The student loan interest deduction, explained

By Tom, CPA · Updated October 27, 2026

Part of: Easy Tax Strategies

TL;DR: You can deduct up to $2,500 a year of interest paid on qualified student loans, whether or not you itemize. For 2026, the deduction phases out between $85,000 and $100,000 of modified AGI for single filers and $175,000 to $205,000 for joint filers. You must be legally obligated on the loan, not be claimed as a dependent, and not file married filing separately.

Educational only, not tax, legal, or investment advice. Examples are illustrations, not predictions. Rules and limits change; verify current figures and talk to a qualified professional about your situation.

Student loans are the souvenir of higher education that keeps on giving, mostly to the lender. The tax code offers a modest consolation prize: up to $2,500 a year of interest is deductible, above the line, so you get it even with the standard deduction. The fine print, though, is where people lose it: income phaseouts, filing status traps, and the question of who actually paid.

Figures for 2026 from IRS Rev. Proc. 2025-32 and Publication 970, checked October 27, 2026. Part of easy tax strategies. For payoff strategy, see student loans and FIRE.

CPA Warning Label: Interest on loans from relatives or employer plans generally does not qualify, and refinancing into a loan that also funded non-education costs can make part of the interest nondeductible.

Eligibility

You can claim the deduction if all of these are true:

• You paid interest during the year on a qualified student loan.
• You are legally obligated to pay the loan (it is in your name, or you are a co-signer).
• Your filing status is not married filing separately.
• No one else can claim you as a dependent.
• Your modified AGI is below the phaseout ceiling.

A qualified student loan is one taken out solely to pay qualified higher education expenses (tuition, fees, room and board, books, supplies and other necessary expenses) for you, your spouse or your dependent at the time the loan was taken out, for an eligible student enrolled at least half-time. Federal and private student loans both qualify. Loans from a related person or from a qualified employer plan do not.

What counts as interest

Lenders report interest of $600 or more on Form 1098-E. You can deduct qualifying interest under $600 too; ask the lender or check your statements. Deductible interest includes:

• Regular interest payments.
• Capitalized interest, as you pay down principal, in many cases.
• Loan origination fees treated as interest, generally over the loan's life.

Interest on refinanced student loans still qualifies, as long as the new loan was used only to refinance qualified student loans. Rolling a car loan or credit card balance into the refi taints the mixed portion. The new 2025 deduction for car loan interest is a separate break with its own rules.

Phaseout

Modified AGI for this purpose is generally AGI with certain foreign income exclusions added back. The reduction is proportional: at a single MAGI of $92,500, halfway through the $15,000 range, you lose half the deduction. Lowering MAGI with pre-tax 401(k), HSA or deductible IRA contributions can restore some or all of it, much like IRA deduction phaseouts.

MFS rule

Married couples filing separately cannot take the deduction at all, under the statute. That matters because many borrowers on income-driven repayment plans file separately to keep the borrower's payment based on their own income. The trade-off: lower loan payments versus losing up to $2,500 of deduction plus other separate-filing penalties. Run both scenarios each year; the separate-filing savings on payments are often larger, but not always.

Who paid

The person legally obligated can deduct interest even if someone else pays it. IRS Publication 970 treats a payment made by a third party, such as a parent paying a child's loan that is in the child's name, as if the third party gave the money to the borrower, who then paid the interest. So:

• Loan in the child's name, parent pays, child not a dependent: the child can deduct.
• Child is still claimed as a dependent: no one can deduct.
• Parent PLUS loan in the parent's name: only the parent can deduct, subject to the parent's phaseout.
• Employer pays: through 2025, up to $5,250 of employer student loan payments could be excluded under an educational assistance program, and the 2025 law made that permanent. Interest paid with excluded employer money cannot also be deducted.

Example

Illustration: Frugal Fran is single with modified AGI of $95,000 for 2026 and paid $3,100 of interest on her federal student loans.

1. Interest eligible, capped: $2,500.
2. Excess over $85,000: $10,000. Phaseout range: $15,000.
3. Reduction: $2,500 × ($10,000 ÷ $15,000) = $1,666.67.
4. Allowed deduction: $2,500 − $1,666.67 = $833.33.

If she adds $10,000 to her pre-tax 401(k), modified AGI falls to $85,000 and the full $2,500 is allowed. At a 22% bracket, the 401(k) contribution saves $2,200 of tax directly, plus $366.67 from the restored student loan deduction ($1,666.67 × 22%), assuming she stays in the 22% bracket. Lavish Larry, earning $160,000 single, gets no deduction at all and considers this a personal insult from the tax code.

Paying off vs. deducting

Never keep a loan for the deduction. At a 22% bracket, $1 of interest saves 22 cents of tax at most; you are still out 78 cents. Compare the loan rate with what else the money could earn after tax. For many borrowers with rates under about 4%, investing in a 401(k) match first makes sense; above about 7%, extra payments often beat investing. Federal borrowers should also consider forgiveness programs before prepaying.

Claiming it

Enter the interest from Form 1098-E in your tax software; it flows to Schedule 1 as an adjustment to income. Keep loan statements showing interest paid. Unlike mortgage interest, you do not need to itemize. Rental owners: interest on loans used for a rental is a different deduction entirely; see rental deductions.

Common mistakes

• Filing separately and expecting the deduction.
• Parents deducting interest on a child's loan in the child's name.
• Missing small interest amounts with no 1098-E.
• Claiming while being someone's dependent.
• Ignoring the phaseout, especially after a raise.

Planning moves near the phaseout

If your income sits inside the phaseout range, the deduction behaves like a small extra tax on raises. A few ways to stay below the floor:

• Increase pre-tax 401(k) or 403(b) deferrals.
• Fund an HSA through payroll if you have an eligible health plan.
• Make a deductible traditional IRA contribution if you qualify.
• Time bonuses or self-employment income where you control it.
• Harvest capital losses to offset gains that inflate AGI.

Each of these is worthwhile on its own; restoring the student loan deduction is a bonus. Early retirees with low MAGI usually get the full deduction automatically; see the standard deduction for early retirees.

Quick reference

State taxes

Most states with an income tax start from federal AGI, so the deduction usually flows through to the state return automatically. A few states compute income differently or offer their own student loan breaks, such as credits for graduates who stay and work in the state. Check your state revenue department's instructions, especially if you moved during the year.

Records

Keep each year's Form 1098-E, loan statements, and any refinancing documents showing the new loan paid only student debt. Three years after filing is the usual minimum.

Employer repayment benefits

If your employer offers student loan repayment under an educational assistance program, up to $5,250 a year can be tax-free. That beats any deduction, but interest paid with that money cannot also be deducted.

Bottom line

The student loan interest deduction is small but easy: no itemizing, one form, and a meaningful break for borrowers under the phaseout. Know whose name is on the loan, avoid married filing separately unless the payment savings justify it, and manage MAGI if you are near the range. Then focus on the bigger question: how fast to pay the loan off at all.