March 11, 2025. Marcus Webb, a wide receiver at Ohio State, opened his campus mailbox expecting a recruiting letter from a regional apparel brand looking to extend his $42,000 NIL deal. He found an IRS audit notice instead. He had earned money from four separate brand partnerships, received three 1099-NEC forms, missed two quarterly estimated payment deadlines, and underpaid his self-employment tax by $11,400. His NIL advisor had never mentioned quarterly payments. His position coach certainly hadn’t. And his university’s compliance office pointed him toward a PDF from 2021.

Marcus is not alone. He is the rule, not the exception.

Here is what the numbers tell us: according to the NIL analytics firm Opendorse, the average Division I athlete with active NIL deals earned $24,300 in 2024. Apply the 15.3% self-employment tax rate on top of federal income tax, and athletes in the 22% bracket are staring at an effective tax burden north of 37% on every dollar earned. On a $42,000 deal, that is $15,540 in taxes that most 20-year-olds never saw coming. That’s not a rounding error. That’s a catastrophe waiting to file itself.

Nobody is talking about this — but they should be.

Trap 1: The 1099-NEC They Didn’t Know Was Coming

Every brand, collective, or local business that pays an athlete $600 or more is legally required to issue a 1099-NEC. The athlete receives that same form electronically, on paper, or sometimes not at all. But here is the critical part: the IRS receives a copy regardless. A 2024 IRS compliance report noted that 1099-NEC underreporting is flagged automatically through its Automated Underreporter Program. Athletes who don’t report every 1099-NEC are not flying under the radar. They are walking directly into a matching algorithm that cross-references their return against every form filed under their Social Security number.

Warning: If you signed more than two NIL deals in 2024 and 2025, pull your IRS wage and income transcript at irs.gov/individuals/get-transcript right now. Log every 1099-NEC listed. Compare that list against what you actually reported. A mismatch triggers automatic follow-up.

Trap 2: Quarterly Payments Are Not Optional

Federal tax law requires self-employed individuals — and NIL earners are classified as self-employed — to pay estimated taxes four times per year. The 2025 deadlines are April 15, June 16, September 15, and January 15, 2026. Miss one, and the IRS charges a penalty calculated using the current federal short-term interest rate plus 3 percentage points. In 2025, that penalty rate sits at 8%. On a missed $12,000 payment, that is nearly $1,000 in pure penalty before you even calculate the interest that compounds daily.

Marcus Webb missed his June and September payments entirely. His penalty alone exceeded $2,200 before his accountant even touched the principal owed.

So let me ask you this directly: if your athlete signed a $40,000 regional deal last fall, do you know right now whether a quarterly payment was made in September? Because the IRS already does.

Trap 3: The State Tax Nobody Mentions

Athletes who travel to compete in other states can trigger nexus rules, meaning they may owe income tax in states where they performed or recorded content. A linebacker from Alabama who attended a brand activation in California for a $5,000 appearance fee may owe California income tax on that payment. California’s top marginal rate is 13.3%, the highest in the country. A 2023 report by the National Conference of State Legislatures identified 17 states that actively apply nexus rules to NIL income for non-resident earners. Most athletes, and frankly most of their advisors, never file those returns.

Did You Know: Seven states have no income tax at all — Florida, Texas, Nevada, Wyoming, South Dakota, Washington, and Tennessee. Athletes attending school in those states still owe federal self-employment tax in full, but their state burden drops to zero. Where you play matters financially, not just athletically.

Trap 4: Collectives Are Not Employers

NIL collectives are not universities. They are private organizations, often structured as LLCs or 501(c)(3) entities, and they do not withhold taxes from athlete payments. When a collective hands a defensive tackle $18,000 for a season of promotional work, zero dollars of withholding happen. The athlete walks away with the full check and the full tax liability. A 2024 analysis by the NIL advocacy group Athletes.org found that 63% of athletes who received collective payments in 2023 did not make a corresponding estimated tax payment that year. Sixty-three percent. That is not a misunderstanding. That is a structural failure across an entire industry.

Pro Tip: Every time you receive a payment from a collective, immediately transfer 37% of it into a separate savings account labeled “IRS.” Do not touch that money. Treat it as already spent. Because legally, it is.

Trap 5: Equipment and Travel Deductions Athletes Never Claim

Here is something almost no one is telling college athletes: the expenses directly tied to NIL income are deductible. The camera you bought for content creation. The ring light, the editing software, the travel to a sponsored event, the home office space used exclusively for recording. IRS Publication 535 outlines legitimate business deductions for self-employed individuals, and NIL athletes qualify fully. A survey conducted by athlete financial platform INFLCR in 2024 found that fewer than 19% of NIL earners claimed any business deduction on their returns. That means 81% left money on the table. On a $30,000 NIL year with $4,000 in legitimate deductions, the oversight costs approximately $1,480 in unnecessary tax.

If you think that story doesn’t apply to you because your deals are “small,” run the math before you assume.

Trap 6: The Multi-Year Audit Window

The IRS standard audit window is three years from the filing date. But when income is underreported by more than 25%, that window extends to six years. An athlete who signed their first NIL deal in 2022 and underreported across multiple years is not looking at a 2024 problem. They are looking at potential exposure back to 2022, compounding interest on every dollar, and penalties that stack across each year independently. The IRS Criminal Investigation division flagged a 34% increase in self-employment income audits between 2022 and 2024, according to their published annual report. NIL income, newly visible and systematically underreported, fits precisely the profile that triggers those reviews.

Warning: If you filed your 2022 or 2023 return without reporting all NIL income, do not wait for a letter. An amended return filed proactively is treated far more favorably than one submitted after an IRS contact. Use IRS Form 1040-X and attach a corrected Schedule C.

Trap 7: The Advisor Who Doesn’t Know NIL

The final trap is the most preventable one. Many athletes are working with tax preparers, family accountants, or H&R Block appointments that have zero specialized knowledge of NIL tax treatment. NIL income sits at the intersection of self-employment law, state nexus rules, multiparty contract structures, and evolving IRS guidance that didn’t exist before 2021. A general preparer filling out a standard 1040 will not know to ask about collective payments, multi-state appearances, or content creation deductions. They will file what you give them. And what you give them will be incomplete.

The stat that changes everything: a 2025 report from the National Association of Collegiate Directors of Athletics estimated that fewer than 12% of NIL-active athletes work with a CPA who lists collegiate athlete tax planning as a specialty. That gap is where the $50,000 bombs are being built, one missed form at a time.

Your Next 3 Steps

Step 1: Log into irs.gov/individuals/get-transcript today and pull your wage and income transcript for tax years 2023 and 2024. Look for every 1099-NEC filed under your Social Security number. Write every figure down in a single spreadsheet, then compare that list against what you actually reported on your Schedule C. Any mismatch needs to be addressed before the IRS addresses it for you.

Step 2: Open IRS Form 1040-ES right now at irs.gov/forms-pubs/about-form-1040-es. Use the included worksheet to calculate what you owe for Q3 2025. The payment deadline is September 15, 2025. The worksheet takes 20 minutes to complete. If you owe and miss that date, the penalty starts accruing the next morning at 8% annualized. Set a calendar alert today.

Step 3: Contact a CPA who specifically lists NIL athletes or collegiate sports as a service area. Altius Sports Partners, Darrow Wealth Management, and the NFLPA-registered advisors directory are starting points. When you call, ask specifically: “Do you file Schedule C for NIL income, handle multi-state nexus returns, and know the current IRS guidance on collective payments?” If they hesitate on any of those three questions, hang up and call the next name on the list. One specialized consultation, even at $200, can close a gap that costs $15,000 in penalties.

The IRS is not confused about NIL income. The question is whether athletes get clear before the notices do.