The deadline for filing a 2025 federal tax return falls on April 15, 2026 — and for millions of Americans carrying student loan debt, the window to claim the IRS student loan interest deduction is closing fast. For some borrowers, especially those with fluctuating income, the difference between claiming that deduction and missing it entirely can hinge on paperwork they didn’t know they needed to track.
I met Marian LaRoche on a Tuesday morning in late February at a free tax preparation clinic run out of a community center in Tampa’s Seminole Heights neighborhood. She was sitting near the back of the room with a manila folder stuffed thick with W-2s, 1098-E forms, and what appeared to be three years of pay stubs held together with a rubber band. She looked like someone who had arrived expecting a quick appointment and slowly realized it was going to be a longer conversation than she’d planned.
A High Earner With a Complicated Return
On paper, Marian LaRoche’s financial life looks stable. She is 29 years old, a licensed registered nurse working at a large hospital system in Tampa, and in 2025 she brought home roughly $97,000 in total compensation — base salary plus significant overtime and per diem shift differentials that fluctuated month to month. She is also the primary caregiver for her mother, who moved in with her in early 2023 after a hip replacement complicated by post-surgical infection.
What doesn’t show up in those numbers is the $78,400 she still owes in federal student loans from a graduate nursing degree she completed in 2021 — or the fact that she had not once, in three filing seasons, successfully claimed the IRS student loan interest deduction she was potentially eligible for.
“I always assumed I made too much,” Marian told me when we sat down together at one of the clinic’s folding tables. “My base is around $78,000, but with overtime and per diem, I kept thinking I’d blown past the limit. So I just… stopped trying to figure it out.”
That assumption, it turned out, had cost her. According to the IRS guidance on Topic No. 456, the deduction phases out gradually — meaning a borrower doesn’t lose it entirely the moment their income crosses $75,000. The phase-out is proportional, and in years where Marian’s overtime was lower, her modified AGI likely fell squarely within the eligible range.
Three Years of a Missed Deduction
The clinic’s volunteer tax preparer, a retired CPA named Gerald, spent nearly forty minutes working backward through Marian’s prior filings with her. What emerged was a picture of consistent, preventable overpayment.
In tax year 2022, Marian’s total income including overtime came to approximately $81,200. Because she worked fewer per diem shifts that year — she was helping her mother through rehabilitation — her modified AGI likely would have qualified for a partial deduction. In 2023, a year when she worked substantially more overtime, her income climbed to around $94,000, which would have pushed most or all of the deduction out of reach. In 2024, the picture was murkier: she estimated her overtime income but had not tracked it carefully enough to calculate a precise MAGI figure when she filed on her own.
“I do my own taxes,” she said, almost apologetically. “Or I did. I’d use one of the online services, click through the screens, and just trust that it was right. I never went back to double-check.”
The Emotional Arithmetic of Irregular Pay
What made Marian’s situation harder to untangle was not just the dollar amounts — it was the irregularity that made every year feel different from the last. Nursing, especially hospital nursing, does not come with a predictable paycheck. Marian described her monthly take-home as something that swung between roughly $5,400 and $9,800 depending on how many extra shifts she picked up.
“When you’re pulling double shifts because someone called out, you don’t think ‘oh, this is going to affect my tax bracket,” she told me. “You think: I need sleep and I need to pay my student loans. The taxes feel like a problem for Future Marian.”
That cycle — hustle hard, spend impulsively to decompress, then panic when bills pile up — is one Marian described with notable self-awareness. She mentioned buying a $1,200 massage chair during a particularly brutal stretch of night shifts in October 2024. She mentioned it the way someone confesses a minor crime: voluntarily, with a wince. “I have zero regrets about that chair,” she said, then immediately added, “I have some regrets about that chair.”
The financial psychology here matters because it shaped how she interacted with tax time. For Marian, filing taxes was something to get through, not something to optimize. The complexity of tracking variable income across multiple pay periods made her more likely to accept whatever number the software produced and move on.
What the Clinic Actually Found
Gerald, the volunteer preparer, walked Marian through her 2025 return first. She had paid $2,190 in student loan interest during the calendar year — just under the $2,500 cap. According to her final pay stub and W-2 from her hospital employer, her total 2025 gross income was $97,340. After pre-tax deductions including her 403(b) contributions and her employer health plan, her MAGI came in closer to $84,600.
That figure placed her squarely within the phase-out range. Using the IRS formula — which reduces the maximum deduction proportionally based on how far above $75,000 a filer’s MAGI falls — Marian was eligible to deduct approximately $1,035 of the interest she’d paid. At her effective tax rate, that translated to a federal tax savings of roughly $228 on her 2025 return.
The 2023 year was a genuine miss — her income was too high that year regardless. But 2022 and 2024 were different. Gerald flagged that Marian may have been eligible for partial deductions in both those years and suggested she speak with a tax professional about whether filing amended returns made sense, given that the 2022 window was closing imminently.
“He kept saying ‘it depends,’ which I know is not the answer I wanted,” Marian told me. “But even the idea that there might be something there — I don’t know, it made me feel stupid for not looking sooner.”
The Mixed Outcome — and What Comes Next
Marian left the clinic that morning with her 2025 return completed and a referral to a licensed enrolled agent who could review her 2022 and 2024 filings. She was not, by her own account, leaving with a windfall. The potential recovery from an amended 2022 return would be modest — somewhere in the range of $340 to $420 in additional refund, depending on final calculations. The 2024 amended return could yield another $140 to $180.
Those numbers are not life-changing for someone earning close to six figures. Marian said as much. But the experience seemed to shift something in how she thought about her finances — less about the amounts recovered and more about the realization that her tax situation had been quietly working against her because she hadn’t looked at it carefully.
“I think I’ve been treating taxes like something that happens to me instead of something I can actually manage,” she said as she gathered her paperwork to leave. “I’m a nurse. I manage complicated situations every single shift. I should be able to manage this.”
She paused, then added: “But also I really do need an accountant.”
The IRS VITA program — Volunteer Income Tax Assistance — operates free clinics like the one where I met Marian at locations across the country through the April filing deadline. For borrowers with student loan debt and variable income, those clinics may be one of the few places where someone will actually sit down and work through the math with them.
Marian’s story is not one of dramatic recovery or a check arriving in the mail at just the right moment. It is quieter than that — a young professional realizing, three years too late, that she had been leaving a small but real amount of money unclaimed because complexity felt easier to ignore than to face. The regret she expressed wasn’t theatrical. It was the specific, practical frustration of someone who is very good at her job and still found the tax code genuinely hard to navigate on her own.
As I walked out of the community center that morning, I watched her pull up the number for the enrolled agent Gerald had recommended, already typing before she reached her car. That, at least, felt like a turning point — even if a modest one.
Related: Your IRS Refund Tracker Went Blank After Filing — Here’s What That Actually Means in 2026
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