Student Loan Interest Deduction Calculator
Calculate your 2026 student loan interest tax deduction (26 U.S.C. Sec. 221). Up to $2,500/year, phased out by MAGI starting at $85,000 single / $175,000 joint.
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Your Student Loan Interest Deduction
$1,500.00
Estimated • Based on your inputs
Estimated Federal Tax Savings
$330.00
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
The student loan interest deduction under 26 U.S.C. Sec. 221 lets you deduct up to $2,500 of interest paid on qualified education loans each year -- as an "above-the-line" adjustment to income, so you can claim it even if you take the standard deduction. The deduction phases out as your MAGI rises from $85,000 to $100,000 (single, head of household, or qualifying surviving spouse) or from $175,000 to $205,000 (married filing jointly), per the exact method in IRS Publication 970's Worksheet 4-1: multiply your interest (capped at $2,500) by the fraction (MAGI minus the threshold) over the phase-out range, then subtract that result from your deduction. No deduction is allowed at all if you file Married Filing Separately, or if you can be claimed as a dependent on someone else's return. Unlike the $2,500 cap itself (a fixed dollar figure that has never changed since 2001), the MAGI thresholds are adjusted for inflation each year and rounded down to the nearest $5,000 -- this calculator uses the official IRS-published 2026 figures from Revenue Procedure 2025-32.
How to Use This FSA Calculator Calculator
- 1
Enter your information
Input the required values. The calculator is pre-filled with your state's data where applicable — adjust to match your specific situation for accurate results.
- 2
Review default values
Check that the pre-filled state-specific data (tax rates, median values, etc.) matches your local situation. You can override any value to customize the calculation.
- 3
Analyze your results
Review the calculated outputs. Use the breakdown table to understand exactly how each factor contributes to the final result.
- 4
Compare across states
Use the related state calculators linked below to compare results across different states — useful for relocation planning and financial comparison.
Example Calculation
Here's a practical example using this state's data.
The calculator uses state-specific public data and documented estimates where available — including tax rates, median values, and cost benchmarks — to produce a personalized estimate for the inputs you provide.
Result: Results will vary based on your individual inputs. Use this calculator as a starting point, then adjust the values to test different scenarios. The methodology section below explains exactly how each result is calculated.
What Affects Your Results
State-Specific Inputs
Each state has unique rates, fee schedules, and regulatory requirements that can affect results. This page's methodology and source card identify which inputs are sourced, modeled, or user-adjustable.
Income Level
Many calculations are income-dependent due to progressive tax brackets, phase-outs, or income-based eligibility thresholds. Higher income doesn't always mean proportionally higher costs.
Local Variations
State averages may not reflect your specific city or county. Local taxes, fees, and market conditions can vary ±20% from state averages.
Annual Changes
Tax rates, fee schedules, and regulations change. Check the recorded source-review date and verify critical numbers with the relevant agency.
Tips & Best Practices
- Always verify pre-filled values against your actual data. State averages are a good starting point but your situation may differ significantly.
- Run multiple scenarios by adjusting key inputs to see how changes affect your results. This helps with planning and decision-making.
- Compare your results across states using the related calculators linked below — especially valuable if you're considering relocating or doing business in another state.
- Bookmark this page to recalculate periodically as rates change. Check the page source card and review date before relying on a pre-filled value.
- Consult a qualified professional for major financial decisions. These calculators provide estimates based on standard formulas — a CPA or financial advisor can factor in your complete financial picture.
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StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
How much student loan interest can I deduct?
Up to $2,500 per year, or the actual amount of interest you paid, whichever is less -- and only if your MAGI is below the phase-out ceiling for your filing status. This is a $2,500 total cap per return, not per loan or per student.
What are the 2026 income limits for the student loan interest deduction?
For 2026, the deduction begins phasing out at $85,000 MAGI (single, head of household, or qualifying surviving spouse) or $175,000 (married filing jointly), and is completely eliminated at $100,000 / $205,000 respectively. These MAGI thresholds are adjusted for inflation annually (rounded down to the nearest $5,000), unlike the $2,500 maximum deduction itself, which is a fixed dollar amount that has not changed since it was enacted in 2001.
Is the student loan interest deduction refundable, or does it require itemizing?
Neither. It is an "above-the-line" adjustment to income (claimed on Schedule 1, not Schedule A), so you get the benefit whether you itemize or take the standard deduction. But it is a deduction, not a credit or refundable amount -- it lowers your taxable income, and its dollar value to you depends on your marginal tax rate, not a dollar-for-dollar reduction in tax owed.
Can I claim the student loan interest deduction if I file Married Filing Separately?
26 U.S.C. Sec. 221(e)(2) disallows the deduction entirely for Married Filing Separately taxpayers, with no exception. If you are married, you and your spouse must file a joint return to claim any student loan interest deduction.
Can my parents deduct student loan interest they paid on my behalf?
It depends on who is legally obligated on the loan. If your parents are not legally obligated to repay the loan (for example, it is in your name only), they cannot deduct interest they voluntarily pay -- but under IRS rules, you may treat that payment as if you paid it yourself and claim the deduction, as long as no one (including your parents) claims you as a dependent that year. If you can be claimed as a dependent, Sec. 221(c) blocks the deduction entirely, for anyone.
Is the $2,500 student loan interest deduction cap adjusted for inflation?
No. Unlike the MAGI phase-out thresholds, the $2,500 maximum deduction itself is a fixed dollar amount set by statute and has not increased since it was established at that level in 2001 -- so its real value has eroded with inflation over time, even though the income limits that determine who can claim it have risen.
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