Student Loan Interest Tax Deduction: Income Limits and How to Claim It

The student loan interest tax deduction lets you subtract up to $2,500 of the interest you paid on qualifying education loans from your taxable income each year. It is an above-the-line adjustment, so you can take it without itemizing, and it lowers your adjusted gross income directly. Whether you get the full $2,500, a reduced amount, or nothing depends on your filing status, your income, and the type of loan you borrowed.

Who Can Claim It

You have to meet every one of these conditions:

You are legally responsible for the loan. If someone else pays on a loan that is in your name, the IRS treats those payments as if you made them.
Your filing status is anything other than married filing separately. That one status is disqualifying at any income level.
No one else is eligible to claim you as a dependent. Eligibility alone disqualifies you, even if the other person does not actually claim you.
Your modified adjusted gross income is below the upper phase-out threshold for your filing status.

The student the loan paid for must also have been enrolled at least half-time in a degree or certificate program during the academic period the loan covered.¹

Which Loans and Payments Count

A qualifying loan is one taken out solely to pay higher education costs for you, your spouse, or someone who was your dependent when you borrowed. The loan has to come from a legitimate lender. Loans from a relative or from an employer-sponsored plan do not qualify.²

Qualifying expenses include tuition and fees, room and board, books, supplies, equipment, and other necessary costs such as transportation. Room and board counts only up to the amount the school includes in its official cost of attendance, or the actual charge for on-campus housing if that is higher. The school itself must be eligible to participate in federal student aid programs administered by the U.S. Department of Education, which covers most accredited public, nonprofit, and for-profit post-secondary institutions.³

Refinanced and consolidated loans still qualify, as long as the new loan was used only to pay off original qualifying education debt. If you refinanced for more than your outstanding balance and used the extra money for anything else, interest on the entire refinanced loan becomes ineligible.³

Both required monthly payments and voluntary prepayments count. If you pay when no payment is due, the interest portion still qualifies.¹ Capitalized interest, which is unpaid interest that your lender adds to your loan balance, is also deductible, but only in years when you actually make payments on the loan. In a year with no payments, no deduction for capitalized interest is available.³

Income Limits and the Phase-Out

The $2,500 cap is per return, not per borrower. If you paid less than $2,500 in interest, you deduct only what you actually paid.² Your modified adjusted gross income decides whether you get the full amount, a reduced amount, or nothing.

For the 2025 tax year, the phase-out range for single filers, heads of household, and qualifying widow(er)s runs from $85,000 to $100,000 of MAGI. For married couples filing jointly, it runs from $170,000 to $200,000.³ Below the lower number, you get the full deduction. Above the upper number, you get none. Inside the range, the deduction scales down proportionally based on how far into the range your income falls, and the worksheet in the Schedule 1 instructions handles the math. The $2,500 maximum is set by statute and has not changed, but the phase-out thresholds are adjusted for inflation each year. For 2021, the single-filer range was $70,000 to $85,000 and the joint range was $140,000 to $170,000.

Finding the Interest You Paid

If you paid $600 or more in student loan interest during the year, your lender is required to send you Form 1098-E, the Student Loan Interest Statement. It shows exactly how much interest you paid that lender during the calendar year.⁴

If you paid less than $600, the lender is not required to send the form, but you can still claim the deduction. Pull the number from your servicer’s website or your year-end account statement. If you have loans with more than one servicer, add the interest from each. Keep the documentation in case the IRS asks for it.

One point to watch if you had federal loans during the pandemic: interest on most federally held student loans was set at 0% for all of 2021 under the CARES Act payment pause, so federal borrowers often had little or no interest to deduct that year. Private loans were never covered by the freeze, and interest on them remained deductible throughout.⁵

How to Claim It on Your Return

The deduction goes on Schedule 1 of Form 1040, under “Adjustments to Income.”⁶ The total adjustments carry over to Form 1040 and reduce your adjusted gross income.⁷ Because this is an above-the-line deduction, it works whether you take the standard deduction or itemize. Lowering your AGI can also help you qualify for other income-sensitive tax benefits that have their own phase-out ranges.

Using It Alongside Education Credits

The interest deduction and education credits like the American Opportunity Tax Credit or the Lifetime Learning Credit are separate benefits, and you can claim both on the same return, even for the same student. They cover different costs: the deduction is based on interest paid on old loans, while a credit is based on tuition paid in the current year. The IRS “no double benefit” rule prevents you from using the same dollar of expenses for two credits, but it does not block the interest deduction from running alongside a credit.⁸

Amending an Older Return

If you missed the deduction in a past year, you can amend using Form 1040-X. You generally have three years from your original filing date, or from the April deadline if you filed early, to claim a refund on an amended return.⁹ For most 2021 returns, the original due date was April 18, 2022, which put the amendment deadline at April 18, 2025. That window has closed for the majority of 2021 filers. If you filed on extension or paid tax after the original deadline, your personal deadline may be different, because the three-year clock runs from the later of your filing date or payment date. Keep your 1098-E forms and loan statements with any amendment in case the IRS questions the deduction.

1
Internal Revenue Service. Topic No. 456, Student Loan Interest Deduction
2
Office of the Law Revision Counsel. 26 USC 221 – Interest on Education Loans
3
Internal Revenue Service. Publication 970 (2025), Tax Benefits for Education
4
Internal Revenue Service. About Form 1098-E, Student Loan Interest Statement
5
Congressional Research Service. Student Loans: A Timeline of Actions Taken in Light of the COVID-19
6
Internal Revenue Service. Schedule 1 (Form 1040) 2021
7
Office of the Law Revision Counsel. 26 USC 62 – Adjusted Gross Income Defined
8
Internal Revenue Service. Education Credits: American Opportunity Tax Credit (AOTC) and Lifetime Learning Credit (LLC)
9
Internal Revenue Service. File an Amended Return