NIL Income Tax Calculator 2026

NIL deals are self-employment income — meaning you owe SE tax (15.3%) on top of federal and state income tax, with zero withholding. Most NIL athletes owe 35–50% of gross NIL in total taxes and must make quarterly estimated payments or face IRS penalties.

How NIL income is taxed in 2026

NIL deals — brand partnerships, appearances, social media content, autograph signings, merchandise royalties — generate self-employment income. Unlike a W-2 job where your employer withholds taxes automatically, NIL payments arrive gross. You owe three layers of tax on every dollar.

Layer 1: Self-employment (SE) tax — 15.3%

SE tax is the combined employee and employer share of Social Security and Medicare. As a sole proprietor or single-member LLC, you pay both halves yourself:

• Social Security: 12.4% on SE income (NIL × 92.35%), capped at the 2026 SS wage base of $184,500¹
• Medicare: 2.9% on SE income — no dollar cap
• Additional Medicare: 0.9% on SE income above $200,000 (single) or $250,000 (MFJ)

The 92.35% factor approximates the W-2 setting where only employee wages (not the employer's share) are taxed. You can then deduct half of your total SE tax above the line on Form 1040, reducing your AGI before income tax is calculated.

Layer 2: Federal income tax

Federal income tax applies to your taxable income: AGI minus the 2026 standard deduction of $16,100 (single) or $32,200 (MFJ).² The 2026 brackets:²

10% and 12% thresholds confirmed per IRS Rev. Proc. 2025-32; 22%–35% thresholds calculated at 2.3% OBBBA inflation adjustment above 2025 base; 37% threshold confirmed at $640,600 (IRS). MFJ thresholds approximately doubled for lower brackets; MFJ 37% threshold confirmed at $768,700.

Layer 3: State income tax

States tax NIL income the same as other self-employment income. Athletes domiciled in FL, TX, NV, WA, TN, WY, SD, AK, or NH pay zero state income tax on NIL earnings — a meaningful advantage when a college athlete expects to sign a professional contract and move. High-tax states: CA (9.3% at typical NIL income levels), NY (6.85%), OR (8.75%), and MN (7.85%).

Quarterly estimated payments

NIL payments don't include withholding. You're responsible for making estimated tax payments four times per year. Missing a deadline triggers an IRS underpayment penalty — currently the federal short-term rate plus 3 percentage points, compounding daily. The safest approach: pay 100% of your prior-year tax liability (110% if prior AGI exceeded $150,000) across the four quarters regardless of current-year earnings.

2026 due dates: April 15, June 16, September 15, January 15 (2027). Pay at IRS Direct Pay (irs.gov/payments) — no account needed.

Four ways to reduce your NIL tax bill

1. Max your Solo 401(k). On endorsement income from a sole prop or LLC, you can contribute up to $24,500 as an employee deferral plus ~20% of net SE income as an employer contribution — up to $72,000 combined in 2026.³ Each dollar contributed reduces your taxable income dollar-for-dollar.
2. Fund a Roth IRA. $7,500 limit in 2026. Phase-out begins at $153,000 (single) / $242,000 (MFJ).³ Most NIL athletes are well under those thresholds. The Roth window — low income years before a professional contract — is one of the best retirement savings opportunities you'll ever have.
3. Deduct legitimate business expenses. As a self-employed athlete, agent fees on your NIL deals, equipment used for content creation, travel for NIL appearances, and a home studio setup are deductible via Schedule C. Read the athlete tax deductions guide for the full list of what qualifies.
4. Consider an S-corp once NIL clears ~$75K. Electing S-corp status and splitting income between a FICA-subject salary and SE-tax-free distributions typically saves $8,000–$25,000/year above the $75K threshold. The calculator above models this comparison.

Sources

1. IRS IR-2025-244 — 2026 Social Security wage base $184,500; 401(k) elective deferral limit $24,500; IRA contribution limit $7,500
2. IRS — 2026 Tax Inflation Adjustments (Rev. Proc. 2025-32) — 2026 standard deduction $16,100 single / $32,200 MFJ; 10% bracket $0–$12,400; 12% bracket to $50,400; 37% threshold confirmed at $640,600 (single) / $768,700 (MFJ)
3. IRS Notice 2025-67 — 2026 Retirement Plan Amounts — Solo 401(k) combined limit $72,000; IRA limit $7,500; Roth IRA phase-out $153,000–$168,000 (single) / $242,000–$252,000 (MFJ)
4. Tax Foundation — 2026 State Individual Income Tax Rates and Brackets — state rate data for CA, NY, NJ, OR, MN, and all states used in calculator

Calculator values verified June 2026. Estimates only — not a substitute for advice from a licensed CPA or tax professional. Actual tax liability depends on your complete income picture, deductions, credits, and state-specific rules.