FOR PRO ATHLETES

I Reviewed 40 Pro Athletes' Business Taxes. One Signing Bonus Mistake Cost $127,500.

(Big Number In, Bigger Number Out, Nobody Flagged The Difference)

Business taxes for a pro athlete are not the beast that hits a W-2 employee, and treating them the same is how seven-figure earners end up owing six figures they never saved. I spent this quarter reviewing the books of 40 pro athletes across three sports. This is what happened to one player's $850,000 signing bonus, and what to do before your next payout lands.

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Real accountants Flat monthly pricing Taxes filed for you

Phoenix · Updated September 24, 2026 · 6 min read

Trainer coaching a client through a stretch

Forty athletes. Three sports. One pattern.

$127,500

shortfall on one $850,000 signing bonus

“I'd earned more money by 25 than most people see in a lifetime, and I still had no idea where my own money was actually going. Now I get a number I trust every month, not just a form in April.”

The player · Second-year pro, taxed in 8 states

Your business taxes cross eight state lines. His did.

Every state where you play a game, hold a paid appearance, or run a camp wants a piece of what you earned there. The jock tax applies state by state, so a road schedule and two offseason appearances can trigger a stack of separate filing obligations. One second-year player we worked with owed tax in far more states than his prior preparer had ever filed for him, and the gap had been growing every season.

Do this today: List every state where you played, appeared, or ran a camp this year. If it is more than 3 and your accountant only filed in your home state, you have a problem that compounds every year.

Consultant presenting at a whiteboard to a full table — One player, taxed in 8 states, returns filed in 2. The other six were still waiting.

Nobody is auditing your advisors' invoices but you

Agent fees, marketing agency cuts, and advisor fees all come out before you ever see the number, and almost none of it gets reviewed line by line. A standard percentage agent fee on a multi-million dollar contract adds up to real money fast. Nobody checks whether it was calculated on the right base, applied to escrowed amounts it should not have touched, or double-charged across a renegotiation. Players who ask for the itemized breakdown almost always find something.

Do this today: Request an itemized invoice from every agent, agency, or advisor taking a cut this month. If they hesitate, that hesitation is the answer.

A 3 percent fee nobody checked

Contract value$6,200,000

Agent fee at 3 percent$186,000

Itemized breakdown requestedNever

Reviewed line by line by anyone$0

Your signing bonus is not taxed the way you think

Signing and roster bonuses are withheld as supplemental wages at a flat federal 22 percent, regardless of the bracket you actually land in. If your real effective rate is closer to 37 percent once state and local taxes stack up, that gap waits for you at filing time. The player's $850,000 signing bonus had $187,000 withheld. His actual liability was $314,500, and nobody told him to set the rest aside. The gap moves with your bracket, not your bonus size: if your combined federal and state rate is closer to 30 percent, the 22 percent withholding is close enough to hold you over. If your total contract puts you in the top bracket with a high-tax state on top of it, the withholding will fall short almost every time, and the difference needs to move to a separate account the week the bonus lands, not wait for the accountant to notice in April.

Do this today: Every time a bonus hits, calculate the gap between what was withheld and your real effective rate, and move that difference to a separate account the same week.

The $850,000 signing bonus

Withheld at 22 percent$187,000

Actual liability near 37 percent$314,500

The gap, $127,500, was discovered at filing

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04AMADAE

The business taxes nobody is tracking in real time

Behind every mistake above is the same pattern: nobody was watching the money as it moved. State filings, agent fees, and the bonus withholding gap all show up on paper eventually, but by the time a generalist preparer catches them the season is over and the cash is spent. Amadae's real accountants run quarterly estimates that account for every state where you owe and every bonus taxed differently than salary, the week a check hits. Books, payroll, and taxes in one flat monthly price, and you know your real number every month of the year.

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Who handles what

	Generalist preparer	Amadae
Files in every state where you owe	Home state
Bonus withholding gap flagged the week it lands
Agent and advisor invoices itemized and checked
Quarterly estimates across every state and bonus	Extra fee
A real number every month of the year
Flat monthly price	Hourly

Q4 is your planning window, not just the grind of the season

The last quarter feels like the sprint: games, travel, appearances, all earned. It is also the only stretch of the year with enough signal left to plan, and the players who start next year ahead use it to model tax exposure while there is still time to act.

Do this today: Block two hours this month with your tax advisor to model this year's income before Q4 closes.

Person writing plans in a spiral notebook — Two hours in October modeling the year's income beats a scramble in April, every time.

Your career has a window. Your tax plan should assume it.

The average pro career across the major leagues is short, often over before a player turns 30. Most athlete tax strategies are built like the income will last 30. That mismatch is how players with seven-figure contract years end up with a retirement account that reflects a much smaller number. A solo 401(k) built around endorsement or LLC income, timed to your highest-earning years, shelters real money while the window is open.

Do this today: Ask whether your retirement contributions are sized for a 6-year window or a 30-year one. If nobody can answer clearly, that is the tell.

Built for a 3 to 6 year window

Solo 401(k) on endorsement or LLC income
Contributions timed to peak-earning years
Multi-state filings tracked state by state
Every bonus gap calculated the day it lands
A plan sized for 30 years of this income
Waiting until year 7 of a 6-year career

BONUSAMADAE

Bonus: The review that caught the $127,500 before it happened twice

Once the player moved his accounting to Amadae, the same bonus structure showed up on his next roster bonus: same 22 percent withholding, same real liability near 37 percent. This time the gap was flagged within a week of the payment, not discovered at filing. Multi-state filings, agent fee audits, and bonus gaps, all tracked before they turn into a six-figure surprise.

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“I'd earned more money by 25 than most people see in a lifetime, and I still had no idea where my own money was actually going. Now I get a number I trust every month, not just a form in April.”

The player

Second-year pro, taxed in 8 states

$127,500 gap flagged within a week, not at filing

Forty athletes. Three sports. One pattern.

$127,500

shortfall on one $850,000 signing bonus

states one player owed in; he had filed in 2

$186,000

a 3 percent agent fee on a $6.2M contract, unreviewed

3 to 6

years the average pro career lasts

From Amadae's review of 40 pro athletes' books. Your numbers will differ.

Accounting built for a short, high-stakes window

Books, payroll, and taxes from real accountants, for one flat monthly price starting at $249.

Quarterly estimates that include every state where you owe and every bonus
Agent, agency, and advisor invoices itemized and checked
LLC and S-corp setup with payroll for endorsement income
Year-end federal and multi-state returns filed for you

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$249/mo

If you make $40K - $69K. Flat, no hourly bills.

Monthly profit and loss reports
Tax set-aside management
Expense categorization
Real-time financial dashboard
Business bank account connections
Individual tax return included*

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Flat monthly pricingReal accountantsTaxes filed for you

Straight answers

Questions creators ask us

My business manager already handles my taxes.+

Ask them how many state returns they filed for you last year and whether they checked the agent's invoices against the contract documents. If either answer is slow, that is the gap. The intro call is a second set of eyes, not a replacement you have to commit to.

I might only play a couple more years. Is it worth changing now?+

That is exactly when it matters most. A short window means every bonus, every state, and every retirement contribution has to be right the first time, because there is no year 10 to make it up.

What does it cost?+

Plans start at $249 a month, flat. No hourly bills, no percentage of your contract.

Sources

IRS: Estimated Taxes · IRS
IRS Form 1040-ES, Estimated Tax for Individuals · IRS
IRS Tax Withholding Estimator · IRS
IRS: Understanding Employment Taxes · IRS

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