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Student Loan Interest Deduction Calculator

Estimate how much of your student loan interest you can deduct from your taxable income for 2026 based on your income and filing status.

Quick answer: Estimate the 2026 student-loan-interest deduction, including an explicit zero result for married filing separately. Enter Student Loan Interest Paid, Modified Adjusted Gross Income, and Filing Status to personalize the estimate. It returns Estimated Deductible Amount so you can compare the impact before choosing a next step. Use it to estimate tax impact, withholding, deduction, bracket, and after-tax cash-flow tradeoffs.

SWReviewed by SwitchWize Research Desk · Last reviewed July 20, 2026
Estimated Deductible Amount
$1,800
Estimated Deductible Amount
$1,800
Diagnostic

At this MAGI, about $1,800 of entered student loan interest is deductible.

The 2026 deduction is capped at $2,500 and phases out above $85,000.

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What to do next

Plan your tax strategy

Your action plan
  1. 1

    Review the risk level and primary pressure point

    Estimate the 2026 student-loan-interest deduction, including an explicit zero result for married filing separately.

  2. 2

    Check the assumptions before using the result for a high-stakes decision

    Assumptions change the answer, especially when rates, taxes, or timing matter.

  3. 3

    Save the result to Money Map or use the linked next action

    Turn the result into a prioritized action instead of treating it as a one-off number.

Plan your tax strategy

This is an educational estimate, not tax, legal, investment, or lending advice. Tax rules, rates, and eligibility change and depend on your full situation. Confirm with a qualified professional or the provider before acting.

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Frequently Asked Questions

Everything you need to know.

What does an example Student Loan Interest Deduction Calculator calculation look like?
Using this calculator's own default assumptions, a student loan interest paid of $1,800, modified adjusted gross income of $75,000 and filing status of Single, head of household, or qualifying surviving spouse produces an estimated estimated deductible amount of $1,800. Enter your own numbers above to see how it changes for your situation.
Why does my filing status affect my deduction?
Filing status determines both the income range over which your deduction phases out and whether you qualify at all. Married couples filing separately face the strictest rules and cannot claim this deduction regardless of income level.
What is modified adjusted gross income and why does it matter?
MAGI is your adjusted gross income with certain deductions added back. The IRS uses MAGI to measure whether your deduction should be reduced or eliminated as your income increases, creating a phase-out threshold that depends on your filing status.
Is the Student Loan Interest Deduction Calculator free to use?
Yes. SwitchWize calculators are free, and you do not need an account to run scenarios or view the result.
Does using the Student Loan Interest Deduction Calculator affect my credit score?
No. Using a calculator does not trigger a credit check. A credit impact can occur only if you apply directly with a lender, card issuer, or provider.
Are the results personalized financial advice?
No. Calculator outputs are educational estimates based on the inputs you enter. Review assumptions and confirm terms directly with providers before making a financial decision.
What should I do after seeing the result?
Use the recommendation module on this page to plan your tax strategy, or run Money Map to compare this taxes decision with your other opportunities.
How does SwitchWize choose related offers?
Related offers are matched by the calculator surface (taxes) and ranked using SwitchWize data such as rate, fees, trust signals, product fit, and switching friction. Paid relationships do not change organic ranking order.
How fresh are the rates and offers shown?
Rate and offer data is reviewed on a recurring cadence and every offer module shows review context or links to the methodology and disclosure pages.
Where can I see the ranking methodology?
The SwitchWize methodology page explains how rate freshness, editorial review, affiliate disclosure, and category ranking factors work.
Can Money Map use this result?
Yes. Money Map is the broader diagnostic path: it compares savings, mortgage, cards, and debt so you can see whether this calculator result is your highest-impact next move.

Why This Matters

The student loan interest deduction reduces your taxable income, lowering your overall tax liability. However, the deduction phases out as your income rises, and it's completely eliminated for married couples filing separately. Understanding your eligible deduction helps you plan your tax strategy accurately.

How to Use It

  1. 1Enter the total amount of student loan interest you paid during the tax year.
  2. 2Input your modified adjusted gross income (MAGI) for 2026.
  3. 3Select your filing status (single, married filing jointly, or married filing separately).
  4. 4View your estimated deductible amount, which shows the portion of interest you can claim.
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