The First 90 Days After Signing

What this brief is

Athletes lose more money to the first 90 days after the first big contract than to any other 90-day window in their career. Agents negotiate the headline number. Advisors show up for the wealth-management pitch. In between those two events sits a set of tax and residency decisions that quietly compound for the next thirty years. This brief walks the five that matter most, in the order they arrive.

The audience is the athlete, the athlete's parent, the agent's back office, and the CPA who is about to inherit the client. The paid Athletes' Wealth Playbook (AWP) covers each of these mechanics in full, with worksheets, contract templates, and edition-specific chapters for Pro, College/NIL, High-School, Coach-Parent, and Veteran/Second-Contract. This brief is the free tasting menu.

1. State residency election

Establishing residency in a no-income-tax state — Florida, Texas, Washington, Nevada, or Tennessee — within the first 90 days is worth more than most agent negotiation. The mechanic is unglamorous: file the domicile change, get the driver's license, register to vote, move the bank accounts, sign a lease or buy a home, keep the day-count log. The dollar impact is not.

The illustrative case is Corey Seager's December 2021 signing with the Texas Rangers. The reported ten-year contract was $325 million. California's top marginal rate at the time was 13.3%. Texas has no state income tax. On the base compensation alone (setting aside the multi-state "jock tax" allocations that apply to away games), a full-shift residency change into Texas at the start of the contract is worth an amount that ranges into the tens of millions over the ten-year term, before considering endorsement income sourced to the state of residence.

The practitioner will find the state-residency framework in AWP Chapter 4 and the mechanics of a defensible domicile-change file in Chapter 5. The state-tax differential across major markets is modeled in the free NIL Commitment tool for college athletes and the pro-side team-picker for MLB, NBA, and NFL rosters.

2. Signing bonus timing and sourcing

The signing bonus is treated as ordinary compensation under IRC §61. The state that gets to tax it is the state where the athlete is a resident at the moment of receipt — not the state where the team plays. This is the single most consequential timing decision in the first 90 days, and it is routinely mishandled.

Two rules matter. First, if the bonus is paid before the athlete has established the new domicile, the old state of residence still holds jurisdiction on the receipt, even if the athlete moves the next week. Second, if the bonus is structured as compensation for services (rather than a true signing bonus), the state where the services are performed can also assert taxing rights — and the case law here favors the states.

The practical move: the athlete should not sign the paperwork or accept the wire until the domicile file is complete. A one-week delay in the wire, matched to a completed move-in, can be worth seven or eight figures on a large contract. The AWP walks the bonus-sourcing rules in Chapter 6, with a sample timeline showing where the bonus, the domicile change, and the season-start date must sit relative to one another.

3. Estimated tax setup — the first quarterly is the trap

The rookie-year estimated-tax filing is where a large fraction of first-year athletes get caught. Federal Form 1040-ES payments are due April 15, June 15, September 15, and January 15. The rookie who signs in June or July is often looking at the September 15 filing as the first payment, and by then the underpayment penalty clock has been running since April.

The athlete's CPA needs to do three things within the first 60 days:

• Compute a bona-fide safe-harbor estimate under the 110%-of-prior-year rule (available if the prior-year AGI exceeded $150,000) or the 90%-of-current-year rule. Rookies usually have to use the current-year rule because prior-year income was minimal.
• File the first quarterly on the correct schedule — and, if the athlete received a large signing bonus mid-year, file a matching state estimated payment in every state where a filing obligation now exists.
• Set up the withholding architecture on the roster salary, endorsement income, and any NIL or LLC pass-through. The athlete's W-2 team salary does not cover the endorsement Schedule C income, and the endorsement income does not cover the LLC K-1. Each has its own withholding or estimated-payment path.

The AWP walks the full first-year filing calendar in Chapter 8, with a worked rookie example showing the safe-harbor election, the state allocations, and the quarterly payment schedule.

4. The Bobby Bonilla lesson — deferred comp travels with the athlete forever

The Bobby Bonilla contract is famous because the New York Mets agreed in 2000 to defer $5.9 million of buyout money into an annuity that pays Bonilla approximately $1.19 million every July 1 from 2011 through 2035. The contract is remembered as a curiosity. It is also the cleanest single illustration of a rule that shapes every high-earner's post-career life: deferred compensation is taxed where the services were earned, not where the athlete lives when the check arrives.

IRC §114 — the source rule for nonqualified deferred compensation, enacted as part of the 1996 “Amtrak Reauthorization and Improvement Act” state-tax reform — sources deferred comp to the state where the athlete earned it, subject to specific conditions. If the deferral is structured as substantially equal periodic payments over at least ten years, only the federal government and the state where the athlete resides when the payments are made can tax them. If the deferral is not so structured, the state where the services were performed retains the right to tax.

This is why the athlete who plays in New York or California and defers a big chunk of the contract should structure the deferred-comp stream to fit the §114 ten-year-or-more window. Once the athlete moves to Florida or Texas in retirement, the New York or California question stops travelling with the payment. Structure it wrong, and the source state keeps taxing every check.

5. What comes next

Beyond the first 90 days, the same architecture keeps compounding. The residency file needs to survive an audit five years out. The bonus sourcing has to reconcile against the state returns filed in the season the money moved. The estimated-tax cadence has to be maintained through years when income is uneven — option bonuses, incentive escalators, roster-bonus triggers, endorsement renewals. The deferred-comp structure locks in on day one and lives for thirty years.

The practitioner who wants the full mechanics will find them in the paid AWP. The athlete who wants the surrounding library — state-tax case studies by team, the college-side NIL tool, the sports-division case studies covering the Cowboys, Rams, Jaguars, Clippers, Yankees, Packers, Bears, and Seahawks — will find them free on the Institute site.