Blog · 16 October 2026

Student Loan Interest Deduction in 2026: The §221 MAGI Phaseout, Form 1098-E and What US CPA Firms Should Check for Freelancers

By Keshav Bansal, CA

The student loan interest deduction under IRC §221 is small—at most $2,500 a year—but it is one of the few adjustments where a freelancer’s other planning decides whether it survives. For 2026, Rev. Proc. 2025-32 §4.29 phases the deduction out between $85,000 and $100,000 of modified adjusted gross income (MAGI) for single filers and between $175,000 and $205,000 for joint returns. A recent CentSense explainer for freelancers made the practical point well: the deductible half of self-employment tax and deductible retirement contributions lower MAGI, so they can restore a deduction your client would otherwise lose. Here is how the rules actually work, and what US CPA firms should check on 2026 returns.

The basic rule

Per IRS Topic No. 456 and Publication 970 (chapter 4), you may deduct the lesser of $2,500 or the interest you actually paid during the year on a qualified student loan, including voluntary prepayments of interest. It is claimed as an adjustment to income on Schedule 1 (Form 1040)—line 21 on the 2025 form—so the client does not need to itemize. The $2,500 cap is fixed in §221(b)(1); only the MAGI thresholds are inflation-adjusted under §221(f).

The client can claim it only if all of the following apply (Topic 456):

• They paid interest on a qualified student loan during the year and are legally obligated to pay that interest.
• Their filing status is not married filing separately (§221(e)(2) requires a joint return for married taxpayers).
• Neither they nor their spouse, if filing jointly, is claimed as a dependent on someone else’s return (§221(c)).
• MAGI is below the annual limit.

A qualified student loan is one taken out solely to pay qualified higher education expenses for the taxpayer, spouse, or a person who was their dependent when the loan was taken out, for an eligible student enrolled at least half-time. Pub. 970 notes that interest paid by someone else on the borrower’s behalf—a parent’s gift payment, for example—is treated as paid by the borrower if they are the one legally obligated.

2026 phaseout figures

• Single, head of household, qualifying surviving spouse: phaseout begins above $85,000 MAGI; no deduction at $100,000 or more (unchanged from 2025, per Pub. 970).
• Married filing jointly: phaseout begins above $175,000; no deduction at $205,000 or more (2025 was $170,000–$200,000, per Pub. 970).

Inside the band, §221(b)(2)(B) reduces the deduction proportionally: the excess of MAGI over the threshold divided by $15,000 ($30,000 joint). The Pub. 970 worksheet rounds that ratio to at least three decimal places.

How MAGI is defined—and why above-the-line deductions matter

Per §221(b)(2)(C) and Pub. 970, MAGI for this purpose is adjusted gross income figured without the student loan interest deduction itself, then increased by any foreign earned income exclusion, foreign housing exclusion or deduction, and the exclusions for bona fide residents of American Samoa and Puerto Rico. For most clients, Pub. 970 says, MAGI is simply AGI before subtracting the student loan interest deduction.

That definition is the planning lever. Pub. 970’s Worksheet 4-1 starts with total income and subtracts the other Schedule 1 adjustments—on the 2025 form, these include the HSA deduction, the deductible part of self-employment tax, self-employed SEP, SIMPLE and qualified plans, and the self-employed health insurance deduction. Because those come off before MAGI is measured, they do reduce MAGI. By contrast, deductions taken after AGI, such as the §199A deduction covered in our QBI deduction guide, and Roth contributions (which are not deductible) do not help. Eligible HSA contributions do; see our note on HSA eligibility under Notice 2026-05.

A freelancer example

CentSense’s 2026 example uses a single freelancer with $100,000 of Schedule C profit and $2,900 of student loan interest. After subtracting the deductible half of self-employment tax, MAGI is $92,935.22, and the deduction falls to $1,177.50. A $10,000 deductible retirement contribution lowers MAGI to $82,935.22—below the $85,000 threshold—and restores the full $2,500. We re-ran the arithmetic against the statutory formula and the Pub. 970 worksheet and got the same MAGI and deduction figures. The lesson for reviewers: run the §221 worksheet after retirement-plan and health-insurance decisions are final, not before.

Form 1098-E is an information return, not a gate

Per the 2026 Instructions for Forms 1098-E and 1098-T, a lender or servicer that receives $600 or more of student loan interest from an individual in the course of its trade or business must file Form 1098-E; the threshold applies per borrower. Missing a 1098-E does not end the analysis. Pub. 970’s own example has a borrower who received no 1098-E because the interest paid was under the reporting threshold—and who still deducts the qualifying interest from the lender’s account statement. For loans made before September 1, 2004, box 1 may omit capitalized interest and loan origination fees, which can still be deductible under the payment-allocation rules in Pub. 970.

What does not qualify

• Related-party and employer-plan loans. Loans from a related person (§267(b) or §707(b)(1))—including parents, grandparents, siblings and a spouse—or from a qualified employer plan are not qualified education loans. Clients funding school with family money should look at the rules in our AFR and family loans guide instead.
• Employer §127 payments. Interest paid by an employer under an educational assistance program after March 27, 2020, and excluded from the employee’s income cannot also be deducted (§221(e)(1); Pub. 970).
• Double benefits. No deduction for amounts deductible elsewhere, and the deduction is reduced by tax-free 529 earnings used to pay student loans.
• Interest the client is not obligated to pay. Under Pub. 970, interest on a loan the taxpayer is not legally obligated to pay—such as payments toward a sibling’s loan—is not deductible by the payer.
• Schedule C. Student loan interest is personal interest allowed only through §221. Pub. 970’s worksheet says not to include the amount in figuring any other deduction, such as on Schedule A, C or E—even for a freelancer whose degree drives the business.

Checklist for US CPA firms

• Confirm filing status (no MFS) and that nobody can claim the client as a dependent.
• Collect every Form 1098-E and the servicer’s annual statements; reconcile interest under $600 and any capitalized interest separately.
• Ask about employer student-loan benefits and 529 distributions used for loans.
• For self-employed clients near $85,000 / $175,000, model retirement-plan and HSA contributions before finalizing the §221 amount.
• Use Worksheet 4-1 in Pub. 970 when the client files Form 2555 or 4563 or excludes Puerto Rico income.

Where Tax Brew fits

Freelancer returns stack small adjustments that interact: SE tax, retirement plans, health insurance, HSAs and §221. Tax Brew provides bookkeeping, cleanup and tax prep support for US CPA firms, so Schedule C books and source documents arrive organized; your team keeps the advice and sign-off. See our services, or email info@taxbrewglobal.com.

Sources: IRC §221 (Cornell LII); Rev. Proc. 2025-32 §4.29; IRS Topic No. 456; IRS Publication 970 (2025), chapter 4; 2026 Instructions for Forms 1098-E and 1098-T; CentSense — Student Loan Interest Deduction for Freelancers. General information, not tax or legal advice.