Modified Adjusted Gross Income (MAGI) is your Adjusted Gross Income (AGI) with certain items added back, depending on the specific tax benefit being calculated. MAGI is used by the IRS to determine eligibility for many credits, deductions, and contribution limits.
⚠️ Important:
There is no single universal MAGI. The add‑backs differ depending on whether MAGI is being calculated for education credits, IRAs, the Premium Tax Credit, or other provisions.
🧮 How MAGI Is Calculated
MAGI is not shown directly on the tax return. It is computed in steps.
1️⃣ Start with Gross Income
Gross income includes items such as:
- Wages and salaries
- Business or self‑employment income
- Interest and dividends
- Capital gains
- Rental and royalty income
- Retirement distributions
- Alimony (for agreements finalized before 2019)
2️⃣ Calculate Adjusted Gross Income (AGI)
AGI is gross income minus certain “above‑the‑line” deductions, including:
- Traditional IRA contributions
- 401(k) and other retirement contributions
- Health Savings Account (HSA) contributions
- Student loan interest
- Half of self‑employment tax
- Educator expenses
- Self‑employed health insurance premiums
✅ AGI appears on Form 1040 and is the starting point for MAGI.
3️⃣ Add Back Specific Items (VARIES by Benefit)
Each tax benefit defines its own MAGI formula. Common add‑backs may include:
- Tax‑exempt interest (such as municipal bond interest)
- Foreign earned income exclusion
- Foreign housing exclusion or deduction
- Excluded employer‑provided adoption benefits
- Non‑taxable Social Security benefits
📊 MAGI Thresholds for Key Tax Benefits (2025)
| Tax Benefit | Filing Status | MAGI Phase‑Out Range |
|---|---|---|
| Lifetime Learning Credit | Single | $80,000 – $90,000 |
| Married Filing Jointly | $160,000 – $180,000 | |
| American Opportunity Credit | Single | $80,000 – $90,000 |
| Married Filing Jointly | $160,000 – $180,000 | |
| Roth IRA Contributions | Single / HOH | $150,000 – $165,000 |
| Married Filing Jointly | $236,000 – $246,000 | |
| Traditional IRA Deduction (Covered by plan) | Single | $79,000 – $89,000 |
| Married Filing Jointly | $126,000 – $146,000 | |
| Premium Tax Credit (ACA) | All | Based on Federal Poverty Level |
🆕 Recent Updates (OBBBA, Effective 2025)
MAGI‑Based Phaseouts for New Deductions
The following new deductions begin to phase out based on MAGI:
- No Tax on Tips Deduction
- No Tax on Overtime Deduction
Phase‑out begins when MAGI exceeds:
- $150,000 – Single / HOH
- $300,000 – Married Filing Jointly
✅ These deductions are available regardless of whether the taxpayer itemizes.
SALT Deduction Adjustment Based on MAGI
Under OBBBA:
- The SALT cap increased to $40,000 (2025–2029)
- If MAGI exceeds:
- $500,000 (Single/MFJ)
- $250,000 (MFS)
- The deductible amount is reduced by 30% of the excess MAGI
- Deduction will not fall below $10,000
🧠 Planning Tip
Taxpayers near MAGI limits may be able to preserve eligibility by:
- Increasing pre‑tax retirement contributions
- Making HSA contributions
- Using Qualified Charitable Distributions (QCDs) if age‑eligible
- Timing income or deductions carefully
✅ Even a small MAGI change can restore thousands in lost credits.