be recalculated. Interest rates, tax brackets, and market conditions shift materially year to year.
Results are for informational and educational purposes only. Always verify critical decisions with a qualified professional.