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NIL quarterly estimated tax calculator

Estimate the four quarterly payments an athlete owes on NIL and revenue-share income — sized to the IRS safe harbor so they avoid underpayment penalties.

Annual NIL / revenue-share income$250,000
Home state
Filing status
Entity
$20,186
per quarter to stay inside the §6654 safe harbor and avoid underpayment penalties
$20,186
Apr 15
$20,186
Jun 15
$20,186
Sep 15
$20,186
Jan 15
Total annual tax$89,715
Required pre-payment$80,744
Self-employment income has no withholding, so the IRS expects four payments a year. The safe harbor is the lesser of 90% of this year's tax or 100% (110% if prior-year AGI > $150k) of last year's.
Computed under 2025 (as of 2025-07-04) tax law · estimate for planning, not advice.
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Why NIL athletes owe quarterly estimated taxes

NIL and revenue-share income generally arrives with no tax withheld, so the IRS expects the athlete to pre-pay it in four estimated tax installments — due April 15, June 15, September 15, and January 15. Skip them and an underpayment penalty accrues, even if the full balance is paid by April. Self-employment tax (15.3%) plus federal and state income tax all flow into these payments, which is why the quarterly number is often larger than first-time earners expect.

The safe harbor — how to avoid the penalty

You're protected from the penalty if your payments cover the §6654 safe harbor: the lesser of 90% of this year's tax or 100% of last year's — 110% if prior-year AGI topped $150,000, which is common for funded athletes. An S-Corp owner's W-2 withholding counts as paid evenly and reduces what's due in estimates (toggle the entity above to compare). For a number that also reflects deductions, multi-state allocation, and retirement, build the full plan in the SidelineWealth planner.

Frequently asked

Do NIL athletes have to pay quarterly taxes?
Usually yes. NIL and revenue-share income generally has no withholding, so the IRS expects estimated tax in four installments (April 15, June 15, September 15, and January 15). Missing them triggers an underpayment penalty.
What is the safe harbor?
You avoid the penalty if your payments cover the lesser of 90% of this year's tax or 100% of last year's tax — 110% if your prior-year AGI was over $150,000, which is common for funded athletes.
How does an S-Corp change quarterly estimates?
An S-Corp owner's W-2 withholding counts as paid evenly through the year and reduces what's due in estimates. Toggle the entity to compare.
Is this exact?
It's a planning estimate from the inputs you enter. Your actual liability depends on deductions, multi-state allocation, and credits. Build a full plan and confirm with a CPA.
More free NIL tax tools
NIL S-Corp Tax Savings CalculatorSee how much an S-Corp election saves an athlete vs. a sole proprietorship — net of running cost.Jock Tax Multi-State Allocation CalculatorAllocate income by duty days across states and see what a single-state view would miss.S-Corp Reasonable Compensation CalculatorFind a defensible reasonable-comp salary for an athlete's S-Corp — without inviting an audit.