Student Loan Interest Deduction Calculator
Estimate the student loan interest deduction with the $2,500 cap, 2026 MAGI phaseout, Form 1098-E interest, additional eligible interest, employer assistance exclusions, 529 double-benefit rules, dependency checks, and federal tax savings.
Last Updated: May 25, 2026
Use 2026 for returns filed in 2027. 2025 is included for current filing and comparison.
Married filing separately taxpayers cannot claim this deduction.
Use MAGI before subtracting student loan interest. Publication 970 has the full worksheet adjustments.
Lenders generally issue Form 1098-E when they receive $600 or more of student loan interest.
Use for eligible interest not included on Form 1098-E, such as certain loan origination fees or capitalized interest.
Amounts excluded from income as employer educational assistance cannot also create this deduction.
Avoid double-counting interest treated as paid with tax-free 529 plan benefits.
Exclude interest on nonqualified loans, refunded expenses, or amounts used for another tax benefit.
Used only to estimate federal tax savings from the above-the-line deduction.
Optional state conformity estimate. Enter 0 if your state does not conform or you want federal-only savings.
You must be legally obligated to pay the interest.
Loans from related persons or certain employer plans do not qualify.
The loan must have been used only for qualified higher education expenses.
The student generally must have been enrolled at least half-time in a degree, certificate, or similar program.
Most accredited colleges, universities, vocational schools, and other institutions eligible for federal student aid qualify.
The person must have been your spouse or dependent when the loan was taken out.
If another taxpayer can claim you as a dependent, you cannot claim the deduction.
Interest on a loan from a related person does not qualify.
Deduction Status
Partially deductible after MAGI phaseout
Allowed Student Loan Interest Deduction
$1,667
Estimated Federal Tax Savings
$367
Total Estimated Tax Savings
$450
Deduction worksheet
- Form 1098-E interest
- $3,200
- Additional eligible interest
- $0
- Excluded or double-benefit interest
- $0
- Qualified interest before cap
- $3,200
- $2,500 cap result
- $2,500
MAGI phaseout
- MAGI tested
- $90,000
- Phaseout starts
- $85,000
- Fully phased out
- $100,000
- Phaseout percentage
- 33.33%
- Phaseout reduction
- $833
Disallowed by cap
$700 of qualified interest is above the annual $2,500 deduction cap.
After-tax interest cost
Estimated after-tax cost of eligible interest is $2,750 after modeled federal and state savings.
Schedule 1 planning
This is an above-the-line adjustment, so you do not need to itemize to benefit from the deduction.
Eligibility and records
The inputs pass this calculator's core eligibility checks. Keep Form 1098-E, loan servicer statements, proof of who was legally obligated, qualified education expense records, enrollment records, employer assistance records, 529 records, and Publication 970 worksheet support.
MAGI phaseout reduced the deduction before applying the tax-savings estimate. Final treatment can change with exact MAGI worksheet adjustments, state conformity, amended Forms 1098-E, education assistance, loan refinancing facts, and complete return details.
Important Disclaimer
This calculator provides estimates for informational purposes only and does not constitute tax, legal, or financial advice. Tax laws are complex and change frequently. Consult a qualified tax professional for advice specific to your situation. CalculatorWallah is not responsible for any decisions made based on calculator results.
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How To Use The Student Loan Interest Deduction Calculator
Step 1: Choose year and filing status
Select 2026 or 2025 and your filing status so the calculator applies the right phaseout range.
Step 2: Enter MAGI before the deduction
Use modified adjusted gross income before subtracting student loan interest. Publication 970 has the full worksheet adjustments.
Step 3: Add interest paid
Enter Form 1098-E interest, additional eligible interest, and amounts that must be excluded to prevent double benefits.
Step 4: Confirm eligibility
Check legal obligation, qualified student loan, qualified expenses, eligible student, eligible school, dependency, and related-party loan rules.
Step 5: Review deduction and savings
Compare the $2,500 cap, MAGI phaseout reduction, allowed deduction, estimated tax savings, and documentation notes.
How This Calculator Works
The calculator starts with qualified interest paid during the year, then subtracts amounts that should not be double-counted, such as tax-free employer student loan assistance, 529 tax-free treatment used for interest, and nonqualified or reimbursed amounts.
It caps the deduction at $2,500 before applying the annual MAGI phaseout. For 2026, the non-joint phaseout remains $85,000 to $100,000, while the married filing jointly phaseout is $175,000 to $205,000 under IRS Revenue Procedure 2025-32.
The result estimates the above-the-line deduction, federal tax savings, optional state savings, and after-tax interest cost. It also flags common disqualifiers such as married filing separately, being claimable as a dependent, related-person loans, and nonqualified education expenses.
Student Loan Interest Deduction Guide: 2026 MAGI Phaseout, Form 1098-E, Publication 970, And Schedule 1
The deduction is above the line
Student loan interest is an adjustment to income, not an itemized deduction. IRS Topic 456 says you do not need to itemize to claim it. That makes the deduction useful for taxpayers who take the standard deduction, as long as they meet the loan, filing status, dependency, and MAGI rules.
The maximum federal deduction is $2,500 per return. Paying more than $2,500 of qualified interest can still matter for cash flow, but the excess does not produce more federal student loan interest deduction.
2026 student loan interest deduction phaseout
| Filing status | Phaseout starts | Fully phased out |
|---|---|---|
| Single, head of household, qualifying surviving spouse | $85,000 MAGI | $100,000 MAGI |
| Married filing jointly | $175,000 MAGI | $205,000 MAGI |
| Married filing separately | Not eligible | Not eligible |
What counts as qualified student loan interest
A qualified student loan is a loan taken out solely to pay qualified higher education expenses for you, your spouse, or a person who was your dependent when the loan was taken out. The student must have been an eligible student, and the expenses must relate to an eligible educational institution.
Form 1098-E is the usual starting point because lenders generally issue it when they receive $600 or more of student loan interest. Publication 970 also discusses items such as certain loan origination fees and capitalized interest, which is why this calculator includes an additional eligible interest field.
Common reasons the deduction is lost
Married filing separately taxpayers cannot claim the deduction. A taxpayer who can be claimed as someone else's dependent also cannot claim it. Interest on a loan from a related person does not qualify, and the loan must not be from a qualified employer plan.
Double benefits also matter. If interest was effectively paid with tax-free employer student loan assistance, tax-free 529 treatment, a reimbursement, or another excluded benefit, that same interest should not be used again for the student loan interest deduction.
MAGI planning can change the result
The phaseout uses modified adjusted gross income before the student loan interest deduction. Publication 970 has a worksheet for taxpayers with foreign earned income exclusion, American Samoa exclusion, Puerto Rico-source income exclusions, and other adjustments. A small MAGI change near the phaseout range can change the deduction.
For broader planning, pair this calculator with the Taxable Income Calculator to see how the deduction changes taxable income, and the Federal Income Tax Calculator to estimate bracket-level savings.
Records to keep before filing
Keep Form 1098-E, loan servicer interest statements, proof of payments, refinancing records, proof that you were legally obligated on the loan, enrollment records, qualified education expense records, employer assistance documents, 529 distribution records, and your Publication 970 worksheet support.
Keep the research moving with Taxable Income Calculator, Federal Income Tax Calculator, American Opportunity Credit Calculator, and Lifetime Learning Credit Calculator.
Frequently Asked Questions
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- 1.IRS Topic No. 456 - Student Loan Interest Deduction(Accessed May 2026)
- 2.IRS Publication 970 - Tax Benefits for Education(Accessed May 2026)
- 3.IRS Revenue Procedure 2025-32 - 2026 Inflation Adjustments(Accessed May 2026)
- 4.IRS - About Form 1098-E, Student Loan Interest Statement(Accessed May 2026)
- 5.IRS - Publication 525, Taxable and Nontaxable Income(Accessed May 2026)